3 import java_cup.runtime.ComplexSymbolFactory;
4 import java_cup.runtime.ScannerBuffer;
6 import java.util.Arrays;
7 import java.util.ArrayList;
8 import java.util.Collection;
9 import java.util.Collections;
10 import java.util.HashMap;
11 import java.util.HashSet;
12 import java.util.Iterator;
13 import java.util.List;
17 import iotpolicy.parser.Lexer;
18 import iotpolicy.parser.Parser;
19 import iotpolicy.tree.ParseNode;
20 import iotpolicy.tree.ParseNodeVector;
21 import iotpolicy.tree.ParseTreeHandler;
22 import iotpolicy.tree.Declaration;
23 import iotpolicy.tree.DeclarationHandler;
24 import iotpolicy.tree.CapabilityDecl;
25 import iotpolicy.tree.InterfaceDecl;
26 import iotpolicy.tree.RequiresDecl;
27 import iotpolicy.tree.EnumDecl;
28 import iotpolicy.tree.StructDecl;
30 import iotrmi.Java.IoTRMITypes;
33 /** Class IoTCompiler is the main interface/stub compiler for
34 * files generation. This class calls helper classes
35 * such as Parser, Lexer, InterfaceDecl, CapabilityDecl,
36 * RequiresDecl, ParseTreeHandler, etc.
38 * @author Rahmadi Trimananda <rahmadi.trimananda @ uci.edu>
42 public class IoTCompiler {
47 // Maps multiple interfaces to multiple objects of ParseTreeHandler
48 private Map<String,ParseTreeHandler> mapIntfacePTH;
49 private Map<String,DeclarationHandler> mapIntDeclHand;
50 private Map<String,Map<String,Set<String>>> mapInt2NewInts;
51 // Data structure to store our types (primitives and non-primitives) for compilation
52 private Map<String,String> mapPrimitives;
53 private Map<String,String> mapNonPrimitivesJava;
54 private Map<String,String> mapNonPrimitivesCplus;
55 // Other data structures
56 private Map<String,Integer> mapIntfaceObjId; // Maps interface name to object Id
57 private Map<String,Integer> mapNewIntfaceObjId; // Maps new interface name to its object Id (keep track of stubs)
58 private PrintWriter pw;
60 private String subdir;
66 private final static String OUTPUT_DIRECTORY = "output_files";
68 private enum ParamCategory {
70 PRIMITIVES, // All the primitive types, e.g. byte, short, int, long, etc.
71 NONPRIMITIVES, // Non-primitive types, e.g. Set, Map, List, etc.
73 STRUCT, // Struct type
74 USERDEFINED // Assumed as driver classes
81 public IoTCompiler() {
83 mapIntfacePTH = new HashMap<String,ParseTreeHandler>();
84 mapIntDeclHand = new HashMap<String,DeclarationHandler>();
85 mapInt2NewInts = new HashMap<String,Map<String,Set<String>>>();
86 mapIntfaceObjId = new HashMap<String,Integer>();
87 mapNewIntfaceObjId = new HashMap<String,Integer>();
88 mapPrimitives = new HashMap<String,String>();
89 arraysToMap(mapPrimitives, IoTRMITypes.primitivesJava, IoTRMITypes.primitivesCplus);
90 mapNonPrimitivesJava = new HashMap<String,String>();
91 arraysToMap(mapNonPrimitivesJava, IoTRMITypes.nonPrimitivesJava, IoTRMITypes.nonPrimitiveJavaLibs);
92 mapNonPrimitivesCplus = new HashMap<String,String>();
93 arraysToMap(mapNonPrimitivesCplus, IoTRMITypes.nonPrimitivesJava, IoTRMITypes.nonPrimitivesCplus);
95 dir = OUTPUT_DIRECTORY;
101 * setDataStructures() sets parse tree and other data structures based on policy files.
103 * It also generates parse tree (ParseTreeHandler) and
104 * copies useful information from parse tree into
105 * InterfaceDecl, CapabilityDecl, and RequiresDecl
107 * Additionally, the data structure handles are
108 * returned from tree-parsing for further process.
110 public void setDataStructures(String origInt, ParseNode pnPol, ParseNode pnReq) {
112 ParseTreeHandler ptHandler = new ParseTreeHandler(origInt, pnPol, pnReq);
113 DeclarationHandler decHandler = new DeclarationHandler();
114 // Process ParseNode and generate Declaration objects
116 ptHandler.processInterfaceDecl();
117 InterfaceDecl intDecl = ptHandler.getInterfaceDecl();
118 decHandler.addInterfaceDecl(origInt, intDecl);
120 ptHandler.processCapabilityDecl();
121 CapabilityDecl capDecl = ptHandler.getCapabilityDecl();
122 decHandler.addCapabilityDecl(origInt, capDecl);
124 ptHandler.processRequiresDecl();
125 RequiresDecl reqDecl = ptHandler.getRequiresDecl();
126 decHandler.addRequiresDecl(origInt, reqDecl);
128 ptHandler.processEnumDecl();
129 EnumDecl enumDecl = ptHandler.getEnumDecl();
130 decHandler.addEnumDecl(origInt, enumDecl);
132 ptHandler.processStructDecl();
133 StructDecl structDecl = ptHandler.getStructDecl();
134 decHandler.addStructDecl(origInt, structDecl);
136 mapIntfacePTH.put(origInt, ptHandler);
137 mapIntDeclHand.put(origInt, decHandler);
138 // Set object Id counter to 0 for each interface
139 mapIntfaceObjId.put(origInt, new Integer(0));
144 * getMethodsForIntface() reads for methods in the data structure
146 * It is going to give list of methods for a certain interface
147 * based on the declaration of capabilities.
149 public void getMethodsForIntface(String origInt) {
151 ParseTreeHandler ptHandler = mapIntfacePTH.get(origInt);
152 Map<String,Set<String>> mapNewIntMethods = new HashMap<String,Set<String>>();
153 // Get set of new interfaces, e.g. CameraWithCaptureAndData
154 // Generate this new interface with all the methods it needs
155 // from different capabilities it declares
156 DeclarationHandler decHandler = mapIntDeclHand.get(origInt);
157 RequiresDecl reqDecl = (RequiresDecl) decHandler.getRequiresDecl(origInt);
158 Set<String> setIntfaces = reqDecl.getInterfaces();
159 for (String strInt : setIntfaces) {
161 // Initialize a set of methods
162 Set<String> setMethods = new HashSet<String>();
163 // Get list of capabilities, e.g. ImageCapture, VideoRecording, etc.
164 List<String> listCapab = reqDecl.getCapabList(strInt);
165 for (String strCap : listCapab) {
167 // Get list of methods for each capability
168 CapabilityDecl capDecl = (CapabilityDecl) decHandler.getCapabilityDecl(origInt);
169 List<String> listCapabMeth = capDecl.getMethods(strCap);
170 for (String strMeth : listCapabMeth) {
172 // Add methods into setMethods
173 // This is to also handle redundancies (say two capabilities
174 // share the same methods)
175 setMethods.add(strMeth);
178 // Add interface and methods information into map
179 mapNewIntMethods.put(strInt, setMethods);
181 // Map the map of interface-methods to the original interface
182 mapInt2NewInts.put(origInt, mapNewIntMethods);
187 * HELPER: writeMethodJavaLocalInterface() writes the method of the local interface
189 private void writeMethodJavaLocalInterface(Collection<String> methods, InterfaceDecl intDecl) {
191 for (String method : methods) {
193 List<String> methParams = intDecl.getMethodParams(method);
194 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
195 print("public " + intDecl.getMethodType(method) + " " +
196 intDecl.getMethodId(method) + "(");
197 for (int i = 0; i < methParams.size(); i++) {
198 // Check for params with driver class types and exchange it
199 // with its remote interface
200 String paramType = checkAndGetParamClass(methPrmTypes.get(i));
201 print(paramType + " " + methParams.get(i));
202 // Check if this is the last element (don't print a comma)
203 if (i != methParams.size() - 1) {
213 * HELPER: writeMethodJavaInterface() writes the method of the interface
215 private void writeMethodJavaInterface(Collection<String> methods, InterfaceDecl intDecl) {
217 for (String method : methods) {
219 List<String> methParams = intDecl.getMethodParams(method);
220 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
221 print("public " + intDecl.getMethodType(method) + " " +
222 intDecl.getMethodId(method) + "(");
223 for (int i = 0; i < methParams.size(); i++) {
224 // Check for params with driver class types and exchange it
225 // with its remote interface
226 String paramType = methPrmTypes.get(i);
227 print(paramType + " " + methParams.get(i));
228 // Check if this is the last element (don't print a comma)
229 if (i != methParams.size() - 1) {
239 * HELPER: generateEnumJava() writes the enumeration declaration
241 private void generateEnumJava() throws IOException {
243 // Create a new directory
244 createDirectory(dir);
245 for (String intface : mapIntfacePTH.keySet()) {
246 // Get the right EnumDecl
247 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
248 EnumDecl enumDecl = (EnumDecl) decHandler.getEnumDecl(intface);
249 Set<String> enumTypes = enumDecl.getEnumDeclarations();
250 // Iterate over enum declarations
251 for (String enType : enumTypes) {
252 // Open a new file to write into
253 FileWriter fw = new FileWriter(dir + "/" + enType + ".java");
254 pw = new PrintWriter(new BufferedWriter(fw));
255 println("public enum " + enType + " {");
256 List<String> enumMembers = enumDecl.getMembers(enType);
257 for (int i = 0; i < enumMembers.size(); i++) {
259 String member = enumMembers.get(i);
261 // Check if this is the last element (don't print a comma)
262 if (i != enumMembers.size() - 1)
269 System.out.println("IoTCompiler: Generated enum class " + enType + ".java...");
276 * HELPER: generateStructJava() writes the struct declaration
278 private void generateStructJava() throws IOException {
280 // Create a new directory
281 createDirectory(dir);
282 for (String intface : mapIntfacePTH.keySet()) {
283 // Get the right StructDecl
284 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
285 StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface);
286 List<String> structTypes = structDecl.getStructTypes();
287 // Iterate over enum declarations
288 for (String stType : structTypes) {
289 // Open a new file to write into
290 FileWriter fw = new FileWriter(dir + "/" + stType + ".java");
291 pw = new PrintWriter(new BufferedWriter(fw));
292 println("public class " + stType + " {");
293 List<String> structMemberTypes = structDecl.getMemberTypes(stType);
294 List<String> structMembers = structDecl.getMembers(stType);
295 for (int i = 0; i < structMembers.size(); i++) {
297 String memberType = structMemberTypes.get(i);
298 String member = structMembers.get(i);
299 println("public static " + memberType + " " + member + ";");
303 System.out.println("IoTCompiler: Generated struct class " + stType + ".java...");
310 * generateJavaLocalInterface() writes the local interface and provides type-checking.
312 * It needs to rewrite and exchange USERDEFINED types in input parameters of stub
313 * and original interfaces, e.g. exchange Camera and CameraWithVideoAndRecording.
314 * The local interface has to be the input parameter for the stub and the stub
315 * interface has to be the input parameter for the local class.
317 public void generateJavaLocalInterfaces() throws IOException {
319 // Create a new directory
320 createDirectory(dir);
321 for (String intface : mapIntfacePTH.keySet()) {
322 // Open a new file to write into
323 FileWriter fw = new FileWriter(dir + "/" + intface + ".java");
324 pw = new PrintWriter(new BufferedWriter(fw));
325 // Pass in set of methods and get import classes
326 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
327 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
328 List<String> methods = intDecl.getMethods();
329 Set<String> importClasses = getImportClasses(methods, intDecl);
330 List<String> stdImportClasses = getStandardJavaIntfaceImportClasses();
331 List<String> allImportClasses = getAllLibClasses(stdImportClasses, importClasses);
332 printImportStatements(allImportClasses);
333 // Write interface header
335 println("public interface " + intface + " {");
337 writeMethodJavaLocalInterface(methods, intDecl);
340 System.out.println("IoTCompiler: Generated local interface " + intface + ".java...");
346 * generateJavaInterfaces() generate stub interfaces based on the methods list in Java
348 public void generateJavaInterfaces() throws IOException {
350 // Create a new directory
351 String path = createDirectories(dir, subdir);
352 for (String intface : mapIntfacePTH.keySet()) {
354 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
355 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
357 // Open a new file to write into
358 String newIntface = intMeth.getKey();
359 FileWriter fw = new FileWriter(path + "/" + newIntface + ".java");
360 pw = new PrintWriter(new BufferedWriter(fw));
361 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
362 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
363 // Pass in set of methods and get import classes
364 List<String> methods = intDecl.getMethods();
365 Set<String> importClasses = getImportClasses(methods, intDecl);
366 List<String> stdImportClasses = getStandardJavaIntfaceImportClasses();
367 List<String> allImportClasses = getAllLibClasses(stdImportClasses, importClasses);
368 printImportStatements(allImportClasses);
369 // Write interface header
371 println("public interface " + newIntface + " {\n");
373 writeMethodJavaInterface(methods, intDecl);
376 System.out.println("IoTCompiler: Generated interface " + newIntface + ".java...");
383 * HELPER: writePropertiesJavaPermission() writes the permission in properties
385 private void writePropertiesJavaPermission(String intface, InterfaceDecl intDecl) {
387 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
388 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
389 String newIntface = intMeth.getKey();
390 int newObjectId = getNewIntfaceObjectId(newIntface);
391 println("private final static int object" + newObjectId + "Id = " +
392 newObjectId + ";\t//" + newIntface);
393 Set<String> methodIds = intMeth.getValue();
394 print("private static Integer[] object" + newObjectId + "Permission = { ");
396 for (String methodId : methodIds) {
397 int methodNumId = intDecl.getMethodNumId(methodId);
398 print(Integer.toString(methodNumId));
399 // Check if this is the last element (don't print a comma)
400 if (i != methodIds.size() - 1) {
406 println("private static List<Integer> set" + newObjectId + "Allowed;");
412 * HELPER: writePropertiesJavaStub() writes the properties of the stub class
414 private void writePropertiesJavaStub(String intface, String newIntface, boolean callbackExist, Set<String> callbackClasses) {
416 println("private IoTRMICall rmiCall;");
417 println("private String address;");
418 println("private int[] ports;\n");
420 Integer objId = mapIntfaceObjId.get(intface);
421 println("private final static int objectId = " + objId + ";");
422 mapNewIntfaceObjId.put(newIntface, objId);
423 mapIntfaceObjId.put(intface, objId++);
425 // We assume that each class only has one callback interface for now
426 Iterator it = callbackClasses.iterator();
427 String callbackType = (String) it.next();
428 println("// Callback properties");
429 println("private IoTRMIObject rmiObj;");
430 println("List<" + callbackType + "> listCallbackObj;");
431 println("private static int objIdCnt = 0;");
432 // Generate permission stuff for callback stubs
433 DeclarationHandler decHandler = mapIntDeclHand.get(callbackType);
434 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(callbackType);
435 writePropertiesJavaPermission(callbackType, intDecl);
442 * HELPER: writeConstructorJavaPermission() writes the permission in constructor
444 private void writeConstructorJavaPermission(String intface) {
446 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
447 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
448 String newIntface = intMeth.getKey();
449 int newObjectId = getNewIntfaceObjectId(newIntface);
450 println("set" + newObjectId + "Allowed = new ArrayList<Integer>(Arrays.asList(object" + newObjectId +"Permission));");
456 * HELPER: writeConstructorJavaStub() writes the constructor of the stub class
458 private void writeConstructorJavaStub(String intface, String newStubClass, boolean callbackExist, Set<String> callbackClasses) {
460 println("public " + newStubClass + "(int _port, String _address, int _rev, int[] _ports) throws Exception {");
461 println("address = _address;");
462 println("ports = _ports;");
463 println("rmiCall = new IoTRMICall(_port, _address, _rev);");
465 Iterator it = callbackClasses.iterator();
466 String callbackType = (String) it.next();
467 writeConstructorJavaPermission(intface);
468 println("listCallbackObj = new ArrayList<" + callbackType + ">();");
469 println("___initCallBack();");
476 * HELPER: writeJavaMethodCallbackPermission() writes permission checks in stub for callbacks
478 private void writeJavaMethodCallbackPermission(String intface) {
480 println("int methodId = IoTRMIObject.getMethodId(method);");
481 // Get all the different stubs
482 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
483 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
484 String newIntface = intMeth.getKey();
485 int newObjectId = getNewIntfaceObjectId(newIntface);
486 println("if (!set" + newObjectId + "Allowed.contains(methodId)) {");
487 println("throw new Error(\"Callback object for " + intface + " is not allowed to access method: \" + methodId);");
494 * HELPER: writeJavaInitCallbackPermission() writes the permission for callback
496 private void writeJavaInitCallbackPermission(String intface, InterfaceDecl intDecl, boolean callbackExist) {
499 String method = "___initCallBack()";
500 int methodNumId = intDecl.getHelperMethodNumId(method);
501 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
502 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
503 String newIntface = intMeth.getKey();
504 int newObjectId = getNewIntfaceObjectId(newIntface);
505 println("set" + newObjectId + "Allowed.add(" + methodNumId + ");");
512 * HELPER: writeInitCallbackJavaStub() writes callback initialization in stub
514 private void writeInitCallbackJavaStub(String intface, InterfaceDecl intDecl) {
516 println("public void ___initCallBack() {");
517 // Generate main thread for callbacks
518 println("Thread thread = new Thread() {");
519 println("public void run() {");
521 println("rmiObj = new IoTRMIObject(ports[0]);");
522 println("while (true) {");
523 println("byte[] method = rmiObj.getMethodBytes();");
524 writeJavaMethodCallbackPermission(intface);
525 println("int objId = IoTRMIObject.getObjectId(method);");
526 println(intface + "_CallbackSkeleton skel = (" + intface + "_CallbackSkeleton) listCallbackObj.get(objId);");
527 println("if (skel != null) {");
528 println("skel.invokeMethod(rmiObj);");
531 println("throw new Error(\"" + intface + ": Object with Id \" + objId + \" not found!\");");
535 println(" catch (Exception ex) {");
536 println("ex.printStackTrace();");
537 println("throw new Error(\"Error instantiating class " + intface + "_CallbackSkeleton!\");");
541 println("thread.start();\n");
542 // Generate info sending part
543 String method = "___initCallBack()";
544 int methodNumId = intDecl.getHelperMethodNumId(method);
545 println("int methodId = " + methodNumId + ";");
546 println("Class<?> retType = void.class;");
547 println("Class<?>[] paramCls = new Class<?>[] { int.class, String.class, int.class };");
548 println("Object[] paramObj = new Object[] { ports[0], address, 0 };");
549 println("rmiCall.remoteCall(objectId, methodId, retType, null, paramCls, paramObj);");
555 * HELPER: checkAndWriteEnumTypeJavaStub() writes the enum type (convert from enum to int)
557 private void checkAndWriteEnumTypeJavaStub(List<String> methParams, List<String> methPrmTypes) {
559 // Iterate and find enum declarations
560 for (int i = 0; i < methParams.size(); i++) {
561 String paramType = methPrmTypes.get(i);
562 String param = methParams.get(i);
563 String simpleType = getGenericType(paramType);
564 if (isEnumClass(simpleType)) {
565 // Check if this is enum type
566 if (isArray(param)) { // An array
567 println("int len" + i + " = " + getSimpleIdentifier(param) + ".length;");
568 println("int paramEnum" + i + "[] = new int[len" + i + "];");
569 println("for (int i = 0; i < len" + i + "; i++) {");
570 println("paramEnum" + i + "[i] = " + getSimpleIdentifier(param) + "[i].ordinal();");
572 } else if (isList(paramType)) { // A list
573 println("int len" + i + " = " + getSimpleIdentifier(param) + ".size();");
574 println("int paramEnum" + i + "[] = new int[len" + i + "];");
575 println("for (int i = 0; i < len" + i + "; i++) {");
576 println("paramEnum" + i + "[i] = " + getSimpleIdentifier(param) + ".get(i).ordinal();");
578 } else { // Just one element
579 println("int paramEnum" + i + "[] = new int[1];");
580 println("paramEnum" + i + "[0] = " + param + ".ordinal();");
588 * HELPER: checkAndWriteEnumRetTypeJavaStub() writes the enum return type (convert from enum to int)
590 private void checkAndWriteEnumRetTypeJavaStub(String retType) {
592 // Strips off array "[]" for return type
593 String pureType = getSimpleArrayType(getGenericType(retType));
594 // Take the inner type of generic
595 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
596 pureType = getGenericType(retType);
597 if (isEnumClass(pureType)) {
598 // Check if this is enum type
600 println("int[] retEnum = (int[]) retObj;");
601 println(pureType + "[] enumVals = " + pureType + ".values();");
602 if (isArray(retType)) { // An array
603 println("int retLen = retEnum.length;");
604 println(pureType + "[] enumRetVal = new " + pureType + "[retLen];");
605 println("for (int i = 0; i < retLen; i++) {");
606 println("enumRetVal[i] = enumVals[retEnum[i]];");
608 } else if (isList(retType)) { // A list
609 println("int retLen = retEnum.length;");
610 println("List<" + pureType + "> enumRetVal = new ArrayList<" + pureType + ">();");
611 println("for (int i = 0; i < retLen; i++) {");
612 println("enumRetVal.add(enumVals[retEnum[i]]);");
614 } else { // Just one element
615 println(pureType + " enumRetVal = enumVals[retEnum[0]];");
617 println("return enumRetVal;");
623 * HELPER: checkAndWriteStructSetupJavaStub() writes the struct type setup
625 private void checkAndWriteStructSetupJavaStub(List<String> methParams, List<String> methPrmTypes,
626 InterfaceDecl intDecl, String method) {
628 // Iterate and find struct declarations
629 for (int i = 0; i < methParams.size(); i++) {
630 String paramType = methPrmTypes.get(i);
631 String param = methParams.get(i);
632 String simpleType = getGenericType(paramType);
633 if (isStructClass(simpleType)) {
634 // Check if this is enum type
635 int methodNumId = intDecl.getMethodNumId(method);
636 String helperMethod = methodNumId + "struct" + i;
637 println("int methodIdStruct" + i + " = " + intDecl.getHelperMethodNumId(helperMethod) + ";");
638 println("Class<?> retTypeStruct" + i + " = void.class;");
639 println("Class<?>[] paramClsStruct" + i + " = new Class<?>[] { int.class };");
640 if (isArray(param)) { // An array
641 println("Object[] paramObjStruct" + i + " = new Object[] { " + getSimpleArrayType(param) + ".length };");
642 } else if (isList(paramType)) { // A list
643 println("Object[] paramObjStruct" + i + " = new Object[] { " + getSimpleArrayType(param) + ".size() };");
644 } else { // Just one element
645 println("Object[] paramObjStruct" + i + " = new Object[] { new Integer(1) };");
647 println("rmiCall.remoteCall(objectId, methodIdStruct" + i +
648 ", retTypeStruct" + i + ", null, paramClsStruct" + i +
649 ", paramObjStruct" + i + ");\n");
656 * HELPER: isStructPresent() checks presence of struct
658 private boolean isStructPresent(List<String> methParams, List<String> methPrmTypes) {
660 // Iterate and find enum declarations
661 for (int i = 0; i < methParams.size(); i++) {
662 String paramType = methPrmTypes.get(i);
663 String param = methParams.get(i);
664 String simpleType = getGenericType(paramType);
665 if (isStructClass(simpleType))
673 * HELPER: writeLengthStructParamClassJavaStub() writes lengths of parameters
675 private void writeLengthStructParamClassJavaStub(List<String> methParams, List<String> methPrmTypes) {
677 // Iterate and find struct declarations - count number of params
678 for (int i = 0; i < methParams.size(); i++) {
679 String paramType = methPrmTypes.get(i);
680 String param = methParams.get(i);
681 String simpleType = getGenericType(paramType);
682 if (isStructClass(simpleType)) {
683 int members = getNumOfMembers(simpleType);
684 if (isArray(param)) { // An array
685 String structLen = getSimpleArrayType(param) + ".length";
686 print(members + "*" + structLen);
687 } else if (isList(paramType)) { // A list
688 String structLen = getSimpleArrayType(param) + ".size()";
689 print(members + "*" + structLen);
691 print(Integer.toString(members));
694 if (i != methParams.size() - 1) {
702 * HELPER: writeStructMembersJavaStub() writes parameters of struct
704 private void writeStructMembersJavaStub(String simpleType, String paramType, String param) {
706 // Get the struct declaration for this struct and generate initialization code
707 StructDecl structDecl = getStructDecl(simpleType);
708 List<String> memTypes = structDecl.getMemberTypes(simpleType);
709 List<String> members = structDecl.getMembers(simpleType);
710 if (isArray(param)) { // An array
711 println("for(int i = 0; i < " + getSimpleIdentifier(param) + ".length; i++) {");
712 for (int i = 0; i < members.size(); i++) {
713 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
714 println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
715 print("paramObj[pos++] = " + getSimpleIdentifier(param) + "[i].");
716 print(getSimpleIdentifier(members.get(i)));
720 } else if (isList(paramType)) { // A list
721 println("for(int i = 0; i < " + getSimpleIdentifier(param) + ".size(); i++) {");
722 for (int i = 0; i < members.size(); i++) {
723 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
724 println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
725 print("paramObj[pos++] = " + getSimpleIdentifier(param) + ".get(i).");
726 print(getSimpleIdentifier(members.get(i)));
730 } else { // Just one struct element
731 for (int i = 0; i < members.size(); i++) {
732 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
733 println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
734 print("paramObj[pos++] = " + getSimpleIdentifier(param) + ".");
735 print(getSimpleIdentifier(members.get(i)));
743 * HELPER: writeStructParamClassJavaStub() writes parameters if struct is present
745 private void writeStructParamClassJavaStub(List<String> methParams, List<String> methPrmTypes) {
747 print("int paramLen = ");
748 writeLengthStructParamClassJavaStub(methParams, methPrmTypes);
750 println("Object[] paramObj = new Object[paramLen];");
751 println("Class<?>[] paramCls = new Class<?>[paramLen];");
752 println("int pos = 0;");
753 // Iterate again over the parameters
754 for (int i = 0; i < methParams.size(); i++) {
755 String paramType = methPrmTypes.get(i);
756 String param = methParams.get(i);
757 String simpleType = getGenericType(paramType);
758 if (isStructClass(simpleType)) {
759 writeStructMembersJavaStub(simpleType, paramType, param);
761 String prmType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i));
762 println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
763 print("paramObj[pos++] = ");
764 print(getEnumParam(methPrmTypes.get(i), getSimpleIdentifier(methParams.get(i)), i));
773 * HELPER: writeStructRetMembersJavaStub() writes parameters of struct for return statement
775 private void writeStructRetMembersJavaStub(String simpleType, String retType) {
777 // Get the struct declaration for this struct and generate initialization code
778 StructDecl structDecl = getStructDecl(simpleType);
779 List<String> memTypes = structDecl.getMemberTypes(simpleType);
780 List<String> members = structDecl.getMembers(simpleType);
781 if (isArrayOrList(retType, retType)) { // An array or list
782 println("for(int i = 0; i < retLen; i++) {");
784 if (isArray(retType)) { // An array
785 for (int i = 0; i < members.size(); i++) {
786 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
787 print("structRet[i]." + getSimpleIdentifier(members.get(i)));
788 println(" = (" + getSimpleType(getEnumType(prmType)) + ") retObj[retObjPos++];");
791 } else if (isList(retType)) { // A list
792 println(simpleType + " structRetMem = new " + simpleType + "();");
793 for (int i = 0; i < members.size(); i++) {
794 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
795 print("structRetMem." + getSimpleIdentifier(members.get(i)));
796 println(" = (" + getSimpleType(getEnumType(prmType)) + ") retObj[retObjPos++];");
798 println("structRet.add(structRetMem);");
800 } else { // Just one struct element
801 for (int i = 0; i < members.size(); i++) {
802 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
803 print("structRet." + getSimpleIdentifier(members.get(i)));
804 println(" = (" + getSimpleType(getEnumType(prmType)) + ") retObj[retObjPos++];");
807 println("return structRet;");
812 * HELPER: writeStructReturnJavaStub() writes parameters if struct is present for return statement
814 private void writeStructReturnJavaStub(String simpleType, String retType) {
816 // Handle the returned struct!!!
817 println("Object retLenObj = rmiCall.remoteCall(objectId, methodId, retType, null, paramCls, paramObj);");
818 // Minimum retLen is 1 if this is a single struct object
819 println("int retLen = (int) retLenObj;");
820 int numMem = getNumOfMembers(simpleType);
821 println("Class<?>[] retCls = new Class<?>[" + numMem + "*retLen];");
822 println("Class<?>[] retClsVal = new Class<?>[" + numMem + "*retLen];");
823 println("int retPos = 0;");
824 // Get the struct declaration for this struct and generate initialization code
825 StructDecl structDecl = getStructDecl(simpleType);
826 List<String> memTypes = structDecl.getMemberTypes(simpleType);
827 List<String> members = structDecl.getMembers(simpleType);
828 if (isArrayOrList(retType, retType)) { // An array or list
829 println("for(int i = 0; i < retLen; i++) {");
830 for (int i = 0; i < members.size(); i++) {
831 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
832 println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
833 println("retClsVal[retPos++] = null;");
836 } else { // Just one struct element
837 for (int i = 0; i < members.size(); i++) {
838 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
839 println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
840 println("retClsVal[retPos++] = null;");
843 println("Object[] retObj = rmiCall.getStructObjects(retCls, retClsVal);");
844 if (isArray(retType)) { // An array
845 println(simpleType + "[] structRet = new " + simpleType + "[retLen];");
846 println("for(int i = 0; i < retLen; i++) {");
847 println("structRet[i] = new " + simpleType + "();");
849 } else if (isList(retType)) { // A list
850 println("List<" + simpleType + "> structRet = new ArrayList<" + simpleType + ">();");
852 println(simpleType + " structRet = new " + simpleType + "();");
853 println("int retObjPos = 0;");
854 writeStructRetMembersJavaStub(simpleType, retType);
859 * HELPER: writeStdMethodBodyJavaStub() writes the standard method body in the stub class
861 private void writeStdMethodBodyJavaStub(InterfaceDecl intDecl, List<String> methParams,
862 List<String> methPrmTypes, String method) {
864 checkAndWriteStructSetupJavaStub(methParams, methPrmTypes, intDecl, method);
865 println("int methodId = " + intDecl.getMethodNumId(method) + ";");
866 String retType = intDecl.getMethodType(method);
867 println("Class<?> retType = " + getSimpleType(getStructType(getEnumType(retType))) + ".class;");
868 checkAndWriteEnumTypeJavaStub(methParams, methPrmTypes);
869 // Generate array of parameter types
870 if (isStructPresent(methParams, methPrmTypes)) {
871 writeStructParamClassJavaStub(methParams, methPrmTypes);
873 print("Class<?>[] paramCls = new Class<?>[] { ");
874 for (int i = 0; i < methParams.size(); i++) {
875 String paramType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i));
876 print(getSimpleType(getEnumType(paramType)) + ".class");
877 // Check if this is the last element (don't print a comma)
878 if (i != methParams.size() - 1) {
883 // Generate array of parameter objects
884 print("Object[] paramObj = new Object[] { ");
885 for (int i = 0; i < methParams.size(); i++) {
886 print(getEnumParam(methPrmTypes.get(i), getSimpleIdentifier(methParams.get(i)), i));
887 // Check if this is the last element (don't print a comma)
888 if (i != methParams.size() - 1) {
894 // Check if this is "void"
895 if (retType.equals("void")) {
896 println("rmiCall.remoteCall(objectId, methodId, retType, null, paramCls, paramObj);");
897 } else { // We do have a return value
898 // Generate array of parameter types
899 if (isStructClass(getGenericType(getSimpleArrayType(retType)))) {
900 writeStructReturnJavaStub(getGenericType(getSimpleArrayType(retType)), retType);
902 // This is an enum type
903 if (getParamCategory(getGenericType(getSimpleArrayType(retType))) == ParamCategory.ENUM) {
904 println("Object retObj = rmiCall.remoteCall(objectId, methodId, retType, null, paramCls, paramObj);");
905 checkAndWriteEnumRetTypeJavaStub(retType);
906 } else if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES) {
907 // Check if the return value NONPRIMITIVES
908 String retGenValType = getGenericType(retType);
909 println("Class<?> retGenValType = " + retGenValType + ".class;");
910 println("Object retObj = rmiCall.remoteCall(objectId, methodId, retType, retGenValType, paramCls, paramObj);");
911 println("return (" + retType + ")retObj;");
913 println("Object retObj = rmiCall.remoteCall(objectId, methodId, retType, null, paramCls, paramObj);");
914 println("return (" + retType + ")retObj;");
922 * HELPER: returnGenericCallbackType() returns the callback type
924 private String returnGenericCallbackType(String paramType) {
926 if (getParamCategory(paramType) == ParamCategory.NONPRIMITIVES)
927 return getGenericType(paramType);
934 * HELPER: checkCallbackType() checks the callback type
936 private boolean checkCallbackType(String paramType, String callbackType) {
938 String prmType = returnGenericCallbackType(paramType);
939 return callbackType.equals(prmType);
944 * HELPER: writeCallbackMethodBodyJavaStub() writes the callback method of the stub class
946 private void writeCallbackMethodBodyJavaStub(InterfaceDecl intDecl, List<String> methParams,
947 List<String> methPrmTypes, String method, String callbackType) {
950 // Check if this is single object, array, or list of objects
951 for (int i = 0; i < methParams.size(); i++) {
952 String paramType = methPrmTypes.get(i);
953 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
954 String param = methParams.get(i);
955 if (isArrayOrList(paramType, param)) { // Generate loop
956 println("for (" + getGenericType(paramType) + " cb : " + getSimpleIdentifier(param) + ") {");
957 println(callbackType + "_CallbackSkeleton skel" + i + " = new " + callbackType + "_CallbackSkeleton(cb, objIdCnt++);");
959 println(callbackType + "_CallbackSkeleton skel" + i + " = new " + callbackType + "_CallbackSkeleton(" +
960 getSimpleIdentifier(param) + ", objIdCnt++);");
961 println("listCallbackObj.add(skel" + i + ");");
962 if (isArrayOrList(paramType, param))
967 println(" catch (Exception ex) {");
968 println("ex.printStackTrace();");
969 println("throw new Error(\"Exception when generating skeleton objects!\");");
971 println("int methodId = " + intDecl.getMethodNumId(method) + ";");
972 String retType = intDecl.getMethodType(method);
973 println("Class<?> retType = " + getSimpleType(getEnumType(retType)) + ".class;");
974 // Generate array of parameter types
975 print("Class<?>[] paramCls = new Class<?>[] { ");
976 for (int i = 0; i < methParams.size(); i++) {
977 String paramType = methPrmTypes.get(i);
978 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
980 } else { // Generate normal classes if it's not a callback object
981 String prmType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i));
982 print(getSimpleType(prmType) + ".class");
984 if (i != methParams.size() - 1) // Check if this is the last element
988 // Generate array of parameter objects
989 print("Object[] paramObj = new Object[] { ");
990 for (int i = 0; i < methParams.size(); i++) {
991 String paramType = methPrmTypes.get(i);
992 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
993 //if (isArray(methPrmTypes.get(i), methParams.get(i)))
994 if (isArray(methParams.get(i)))
995 print(getSimpleIdentifier(methParams.get(i)) + ".length");
996 else if (isList(methPrmTypes.get(i)))
997 print(getSimpleIdentifier(methParams.get(i)) + ".size()");
999 print("new Integer(1)");
1001 print(getSimpleIdentifier(methParams.get(i)));
1002 if (i != methParams.size() - 1)
1006 // Check if this is "void"
1007 if (retType.equals("void")) {
1008 println("rmiCall.remoteCall(objectId, methodId, retType, null, paramCls, paramObj);");
1009 } else { // We do have a return value
1010 // Check if the return value NONPRIMITIVES
1011 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES) {
1012 String[] retGenValType = getTypeOfGeneric(retType);
1013 println("Class<?> retGenValType = " + retGenValType[0] + ".class;");
1014 println("Object retObj = rmiCall.remoteCall(objectId, methodId, retType, retGenValType, paramCls, paramObj);");
1015 println("return (" + retType + ")retObj;");
1017 println("Object retObj = rmiCall.remoteCall(objectId, methodId, retType, null, paramCls, paramObj);");
1018 println("return (" + retType + ")retObj;");
1025 * HELPER: writeMethodJavaStub() writes the methods of the stub class
1027 private void writeMethodJavaStub(Collection<String> methods, InterfaceDecl intDecl, Set<String> callbackClasses) {
1029 boolean isDefined = false;
1030 for (String method : methods) {
1032 List<String> methParams = intDecl.getMethodParams(method);
1033 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1034 print("public " + intDecl.getMethodType(method) + " " +
1035 intDecl.getMethodId(method) + "(");
1036 boolean isCallbackMethod = false;
1037 String callbackType = null;
1038 for (int i = 0; i < methParams.size(); i++) {
1040 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
1041 // Check if this has callback object
1042 if (callbackClasses.contains(paramType)) {
1043 isCallbackMethod = true;
1044 callbackType = paramType;
1045 // Even if there're 2 callback arguments, we expect them to be of the same interface
1047 print(methPrmTypes.get(i) + " " + methParams.get(i));
1048 // Check if this is the last element (don't print a comma)
1049 if (i != methParams.size() - 1) {
1054 // Now, write the body of stub!
1055 if (isCallbackMethod)
1056 writeCallbackMethodBodyJavaStub(intDecl, methParams, methPrmTypes, method, callbackType);
1058 writeStdMethodBodyJavaStub(intDecl, methParams, methPrmTypes, method);
1060 // Write the init callback helper method
1061 if (isCallbackMethod && !isDefined) {
1062 writeInitCallbackJavaStub(callbackType, intDecl);
1070 * generateJavaStubClasses() generate stubs based on the methods list in Java
1072 public void generateJavaStubClasses() throws IOException {
1074 // Create a new directory
1075 String path = createDirectories(dir, subdir);
1076 for (String intface : mapIntfacePTH.keySet()) {
1078 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
1079 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
1081 // Open a new file to write into
1082 String newIntface = intMeth.getKey();
1083 String newStubClass = newIntface + "_Stub";
1084 FileWriter fw = new FileWriter(path + "/" + newStubClass + ".java");
1085 pw = new PrintWriter(new BufferedWriter(fw));
1086 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
1087 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
1088 // Pass in set of methods and get import classes
1089 Set<String> methods = intMeth.getValue();
1090 Set<String> importClasses = getImportClasses(methods, intDecl);
1091 List<String> stdImportClasses = getStandardJavaImportClasses();
1092 List<String> allImportClasses = getAllLibClasses(stdImportClasses, importClasses);
1093 printImportStatements(allImportClasses); println("");
1094 // Find out if there are callback objects
1095 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
1096 boolean callbackExist = !callbackClasses.isEmpty();
1097 // Write class header
1098 println("public class " + newStubClass + " implements " + newIntface + " {\n");
1100 writePropertiesJavaStub(intface, newIntface, callbackExist, callbackClasses);
1101 // Write constructor
1102 writeConstructorJavaStub(intface, newStubClass, callbackExist, callbackClasses);
1104 writeMethodJavaStub(intMeth.getValue(), intDecl, callbackClasses);
1107 System.out.println("IoTCompiler: Generated stub class " + newStubClass + ".java...");
1114 * HELPER: writePropertiesJavaCallbackStub() writes the properties of the callback stub class
1116 private void writePropertiesJavaCallbackStub(String intface, String newIntface, boolean callbackExist, Set<String> callbackClasses) {
1118 println("private IoTRMICall rmiCall;");
1119 println("private String address;");
1120 println("private int[] ports;\n");
1121 // Get the object Id
1122 println("private static int objectId = 0;");
1123 if (callbackExist) {
1124 // We assume that each class only has one callback interface for now
1125 Iterator it = callbackClasses.iterator();
1126 String callbackType = (String) it.next();
1127 println("// Callback properties");
1128 println("private IoTRMIObject rmiObj;");
1129 println("List<" + callbackType + "> listCallbackObj;");
1130 println("private static int objIdCnt = 0;");
1131 // Generate permission stuff for callback stubs
1132 DeclarationHandler decHandler = mapIntDeclHand.get(callbackType);
1133 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(callbackType);
1134 writePropertiesJavaPermission(callbackType, intDecl);
1141 * HELPER: writeConstructorJavaCallbackStub() writes the constructor of the callback stub class
1143 private void writeConstructorJavaCallbackStub(String intface, String newStubClass, boolean callbackExist, Set<String> callbackClasses) {
1145 // TODO: If we want callback in callback, then we need to add address and port initializations
1146 println("public " + newStubClass + "(IoTRMICall _rmiCall, int _objectId) throws Exception {");
1147 println("objectId = _objectId;");
1148 println("rmiCall = _rmiCall;");
1149 if (callbackExist) {
1150 Iterator it = callbackClasses.iterator();
1151 String callbackType = (String) it.next();
1152 writeConstructorJavaPermission(intface);
1153 println("listCallbackObj = new ArrayList<" + callbackType + ">();");
1154 println("___initCallBack();");
1155 println("// TODO: Add address and port initialization here if we want callback in callback!");
1162 * generateJavaCallbackStubClasses() generate callback stubs based on the methods list in Java
1164 * Callback stubs gets the IoTRMICall objects from outside of the class as contructor input
1165 * because all these stubs are populated by the class that takes in this object as a callback
1166 * object. In such a class, we only use one socket, hence one IoTRMICall, for all callback objects.
1168 public void generateJavaCallbackStubClasses() throws IOException {
1170 // Create a new directory
1171 String path = createDirectories(dir, subdir);
1172 for (String intface : mapIntfacePTH.keySet()) {
1174 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
1175 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
1177 // Open a new file to write into
1178 String newIntface = intMeth.getKey();
1179 String newStubClass = newIntface + "_CallbackStub";
1180 FileWriter fw = new FileWriter(path + "/" + newStubClass + ".java");
1181 pw = new PrintWriter(new BufferedWriter(fw));
1182 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
1183 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
1184 // Pass in set of methods and get import classes
1185 Set<String> methods = intMeth.getValue();
1186 Set<String> importClasses = getImportClasses(methods, intDecl);
1187 List<String> stdImportClasses = getStandardJavaImportClasses();
1188 List<String> allImportClasses = getAllLibClasses(stdImportClasses, importClasses);
1189 printImportStatements(allImportClasses); println("");
1190 // Find out if there are callback objects
1191 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
1192 boolean callbackExist = !callbackClasses.isEmpty();
1193 // Write class header
1194 println("public class " + newStubClass + " implements " + newIntface + " {\n");
1196 writePropertiesJavaCallbackStub(intface, newIntface, callbackExist, callbackClasses);
1197 // Write constructor
1198 writeConstructorJavaCallbackStub(intface, newStubClass, callbackExist, callbackClasses);
1200 // TODO: perhaps need to generate callback for callback
1201 writeMethodJavaStub(intMeth.getValue(), intDecl, callbackClasses);
1204 System.out.println("IoTCompiler: Generated callback stub class " + newStubClass + ".java...");
1211 * HELPER: writePropertiesJavaSkeleton() writes the properties of the skeleton class
1213 private void writePropertiesJavaSkeleton(String intface, boolean callbackExist, InterfaceDecl intDecl) {
1215 println("private " + intface + " mainObj;");
1216 //println("private int ports;");
1217 println("private IoTRMIObject rmiObj;\n");
1219 if (callbackExist) {
1220 println("private static int objIdCnt = 0;");
1221 println("private IoTRMICall rmiCall;");
1223 writePropertiesJavaPermission(intface, intDecl);
1229 * HELPER: writeStructPermissionJavaSkeleton() writes permission for struct helper
1231 private void writeStructPermissionJavaSkeleton(Collection<String> methods, InterfaceDecl intDecl, String intface) {
1233 // Use this set to handle two same methodIds
1234 for (String method : methods) {
1235 List<String> methParams = intDecl.getMethodParams(method);
1236 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1237 // Check for params with structs
1238 for (int i = 0; i < methParams.size(); i++) {
1239 String paramType = methPrmTypes.get(i);
1240 String param = methParams.get(i);
1241 String simpleType = getGenericType(paramType);
1242 if (isStructClass(simpleType)) {
1243 int methodNumId = intDecl.getMethodNumId(method);
1244 String helperMethod = methodNumId + "struct" + i;
1245 int methodHelperNumId = intDecl.getHelperMethodNumId(helperMethod);
1246 // Iterate over interfaces to give permissions to
1247 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
1248 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
1249 String newIntface = intMeth.getKey();
1250 int newObjectId = getNewIntfaceObjectId(newIntface);
1251 println("set" + newObjectId + "Allowed.add(" + methodHelperNumId + ");");
1260 * HELPER: writeConstructorJavaSkeleton() writes the constructor of the skeleton class
1262 private void writeConstructorJavaSkeleton(String newSkelClass, String intface, InterfaceDecl intDecl, Collection<String> methods, boolean callbackExist) {
1264 println("public " + newSkelClass + "(" + intface + " _mainObj, int _port) throws Exception {");
1265 println("mainObj = _mainObj;");
1266 println("rmiObj = new IoTRMIObject(_port);");
1267 // Generate permission control initialization
1268 writeConstructorJavaPermission(intface);
1269 writeJavaInitCallbackPermission(intface, intDecl, callbackExist);
1270 writeStructPermissionJavaSkeleton(methods, intDecl, intface);
1271 println("___waitRequestInvokeMethod();");
1277 * HELPER: writeStdMethodBodyJavaSkeleton() writes the standard method body in the skeleton class
1279 private void writeStdMethodBodyJavaSkeleton(List<String> methParams, String methodId, String methodType) {
1281 if (methodType.equals("void"))
1282 print("mainObj." + methodId + "(");
1284 print("return mainObj." + methodId + "(");
1285 for (int i = 0; i < methParams.size(); i++) {
1287 print(getSimpleIdentifier(methParams.get(i)));
1288 // Check if this is the last element (don't print a comma)
1289 if (i != methParams.size() - 1) {
1298 * HELPER: writeInitCallbackJavaSkeleton() writes the init callback method for skeleton class
1300 private void writeInitCallbackJavaSkeleton(boolean callbackSkeleton) {
1302 // This is a callback skeleton generation
1303 if (callbackSkeleton)
1304 println("public void ___regCB(IoTRMIObject rmiObj) throws IOException {");
1306 println("public void ___regCB() throws IOException {");
1307 print("Object[] paramObj = rmiObj.getMethodParams(new Class<?>[] { int.class, String.class, int.class },");
1308 println("new Class<?>[] { null, null, null });");
1309 println("rmiCall = new IoTRMICall((int) paramObj[0], (String) paramObj[1], (int) paramObj[2]);");
1315 * HELPER: writeMethodJavaSkeleton() writes the method of the skeleton class
1317 private void writeMethodJavaSkeleton(Collection<String> methods, InterfaceDecl intDecl, Set<String> callbackClasses,
1318 boolean callbackSkeleton) {
1320 boolean isDefined = false;
1321 for (String method : methods) {
1323 List<String> methParams = intDecl.getMethodParams(method);
1324 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1325 String methodId = intDecl.getMethodId(method);
1326 print("public " + intDecl.getMethodType(method) + " " + methodId + "(");
1327 boolean isCallbackMethod = false;
1328 String callbackType = null;
1329 for (int i = 0; i < methParams.size(); i++) {
1331 String origParamType = methPrmTypes.get(i);
1332 String paramType = checkAndGetParamClass(origParamType);
1333 if (callbackClasses.contains(origParamType)) { // Check if this has callback object
1334 isCallbackMethod = true;
1335 callbackType = origParamType;
1337 print(paramType + " " + methParams.get(i));
1338 // Check if this is the last element (don't print a comma)
1339 if (i != methParams.size() - 1) {
1344 // Now, write the body of skeleton!
1345 writeStdMethodBodyJavaSkeleton(methParams, methodId, intDecl.getMethodType(method));
1347 if (isCallbackMethod && !isDefined) { // Make sure that this function is only defined once!
1348 writeInitCallbackJavaSkeleton(callbackSkeleton);
1356 * HELPER: writeCallbackJavaStubGeneration() writes the callback stub generation part
1358 private Map<Integer,String> writeCallbackJavaStubGeneration(List<String> methParams, List<String> methPrmTypes,
1359 String callbackType) {
1361 Map<Integer,String> mapStubParam = new HashMap<Integer,String>();
1362 // Iterate over callback objects
1363 for (int i = 0; i < methParams.size(); i++) {
1364 String paramType = methPrmTypes.get(i);
1365 String param = methParams.get(i);
1366 //if (callbackType.equals(paramType)) {
1367 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
1369 String exchParamType = checkAndGetParamClass(getGenericType(paramType));
1370 // Print array if this is array or list if this is a list of callback objects
1371 if (isArray(param)) {
1372 println("int numStubs" + i + " = (int) paramObj[" + i + "];");
1373 println(exchParamType + "[] stub" + i + " = new " + exchParamType + "[numStubs" + i + "];");
1374 } else if (isList(paramType)) {
1375 println("int numStubs" + i + " = (int) paramObj[" + i + "];");
1376 println("List<" + exchParamType + "> stub" + i + " = new ArrayList<" + exchParamType + ">();");
1378 println(exchParamType + " stub" + i + " = new " + exchParamType + "_CallbackStub(rmiCall, objIdCnt);");
1379 println("objIdCnt++;");
1382 // Generate a loop if needed
1383 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
1384 String exchParamType = checkAndGetParamClass(getGenericType(paramType));
1385 if (isArray(param)) {
1386 println("for (int objId = 0; objId < numStubs" + i + "; objId++) {");
1387 println("stub" + i + "[objId] = new " + exchParamType + "_CallbackStub(rmiCall, objIdCnt);");
1388 println("objIdCnt++;");
1390 } else if (isList(paramType)) {
1391 println("for (int objId = 0; objId < numStubs" + i + "; objId++) {");
1392 println("stub" + i + ".add(new " + exchParamType + "_CallbackStub(rmiCall, objIdCnt));");
1393 println("objIdCnt++;");
1396 mapStubParam.put(i, "stub" + i); // List of all stub parameters
1399 return mapStubParam;
1404 * HELPER: checkAndWriteEnumTypeJavaSkeleton() writes the enum type (convert from enum to int)
1406 private void checkAndWriteEnumTypeJavaSkeleton(List<String> methParams, List<String> methPrmTypes) {
1408 // Iterate and find enum declarations
1409 for (int i = 0; i < methParams.size(); i++) {
1410 String paramType = methPrmTypes.get(i);
1411 String param = methParams.get(i);
1412 String simpleType = getGenericType(paramType);
1413 if (isEnumClass(simpleType)) {
1414 // Check if this is enum type
1415 println("int paramInt" + i + "[] = (int[]) paramObj[" + i + "];");
1416 println(simpleType + "[] enumVals = " + simpleType + ".values();");
1417 if (isArray(param)) { // An array
1418 println("int len" + i + " = paramInt" + i + ".length;");
1419 println(simpleType + "[] paramEnum" + i + " = new " + simpleType + "[len" + i + "];");
1420 println("for (int i = 0; i < len" + i + "; i++) {");
1421 println("paramEnum" + i + "[i] = enumVals[paramInt" + i + "[i]];");
1423 } else if (isList(paramType)) { // A list
1424 println("int len" + i + " = paramInt" + i + ".length;");
1425 println("List<" + simpleType + "> paramEnum" + i + " = new ArrayList<" + simpleType + ">();");
1426 println("for (int i = 0; i < len" + i + "; i++) {");
1427 println("paramEnum" + i + ".add(enumVals[paramInt" + i + "[i]]);");
1429 } else { // Just one element
1430 println(simpleType + " paramEnum" + i + " = enumVals[paramInt" + i + "[0]];");
1438 * HELPER: checkAndWriteEnumRetTypeJavaSkeleton() writes the enum return type (convert from enum to int)
1440 private void checkAndWriteEnumRetTypeJavaSkeleton(String retType, String methodId) {
1442 // Strips off array "[]" for return type
1443 String pureType = getSimpleArrayType(getGenericType(retType));
1444 // Take the inner type of generic
1445 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
1446 pureType = getGenericType(retType);
1447 if (isEnumClass(pureType)) {
1448 // Check if this is enum type
1450 if (isArray(retType)) { // An array
1451 print(pureType + "[] retEnum = " + methodId + "(");
1452 } else if (isList(retType)) { // A list
1453 print("List<" + pureType + "> retEnum = " + methodId + "(");
1454 } else { // Just one element
1455 print(pureType + " retEnum = " + methodId + "(");
1462 * HELPER: checkAndWriteEnumRetConvJavaSkeleton() writes the enum return type (convert from enum to int)
1464 private void checkAndWriteEnumRetConvJavaSkeleton(String retType) {
1466 // Strips off array "[]" for return type
1467 String pureType = getSimpleArrayType(getGenericType(retType));
1468 // Take the inner type of generic
1469 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
1470 pureType = getGenericType(retType);
1471 if (isEnumClass(pureType)) {
1472 // Check if this is enum type
1473 if (isArray(retType)) { // An array
1474 println("int retLen = retEnum.length;");
1475 println("int[] retEnumVal = new int[retLen];");
1476 println("for (int i = 0; i < retLen; i++) {");
1477 println("retEnumVal[i] = retEnum[i].ordinal();");
1479 } else if (isList(retType)) { // A list
1480 println("int retLen = retEnum.size();");
1481 println("int[] retEnumVal = new int[retLen];");
1482 println("for (int i = 0; i < retLen; i++) {");
1483 println("retEnumVal[i] = retEnum.get(i).ordinal();");
1485 } else { // Just one element
1486 println("int[] retEnumVal = new int[1];");
1487 println("retEnumVal[0] = retEnum.ordinal();");
1489 println("Object retObj = retEnumVal;");
1495 * HELPER: writeLengthStructParamClassSkeleton() writes lengths of params
1497 private void writeLengthStructParamClassSkeleton(List<String> methParams, List<String> methPrmTypes,
1498 String method, InterfaceDecl intDecl) {
1500 // Iterate and find struct declarations - count number of params
1501 for (int i = 0; i < methParams.size(); i++) {
1502 String paramType = methPrmTypes.get(i);
1503 String param = methParams.get(i);
1504 String simpleType = getGenericType(paramType);
1505 if (isStructClass(simpleType)) {
1506 int members = getNumOfMembers(simpleType);
1507 print(Integer.toString(members) + "*");
1508 int methodNumId = intDecl.getMethodNumId(method);
1509 print("struct" + methodNumId + "Size" + i);
1512 if (i != methParams.size() - 1) {
1520 * HELPER: writeStructMembersJavaSkeleton() writes member parameters of struct
1522 private void writeStructMembersJavaSkeleton(String simpleType, String paramType,
1523 String param, String method, InterfaceDecl intDecl, int iVar) {
1525 // Get the struct declaration for this struct and generate initialization code
1526 StructDecl structDecl = getStructDecl(simpleType);
1527 List<String> memTypes = structDecl.getMemberTypes(simpleType);
1528 List<String> members = structDecl.getMembers(simpleType);
1529 println("int pos = 0;");
1530 if (isArrayOrList(paramType, param)) { // An array or list
1531 int methodNumId = intDecl.getMethodNumId(method);
1532 String counter = "struct" + methodNumId + "Size" + iVar;
1533 println("for(int i = 0; i < " + counter + "; i++) {");
1535 if (isArrayOrList(paramType, param)) { // An array or list
1536 for (int i = 0; i < members.size(); i++) {
1537 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1538 println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1539 println("paramClsGen[pos++] = null;");
1542 } else { // Just one struct element
1543 for (int i = 0; i < members.size(); i++) {
1544 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1545 println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1546 println("paramClsGen[pos++] = null;");
1553 * HELPER: writeStructMembersInitJavaSkeleton() writes member parameters initialization of struct
1555 private void writeStructMembersInitJavaSkeleton(InterfaceDecl intDecl, List<String> methParams,
1556 List<String> methPrmTypes, String method) {
1558 for (int i = 0; i < methParams.size(); i++) {
1559 String paramType = methPrmTypes.get(i);
1560 String param = methParams.get(i);
1561 String simpleType = getGenericType(paramType);
1562 if (isStructClass(simpleType)) {
1563 int methodNumId = intDecl.getMethodNumId(method);
1564 String counter = "struct" + methodNumId + "Size" + i;
1566 if (isArray(param)) { // An array
1567 println(simpleType + "[] paramStruct" + i + " = new " + simpleType + "[" + counter + "];");
1568 println("for(int i = 0; i < " + counter + "; i++) {");
1569 println("paramStruct" + i + "[i] = new " + simpleType + "();");
1571 } else if (isList(paramType)) { // A list
1572 println("List<" + simpleType + "> paramStruct" + i + " = new ArrayList<" + simpleType + ">();");
1574 println(simpleType + " paramStruct" + i + " = new " + simpleType + "();");
1575 println("int objPos = 0;");
1576 // Initialize members
1577 StructDecl structDecl = getStructDecl(simpleType);
1578 List<String> members = structDecl.getMembers(simpleType);
1579 List<String> memTypes = structDecl.getMemberTypes(simpleType);
1580 if (isArrayOrList(paramType, param)) { // An array or list
1581 println("for(int i = 0; i < " + counter + "; i++) {");
1583 if (isArray(param)) { // An array
1584 for (int j = 0; j < members.size(); j++) {
1585 String prmType = checkAndGetArray(memTypes.get(j), members.get(j));
1586 print("paramStruct" + i + "[i]." + getSimpleIdentifier(members.get(j)));
1587 println(" = (" + getSimpleType(getEnumType(prmType)) + ") paramObj[objPos++];");
1590 } else if (isList(paramType)) { // A list
1591 println(simpleType + " paramStructMem = new " + simpleType + "();");
1592 for (int j = 0; j < members.size(); j++) {
1593 String prmType = checkAndGetArray(memTypes.get(j), members.get(j));
1594 print("paramStructMem." + getSimpleIdentifier(members.get(j)));
1595 println(" = (" + getSimpleType(getEnumType(prmType)) + ") paramObj[objPos++];");
1597 println("paramStruct" + i + ".add(paramStructMem);");
1599 } else { // Just one struct element
1600 for (int j = 0; j < members.size(); j++) {
1601 String prmType = checkAndGetArray(memTypes.get(j), members.get(j));
1602 print("paramStruct" + i + "." + getSimpleIdentifier(members.get(j)));
1603 println(" = (" + getSimpleType(getEnumType(prmType)) + ") paramObj[objPos++];");
1607 // Take offsets of parameters
1608 println("int offset" + i +" = objPos;");
1615 * HELPER: writeStructReturnJavaSkeleton() writes struct for return statement
1617 private void writeStructReturnJavaSkeleton(String simpleType, String retType) {
1619 // Minimum retLen is 1 if this is a single struct object
1620 if (isArray(retType))
1621 println("int retLen = retStruct.length;");
1622 else if (isList(retType))
1623 println("int retLen = retStruct.size();");
1624 else // Just single struct object
1625 println("int retLen = 1;");
1626 println("Object retLenObj = retLen;");
1627 println("rmiObj.sendReturnObj(retLenObj);");
1628 int numMem = getNumOfMembers(simpleType);
1629 println("Class<?>[] retCls = new Class<?>[" + numMem + "*retLen];");
1630 println("Object[] retObj = new Object[" + numMem + "*retLen];");
1631 println("int retPos = 0;");
1632 // Get the struct declaration for this struct and generate initialization code
1633 StructDecl structDecl = getStructDecl(simpleType);
1634 List<String> memTypes = structDecl.getMemberTypes(simpleType);
1635 List<String> members = structDecl.getMembers(simpleType);
1636 if (isArray(retType)) { // An array or list
1637 println("for(int i = 0; i < retLen; i++) {");
1638 for (int i = 0; i < members.size(); i++) {
1639 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1640 println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1641 print("retObj[retPos++] = retStruct[i].");
1642 print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i));
1646 } else if (isList(retType)) { // An array or list
1647 println("for(int i = 0; i < retLen; i++) {");
1648 for (int i = 0; i < members.size(); i++) {
1649 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1650 println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1651 print("retObj[retPos++] = retStruct.get(i).");
1652 print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i));
1656 } else { // Just one struct element
1657 for (int i = 0; i < members.size(); i++) {
1658 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1659 println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1660 print("retObj[retPos++] = retStruct.");
1661 print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i));
1670 * HELPER: writeMethodHelperReturnJavaSkeleton() writes return statement part in skeleton
1672 private void writeMethodHelperReturnJavaSkeleton(InterfaceDecl intDecl, List<String> methParams,
1673 List<String> methPrmTypes, String method, boolean isCallbackMethod, String callbackType,
1674 boolean isStructMethod) {
1676 checkAndWriteEnumTypeJavaSkeleton(methParams, methPrmTypes);
1677 Map<Integer,String> mapStubParam = null;
1678 if (isCallbackMethod)
1679 mapStubParam = writeCallbackJavaStubGeneration(methParams, methPrmTypes, callbackType);
1680 // Check if this is "void"
1681 String retType = intDecl.getMethodType(method);
1682 if (retType.equals("void")) {
1683 print(intDecl.getMethodId(method) + "(");
1684 } else if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) { // Enum type
1685 checkAndWriteEnumRetTypeJavaSkeleton(retType, intDecl.getMethodId(method));
1686 } else if (isStructClass(getSimpleArrayType(getGenericType(retType)))) { // Struct type
1687 print(retType + " retStruct = " + intDecl.getMethodId(method) + "(");
1688 } else { // We do have a return value
1689 print("Object retObj = " + intDecl.getMethodId(method) + "(");
1691 for (int i = 0; i < methParams.size(); i++) {
1693 if (isCallbackMethod) {
1694 print(mapStubParam.get(i)); // Get the callback parameter
1695 } else if (isEnumClass(getGenericType(methPrmTypes.get(i)))) { // Enum class
1696 print(getEnumParam(methPrmTypes.get(i), methParams.get(i), i));
1697 } else if (isStructClass(getGenericType(methPrmTypes.get(i)))) {
1698 print("paramStruct" + i);
1700 String prmType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i));
1702 print("(" + prmType + ") paramObj[offset" + i + "]");
1704 print("(" + prmType + ") paramObj[" + i + "]");
1706 if (i != methParams.size() - 1)
1710 if (!retType.equals("void")) {
1711 if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) { // Enum type
1712 checkAndWriteEnumRetConvJavaSkeleton(retType);
1713 println("rmiObj.sendReturnObj(retObj);");
1714 } else if (isStructClass(getSimpleArrayType(getGenericType(retType)))) { // Struct type
1715 writeStructReturnJavaSkeleton(getSimpleArrayType(getGenericType(retType)), retType);
1716 println("rmiObj.sendReturnObj(retCls, retObj);");
1718 println("rmiObj.sendReturnObj(retObj);");
1720 if (isCallbackMethod) { // Catch exception if this is callback
1722 println(" catch(Exception ex) {");
1723 println("ex.printStackTrace();");
1724 println("throw new Error(\"Exception from callback object instantiation!\");");
1731 * HELPER: writeMethodHelperStructJavaSkeleton() writes the struct in skeleton
1733 private void writeMethodHelperStructJavaSkeleton(InterfaceDecl intDecl, List<String> methParams,
1734 List<String> methPrmTypes, String method, Set<String> callbackClasses) {
1736 // Generate array of parameter objects
1737 boolean isCallbackMethod = false;
1738 String callbackType = null;
1739 print("int paramLen = ");
1740 writeLengthStructParamClassSkeleton(methParams, methPrmTypes, method, intDecl);
1742 println("Class<?>[] paramCls = new Class<?>[paramLen];");
1743 println("Class<?>[] paramClsGen = new Class<?>[paramLen];");
1744 // Iterate again over the parameters
1745 for (int i = 0; i < methParams.size(); i++) {
1746 String paramType = methPrmTypes.get(i);
1747 String param = methParams.get(i);
1748 String simpleType = getGenericType(paramType);
1749 if (isStructClass(simpleType)) {
1750 writeStructMembersJavaSkeleton(simpleType, paramType, param, method, intDecl, i);
1752 String prmType = returnGenericCallbackType(methPrmTypes.get(i));
1753 if (callbackClasses.contains(prmType)) {
1754 isCallbackMethod = true;
1755 callbackType = prmType;
1756 println("paramCls[pos] = int.class;");
1757 println("paramClsGen[pos++] = null;");
1758 } else { // Generate normal classes if it's not a callback object
1759 String paramTypeOth = checkAndGetArray(methPrmTypes.get(i), methParams.get(i));
1760 println("paramCls[pos] = " + getSimpleType(getEnumType(paramTypeOth)) + ".class;");
1761 print("paramClsGen[pos++] = ");
1762 String prmTypeOth = methPrmTypes.get(i);
1763 if (getParamCategory(prmTypeOth) == ParamCategory.NONPRIMITIVES)
1764 println(getTypeOfGeneric(prmType)[0] + ".class;");
1770 println("Object[] paramObj = rmiObj.getMethodParams(paramCls, paramClsGen);");
1771 writeStructMembersInitJavaSkeleton(intDecl, methParams, methPrmTypes, method);
1772 // Write the return value part
1773 writeMethodHelperReturnJavaSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod, callbackType, true);
1778 * HELPER: writeStdMethodHelperBodyJavaSkeleton() writes the standard method body helper in the skeleton class
1780 private void writeStdMethodHelperBodyJavaSkeleton(InterfaceDecl intDecl, List<String> methParams,
1781 List<String> methPrmTypes, String method, Set<String> callbackClasses) {
1783 // Generate array of parameter objects
1784 boolean isCallbackMethod = false;
1785 String callbackType = null;
1786 print("Object[] paramObj = rmiObj.getMethodParams(new Class<?>[] { ");
1787 for (int i = 0; i < methParams.size(); i++) {
1789 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
1790 if (callbackClasses.contains(paramType)) {
1791 isCallbackMethod = true;
1792 callbackType = paramType;
1794 } else { // Generate normal classes if it's not a callback object
1795 String prmType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i));
1796 print(getSimpleType(getEnumType(prmType)) + ".class");
1798 if (i != methParams.size() - 1)
1802 // Generate generic class if it's a generic type.. null otherwise
1803 print("new Class<?>[] { ");
1804 for (int i = 0; i < methParams.size(); i++) {
1805 String prmType = methPrmTypes.get(i);
1806 if ((getParamCategory(prmType) == ParamCategory.NONPRIMITIVES) &&
1807 !isEnumClass(getGenericType(prmType)) &&
1808 !callbackClasses.contains(getGenericType(prmType)))
1809 print(getGenericType(prmType) + ".class");
1812 if (i != methParams.size() - 1)
1816 // Write the return value part
1817 writeMethodHelperReturnJavaSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod, callbackType, false);
1822 * HELPER: writeMethodHelperJavaSkeleton() writes the method helper of the skeleton class
1824 private void writeMethodHelperJavaSkeleton(Collection<String> methods, InterfaceDecl intDecl, Set<String> callbackClasses) {
1826 // Use this set to handle two same methodIds
1827 Set<String> uniqueMethodIds = new HashSet<String>();
1828 for (String method : methods) {
1830 List<String> methParams = intDecl.getMethodParams(method);
1831 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1832 if (isStructPresent(methParams, methPrmTypes)) { // Treat struct differently
1833 String methodId = intDecl.getMethodId(method);
1834 print("public void ___");
1835 String helperMethod = methodId;
1836 if (uniqueMethodIds.contains(methodId))
1837 helperMethod = helperMethod + intDecl.getMethodNumId(method);
1839 uniqueMethodIds.add(methodId);
1840 String retType = intDecl.getMethodType(method);
1841 print(helperMethod + "(");
1842 boolean begin = true;
1843 for (int i = 0; i < methParams.size(); i++) { // Print size variables
1844 String paramType = methPrmTypes.get(i);
1845 String param = methParams.get(i);
1846 String simpleType = getGenericType(paramType);
1847 if (isStructClass(simpleType)) {
1848 if (!begin) { // Generate comma for not the beginning variable
1849 print(", "); begin = false;
1851 int methodNumId = intDecl.getMethodNumId(method);
1852 print("int struct" + methodNumId + "Size" + i);
1855 // Check if this is "void"
1856 if (retType.equals("void"))
1859 println(") throws IOException {");
1860 writeMethodHelperStructJavaSkeleton(intDecl, methParams, methPrmTypes, method, callbackClasses);
1863 String methodId = intDecl.getMethodId(method);
1864 print("public void ___");
1865 String helperMethod = methodId;
1866 if (uniqueMethodIds.contains(methodId))
1867 helperMethod = helperMethod + intDecl.getMethodNumId(method);
1869 uniqueMethodIds.add(methodId);
1870 // Check if this is "void"
1871 String retType = intDecl.getMethodType(method);
1872 if (retType.equals("void"))
1873 println(helperMethod + "() {");
1875 println(helperMethod + "() throws IOException {");
1876 // Now, write the helper body of skeleton!
1877 writeStdMethodHelperBodyJavaSkeleton(intDecl, methParams, methPrmTypes, method, callbackClasses);
1881 // Write method helper for structs
1882 writeMethodHelperStructSetupJavaSkeleton(methods, intDecl);
1887 * HELPER: writeMethodHelperStructSetupJavaSkeleton() writes the method helper of struct setup in skeleton class
1889 private void writeMethodHelperStructSetupJavaSkeleton(Collection<String> methods,
1890 InterfaceDecl intDecl) {
1892 // Use this set to handle two same methodIds
1893 for (String method : methods) {
1895 List<String> methParams = intDecl.getMethodParams(method);
1896 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1897 // Check for params with structs
1898 for (int i = 0; i < methParams.size(); i++) {
1899 String paramType = methPrmTypes.get(i);
1900 String param = methParams.get(i);
1901 String simpleType = getGenericType(paramType);
1902 if (isStructClass(simpleType)) {
1903 int methodNumId = intDecl.getMethodNumId(method);
1904 print("public int ___");
1905 String helperMethod = methodNumId + "struct" + i;
1906 println(helperMethod + "() {");
1907 // Now, write the helper body of skeleton!
1908 println("Object[] paramObj = rmiObj.getMethodParams(new Class<?>[] { int.class }, new Class<?>[] { null });");
1909 println("return (int) paramObj[0];");
1918 * HELPER: writeMethodHelperStructSetupJavaCallbackSkeleton() writes the method helper of struct setup in callback skeleton class
1920 private void writeMethodHelperStructSetupJavaCallbackSkeleton(Collection<String> methods,
1921 InterfaceDecl intDecl) {
1923 // Use this set to handle two same methodIds
1924 for (String method : methods) {
1926 List<String> methParams = intDecl.getMethodParams(method);
1927 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1928 // Check for params with structs
1929 for (int i = 0; i < methParams.size(); i++) {
1930 String paramType = methPrmTypes.get(i);
1931 String param = methParams.get(i);
1932 String simpleType = getGenericType(paramType);
1933 if (isStructClass(simpleType)) {
1934 int methodNumId = intDecl.getMethodNumId(method);
1935 print("public int ___");
1936 String helperMethod = methodNumId + "struct" + i;
1937 println(helperMethod + "(IoTRMIObject rmiObj) {");
1938 // Now, write the helper body of skeleton!
1939 println("Object[] paramObj = rmiObj.getMethodParams(new Class<?>[] { int.class }, new Class<?>[] { null });");
1940 println("return (int) paramObj[0];");
1949 * HELPER: writeCountVarStructSkeleton() writes counter variable of struct for skeleton
1951 private void writeCountVarStructSkeleton(Collection<String> methods, InterfaceDecl intDecl) {
1953 // Use this set to handle two same methodIds
1954 for (String method : methods) {
1956 List<String> methParams = intDecl.getMethodParams(method);
1957 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1958 // Check for params with structs
1959 for (int i = 0; i < methParams.size(); i++) {
1960 String paramType = methPrmTypes.get(i);
1961 String param = methParams.get(i);
1962 String simpleType = getGenericType(paramType);
1963 if (isStructClass(simpleType)) {
1964 int methodNumId = intDecl.getMethodNumId(method);
1965 println("int struct" + methodNumId + "Size" + i + " = 0;");
1973 * HELPER: writeInputCountVarStructSkeleton() writes input counter variable of struct for skeleton
1975 private boolean writeInputCountVarStructSkeleton(String method, InterfaceDecl intDecl) {
1977 List<String> methParams = intDecl.getMethodParams(method);
1978 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1979 boolean structExist = false;
1980 // Check for params with structs
1981 for (int i = 0; i < methParams.size(); i++) {
1982 String paramType = methPrmTypes.get(i);
1983 String param = methParams.get(i);
1984 String simpleType = getGenericType(paramType);
1985 boolean begin = true;
1986 if (isStructClass(simpleType)) {
1989 print(", "); begin = false;
1991 int methodNumId = intDecl.getMethodNumId(method);
1992 print("struct" + methodNumId + "Size" + i);
2000 * HELPER: writeMethodCallStructSkeleton() writes method call for wait invoke in skeleton
2002 private void writeMethodCallStructSkeleton(Collection<String> methods, InterfaceDecl intDecl) {
2004 // Use this set to handle two same methodIds
2005 for (String method : methods) {
2007 List<String> methParams = intDecl.getMethodParams(method);
2008 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2009 // Check for params with structs
2010 for (int i = 0; i < methParams.size(); i++) {
2011 String paramType = methPrmTypes.get(i);
2012 String param = methParams.get(i);
2013 String simpleType = getGenericType(paramType);
2014 if (isStructClass(simpleType)) {
2015 int methodNumId = intDecl.getMethodNumId(method);
2017 String helperMethod = methodNumId + "struct" + i;
2018 String tempVar = "struct" + methodNumId + "Size" + i;
2019 print(intDecl.getHelperMethodNumId(helperMethod) + ": ");
2020 print(tempVar + " = ___");
2021 println(helperMethod + "(); break;");
2029 * HELPER: writeMethodCallStructCallbackSkeleton() writes method call for wait invoke in skeleton
2031 private void writeMethodCallStructCallbackSkeleton(Collection<String> methods, InterfaceDecl intDecl) {
2033 // Use this set to handle two same methodIds
2034 for (String method : methods) {
2036 List<String> methParams = intDecl.getMethodParams(method);
2037 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2038 // Check for params with structs
2039 for (int i = 0; i < methParams.size(); i++) {
2040 String paramType = methPrmTypes.get(i);
2041 String param = methParams.get(i);
2042 String simpleType = getGenericType(paramType);
2043 if (isStructClass(simpleType)) {
2044 int methodNumId = intDecl.getMethodNumId(method);
2046 String helperMethod = methodNumId + "struct" + i;
2047 String tempVar = "struct" + methodNumId + "Size" + i;
2048 print(intDecl.getHelperMethodNumId(helperMethod) + ": ");
2049 print(tempVar + " = ___");
2050 println(helperMethod + "(rmiObj); break;");
2058 * HELPER: writeJavaMethodPermission() writes permission checks in skeleton
2060 private void writeJavaMethodPermission(String intface) {
2062 // Get all the different stubs
2063 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
2064 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
2065 String newIntface = intMeth.getKey();
2066 int newObjectId = getNewIntfaceObjectId(newIntface);
2067 println("if (_objectId == object" + newObjectId + "Id) {");
2068 println("if (!set" + newObjectId + "Allowed.contains(methodId)) {");
2069 println("throw new Error(\"Object with object Id: \" + _objectId + \" is not allowed to access method: \" + methodId);");
2073 println("throw new Error(\"Object Id: \" + _objectId + \" not recognized!\");");
2080 * HELPER: writeJavaWaitRequestInvokeMethod() writes the main loop of the skeleton class
2082 private void writeJavaWaitRequestInvokeMethod(Collection<String> methods, InterfaceDecl intDecl, boolean callbackExist, String intface) {
2084 // Use this set to handle two same methodIds
2085 Set<String> uniqueMethodIds = new HashSet<String>();
2086 println("private void ___waitRequestInvokeMethod() throws IOException {");
2087 // Write variables here if we have callbacks or enums or structs
2088 writeCountVarStructSkeleton(methods, intDecl);
2089 println("while (true) {");
2090 println("rmiObj.getMethodBytes();");
2091 println("int _objectId = rmiObj.getObjectId();");
2092 println("int methodId = rmiObj.getMethodId();");
2093 // Generate permission check
2094 writeJavaMethodPermission(intface);
2095 println("switch (methodId) {");
2096 // Print methods and method Ids
2097 for (String method : methods) {
2098 String methodId = intDecl.getMethodId(method);
2099 int methodNumId = intDecl.getMethodNumId(method);
2100 print("case " + methodNumId + ": ___");
2101 String helperMethod = methodId;
2102 if (uniqueMethodIds.contains(methodId))
2103 helperMethod = helperMethod + methodNumId;
2105 uniqueMethodIds.add(methodId);
2106 print(helperMethod + "(");
2107 writeInputCountVarStructSkeleton(method, intDecl);
2108 println("); break;");
2110 String method = "___initCallBack()";
2111 // Print case -9999 (callback handler) if callback exists
2112 if (callbackExist) {
2113 int methodId = intDecl.getHelperMethodNumId(method);
2114 println("case " + methodId + ": ___regCB(); break;");
2116 writeMethodCallStructSkeleton(methods, intDecl);
2117 println("default: ");
2118 println("throw new Error(\"Method Id \" + methodId + \" not recognized!\");");
2126 * generateJavaSkeletonClass() generate skeletons based on the methods list in Java
2128 public void generateJavaSkeletonClass() throws IOException {
2130 // Create a new directory
2131 String path = createDirectories(dir, subdir);
2132 for (String intface : mapIntfacePTH.keySet()) {
2133 // Open a new file to write into
2134 String newSkelClass = intface + "_Skeleton";
2135 FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".java");
2136 pw = new PrintWriter(new BufferedWriter(fw));
2137 // Pass in set of methods and get import classes
2138 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2139 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
2140 List<String> methods = intDecl.getMethods();
2141 Set<String> importClasses = getImportClasses(methods, intDecl);
2142 List<String> stdImportClasses = getStandardJavaImportClasses();
2143 List<String> allImportClasses = getAllLibClasses(stdImportClasses, importClasses);
2144 printImportStatements(allImportClasses);
2145 // Find out if there are callback objects
2146 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
2147 boolean callbackExist = !callbackClasses.isEmpty();
2148 // Write class header
2150 println("public class " + newSkelClass + " implements " + intface + " {\n");
2152 writePropertiesJavaSkeleton(intface, callbackExist, intDecl);
2153 // Write constructor
2154 writeConstructorJavaSkeleton(newSkelClass, intface, intDecl, methods, callbackExist);
2156 writeMethodJavaSkeleton(methods, intDecl, callbackClasses, false);
2157 // Write method helper
2158 writeMethodHelperJavaSkeleton(methods, intDecl, callbackClasses);
2159 // Write waitRequestInvokeMethod() - main loop
2160 writeJavaWaitRequestInvokeMethod(methods, intDecl, callbackExist, intface);
2163 System.out.println("IoTCompiler: Generated skeleton class " + newSkelClass + ".java...");
2169 * HELPER: writePropertiesJavaCallbackSkeleton() writes the properties of the callback skeleton class
2171 private void writePropertiesJavaCallbackSkeleton(String intface, boolean callbackExist) {
2173 println("private " + intface + " mainObj;");
2174 // For callback skeletons, this is its own object Id
2175 println("private static int objectId = 0;");
2177 if (callbackExist) {
2178 println("private static int objIdCnt = 0;");
2179 println("private IoTRMICall rmiCall;");
2186 * HELPER: writeConstructorJavaCallbackSkeleton() writes the constructor of the skeleton class
2188 private void writeConstructorJavaCallbackSkeleton(String newSkelClass, String intface, InterfaceDecl intDecl, Collection<String> methods) {
2190 println("public " + newSkelClass + "(" + intface + " _mainObj, int _objectId) throws Exception {");
2191 println("mainObj = _mainObj;");
2192 println("objectId = _objectId;");
2198 * HELPER: writeMethodHelperJavaCallbackSkeleton() writes the method helper of the callback skeleton class
2200 private void writeMethodHelperJavaCallbackSkeleton(Collection<String> methods, InterfaceDecl intDecl, Set<String> callbackClasses) {
2202 // Use this set to handle two same methodIds
2203 Set<String> uniqueMethodIds = new HashSet<String>();
2204 for (String method : methods) {
2206 List<String> methParams = intDecl.getMethodParams(method);
2207 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2208 if (isStructPresent(methParams, methPrmTypes)) { // Treat struct differently
2209 String methodId = intDecl.getMethodId(method);
2210 print("public void ___");
2211 String helperMethod = methodId;
2212 if (uniqueMethodIds.contains(methodId))
2213 helperMethod = helperMethod + intDecl.getMethodNumId(method);
2215 uniqueMethodIds.add(methodId);
2216 String retType = intDecl.getMethodType(method);
2217 print(helperMethod + "(");
2218 boolean begin = true;
2219 for (int i = 0; i < methParams.size(); i++) { // Print size variables
2220 String paramType = methPrmTypes.get(i);
2221 String param = methParams.get(i);
2222 String simpleType = getGenericType(paramType);
2223 if (isStructClass(simpleType)) {
2224 if (!begin) { // Generate comma for not the beginning variable
2225 print(", "); begin = false;
2227 int methodNumId = intDecl.getMethodNumId(method);
2228 print("int struct" + methodNumId + "Size" + i);
2231 // Check if this is "void"
2232 if (retType.equals("void"))
2233 println(", IoTRMIObject rmiObj) {");
2235 println(", IoTRMIObject rmiObj) throws IOException {");
2236 writeMethodHelperStructJavaSkeleton(intDecl, methParams, methPrmTypes, method, callbackClasses);
2239 String methodId = intDecl.getMethodId(method);
2240 print("public void ___");
2241 String helperMethod = methodId;
2242 if (uniqueMethodIds.contains(methodId))
2243 helperMethod = helperMethod + intDecl.getMethodNumId(method);
2245 uniqueMethodIds.add(methodId);
2246 // Check if this is "void"
2247 String retType = intDecl.getMethodType(method);
2248 if (retType.equals("void"))
2249 println(helperMethod + "(IoTRMIObject rmiObj) {");
2251 println(helperMethod + "(IoTRMIObject rmiObj) throws IOException {");
2252 // Now, write the helper body of skeleton!
2253 writeStdMethodHelperBodyJavaSkeleton(intDecl, methParams, methPrmTypes, method, callbackClasses);
2257 // Write method helper for structs
2258 writeMethodHelperStructSetupJavaCallbackSkeleton(methods, intDecl);
2263 * HELPER: writeJavaCallbackWaitRequestInvokeMethod() writes the request invoke method of the callback skeleton class
2265 private void writeJavaCallbackWaitRequestInvokeMethod(Collection<String> methods, InterfaceDecl intDecl, boolean callbackExist) {
2267 // Use this set to handle two same methodIds
2268 Set<String> uniqueMethodIds = new HashSet<String>();
2269 println("public void invokeMethod(IoTRMIObject rmiObj) throws IOException {");
2270 // Write variables here if we have callbacks or enums or structs
2271 writeCountVarStructSkeleton(methods, intDecl);
2272 // Write variables here if we have callbacks or enums or structs
2273 println("int methodId = rmiObj.getMethodId();");
2274 // TODO: code the permission check here!
2275 println("switch (methodId) {");
2276 // Print methods and method Ids
2277 for (String method : methods) {
2278 String methodId = intDecl.getMethodId(method);
2279 int methodNumId = intDecl.getMethodNumId(method);
2280 print("case " + methodNumId + ": ___");
2281 String helperMethod = methodId;
2282 if (uniqueMethodIds.contains(methodId))
2283 helperMethod = helperMethod + methodNumId;
2285 uniqueMethodIds.add(methodId);
2286 print(helperMethod + "(");
2287 if (writeInputCountVarStructSkeleton(method, intDecl))
2288 println(", rmiObj); break;");
2290 println("rmiObj); break;");
2292 String method = "___initCallBack()";
2293 // Print case -9999 (callback handler) if callback exists
2294 if (callbackExist) {
2295 int methodId = intDecl.getHelperMethodNumId(method);
2296 println("case " + methodId + ": ___regCB(rmiObj); break;");
2298 writeMethodCallStructCallbackSkeleton(methods, intDecl);
2299 println("default: ");
2300 println("throw new Error(\"Method Id \" + methodId + \" not recognized!\");");
2307 * generateJavaCallbackSkeletonClass() generate callback skeletons based on the methods list in Java
2309 public void generateJavaCallbackSkeletonClass() throws IOException {
2311 // Create a new directory
2312 String path = createDirectories(dir, subdir);
2313 for (String intface : mapIntfacePTH.keySet()) {
2314 // Open a new file to write into
2315 String newSkelClass = intface + "_CallbackSkeleton";
2316 FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".java");
2317 pw = new PrintWriter(new BufferedWriter(fw));
2318 // Pass in set of methods and get import classes
2319 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2320 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
2321 List<String> methods = intDecl.getMethods();
2322 Set<String> importClasses = getImportClasses(methods, intDecl);
2323 List<String> stdImportClasses = getStandardJavaImportClasses();
2324 List<String> allImportClasses = getAllLibClasses(stdImportClasses, importClasses);
2325 printImportStatements(allImportClasses);
2326 // Find out if there are callback objects
2327 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
2328 boolean callbackExist = !callbackClasses.isEmpty();
2329 // Write class header
2331 println("public class " + newSkelClass + " implements " + intface + " {\n");
2333 writePropertiesJavaCallbackSkeleton(intface, callbackExist);
2334 // Write constructor
2335 writeConstructorJavaCallbackSkeleton(newSkelClass, intface, intDecl, methods);
2337 writeMethodJavaSkeleton(methods, intDecl, callbackClasses, true);
2338 // Write method helper
2339 writeMethodHelperJavaCallbackSkeleton(methods, intDecl, callbackClasses);
2340 // Write waitRequestInvokeMethod() - main loop
2341 writeJavaCallbackWaitRequestInvokeMethod(methods, intDecl, callbackExist);
2344 System.out.println("IoTCompiler: Generated callback skeleton class " + newSkelClass + ".java...");
2350 * HELPER: writeMethodCplusLocalInterface() writes the method of the local interface
2352 private void writeMethodCplusLocalInterface(Collection<String> methods, InterfaceDecl intDecl) {
2354 for (String method : methods) {
2356 List<String> methParams = intDecl.getMethodParams(method);
2357 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2358 print("virtual " + checkAndGetCplusType(intDecl.getMethodType(method)) + " " +
2359 intDecl.getMethodId(method) + "(");
2360 for (int i = 0; i < methParams.size(); i++) {
2361 // Check for params with driver class types and exchange it
2362 // with its remote interface
2363 String paramType = checkAndGetParamClass(methPrmTypes.get(i));
2364 paramType = checkAndGetCplusType(paramType);
2365 // Check for arrays - translate into vector in C++
2366 String paramComplete = checkAndGetCplusArray(paramType, methParams.get(i));
2367 print(paramComplete);
2368 // Check if this is the last element (don't print a comma)
2369 if (i != methParams.size() - 1) {
2379 * HELPER: writeMethodCplusInterface() writes the method of the interface
2381 private void writeMethodCplusInterface(Collection<String> methods, InterfaceDecl intDecl) {
2383 for (String method : methods) {
2385 List<String> methParams = intDecl.getMethodParams(method);
2386 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2387 print("virtual " + checkAndGetCplusType(intDecl.getMethodType(method)) + " " +
2388 intDecl.getMethodId(method) + "(");
2389 for (int i = 0; i < methParams.size(); i++) {
2390 // Check for params with driver class types and exchange it
2391 // with its remote interface
2392 String paramType = methPrmTypes.get(i);
2393 paramType = checkAndGetCplusType(paramType);
2394 // Check for arrays - translate into vector in C++
2395 String paramComplete = checkAndGetCplusArray(paramType, methParams.get(i));
2396 print(paramComplete);
2397 // Check if this is the last element (don't print a comma)
2398 if (i != methParams.size() - 1) {
2408 * HELPER: generateEnumCplus() writes the enumeration declaration
2410 public void generateEnumCplus() throws IOException {
2412 // Create a new directory
2413 createDirectory(dir);
2414 for (String intface : mapIntfacePTH.keySet()) {
2415 // Get the right StructDecl
2416 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2417 EnumDecl enumDecl = (EnumDecl) decHandler.getEnumDecl(intface);
2418 Set<String> enumTypes = enumDecl.getEnumDeclarations();
2419 // Iterate over enum declarations
2420 for (String enType : enumTypes) {
2421 // Open a new file to write into
2422 FileWriter fw = new FileWriter(dir + "/" + enType + ".hpp");
2423 pw = new PrintWriter(new BufferedWriter(fw));
2424 // Write file headers
2425 println("#ifndef _" + enType.toUpperCase() + "_HPP__");
2426 println("#define _" + enType.toUpperCase() + "_HPP__");
2427 println("enum " + enType + " {");
2428 List<String> enumMembers = enumDecl.getMembers(enType);
2429 for (int i = 0; i < enumMembers.size(); i++) {
2431 String member = enumMembers.get(i);
2433 // Check if this is the last element (don't print a comma)
2434 if (i != enumMembers.size() - 1)
2442 System.out.println("IoTCompiler: Generated enum " + enType + ".hpp...");
2449 * HELPER: generateStructCplus() writes the struct declaration
2451 public void generateStructCplus() throws IOException {
2453 // Create a new directory
2454 createDirectory(dir);
2455 for (String intface : mapIntfacePTH.keySet()) {
2456 // Get the right StructDecl
2457 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2458 StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface);
2459 List<String> structTypes = structDecl.getStructTypes();
2460 // Iterate over enum declarations
2461 for (String stType : structTypes) {
2462 // Open a new file to write into
2463 FileWriter fw = new FileWriter(dir + "/" + stType + ".hpp");
2464 pw = new PrintWriter(new BufferedWriter(fw));
2465 // Write file headers
2466 println("#ifndef _" + stType.toUpperCase() + "_HPP__");
2467 println("#define _" + stType.toUpperCase() + "_HPP__");
2468 println("using namespace std;");
2469 println("struct " + stType + " {");
2470 List<String> structMemberTypes = structDecl.getMemberTypes(stType);
2471 List<String> structMembers = structDecl.getMembers(stType);
2472 for (int i = 0; i < structMembers.size(); i++) {
2474 String memberType = structMemberTypes.get(i);
2475 String member = structMembers.get(i);
2476 String structTypeC = checkAndGetCplusType(memberType);
2477 String structComplete = checkAndGetCplusArray(structTypeC, member);
2478 println(structComplete + ";");
2483 System.out.println("IoTCompiler: Generated struct " + stType + ".hpp...");
2490 * generateCplusLocalInterfaces() writes the local interfaces and provides type-checking.
2492 * It needs to rewrite and exchange USERDEFINED types in input parameters of stub
2493 * and original interfaces, e.g. exchange Camera and CameraWithVideoAndRecording.
2494 * The local interface has to be the input parameter for the stub and the stub
2495 * interface has to be the input parameter for the local class.
2497 public void generateCplusLocalInterfaces() throws IOException {
2499 // Create a new directory
2500 createDirectory(dir);
2501 for (String intface : mapIntfacePTH.keySet()) {
2502 // Open a new file to write into
2503 FileWriter fw = new FileWriter(dir + "/" + intface + ".hpp");
2504 pw = new PrintWriter(new BufferedWriter(fw));
2505 // Write file headers
2506 println("#ifndef _" + intface.toUpperCase() + "_HPP__");
2507 println("#define _" + intface.toUpperCase() + "_HPP__");
2508 println("#include <iostream>");
2509 // Pass in set of methods and get include classes
2510 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2511 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
2512 List<String> methods = intDecl.getMethods();
2513 Set<String> includeClasses = getIncludeClasses(methods, intDecl, intface, true);
2514 printIncludeStatements(includeClasses); println("");
2515 println("using namespace std;\n");
2516 //writeStructCplus(structDecl);
2517 println("class " + intface); println("{");
2520 writeMethodCplusLocalInterface(methods, intDecl);
2524 System.out.println("IoTCompiler: Generated local interface " + intface + ".hpp...");
2530 * generateCPlusInterfaces() generate stub interfaces based on the methods list in C++
2532 * For C++ we use virtual classe as interface
2534 public void generateCPlusInterfaces() throws IOException {
2536 // Create a new directory
2537 String path = createDirectories(dir, subdir);
2538 for (String intface : mapIntfacePTH.keySet()) {
2540 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
2541 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
2543 // Open a new file to write into
2544 String newIntface = intMeth.getKey();
2545 FileWriter fw = new FileWriter(path + "/" + newIntface + ".hpp");
2546 pw = new PrintWriter(new BufferedWriter(fw));
2547 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2548 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
2549 // Write file headers
2550 println("#ifndef _" + newIntface.toUpperCase() + "_HPP__");
2551 println("#define _" + newIntface.toUpperCase() + "_HPP__");
2552 println("#include <iostream>");
2553 // Pass in set of methods and get import classes
2554 Set<String> includeClasses = getIncludeClasses(intMeth.getValue(), intDecl, intface, false);
2555 List<String> stdIncludeClasses = getStandardCplusIncludeClasses();
2556 List<String> allIncludeClasses = getAllLibClasses(stdIncludeClasses, includeClasses);
2557 printIncludeStatements(allIncludeClasses); println("");
2558 println("using namespace std;\n");
2559 println("class " + newIntface);
2563 writeMethodCplusInterface(intMeth.getValue(), intDecl);
2567 System.out.println("IoTCompiler: Generated interface " + newIntface + ".hpp...");
2574 * HELPER: writeMethodCplusStub() writes the methods of the stub
2576 private void writeMethodCplusStub(Collection<String> methods, InterfaceDecl intDecl, Set<String> callbackClasses) {
2578 boolean isDefined = false;
2579 for (String method : methods) {
2581 List<String> methParams = intDecl.getMethodParams(method);
2582 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2583 print(checkAndGetCplusType(intDecl.getMethodType(method)) + " " +
2584 intDecl.getMethodId(method) + "(");
2585 boolean isCallbackMethod = false;
2586 String callbackType = null;
2587 for (int i = 0; i < methParams.size(); i++) {
2589 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
2590 // Check if this has callback object
2591 if (callbackClasses.contains(paramType)) {
2592 isCallbackMethod = true;
2593 callbackType = paramType;
2594 // Even if there're 2 callback arguments, we expect them to be of the same interface
2596 String methPrmType = checkAndGetCplusType(methPrmTypes.get(i));
2597 String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i));
2598 print(methParamComplete);
2599 // Check if this is the last element (don't print a comma)
2600 if (i != methParams.size() - 1) {
2605 if (isCallbackMethod)
2606 writeCallbackMethodBodyCplusStub(intDecl, methParams, methPrmTypes, method, callbackType);
2608 writeStdMethodBodyCplusStub(intDecl, methParams, methPrmTypes, method, callbackClasses);
2610 // Write the init callback helper method
2611 if (isCallbackMethod && !isDefined) {
2612 writeInitCallbackCplusStub(callbackType, intDecl);
2613 writeInitCallbackSendInfoCplusStub(intDecl);
2621 * HELPER: writeCallbackMethodBodyCplusStub() writes the callback method of the stub class
2623 private void writeCallbackMethodBodyCplusStub(InterfaceDecl intDecl, List<String> methParams,
2624 List<String> methPrmTypes, String method, String callbackType) {
2626 // Check if this is single object, array, or list of objects
2627 boolean isArrayOrList = false;
2628 String callbackParam = null;
2629 for (int i = 0; i < methParams.size(); i++) {
2631 String paramType = methPrmTypes.get(i);
2632 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
2633 String param = methParams.get(i);
2634 if (isArrayOrList(paramType, param)) { // Generate loop
2635 println("for (" + getGenericType(paramType) + "* cb : " + getSimpleIdentifier(param) + ") {");
2636 println(callbackType + "_CallbackSkeleton* skel = new " + callbackType + "_CallbackSkeleton(cb, objIdCnt++);");
2637 isArrayOrList = true;
2638 callbackParam = getSimpleIdentifier(param);
2640 println(callbackType + "_CallbackSkeleton* skel = new " + callbackType + "_CallbackSkeleton(" +
2641 getSimpleIdentifier(param) + ", objIdCnt++);");
2642 println("vecCallbackObj.push_back(skel);");
2647 println("int numParam = " + methParams.size() + ";");
2648 println("int methodId = " + intDecl.getMethodNumId(method) + ";");
2649 String retType = intDecl.getMethodType(method);
2650 //String retTypeC = checkAndGetCplusType(retType);
2651 //println("string retType = \"" + checkAndGetCplusArrayType(getStructType(getEnumType(retTypeC))) + "\";");
2652 println("string retType = \"" + checkAndGetCplusRetClsType(getStructType(getEnumType(retType))) + "\";");
2653 // Generate array of parameter types
2654 print("string paramCls[] = { ");
2655 for (int i = 0; i < methParams.size(); i++) {
2656 String paramType = methPrmTypes.get(i);
2657 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
2659 } else { // Generate normal classes if it's not a callback object
2660 String paramTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i));
2661 print("\"" + paramTypeC + "\"");
2663 if (i != methParams.size() - 1) // Check if this is the last element
2667 print("int ___paramCB = ");
2669 println(callbackParam + ".size();");
2672 // Generate array of parameter objects
2673 print("void* paramObj[] = { ");
2674 for (int i = 0; i < methParams.size(); i++) {
2675 String paramType = methPrmTypes.get(i);
2676 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
2677 print("&___paramCB");
2679 print(getSimpleIdentifier(methParams.get(i)));
2680 if (i != methParams.size() - 1)
2684 // Check if this is "void"
2685 if (retType.equals("void")) {
2686 println("void* retObj = NULL;");
2687 println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retObj);");
2688 } else { // We do have a return value
2689 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
2690 println(checkAndGetCplusType(retType) + " retVal;");
2692 println(checkAndGetCplusType(retType) + " retVal = " + generateCplusInitializer(retType) + ";");
2693 println("void* retObj = &retVal;");
2694 println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retObj);");
2695 println("return retVal;");
2701 * HELPER: checkAndWriteEnumTypeCplusStub() writes the enum type (convert from enum to int)
2703 private void checkAndWriteEnumTypeCplusStub(List<String> methParams, List<String> methPrmTypes) {
2705 // Iterate and find enum declarations
2706 for (int i = 0; i < methParams.size(); i++) {
2707 String paramType = methPrmTypes.get(i);
2708 String param = methParams.get(i);
2709 if (isEnumClass(getGenericType(paramType))) {
2710 // Check if this is enum type
2711 if (isArrayOrList(paramType, param)) { // An array or vector
2712 println("int len" + i + " = " + getSimpleIdentifier(param) + ".size();");
2713 println("vector<int> paramEnum" + i + "(len" + i + ");");
2714 println("for (int i = 0; i < len" + i + "; i++) {");
2715 println("paramEnum" + i + "[i] = (int) " + getSimpleIdentifier(param) + "[i];");
2717 } else { // Just one element
2718 println("vector<int> paramEnum" + i + "(1);");
2719 println("paramEnum" + i + "[0] = (int) " + param + ";");
2727 * HELPER: checkAndWriteEnumRetTypeCplusStub() writes the enum return type (convert from enum to int)
2729 private void checkAndWriteEnumRetTypeCplusStub(String retType) {
2731 // Strips off array "[]" for return type
2732 String pureType = getSimpleArrayType(getGenericType(retType));
2733 // Take the inner type of generic
2734 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
2735 pureType = getGenericType(retType);
2736 if (isEnumClass(pureType)) {
2737 // Check if this is enum type
2738 println("vector<int> retEnumInt;");
2739 println("void* retObj = &retEnumInt;");
2740 println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retObj);");
2741 if (isArrayOrList(retType, retType)) { // An array or vector
2742 println("int retLen = retEnumInt.size();");
2743 println("vector<" + pureType + "> retVal(retLen);");
2744 println("for (int i = 0; i < retLen; i++) {");
2745 println("retVal[i] = (" + pureType + ") retEnumInt[i];");
2747 } else { // Just one element
2748 println(pureType + " retVal = (" + pureType + ") retEnumInt[0];");
2750 println("return retVal;");
2756 * HELPER: checkAndWriteStructSetupCplusStub() writes the struct type setup
2758 private void checkAndWriteStructSetupCplusStub(List<String> methParams, List<String> methPrmTypes,
2759 InterfaceDecl intDecl, String method) {
2761 // Iterate and find struct declarations
2762 for (int i = 0; i < methParams.size(); i++) {
2763 String paramType = methPrmTypes.get(i);
2764 String param = methParams.get(i);
2765 String simpleType = getGenericType(paramType);
2766 if (isStructClass(simpleType)) {
2767 // Check if this is enum type
2768 println("int numParam" + i + " = 1;");
2769 int methodNumId = intDecl.getMethodNumId(method);
2770 String helperMethod = methodNumId + "struct" + i;
2771 println("int methodIdStruct" + i + " = " + intDecl.getHelperMethodNumId(helperMethod) + ";");
2772 println("string retTypeStruct" + i + " = \"void\";");
2773 println("string paramClsStruct" + i + "[] = { \"int\" };");
2774 print("int structLen" + i + " = ");
2775 if (isArrayOrList(paramType, param)) { // An array
2776 println(getSimpleArrayType(param) + ".size();");
2777 } else { // Just one element
2780 println("void* paramObjStruct" + i + "[] = { &structLen" + i + " };");
2781 println("void* retStructLen" + i + " = NULL;");
2782 println("rmiCall->remoteCall(objectId, methodIdStruct" + i +
2783 ", retTypeStruct" + i + ", paramClsStruct" + i + ", paramObjStruct" + i +
2784 ", numParam" + i + ", retStructLen" + i + ");\n");
2791 * HELPER: writeLengthStructParamClassCplusStub() writes lengths of params
2793 private void writeLengthStructParamClassCplusStub(List<String> methParams, List<String> methPrmTypes) {
2795 // Iterate and find struct declarations - count number of params
2796 for (int i = 0; i < methParams.size(); i++) {
2797 String paramType = methPrmTypes.get(i);
2798 String param = methParams.get(i);
2799 String simpleType = getGenericType(paramType);
2800 if (isStructClass(simpleType)) {
2801 int members = getNumOfMembers(simpleType);
2802 if (isArrayOrList(paramType, param)) { // An array or list
2803 String structLen = getSimpleIdentifier(param) + ".size()";
2804 print(members + "*" + structLen);
2806 print(Integer.toString(members));
2809 if (i != methParams.size() - 1) {
2817 * HELPER: writeStructMembersCplusStub() writes member parameters of struct
2819 private void writeStructMembersCplusStub(String simpleType, String paramType, String param) {
2821 // Get the struct declaration for this struct and generate initialization code
2822 StructDecl structDecl = getStructDecl(simpleType);
2823 List<String> memTypes = structDecl.getMemberTypes(simpleType);
2824 List<String> members = structDecl.getMembers(simpleType);
2825 if (isArrayOrList(paramType, param)) { // An array or list
2826 println("for(int i = 0; i < " + getSimpleIdentifier(param) + ".size(); i++) {");
2828 if (isArrayOrList(paramType, param)) { // An array or list
2829 for (int i = 0; i < members.size(); i++) {
2830 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
2831 println("paramCls[pos] = \"" + prmTypeC + "\";");
2832 print("paramObj[pos++] = &" + getSimpleIdentifier(param) + "[i].");
2833 print(getSimpleIdentifier(members.get(i)));
2837 } else { // Just one struct element
2838 for (int i = 0; i < members.size(); i++) {
2839 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
2840 println("paramCls[pos] = \"" + prmTypeC + "\";");
2841 print("paramObj[pos++] = &" + param + ".");
2842 print(getSimpleIdentifier(members.get(i)));
2850 * HELPER: writeStructParamClassCplusStub() writes member parameters of struct
2852 private void writeStructParamClassCplusStub(List<String> methParams, List<String> methPrmTypes) {
2854 print("int numParam = ");
2855 writeLengthStructParamClassCplusStub(methParams, methPrmTypes);
2857 println("void* paramObj[numParam];");
2858 println("string paramCls[numParam];");
2859 println("int pos = 0;");
2860 // Iterate again over the parameters
2861 for (int i = 0; i < methParams.size(); i++) {
2862 String paramType = methPrmTypes.get(i);
2863 String param = methParams.get(i);
2864 String simpleType = getGenericType(paramType);
2865 if (isStructClass(simpleType)) {
2866 writeStructMembersCplusStub(simpleType, paramType, param);
2868 String prmTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i));
2869 println("paramCls[pos] = \"" + prmTypeC + "\";");
2870 print("paramObj[pos++] = &");
2871 print(getEnumParam(methPrmTypes.get(i), getSimpleIdentifier(methParams.get(i)), i));
2880 * HELPER: writeStructRetMembersCplusStub() writes member parameters of struct for return statement
2882 private void writeStructRetMembersCplusStub(String simpleType, String retType) {
2884 // Get the struct declaration for this struct and generate initialization code
2885 StructDecl structDecl = getStructDecl(simpleType);
2886 List<String> memTypes = structDecl.getMemberTypes(simpleType);
2887 List<String> members = structDecl.getMembers(simpleType);
2888 if (isArrayOrList(retType, retType)) { // An array or list
2889 println("for(int i = 0; i < retLen; i++) {");
2891 if (isArrayOrList(retType, retType)) { // An array or list
2892 for (int i = 0; i < members.size(); i++) {
2893 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
2894 print("structRet[i]." + getSimpleIdentifier(members.get(i)));
2895 println(" = retParam" + i + "[i];");
2898 } else { // Just one struct element
2899 for (int i = 0; i < members.size(); i++) {
2900 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
2901 print("structRet." + getSimpleIdentifier(members.get(i)));
2902 println(" = retParam" + i + ";");
2905 println("return structRet;");
2910 * HELPER: writeStructReturnCplusStub() writes member parameters of struct for return statement
2912 private void writeStructReturnCplusStub(String simpleType, String retType) {
2914 // Minimum retLen is 1 if this is a single struct object
2915 println("int retLen = 0;");
2916 println("void* retLenObj = { &retLen };");
2917 // Handle the returned struct!!!
2918 println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retLenObj);");
2919 int numMem = getNumOfMembers(simpleType);
2920 println("int numRet = " + numMem + "*retLen;");
2921 println("string retCls[numRet];");
2922 println("void* retObj[numRet];");
2923 StructDecl structDecl = getStructDecl(simpleType);
2924 List<String> memTypes = structDecl.getMemberTypes(simpleType);
2925 List<String> members = structDecl.getMembers(simpleType);
2927 if (isArrayOrList(retType, retType)) { // An array or list
2928 for (int i = 0; i < members.size(); i++) {
2929 String prmTypeC = checkAndGetCplusType(memTypes.get(i));
2930 String prmType = checkAndGetCplusArrayType(prmTypeC, members.get(i));
2931 println(getSimpleType(getEnumType(prmType)) + " retParam" + i + "[retLen];");
2933 } else { // Just one struct element
2934 for (int i = 0; i < members.size(); i++) {
2935 String prmTypeC = checkAndGetCplusType(memTypes.get(i));
2936 String prmType = checkAndGetCplusArrayType(prmTypeC, members.get(i));
2937 println(getSimpleType(getEnumType(prmType)) + " retParam" + i + ";");
2940 println("int retPos = 0;");
2941 // Get the struct declaration for this struct and generate initialization code
2942 if (isArrayOrList(retType, retType)) { // An array or list
2943 println("for(int i = 0; i < retLen; i++) {");
2944 for (int i = 0; i < members.size(); i++) {
2945 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
2946 println("retCls[retPos] = \"" + prmTypeC + "\";");
2947 println("retObj[retPos++] = &retParam" + i + "[i];");
2950 } else { // Just one struct element
2951 for (int i = 0; i < members.size(); i++) {
2952 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
2953 println("retCls[retPos] = \"" + prmTypeC + "\";");
2954 println("retObj[retPos++] = &retParam" + i + ";");
2957 println("rmiCall->getStructObjects(retCls, numRet, retObj);");
2958 if (isArrayOrList(retType, retType)) { // An array or list
2959 println("vector<" + simpleType + "> structRet(retLen);");
2961 println(simpleType + " structRet;");
2962 writeStructRetMembersCplusStub(simpleType, retType);
2967 * HELPER: writeStdMethodBodyCplusStub() writes the standard method body in the stub class
2969 private void writeStdMethodBodyCplusStub(InterfaceDecl intDecl, List<String> methParams,
2970 List<String> methPrmTypes, String method, Set<String> callbackClasses) {
2972 checkAndWriteStructSetupCplusStub(methParams, methPrmTypes, intDecl, method);
2973 println("int methodId = " + intDecl.getMethodNumId(method) + ";");
2974 String retType = intDecl.getMethodType(method);
2975 println("string retType = \"" + checkAndGetCplusRetClsType(getStructType(getEnumType(retType))) + "\";");
2976 // Generate array of parameter types
2977 if (isStructPresent(methParams, methPrmTypes)) {
2978 writeStructParamClassCplusStub(methParams, methPrmTypes);
2980 println("int numParam = " + methParams.size() + ";");
2981 print("string paramCls[] = { ");
2982 for (int i = 0; i < methParams.size(); i++) {
2983 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
2984 if (callbackClasses.contains(paramType)) {
2987 String paramTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i));
2988 print("\"" + paramTypeC + "\"");
2990 // Check if this is the last element (don't print a comma)
2991 if (i != methParams.size() - 1) {
2996 checkAndWriteEnumTypeCplusStub(methParams, methPrmTypes);
2997 // Generate array of parameter objects
2998 print("void* paramObj[] = { ");
2999 for (int i = 0; i < methParams.size(); i++) {
3000 print("&" + getEnumParam(methPrmTypes.get(i), getSimpleIdentifier(methParams.get(i)), i));
3001 // Check if this is the last element (don't print a comma)
3002 if (i != methParams.size() - 1) {
3008 // Check if this is "void"
3009 if (retType.equals("void")) {
3010 println("void* retObj = NULL;");
3011 println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retObj);");
3012 } else { // We do have a return value
3013 // Generate array of parameter types
3014 if (isStructClass(getGenericType(getSimpleArrayType(retType)))) {
3015 writeStructReturnCplusStub(getGenericType(getSimpleArrayType(retType)), retType);
3017 // Check if the return value NONPRIMITIVES
3018 if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) {
3019 checkAndWriteEnumRetTypeCplusStub(retType);
3021 //if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
3022 if (isArrayOrList(retType,retType))
3023 println(checkAndGetCplusType(retType) + " retVal;");
3025 println(checkAndGetCplusType(retType) + " retVal = " + generateCplusInitializer(retType) + ";");
3027 println("void* retObj = &retVal;");
3028 println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retObj);");
3029 println("return retVal;");
3037 * HELPER: writePropertiesCplusStub() writes the properties of the stub class
3039 private void writePropertiesCplusPermission(String intface) {
3041 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3042 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3043 String newIntface = intMeth.getKey();
3044 int newObjectId = getNewIntfaceObjectId(newIntface);
3045 println("const static int object" + newObjectId + "Id = " + newObjectId + ";\t//" + newIntface);
3046 println("static set<int> set" + newObjectId + "Allowed;");
3051 * HELPER: writePropertiesCplusStub() writes the properties of the stub class
3053 private void writePropertiesCplusStub(String intface, String newIntface, boolean callbackExist, Set<String> callbackClasses) {
3055 println("IoTRMICall *rmiCall;");
3056 //println("IoTRMIObject\t\t\t*rmiObj;");
3057 println("string address;");
3058 println("vector<int> ports;\n");
3059 // Get the object Id
3060 Integer objId = mapIntfaceObjId.get(intface);
3061 println("const static int objectId = " + objId + ";");
3062 mapNewIntfaceObjId.put(newIntface, objId);
3063 mapIntfaceObjId.put(intface, objId++);
3064 if (callbackExist) {
3065 // We assume that each class only has one callback interface for now
3066 Iterator it = callbackClasses.iterator();
3067 String callbackType = (String) it.next();
3068 println("// Callback properties");
3069 println("IoTRMIObject *rmiObj;");
3070 println("vector<" + callbackType + "*> vecCallbackObj;");
3071 println("static int objIdCnt;");
3072 // Generate permission stuff for callback stubs
3073 writePropertiesCplusPermission(callbackType);
3080 * HELPER: writeConstructorCplusStub() writes the constructor of the stub class
3082 private void writeConstructorCplusStub(String newStubClass, boolean callbackExist, Set<String> callbackClasses) {
3084 println(newStubClass +
3085 "(int _port, const char* _address, int _rev, bool* _bResult, vector<int> _ports) {");
3086 println("address = _address;");
3087 println("ports = _ports;");
3088 println("rmiCall = new IoTRMICall(_port, _address, _rev, _bResult);");
3089 if (callbackExist) {
3090 Iterator it = callbackClasses.iterator();
3091 String callbackType = (String) it.next();
3092 println("thread th1 (&" + newStubClass + "::___initCallBack, this);");
3093 println("th1.detach();");
3094 println("___regCB();");
3101 * HELPER: writeDeconstructorCplusStub() writes the deconstructor of the stub class
3103 private void writeDeconstructorCplusStub(String newStubClass, boolean callbackExist, Set<String> callbackClasses) {
3105 println("~" + newStubClass + "() {");
3106 println("if (rmiCall != NULL) {");
3107 println("delete rmiCall;");
3108 println("rmiCall = NULL;");
3110 if (callbackExist) {
3111 // We assume that each class only has one callback interface for now
3112 println("if (rmiObj != NULL) {");
3113 println("delete rmiObj;");
3114 println("rmiObj = NULL;");
3116 Iterator it = callbackClasses.iterator();
3117 String callbackType = (String) it.next();
3118 println("for(" + callbackType + "* cb : vecCallbackObj) {");
3119 println("delete cb;");
3120 println("cb = NULL;");
3129 * HELPER: writeCplusMethodCallbackPermission() writes permission checks in stub for callbacks
3131 private void writeCplusMethodCallbackPermission(String intface) {
3133 println("int methodId = IoTRMIObject::getMethodId(method);");
3134 // Get all the different stubs
3135 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3136 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3137 String newIntface = intMeth.getKey();
3138 int newObjectId = getNewIntfaceObjectId(newIntface);
3139 println("if (set" + newObjectId + "Allowed.find(methodId) == set" + newObjectId + "Allowed.end()) {");
3140 println("cerr << \"Callback object for " + intface + " is not allowed to access method: \" << methodId;");
3141 println("exit(-1);");
3148 * HELPER: writeInitCallbackCplusStub() writes the initialization of callback
3150 private void writeInitCallbackCplusStub(String intface, InterfaceDecl intDecl) {
3152 println("void ___initCallBack() {");
3153 println("bool bResult = false;");
3154 println("rmiObj = new IoTRMIObject(ports[0], &bResult);");
3155 println("while (true) {");
3156 println("char* method = rmiObj->getMethodBytes();");
3157 writeCplusMethodCallbackPermission(intface);
3158 println("int objId = IoTRMIObject::getObjectId(method);");
3159 println("if (objId < vecCallbackObj.size()) { // Check if still within range");
3160 println(intface + "_CallbackSkeleton* skel = dynamic_cast<" + intface +
3161 "_CallbackSkeleton*> (vecCallbackObj.at(objId));");
3162 println("skel->invokeMethod(rmiObj);");
3165 println("cerr << \"Illegal object Id: \" << to_string(objId);");
3166 // TODO: perhaps need to change this into "throw" to make it cleaner (allow stack unfolding)
3167 println("exit(-1);");
3175 * HELPER: writeCplusInitCallbackPermission() writes the permission for callback
3177 private void writeCplusInitCallbackPermission(String intface, InterfaceDecl intDecl, boolean callbackExist) {
3179 if (callbackExist) {
3180 String method = "___initCallBack()";
3181 int methodNumId = intDecl.getHelperMethodNumId(method);
3182 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3183 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3184 String newIntface = intMeth.getKey();
3185 int newObjectId = getNewIntfaceObjectId(newIntface);
3186 println("set" + newObjectId + "Allowed.insert(" + methodNumId + ");");
3193 * HELPER: writeInitCallbackSendInfoCplusStub() writes the initialization (send info part) of callback
3195 private void writeInitCallbackSendInfoCplusStub(InterfaceDecl intDecl) {
3197 // Generate info sending part
3198 println("void ___regCB() {");
3199 println("int numParam = 3;");
3200 String method = "___initCallBack()";
3201 int methodNumId = intDecl.getHelperMethodNumId(method);
3202 println("int methodId = " + methodNumId + ";");
3203 //writeCplusCallbackPermission(intface, methodNumId);
3204 println("string retType = \"void\";");
3205 println("string paramCls[] = { \"int\", \"String\", \"int\" };");
3206 println("int rev = 0;");
3207 println("void* paramObj[] = { &ports[0], &address, &rev };");
3208 println("void* retObj = NULL;");
3209 println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retObj);");
3215 * generateCPlusStubClasses() generate stubs based on the methods list in C++
3217 public void generateCPlusStubClasses() throws IOException {
3219 // Create a new directory
3220 String path = createDirectories(dir, subdir);
3221 for (String intface : mapIntfacePTH.keySet()) {
3223 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3224 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3225 // Open a new file to write into
3226 String newIntface = intMeth.getKey();
3227 String newStubClass = newIntface + "_Stub";
3228 FileWriter fw = new FileWriter(path + "/" + newStubClass + ".hpp");
3229 pw = new PrintWriter(new BufferedWriter(fw));
3230 // Write file headers
3231 println("#ifndef _" + newStubClass.toUpperCase() + "_HPP__");
3232 println("#define _" + newStubClass.toUpperCase() + "_HPP__");
3233 println("#include <iostream>");
3234 // Find out if there are callback objects
3235 Set<String> methods = intMeth.getValue();
3236 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
3237 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
3238 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
3239 boolean callbackExist = !callbackClasses.isEmpty();
3240 if (callbackExist) // Need thread library if this has callback
3241 println("#include <thread>");
3242 println("#include \"" + newIntface + ".hpp\""); println("");
3243 println("using namespace std;"); println("");
3244 println("class " + newStubClass + " : public " + newIntface); println("{");
3245 println("private:\n");
3246 writePropertiesCplusStub(intface, newIntface, callbackExist, callbackClasses);
3247 println("public:\n");
3248 // Add default constructor and destructor
3249 println(newStubClass + "() { }"); println("");
3250 writeConstructorCplusStub(newStubClass, callbackExist, callbackClasses);
3251 writeDeconstructorCplusStub(newStubClass, callbackExist, callbackClasses);
3253 writeMethodCplusStub(methods, intDecl, callbackClasses);
3254 print("}"); println(";");
3255 if (callbackExist) {
3256 Iterator it = callbackClasses.iterator();
3257 String callbackType = (String) it.next();
3258 // Generate permission stuff for callback stubs
3259 DeclarationHandler decHandlerCallback = mapIntDeclHand.get(callbackType);
3260 InterfaceDecl intDeclCallback = (InterfaceDecl) decHandlerCallback.getInterfaceDecl(callbackType);
3261 writePermissionInitializationCplus(callbackType, newStubClass, intDeclCallback);
3263 writeObjectIdCountInitializationCplus(newStubClass, callbackExist);
3266 System.out.println("IoTCompiler: Generated stub class " + newStubClass + ".hpp...");
3273 * HELPER: writePropertiesCplusCallbackStub() writes the properties of the stub class
3275 private void writePropertiesCplusCallbackStub(String intface, String newIntface, boolean callbackExist, Set<String> callbackClasses) {
3277 println("IoTRMICall *rmiCall;");
3278 // Get the object Id
3279 println("int objectId;");
3280 if (callbackExist) {
3281 // We assume that each class only has one callback interface for now
3282 Iterator it = callbackClasses.iterator();
3283 String callbackType = (String) it.next();
3284 println("// Callback properties");
3285 println("IoTRMIObject *rmiObj;");
3286 println("vector<" + callbackType + "*> vecCallbackObj;");
3287 println("static int objIdCnt;");
3288 // TODO: Need to initialize address and ports if we want to have callback-in-callback
3289 println("string address;");
3290 println("vector<int> ports;\n");
3291 writePropertiesCplusPermission(callbackType);
3298 * HELPER: writeConstructorCplusCallbackStub() writes the constructor of the stub class
3300 private void writeConstructorCplusCallbackStub(String newStubClass, boolean callbackExist, Set<String> callbackClasses) {
3302 println(newStubClass + "(IoTRMICall* _rmiCall, int _objectId) {");
3303 println("objectId = _objectId;");
3304 println("rmiCall = _rmiCall;");
3305 if (callbackExist) {
3306 Iterator it = callbackClasses.iterator();
3307 String callbackType = (String) it.next();
3308 println("thread th1 (&" + newStubClass + "::___initCallBack, this);");
3309 println("th1.detach();");
3310 println("___regCB();");
3317 * generateCPlusCallbackStubClasses() generate callback stubs based on the methods list in C++
3319 public void generateCPlusCallbackStubClasses() throws IOException {
3321 // Create a new directory
3322 String path = createDirectories(dir, subdir);
3323 for (String intface : mapIntfacePTH.keySet()) {
3325 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3326 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3327 // Open a new file to write into
3328 String newIntface = intMeth.getKey();
3329 String newStubClass = newIntface + "_CallbackStub";
3330 FileWriter fw = new FileWriter(path + "/" + newStubClass + ".hpp");
3331 pw = new PrintWriter(new BufferedWriter(fw));
3332 // Find out if there are callback objects
3333 Set<String> methods = intMeth.getValue();
3334 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
3335 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
3336 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
3337 boolean callbackExist = !callbackClasses.isEmpty();
3338 // Write file headers
3339 println("#ifndef _" + newStubClass.toUpperCase() + "_HPP__");
3340 println("#define _" + newStubClass.toUpperCase() + "_HPP__");
3341 println("#include <iostream>");
3343 println("#include <thread>");
3344 println("#include \"" + newIntface + ".hpp\""); println("");
3345 println("using namespace std;"); println("");
3346 println("class " + newStubClass + " : public " + newIntface); println("{");
3347 println("private:\n");
3348 writePropertiesCplusCallbackStub(intface, newIntface, callbackExist, callbackClasses);
3349 println("public:\n");
3350 // Add default constructor and destructor
3351 println(newStubClass + "() { }"); println("");
3352 writeConstructorCplusCallbackStub(newStubClass, callbackExist, callbackClasses);
3353 writeDeconstructorCplusStub(newStubClass, callbackExist, callbackClasses);
3355 writeMethodCplusStub(methods, intDecl, callbackClasses);
3357 if (callbackExist) {
3358 Iterator it = callbackClasses.iterator();
3359 String callbackType = (String) it.next();
3360 // Generate permission stuff for callback stubs
3361 DeclarationHandler decHandlerCallback = mapIntDeclHand.get(callbackType);
3362 InterfaceDecl intDeclCallback = (InterfaceDecl) decHandlerCallback.getInterfaceDecl(callbackType);
3363 writePermissionInitializationCplus(callbackType, newStubClass, intDeclCallback);
3365 writeObjectIdCountInitializationCplus(newStubClass, callbackExist);
3368 System.out.println("IoTCompiler: Generated callback stub class " + newIntface + ".hpp...");
3375 * HELPER: writePropertiesCplusSkeleton() writes the properties of the skeleton class
3377 private void writePropertiesCplusSkeleton(String intface, boolean callbackExist, Set<String> callbackClasses) {
3379 println(intface + " *mainObj;");
3381 if (callbackExist) {
3382 Iterator it = callbackClasses.iterator();
3383 String callbackType = (String) it.next();
3384 String exchangeType = checkAndGetParamClass(callbackType);
3385 println("// Callback properties");
3386 println("static int objIdCnt;");
3387 println("vector<" + exchangeType + "*> vecCallbackObj;");
3388 println("IoTRMICall *rmiCall;");
3390 println("IoTRMIObject *rmiObj;\n");
3391 // Keep track of object Ids of all stubs registered to this interface
3392 writePropertiesCplusPermission(intface);
3398 * HELPER: writeObjectIdCountInitializationCplus() writes the initialization of objIdCnt variable
3400 private void writeObjectIdCountInitializationCplus(String newSkelClass, boolean callbackExist) {
3403 println("int " + newSkelClass + "::objIdCnt = 0;");
3408 * HELPER: writePermissionInitializationCplus() writes the initialization of permission set
3410 private void writePermissionInitializationCplus(String intface, String newSkelClass, InterfaceDecl intDecl) {
3412 // Keep track of object Ids of all stubs registered to this interface
3413 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3414 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3415 String newIntface = intMeth.getKey();
3416 int newObjectId = getNewIntfaceObjectId(newIntface);
3417 print("set<int> " + newSkelClass + "::set" + newObjectId + "Allowed { ");
3418 Set<String> methodIds = intMeth.getValue();
3420 for (String methodId : methodIds) {
3421 int methodNumId = intDecl.getMethodNumId(methodId);
3422 print(Integer.toString(methodNumId));
3423 // Check if this is the last element (don't print a comma)
3424 if (i != methodIds.size() - 1) {
3435 * HELPER: writeStructPermissionCplusSkeleton() writes permission for struct helper
3437 private void writeStructPermissionCplusSkeleton(Collection<String> methods, InterfaceDecl intDecl, String intface) {
3439 // Use this set to handle two same methodIds
3440 for (String method : methods) {
3441 List<String> methParams = intDecl.getMethodParams(method);
3442 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
3443 // Check for params with structs
3444 for (int i = 0; i < methParams.size(); i++) {
3445 String paramType = methPrmTypes.get(i);
3446 String param = methParams.get(i);
3447 String simpleType = getGenericType(paramType);
3448 if (isStructClass(simpleType)) {
3449 int methodNumId = intDecl.getMethodNumId(method);
3450 String helperMethod = methodNumId + "struct" + i;
3451 int helperMethodNumId = intDecl.getHelperMethodNumId(helperMethod);
3452 // Iterate over interfaces to give permissions to
3453 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3454 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3455 String newIntface = intMeth.getKey();
3456 int newObjectId = getNewIntfaceObjectId(newIntface);
3457 println("set" + newObjectId + "Allowed.insert(" + helperMethodNumId + ");");
3466 * HELPER: writeConstructorCplusSkeleton() writes the constructor of the skeleton class
3468 private void writeConstructorCplusSkeleton(String newSkelClass, String intface, boolean callbackExist, InterfaceDecl intDecl, Collection<String> methods) {
3470 println(newSkelClass + "(" + intface + " *_mainObj, int _port) {");
3471 println("bool _bResult = false;");
3472 println("mainObj = _mainObj;");
3473 println("rmiObj = new IoTRMIObject(_port, &_bResult);");
3474 writeCplusInitCallbackPermission(intface, intDecl, callbackExist);
3475 writeStructPermissionCplusSkeleton(methods, intDecl, intface);
3476 println("___waitRequestInvokeMethod();");
3482 * HELPER: writeDeconstructorCplusSkeleton() writes the deconstructor of the skeleton class
3484 private void writeDeconstructorCplusSkeleton(String newSkelClass, boolean callbackExist, Set<String> callbackClasses) {
3486 println("~" + newSkelClass + "() {");
3487 println("if (rmiObj != NULL) {");
3488 println("delete rmiObj;");
3489 println("rmiObj = NULL;");
3491 if (callbackExist) {
3492 // We assume that each class only has one callback interface for now
3493 println("if (rmiCall != NULL) {");
3494 println("delete rmiCall;");
3495 println("rmiCall = NULL;");
3497 Iterator it = callbackClasses.iterator();
3498 String callbackType = (String) it.next();
3499 String exchangeType = checkAndGetParamClass(callbackType);
3500 println("for(" + exchangeType + "* cb : vecCallbackObj) {");
3501 println("delete cb;");
3502 println("cb = NULL;");
3511 * HELPER: writeStdMethodBodyCplusSkeleton() writes the standard method body in the skeleton class
3513 private void writeStdMethodBodyCplusSkeleton(List<String> methParams, String methodId, String methodType) {
3515 if (methodType.equals("void"))
3516 print("mainObj->" + methodId + "(");
3518 print("return mainObj->" + methodId + "(");
3519 for (int i = 0; i < methParams.size(); i++) {
3521 print(getSimpleIdentifier(methParams.get(i)));
3522 // Check if this is the last element (don't print a comma)
3523 if (i != methParams.size() - 1) {
3532 * HELPER: writeInitCallbackCplusSkeleton() writes the init callback method for skeleton class
3534 private void writeInitCallbackCplusSkeleton(boolean callbackSkeleton) {
3536 // This is a callback skeleton generation
3537 if (callbackSkeleton)
3538 println("void ___regCB(IoTRMIObject* rmiObj) {");
3540 println("void ___regCB() {");
3541 println("int numParam = 3;");
3542 println("int param1 = 0;");
3543 println("string param2 = \"\";");
3544 println("int param3 = 0;");
3545 println("string paramCls[] = { \"int\", \"String\", \"int\" };");
3546 println("void* paramObj[] = { ¶m1, ¶m2, ¶m3 };");
3547 println("rmiObj->getMethodParams(paramCls, numParam, paramObj);");
3548 println("bool bResult = false;");
3549 println("rmiCall = new IoTRMICall(param1, param2.c_str(), param3, &bResult);");
3555 * HELPER: writeMethodCplusSkeleton() writes the method of the skeleton class
3557 private void writeMethodCplusSkeleton(Collection<String> methods, InterfaceDecl intDecl,
3558 Set<String> callbackClasses, boolean callbackSkeleton) {
3560 boolean isDefined = false;
3561 for (String method : methods) {
3563 List<String> methParams = intDecl.getMethodParams(method);
3564 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
3565 String methodId = intDecl.getMethodId(method);
3566 String methodType = checkAndGetCplusType(intDecl.getMethodType(method));
3567 print(methodType + " " + methodId + "(");
3568 boolean isCallbackMethod = false;
3569 String callbackType = null;
3570 for (int i = 0; i < methParams.size(); i++) {
3572 String origParamType = methPrmTypes.get(i);
3573 if (callbackClasses.contains(origParamType)) { // Check if this has callback object
3574 isCallbackMethod = true;
3575 callbackType = origParamType;
3577 String paramType = checkAndGetParamClass(methPrmTypes.get(i));
3578 String methPrmType = checkAndGetCplusType(paramType);
3579 String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i));
3580 print(methParamComplete);
3581 // Check if this is the last element (don't print a comma)
3582 if (i != methParams.size() - 1) {
3587 // Now, write the body of skeleton!
3588 writeStdMethodBodyCplusSkeleton(methParams, methodId, intDecl.getMethodType(method));
3590 if (isCallbackMethod && !isDefined) {
3591 writeInitCallbackCplusSkeleton(callbackSkeleton);
3599 * HELPER: writeCallbackCplusNumStubs() writes the numStubs variable
3601 private void writeCallbackCplusNumStubs(List<String> methParams, List<String> methPrmTypes, String callbackType) {
3603 for (int i = 0; i < methParams.size(); i++) {
3604 String paramType = methPrmTypes.get(i);
3605 String param = methParams.get(i);
3606 //if (callbackType.equals(paramType)) {
3607 if (checkCallbackType(paramType, callbackType)) // Check if this has callback object
3608 println("int numStubs" + i + " = 0;");
3614 * HELPER: writeCallbackCplusStubGeneration() writes the callback stub generation part
3616 private void writeCallbackCplusStubGeneration(List<String> methParams, List<String> methPrmTypes, String callbackType) {
3618 // Iterate over callback objects
3619 for (int i = 0; i < methParams.size(); i++) {
3620 String paramType = methPrmTypes.get(i);
3621 String param = methParams.get(i);
3622 // Generate a loop if needed
3623 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
3624 String exchParamType = checkAndGetParamClass(getGenericType(paramType));
3625 if (isArrayOrList(paramType, param)) {
3626 println("vector<" + exchParamType + "*> stub" + i + ";");
3627 println("for (int objId = 0; objId < numStubs" + i + "; objId++) {");
3628 println(exchParamType + "* cb" + i + " = new " + exchParamType + "_CallbackStub(rmiCall, objIdCnt);");
3629 println("stub" + i + ".push_back(cb" + i + ");");
3630 println("vecCallbackObj.push_back(cb" + i + ");");
3631 println("objIdCnt++;");
3634 println(exchParamType + "* stub" + i + " = new " + exchParamType + "_CallbackStub(rmiCall, objIdCnt);");
3635 println("vecCallbackObj.push_back(stub" + i + ");");
3636 println("objIdCnt++;");
3644 * HELPER: checkAndWriteEnumTypeCplusSkeleton() writes the enum type (convert from enum to int)
3646 private void checkAndWriteEnumTypeCplusSkeleton(List<String> methParams, List<String> methPrmTypes) {
3648 // Iterate and find enum declarations
3649 for (int i = 0; i < methParams.size(); i++) {
3650 String paramType = methPrmTypes.get(i);
3651 String param = methParams.get(i);
3652 String simpleType = getGenericType(paramType);
3653 if (isEnumClass(simpleType)) {
3654 // Check if this is enum type
3655 if (isArrayOrList(paramType, param)) { // An array
3656 println("int len" + i + " = paramEnumInt" + i + ".size();");
3657 println("vector<" + simpleType + "> paramEnum" + i + "(len" + i + ");");
3658 println("for (int i=0; i < len" + i + "; i++) {");
3659 println("paramEnum" + i + "[i] = (" + simpleType + ") paramEnumInt" + i + "[i];");
3661 } else { // Just one element
3662 println(simpleType + " paramEnum" + i + ";");
3663 println("paramEnum" + i + " = (" + simpleType + ") paramEnumInt" + i + "[0];");
3671 * HELPER: checkAndWriteEnumRetTypeCplusSkeleton() writes the enum return type (convert from enum to int)
3673 private void checkAndWriteEnumRetTypeCplusSkeleton(String retType) {
3675 // Strips off array "[]" for return type
3676 String pureType = getSimpleArrayType(getGenericType(retType));
3677 // Take the inner type of generic
3678 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
3679 pureType = getGenericType(retType);
3680 if (isEnumClass(pureType)) {
3681 // Check if this is enum type
3683 if (isArrayOrList(retType, retType)) { // An array
3684 println("int retLen = retEnum.size();");
3685 println("vector<int> retEnumInt(retLen);");
3686 println("for (int i=0; i < retLen; i++) {");
3687 println("retEnumInt[i] = (int) retEnum[i];");
3689 } else { // Just one element
3690 println("vector<int> retEnumInt(1);");
3691 println("retEnumInt[0] = (int) retEnum;");
3698 * HELPER: writeMethodHelperReturnCplusSkeleton() writes the return statement part in skeleton
3700 private void writeMethodInputParameters(List<String> methParams, List<String> methPrmTypes,
3701 Set<String> callbackClasses, String methodId) {
3703 print(methodId + "(");
3704 for (int i = 0; i < methParams.size(); i++) {
3705 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
3706 if (callbackClasses.contains(paramType))
3708 else if (isEnumClass(getGenericType(paramType))) // Check if this is enum type
3709 print("paramEnum" + i);
3710 else if (isStructClass(getGenericType(paramType))) // Struct type
3711 print("paramStruct" + i);
3713 print(getSimpleIdentifier(methParams.get(i)));
3714 if (i != methParams.size() - 1) {
3723 * HELPER: writeMethodHelperReturnCplusSkeleton() writes the return statement part in skeleton
3725 private void writeMethodHelperReturnCplusSkeleton(InterfaceDecl intDecl, List<String> methParams,
3726 List<String> methPrmTypes, String method, boolean isCallbackMethod, String callbackType,
3727 String methodId, Set<String> callbackClasses) {
3729 println("rmiObj->getMethodParams(paramCls, numParam, paramObj);");
3730 if (isCallbackMethod)
3731 writeCallbackCplusStubGeneration(methParams, methPrmTypes, callbackType);
3732 checkAndWriteEnumTypeCplusSkeleton(methParams, methPrmTypes);
3733 writeStructMembersInitCplusSkeleton(intDecl, methParams, methPrmTypes, method);
3734 // Check if this is "void"
3735 String retType = intDecl.getMethodType(method);
3736 // Check if this is "void"
3737 if (retType.equals("void")) {
3738 writeMethodInputParameters(methParams, methPrmTypes, callbackClasses, methodId);
3739 } else { // We do have a return value
3740 if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) // Enum type
3741 print(checkAndGetCplusType(retType) + " retEnum = ");
3742 else if (isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type
3743 print(checkAndGetCplusType(retType) + " retStruct = ");
3745 print(checkAndGetCplusType(retType) + " retVal = ");
3746 writeMethodInputParameters(methParams, methPrmTypes, callbackClasses, methodId);
3747 checkAndWriteEnumRetTypeCplusSkeleton(retType);
3748 if (isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type
3749 writeStructReturnCplusSkeleton(getSimpleArrayType(getGenericType(retType)), retType);
3750 if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) // Enum type
3751 println("void* retObj = &retEnumInt;");
3753 if (!isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type
3754 println("void* retObj = &retVal;");
3755 String retTypeC = checkAndGetCplusType(retType);
3756 if (isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type
3757 println("rmiObj->sendReturnObj(retObj, retCls, numRetObj);");
3759 println("rmiObj->sendReturnObj(retObj, \"" + checkAndGetCplusRetClsType(getEnumType(retType)) + "\");");
3765 * HELPER: writeStdMethodHelperBodyCplusSkeleton() writes the standard method body helper in the skeleton class
3767 private void writeStdMethodHelperBodyCplusSkeleton(InterfaceDecl intDecl, List<String> methParams,
3768 List<String> methPrmTypes, String method, String methodId, Set<String> callbackClasses) {
3770 // Generate array of parameter types
3771 boolean isCallbackMethod = false;
3772 String callbackType = null;
3773 print("string paramCls[] = { ");
3774 for (int i = 0; i < methParams.size(); i++) {
3775 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
3776 if (callbackClasses.contains(paramType)) {
3777 isCallbackMethod = true;
3778 callbackType = paramType;
3780 } else { // Generate normal classes if it's not a callback object
3781 String paramTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i));
3782 print("\"" + paramTypeC + "\"");
3784 if (i != methParams.size() - 1) {
3789 println("int numParam = " + methParams.size() + ";");
3790 if (isCallbackMethod)
3791 writeCallbackCplusNumStubs(methParams, methPrmTypes, callbackType);
3792 // Generate parameters
3793 for (int i = 0; i < methParams.size(); i++) {
3794 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
3795 if (!callbackClasses.contains(paramType)) {
3796 String methParamType = methPrmTypes.get(i);
3797 if (isEnumClass(getSimpleArrayType(getGenericType(methParamType)))) {
3798 // Check if this is enum type
3799 println("vector<int> paramEnumInt" + i + ";");
3801 String methPrmType = checkAndGetCplusType(methParamType);
3802 String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i));
3803 println(methParamComplete + ";");
3807 // Generate array of parameter objects
3808 print("void* paramObj[] = { ");
3809 for (int i = 0; i < methParams.size(); i++) {
3810 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
3811 if (callbackClasses.contains(paramType))
3812 print("&numStubs" + i);
3813 else if (isEnumClass(getGenericType(paramType))) // Check if this is enum type
3814 print("¶mEnumInt" + i);
3816 print("&" + getSimpleIdentifier(methParams.get(i)));
3817 if (i != methParams.size() - 1) {
3822 // Write the return value part
3823 writeMethodHelperReturnCplusSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod,
3824 callbackType, methodId, callbackClasses);
3829 * HELPER: writeStructMembersCplusSkeleton() writes member parameters of struct
3831 private void writeStructMembersCplusSkeleton(String simpleType, String paramType,
3832 String param, String method, InterfaceDecl intDecl, int iVar) {
3834 // Get the struct declaration for this struct and generate initialization code
3835 StructDecl structDecl = getStructDecl(simpleType);
3836 List<String> memTypes = structDecl.getMemberTypes(simpleType);
3837 List<String> members = structDecl.getMembers(simpleType);
3838 int methodNumId = intDecl.getMethodNumId(method);
3839 String counter = "struct" + methodNumId + "Size" + iVar;
3840 println("int pos = 0;");
3842 if (isArrayOrList(paramType, param)) { // An array or list
3843 for (int i = 0; i < members.size(); i++) {
3844 String prmTypeC = checkAndGetCplusType(memTypes.get(i));
3845 String prmType = checkAndGetCplusArrayType(prmTypeC, members.get(i));
3846 println(getSimpleType(getEnumType(prmType)) + " param" + i + "[" + counter + "];");
3848 } else { // Just one struct element
3849 for (int i = 0; i < members.size(); i++) {
3850 String prmTypeC = checkAndGetCplusType(memTypes.get(i));
3851 String prmType = checkAndGetCplusArrayType(prmTypeC, members.get(i));
3852 println(getSimpleType(getEnumType(prmType)) + " param" + i + ";");
3855 if (isArrayOrList(paramType, param)) { // An array or list
3856 println("for(int i = 0; i < " + counter + "; i++) {");
3858 if (isArrayOrList(paramType, param)) { // An array or list
3859 for (int i = 0; i < members.size(); i++) {
3860 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
3861 println("paramCls[pos] = \"" + prmTypeC + "\";");
3862 println("paramObj[pos++] = ¶m" + i + "[i];");
3865 } else { // Just one struct element
3866 for (int i = 0; i < members.size(); i++) {
3867 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
3868 println("paramCls[pos] = \"" + prmTypeC + "\";");
3869 println("paramObj[pos++] = ¶m" + i + ";");
3876 * HELPER: writeStructMembersInitCplusSkeleton() writes member parameters initialization of struct
3878 private void writeStructMembersInitCplusSkeleton(InterfaceDecl intDecl, List<String> methParams,
3879 List<String> methPrmTypes, String method) {
3881 for (int i = 0; i < methParams.size(); i++) {
3882 String paramType = methPrmTypes.get(i);
3883 String param = methParams.get(i);
3884 String simpleType = getGenericType(paramType);
3885 if (isStructClass(simpleType)) {
3886 int methodNumId = intDecl.getMethodNumId(method);
3887 String counter = "struct" + methodNumId + "Size" + i;
3889 if (isArrayOrList(paramType, param)) { // An array or list
3890 println("vector<" + simpleType + "> paramStruct" + i + "(" + counter + ");");
3892 println(simpleType + " paramStruct" + i + ";");
3893 // Initialize members
3894 StructDecl structDecl = getStructDecl(simpleType);
3895 List<String> members = structDecl.getMembers(simpleType);
3896 List<String> memTypes = structDecl.getMemberTypes(simpleType);
3897 if (isArrayOrList(paramType, param)) { // An array or list
3898 println("for(int i = 0; i < " + counter + "; i++) {");
3899 for (int j = 0; j < members.size(); j++) {
3900 print("paramStruct" + i + "[i]." + getSimpleIdentifier(members.get(j)));
3901 println(" = param" + j + "[i];");
3904 } else { // Just one struct element
3905 for (int j = 0; j < members.size(); j++) {
3906 print("paramStruct" + i + "." + getSimpleIdentifier(members.get(j)));
3907 println(" = param" + j + ";");
3916 * HELPER: writeStructReturnCplusSkeleton() writes parameters of struct for return statement
3918 private void writeStructReturnCplusSkeleton(String simpleType, String retType) {
3920 // Minimum retLen is 1 if this is a single struct object
3921 if (isArrayOrList(retType, retType))
3922 println("int retLen = retStruct.size();");
3923 else // Just single struct object
3924 println("int retLen = 1;");
3925 println("void* retLenObj = &retLen;");
3926 println("rmiObj->sendReturnObj(retLenObj, \"int\");");
3927 int numMem = getNumOfMembers(simpleType);
3928 println("int numRetObj = " + numMem + "*retLen;");
3929 println("string retCls[numRetObj];");
3930 println("void* retObj[numRetObj];");
3931 println("int retPos = 0;");
3932 // Get the struct declaration for this struct and generate initialization code
3933 StructDecl structDecl = getStructDecl(simpleType);
3934 List<String> memTypes = structDecl.getMemberTypes(simpleType);
3935 List<String> members = structDecl.getMembers(simpleType);
3936 if (isArrayOrList(retType, retType)) { // An array or list
3937 println("for(int i = 0; i < retLen; i++) {");
3938 for (int i = 0; i < members.size(); i++) {
3939 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
3940 println("retCls[retPos] = \"" + prmTypeC + "\";");
3941 print("retObj[retPos++] = &retStruct[i].");
3942 print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i));
3946 } else { // Just one struct element
3947 for (int i = 0; i < members.size(); i++) {
3948 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
3949 println("retCls[retPos] = \"" + prmTypeC + "\";");
3950 print("retObj[retPos++] = &retStruct.");
3951 print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i));
3960 * HELPER: writeMethodHelperStructCplusSkeleton() writes the struct in skeleton
3962 private void writeMethodHelperStructCplusSkeleton(InterfaceDecl intDecl, List<String> methParams,
3963 List<String> methPrmTypes, String method, String methodId, Set<String> callbackClasses) {
3965 // Generate array of parameter objects
3966 boolean isCallbackMethod = false;
3967 String callbackType = null;
3968 print("int numParam = ");
3969 writeLengthStructParamClassSkeleton(methParams, methPrmTypes, method, intDecl);
3971 println("string paramCls[numParam];");
3972 println("void* paramObj[numParam];");
3973 // Iterate again over the parameters
3974 for (int i = 0; i < methParams.size(); i++) {
3975 String paramType = methPrmTypes.get(i);
3976 String param = methParams.get(i);
3977 String simpleType = getGenericType(paramType);
3978 if (isStructClass(simpleType)) {
3979 writeStructMembersCplusSkeleton(simpleType, paramType, param, method, intDecl, i);
3981 String prmType = returnGenericCallbackType(methPrmTypes.get(i));
3982 if (callbackClasses.contains(prmType)) {
3983 isCallbackMethod = true;
3984 callbackType = paramType;
3985 writeCallbackCplusNumStubs(methParams, methPrmTypes, callbackType);
3986 println("paramCls[pos] = \"int\";");
3987 println("paramObj[pos++] = &numStubs" + i + ";");
3988 } else { // Generate normal classes if it's not a callback object
3989 String paramTypeC = checkAndGetCplusType(methPrmTypes.get(i));
3990 if (isEnumClass(getGenericType(paramTypeC))) { // Check if this is enum type
3991 println("vector<int> paramEnumInt" + i + ";");
3993 String methParamComplete = checkAndGetCplusArray(paramTypeC, methParams.get(i));
3994 println(methParamComplete + ";");
3996 String prmTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i));
3997 println("paramCls[pos] = \"" + prmTypeC + "\";");
3998 if (isEnumClass(getGenericType(paramType))) // Check if this is enum type
3999 println("paramObj[pos++] = ¶mEnumInt" + i);
4001 println("paramObj[pos++] = &" + getSimpleIdentifier(methParams.get(i)) + ";");
4005 // Write the return value part
4006 writeMethodHelperReturnCplusSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod,
4007 callbackType, methodId, callbackClasses);
4012 * HELPER: writeMethodHelperCplusSkeleton() writes the method helper of the skeleton class
4014 private void writeMethodHelperCplusSkeleton(Collection<String> methods, InterfaceDecl intDecl, Set<String> callbackClasses) {
4016 // Use this set to handle two same methodIds
4017 Set<String> uniqueMethodIds = new HashSet<String>();
4018 for (String method : methods) {
4020 List<String> methParams = intDecl.getMethodParams(method);
4021 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4022 if (isStructPresent(methParams, methPrmTypes)) { // Treat struct differently
4023 String methodId = intDecl.getMethodId(method);
4025 String helperMethod = methodId;
4026 if (uniqueMethodIds.contains(methodId))
4027 helperMethod = helperMethod + intDecl.getMethodNumId(method);
4029 uniqueMethodIds.add(methodId);
4030 String retType = intDecl.getMethodType(method);
4031 print(helperMethod + "(");
4032 boolean begin = true;
4033 for (int i = 0; i < methParams.size(); i++) { // Print size variables
4034 String paramType = methPrmTypes.get(i);
4035 String param = methParams.get(i);
4036 String simpleType = getGenericType(paramType);
4037 if (isStructClass(simpleType)) {
4038 if (!begin) { // Generate comma for not the beginning variable
4039 print(", "); begin = false;
4041 int methodNumId = intDecl.getMethodNumId(method);
4042 print("int struct" + methodNumId + "Size" + i);
4046 writeMethodHelperStructCplusSkeleton(intDecl, methParams, methPrmTypes, method, methodId, callbackClasses);
4049 String methodId = intDecl.getMethodId(method);
4051 String helperMethod = methodId;
4052 if (uniqueMethodIds.contains(methodId))
4053 helperMethod = helperMethod + intDecl.getMethodNumId(method);
4055 uniqueMethodIds.add(methodId);
4056 // Check if this is "void"
4057 String retType = intDecl.getMethodType(method);
4058 println(helperMethod + "() {");
4059 // Now, write the helper body of skeleton!
4060 writeStdMethodHelperBodyCplusSkeleton(intDecl, methParams, methPrmTypes, method, methodId, callbackClasses);
4064 // Write method helper for structs
4065 writeMethodHelperStructSetupCplusSkeleton(methods, intDecl);
4070 * HELPER: writeMethodHelperStructSetupCplusSkeleton() writes the method helper of struct in skeleton class
4072 private void writeMethodHelperStructSetupCplusSkeleton(Collection<String> methods,
4073 InterfaceDecl intDecl) {
4075 // Use this set to handle two same methodIds
4076 for (String method : methods) {
4078 List<String> methParams = intDecl.getMethodParams(method);
4079 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4080 // Check for params with structs
4081 for (int i = 0; i < methParams.size(); i++) {
4082 String paramType = methPrmTypes.get(i);
4083 String param = methParams.get(i);
4084 String simpleType = getGenericType(paramType);
4085 if (isStructClass(simpleType)) {
4086 int methodNumId = intDecl.getMethodNumId(method);
4088 String helperMethod = methodNumId + "struct" + i;
4089 println(helperMethod + "() {");
4090 // Now, write the helper body of skeleton!
4091 println("string paramCls[] = { \"int\" };");
4092 println("int numParam = 1;");
4093 println("int param0 = 0;");
4094 println("void* paramObj[] = { ¶m0 };");
4095 println("rmiObj->getMethodParams(paramCls, numParam, paramObj);");
4096 println("return param0;");
4105 * HELPER: writeMethodHelperStructSetupCplusCallbackSkeleton() writes the method helper of struct in skeleton class
4107 private void writeMethodHelperStructSetupCplusCallbackSkeleton(Collection<String> methods,
4108 InterfaceDecl intDecl) {
4110 // Use this set to handle two same methodIds
4111 for (String method : methods) {
4113 List<String> methParams = intDecl.getMethodParams(method);
4114 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4115 // Check for params with structs
4116 for (int i = 0; i < methParams.size(); i++) {
4117 String paramType = methPrmTypes.get(i);
4118 String param = methParams.get(i);
4119 String simpleType = getGenericType(paramType);
4120 if (isStructClass(simpleType)) {
4121 int methodNumId = intDecl.getMethodNumId(method);
4123 String helperMethod = methodNumId + "struct" + i;
4124 println(helperMethod + "(IoTRMIObject* rmiObj) {");
4125 // Now, write the helper body of skeleton!
4126 println("string paramCls[] = { \"int\" };");
4127 println("int numParam = 1;");
4128 println("int param0 = 0;");
4129 println("void* paramObj[] = { ¶m0 };");
4130 println("rmiObj->getMethodParams(paramCls, numParam, paramObj);");
4131 println("return param0;");
4140 * HELPER: writeCplusMethodPermission() writes permission checks in skeleton
4142 private void writeCplusMethodPermission(String intface) {
4144 // Get all the different stubs
4145 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
4146 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
4147 String newIntface = intMeth.getKey();
4148 int newObjectId = getNewIntfaceObjectId(newIntface);
4149 println("if (_objectId == object" + newObjectId + "Id) {");
4150 println("if (set" + newObjectId + "Allowed.find(methodId) == set" + newObjectId + "Allowed.end()) {");
4151 println("cerr << \"Object with object Id: \" << _objectId << \" is not allowed to access method: \" << methodId << endl;");
4152 println("exit(-1);");
4156 println("cerr << \"Object Id: \" << _objectId << \" not recognized!\" << endl;");
4157 println("exit(-1);");
4164 * HELPER: writeCplusWaitRequestInvokeMethod() writes the main loop of the skeleton class
4166 private void writeCplusWaitRequestInvokeMethod(Collection<String> methods, InterfaceDecl intDecl, boolean callbackExist, String intface) {
4168 // Use this set to handle two same methodIds
4169 Set<String> uniqueMethodIds = new HashSet<String>();
4170 println("void ___waitRequestInvokeMethod() {");
4171 // Write variables here if we have callbacks or enums or structs
4172 writeCountVarStructSkeleton(methods, intDecl);
4173 println("while (true) {");
4174 println("rmiObj->getMethodBytes();");
4175 println("int _objectId = rmiObj->getObjectId();");
4176 println("int methodId = rmiObj->getMethodId();");
4177 // Generate permission check
4178 writeCplusMethodPermission(intface);
4179 println("switch (methodId) {");
4180 // Print methods and method Ids
4181 for (String method : methods) {
4182 String methodId = intDecl.getMethodId(method);
4183 int methodNumId = intDecl.getMethodNumId(method);
4184 print("case " + methodNumId + ": ___");
4185 String helperMethod = methodId;
4186 if (uniqueMethodIds.contains(methodId))
4187 helperMethod = helperMethod + methodNumId;
4189 uniqueMethodIds.add(methodId);
4190 print(helperMethod + "(");
4191 writeInputCountVarStructSkeleton(method, intDecl);
4192 println("); break;");
4194 String method = "___initCallBack()";
4195 // Print case -9999 (callback handler) if callback exists
4196 if (callbackExist) {
4197 int methodId = intDecl.getHelperMethodNumId(method);
4198 println("case " + methodId + ": ___regCB(); break;");
4200 writeMethodCallStructSkeleton(methods, intDecl);
4201 println("default: ");
4202 println("cerr << \"Method Id \" << methodId << \" not recognized!\" << endl;");
4203 println("throw exception();");
4211 * generateCplusSkeletonClass() generate skeletons based on the methods list in C++
4213 public void generateCplusSkeletonClass() throws IOException {
4215 // Create a new directory
4216 String path = createDirectories(dir, subdir);
4217 for (String intface : mapIntfacePTH.keySet()) {
4218 // Open a new file to write into
4219 String newSkelClass = intface + "_Skeleton";
4220 FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".hpp");
4221 pw = new PrintWriter(new BufferedWriter(fw));
4222 // Write file headers
4223 println("#ifndef _" + newSkelClass.toUpperCase() + "_HPP__");
4224 println("#define _" + newSkelClass.toUpperCase() + "_HPP__");
4225 println("#include <iostream>");
4226 println("#include \"" + intface + ".hpp\"\n");
4227 // Pass in set of methods and get import classes
4228 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4229 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
4230 List<String> methods = intDecl.getMethods();
4231 Set<String> includeClasses = getIncludeClasses(methods, intDecl, intface, true);
4232 List<String> stdIncludeClasses = getStandardCplusIncludeClasses();
4233 List<String> allIncludeClasses = getAllLibClasses(stdIncludeClasses, includeClasses);
4234 printIncludeStatements(allIncludeClasses); println("");
4235 println("using namespace std;\n");
4236 // Find out if there are callback objects
4237 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
4238 boolean callbackExist = !callbackClasses.isEmpty();
4239 // Write class header
4240 println("class " + newSkelClass + " : public " + intface); println("{");
4241 println("private:\n");
4243 writePropertiesCplusSkeleton(intface, callbackExist, callbackClasses);
4244 println("public:\n");
4245 // Write constructor
4246 writeConstructorCplusSkeleton(newSkelClass, intface, callbackExist, intDecl, methods);
4247 // Write deconstructor
4248 writeDeconstructorCplusSkeleton(newSkelClass, callbackExist, callbackClasses);
4250 writeMethodCplusSkeleton(methods, intDecl, callbackClasses, false);
4251 // Write method helper
4252 writeMethodHelperCplusSkeleton(methods, intDecl, callbackClasses);
4253 // Write waitRequestInvokeMethod() - main loop
4254 writeCplusWaitRequestInvokeMethod(methods, intDecl, callbackExist, intface);
4256 writePermissionInitializationCplus(intface, newSkelClass, intDecl);
4257 writeObjectIdCountInitializationCplus(newSkelClass, callbackExist);
4260 System.out.println("IoTCompiler: Generated skeleton class " + newSkelClass + ".hpp...");
4266 * HELPER: writePropertiesCplusCallbackSkeleton() writes the properties of the callback skeleton class
4268 private void writePropertiesCplusCallbackSkeleton(String intface, boolean callbackExist, Set<String> callbackClasses) {
4270 println(intface + " *mainObj;");
4271 // Keep track of object Ids of all stubs registered to this interface
4272 println("int objectId;");
4274 if (callbackExist) {
4275 Iterator it = callbackClasses.iterator();
4276 String callbackType = (String) it.next();
4277 String exchangeType = checkAndGetParamClass(callbackType);
4278 println("// Callback properties");
4279 println("IoTRMICall* rmiCall;");
4280 println("vector<" + exchangeType + "*> vecCallbackObj;");
4281 println("static int objIdCnt;");
4288 * HELPER: writeConstructorCplusCallbackSkeleton() writes the constructor of the skeleton class
4290 private void writeConstructorCplusCallbackSkeleton(String newSkelClass, String intface, boolean callbackExist, InterfaceDecl intDecl, Collection<String> methods) {
4292 println(newSkelClass + "(" + intface + " *_mainObj, int _objectId) {");
4293 println("mainObj = _mainObj;");
4294 println("objectId = _objectId;");
4300 * HELPER: writeDeconstructorCplusStub() writes the deconstructor of the stub class
4302 private void writeDeconstructorCplusCallbackSkeleton(String newStubClass, boolean callbackExist,
4303 Set<String> callbackClasses) {
4305 println("~" + newStubClass + "() {");
4306 if (callbackExist) {
4307 // We assume that each class only has one callback interface for now
4308 println("if (rmiCall != NULL) {");
4309 println("delete rmiCall;");
4310 println("rmiCall = NULL;");
4312 Iterator it = callbackClasses.iterator();
4313 String callbackType = (String) it.next();
4314 String exchangeType = checkAndGetParamClass(callbackType);
4315 println("for(" + exchangeType + "* cb : vecCallbackObj) {");
4316 println("delete cb;");
4317 println("cb = NULL;");
4326 * HELPER: writeMethodHelperCplusCallbackSkeleton() writes the method helper of callback skeleton class
4328 private void writeMethodHelperCplusCallbackSkeleton(Collection<String> methods, InterfaceDecl intDecl,
4329 Set<String> callbackClasses) {
4331 // Use this set to handle two same methodIds
4332 Set<String> uniqueMethodIds = new HashSet<String>();
4333 for (String method : methods) {
4335 List<String> methParams = intDecl.getMethodParams(method);
4336 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4337 if (isStructPresent(methParams, methPrmTypes)) { // Treat struct differently
4338 String methodId = intDecl.getMethodId(method);
4340 String helperMethod = methodId;
4341 if (uniqueMethodIds.contains(methodId))
4342 helperMethod = helperMethod + intDecl.getMethodNumId(method);
4344 uniqueMethodIds.add(methodId);
4345 String retType = intDecl.getMethodType(method);
4346 print(helperMethod + "(");
4347 boolean begin = true;
4348 for (int i = 0; i < methParams.size(); i++) { // Print size variables
4349 String paramType = methPrmTypes.get(i);
4350 String param = methParams.get(i);
4351 String simpleType = getGenericType(paramType);
4352 if (isStructClass(simpleType)) {
4353 if (!begin) { // Generate comma for not the beginning variable
4354 print(", "); begin = false;
4356 int methodNumId = intDecl.getMethodNumId(method);
4357 print("int struct" + methodNumId + "Size" + i);
4360 println(", IoTRMIObject* rmiObj) {");
4361 writeMethodHelperStructCplusSkeleton(intDecl, methParams, methPrmTypes, method, methodId, callbackClasses);
4364 String methodId = intDecl.getMethodId(method);
4366 String helperMethod = methodId;
4367 if (uniqueMethodIds.contains(methodId))
4368 helperMethod = helperMethod + intDecl.getMethodNumId(method);
4370 uniqueMethodIds.add(methodId);
4371 // Check if this is "void"
4372 String retType = intDecl.getMethodType(method);
4373 println(helperMethod + "(IoTRMIObject* rmiObj) {");
4374 // Now, write the helper body of skeleton!
4375 writeStdMethodHelperBodyCplusSkeleton(intDecl, methParams, methPrmTypes, method, methodId, callbackClasses);
4379 // Write method helper for structs
4380 writeMethodHelperStructSetupCplusCallbackSkeleton(methods, intDecl);
4385 * HELPER: writeCplusCallbackWaitRequestInvokeMethod() writes the request invoke method of the skeleton callback class
4387 private void writeCplusCallbackWaitRequestInvokeMethod(Collection<String> methods, InterfaceDecl intDecl,
4388 boolean callbackExist) {
4390 // Use this set to handle two same methodIds
4391 Set<String> uniqueMethodIds = new HashSet<String>();
4392 println("void invokeMethod(IoTRMIObject* rmiObj) {");
4393 // Write variables here if we have callbacks or enums or structs
4394 writeCountVarStructSkeleton(methods, intDecl);
4395 // Write variables here if we have callbacks or enums or structs
4396 println("int methodId = rmiObj->getMethodId();");
4397 // TODO: code the permission check here!
4398 println("switch (methodId) {");
4399 // Print methods and method Ids
4400 for (String method : methods) {
4401 String methodId = intDecl.getMethodId(method);
4402 int methodNumId = intDecl.getMethodNumId(method);
4403 print("case " + methodNumId + ": ___");
4404 String helperMethod = methodId;
4405 if (uniqueMethodIds.contains(methodId))
4406 helperMethod = helperMethod + methodNumId;
4408 uniqueMethodIds.add(methodId);
4409 print(helperMethod + "(");
4410 if (writeInputCountVarStructSkeleton(method, intDecl))
4411 println(", rmiObj); break;");
4413 println("rmiObj); break;");
4415 String method = "___initCallBack()";
4416 // Print case -9999 (callback handler) if callback exists
4417 if (callbackExist) {
4418 int methodId = intDecl.getHelperMethodNumId(method);
4419 println("case " + methodId + ": ___regCB(rmiObj); break;");
4421 writeMethodCallStructCallbackSkeleton(methods, intDecl);
4422 println("default: ");
4423 println("cerr << \"Method Id \" << methodId << \" not recognized!\" << endl;");
4424 println("throw exception();");
4431 * generateCplusCallbackSkeletonClass() generate callback skeletons based on the methods list in C++
4433 public void generateCplusCallbackSkeletonClass() throws IOException {
4435 // Create a new directory
4436 String path = createDirectories(dir, subdir);
4437 for (String intface : mapIntfacePTH.keySet()) {
4438 // Open a new file to write into
4439 String newSkelClass = intface + "_CallbackSkeleton";
4440 FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".hpp");
4441 pw = new PrintWriter(new BufferedWriter(fw));
4442 // Write file headers
4443 println("#ifndef _" + newSkelClass.toUpperCase() + "_HPP__");
4444 println("#define _" + newSkelClass.toUpperCase() + "_HPP__");
4445 println("#include <iostream>");
4446 println("#include \"" + intface + ".hpp\"\n");
4447 // Pass in set of methods and get import classes
4448 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4449 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
4450 List<String> methods = intDecl.getMethods();
4451 Set<String> includeClasses = getIncludeClasses(methods, intDecl, intface, true);
4452 List<String> stdIncludeClasses = getStandardCplusIncludeClasses();
4453 List<String> allIncludeClasses = getAllLibClasses(stdIncludeClasses, includeClasses);
4454 printIncludeStatements(allIncludeClasses); println("");
4455 // Find out if there are callback objects
4456 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
4457 boolean callbackExist = !callbackClasses.isEmpty();
4458 println("using namespace std;\n");
4459 // Write class header
4460 println("class " + newSkelClass + " : public " + intface); println("{");
4461 println("private:\n");
4463 writePropertiesCplusCallbackSkeleton(intface, callbackExist, callbackClasses);
4464 println("public:\n");
4465 // Write constructor
4466 writeConstructorCplusCallbackSkeleton(newSkelClass, intface, callbackExist, intDecl, methods);
4467 // Write deconstructor
4468 writeDeconstructorCplusCallbackSkeleton(newSkelClass, callbackExist, callbackClasses);
4470 writeMethodCplusSkeleton(methods, intDecl, callbackClasses, true);
4471 // Write method helper
4472 writeMethodHelperCplusCallbackSkeleton(methods, intDecl, callbackClasses);
4473 // Write waitRequestInvokeMethod() - main loop
4474 writeCplusCallbackWaitRequestInvokeMethod(methods, intDecl, callbackExist);
4476 writeObjectIdCountInitializationCplus(newSkelClass, callbackExist);
4479 System.out.println("IoTCompiler: Generated callback skeleton class " + newSkelClass + ".hpp...");
4485 * generateInitializer() generate initializer based on type
4487 public String generateCplusInitializer(String type) {
4489 // Generate dummy returns for now
4490 if (type.equals("short")||
4491 type.equals("int") ||
4492 type.equals("long") ||
4493 type.equals("float")||
4494 type.equals("double")) {
4497 } else if ( type.equals("String") ||
4498 type.equals("string")) {
4501 } else if ( type.equals("char") ||
4502 type.equals("byte")) {
4505 } else if ( type.equals("boolean")) {
4515 * setDirectory() sets a new directory for stub files
4517 public void setDirectory(String _subdir) {
4524 * printUsage() prints the usage of this compiler
4526 public static void printUsage() {
4528 System.out.println();
4529 System.out.println("Sentinel interface and stub compiler version 1.0");
4530 System.out.println("Copyright (c) 2015-2016 University of California, Irvine - Programming Language Group.");
4531 System.out.println("All rights reserved.");
4532 System.out.println("Usage:");
4533 System.out.println("\tjava IoTCompiler -help / --help / -h\n");
4534 System.out.println("\t\tDisplay this help texts\n\n");
4535 System.out.println("\tjava IoTCompiler [<main-policy-file> <req-policy-file>]");
4536 System.out.println("\tjava IoTCompiler [<main-policy-file> <req-policy-file>] [options]\n");
4537 System.out.println("\t\tTake one or more pairs of main-req policy files, and generate Java and/or C++ files\n");
4538 System.out.println("Options:");
4539 System.out.println("\t-java\t<directory>\tGenerate Java stub files");
4540 System.out.println("\t-cplus\t<directory>\tGenerate C++ stub files");
4541 System.out.println();
4546 * parseFile() prepares Lexer and Parser objects, then parses the file
4548 public static ParseNode parseFile(String file) {
4550 ParseNode pn = null;
4552 ComplexSymbolFactory csf = new ComplexSymbolFactory();
4553 ScannerBuffer lexer =
4554 new ScannerBuffer(new Lexer(new BufferedReader(new FileReader(file)),csf));
4555 Parser parse = new Parser(lexer,csf);
4556 pn = (ParseNode) parse.parse().value;
4557 } catch (Exception e) {
4558 e.printStackTrace();
4559 throw new Error("IoTCompiler: ERROR parsing policy file or wrong command line option: " + file + "\n");
4567 * Basic helper functions
4570 boolean newline=true;
4573 private void print(String str) {
4576 if (str.equals("}"))
4578 for(int i=0; i<tab; i++)
4588 * This function converts Java to C++ type for compilation
4590 private String convertType(String type) {
4592 if (mapPrimitives.containsKey(type))
4593 return mapPrimitives.get(type);
4600 * A collection of methods with print-to-file functionality
4602 private void println(String str) {
4605 if (str.contains("}") && !str.contains("{"))
4607 for(int i=0; i<tab; i++)
4616 private void updatetabbing(String str) {
4618 tablevel+=count(str,'{')-count(str,'}');
4622 private int count(String str, char key) {
4623 char[] array = str.toCharArray();
4625 for(int i=0; i<array.length; i++) {
4626 if (array[i] == key)
4633 private void createDirectory(String dirName) {
4635 File file = new File(dirName);
4636 if (!file.exists()) {
4638 System.out.println("IoTCompiler: Directory " + dirName + " has been created!");
4640 System.out.println("IoTCompiler: Failed to create directory " + dirName + "!");
4643 System.out.println("IoTCompiler: Directory " + dirName + " exists...");
4648 // Create a directory and possibly a sub directory
4649 private String createDirectories(String dir, String subdir) {
4652 createDirectory(path);
4653 if (subdir != null) {
4654 path = path + "/" + subdir;
4655 createDirectory(path);
4661 // Inserting array members into a Map object
4662 // that maps arrKey to arrVal objects
4663 private void arraysToMap(Map map, Object[] arrKey, Object[] arrVal) {
4665 for(int i = 0; i < arrKey.length; i++) {
4667 map.put(arrKey[i], arrVal[i]);
4672 // Check and find object Id for new interface in mapNewIntfaceObjId (callbacks)
4673 // Throw an error if the new interface is not found!
4674 // Basically the compiler needs to parse the policy (and requires) files for callback class first
4675 private int getNewIntfaceObjectId(String newIntface) {
4677 if (!mapNewIntfaceObjId.containsKey(newIntface)) {
4678 throw new Error("IoTCompiler: Need to parse policy and requires files for callback class first! " +
4679 "Please place the two files for callback class in front...\n");
4681 int retObjId = mapNewIntfaceObjId.get(newIntface);
4687 // Return parameter category, i.e. PRIMITIVES, NONPRIMITIVES, USERDEFINED, ENUM, or STRUCT
4688 private ParamCategory getParamCategory(String paramType) {
4690 if (mapPrimitives.containsKey(paramType)) {
4691 return ParamCategory.PRIMITIVES;
4692 // We can either use mapNonPrimitivesJava or mapNonPrimitivesCplus here
4693 } else if (mapNonPrimitivesJava.containsKey(getSimpleType(paramType))) {
4694 return ParamCategory.NONPRIMITIVES;
4695 } else if (isEnumClass(paramType)) {
4696 return ParamCategory.ENUM;
4697 } else if (isStructClass(paramType)) {
4698 return ParamCategory.STRUCT;
4700 return ParamCategory.USERDEFINED;
4704 // Return full class name for non-primitives to generate Java import statements
4705 // e.g. java.util.Set for Set
4706 private String getNonPrimitiveJavaClass(String paramNonPrimitives) {
4708 return mapNonPrimitivesJava.get(paramNonPrimitives);
4712 // Return full class name for non-primitives to generate Cplus include statements
4713 // e.g. #include <set> for Set
4714 private String getNonPrimitiveCplusClass(String paramNonPrimitives) {
4716 return mapNonPrimitivesCplus.get(paramNonPrimitives);
4720 // Get simple types, e.g. HashSet for HashSet<...>
4721 // Basically strip off the "<...>"
4722 private String getSimpleType(String paramType) {
4724 // Check if this is generics
4725 if(paramType.contains("<")) {
4726 String[] type = paramType.split("<");
4733 // Generate a set of standard classes for import statements
4734 private List<String> getStandardJavaIntfaceImportClasses() {
4736 List<String> importClasses = new ArrayList<String>();
4737 // Add the standard list first
4738 importClasses.add("java.util.List");
4739 importClasses.add("java.util.ArrayList");
4741 return importClasses;
4745 // Generate a set of standard classes for import statements
4746 private List<String> getStandardJavaImportClasses() {
4748 List<String> importClasses = new ArrayList<String>();
4749 // Add the standard list first
4750 importClasses.add("java.io.IOException");
4751 importClasses.add("java.util.List");
4752 importClasses.add("java.util.ArrayList");
4753 importClasses.add("java.util.Arrays");
4754 importClasses.add("iotrmi.Java.IoTRMICall");
4755 importClasses.add("iotrmi.Java.IoTRMIObject");
4757 return importClasses;
4761 // Generate a set of standard classes for import statements
4762 private List<String> getStandardCplusIncludeClasses() {
4764 List<String> importClasses = new ArrayList<String>();
4765 // Add the standard list first
4766 importClasses.add("<vector>");
4767 importClasses.add("<set>");
4768 importClasses.add("\"IoTRMICall.hpp\"");
4769 importClasses.add("\"IoTRMIObject.hpp\"");
4771 return importClasses;
4775 // Combine all classes for import statements
4776 private List<String> getAllLibClasses(Collection<String> stdLibClasses, Collection<String> libClasses) {
4778 List<String> allLibClasses = new ArrayList<String>(stdLibClasses);
4779 // Iterate over the list of import classes
4780 for (String str : libClasses) {
4781 if (!allLibClasses.contains(str)) {
4782 allLibClasses.add(str);
4785 return allLibClasses;
4790 // Generate a set of classes for import statements
4791 private Set<String> getImportClasses(Collection<String> methods, InterfaceDecl intDecl) {
4793 Set<String> importClasses = new HashSet<String>();
4794 for (String method : methods) {
4795 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4796 for (String paramType : methPrmTypes) {
4798 String simpleType = getSimpleType(paramType);
4799 if (getParamCategory(simpleType) == ParamCategory.NONPRIMITIVES) {
4800 importClasses.add(getNonPrimitiveJavaClass(simpleType));
4804 return importClasses;
4808 // Handle and return the correct enum declaration
4809 // In Java, if we declare enum in Camera interface, then it becomes "Camera.<enum>"
4810 private String getEnumParamDecl(String type, InterfaceDecl intDecl) {
4812 // Strips off array "[]" for return type
4813 String pureType = getSimpleArrayType(type);
4814 // Take the inner type of generic
4815 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4816 pureType = getTypeOfGeneric(type)[0];
4817 if (isEnumClass(pureType)) {
4818 String enumType = intDecl.getInterface() + "." + type;
4825 // Handle and return the correct type
4826 private String getEnumParam(String type, String param, int i) {
4828 // Strips off array "[]" for return type
4829 String pureType = getSimpleArrayType(type);
4830 // Take the inner type of generic
4831 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4832 pureType = getTypeOfGeneric(type)[0];
4833 if (isEnumClass(pureType)) {
4834 String enumParam = "paramEnum" + i;
4841 // Handle and return the correct enum declaration translate into int[]
4842 private String getEnumType(String type) {
4844 // Strips off array "[]" for return type
4845 String pureType = getSimpleArrayType(type);
4846 // Take the inner type of generic
4847 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4848 pureType = getGenericType(type);
4849 if (isEnumClass(pureType)) {
4850 String enumType = "int[]";
4856 // Handle and return the correct enum declaration translate into int* for C
4857 private String getEnumCplusClsType(String type) {
4859 // Strips off array "[]" for return type
4860 String pureType = getSimpleArrayType(type);
4861 // Take the inner type of generic
4862 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4863 pureType = getGenericType(type);
4864 if (isEnumClass(pureType)) {
4865 String enumType = "int*";
4872 // Handle and return the correct struct declaration
4873 private String getStructType(String type) {
4875 // Strips off array "[]" for return type
4876 String pureType = getSimpleArrayType(type);
4877 // Take the inner type of generic
4878 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4879 pureType = getGenericType(type);
4880 if (isStructClass(pureType)) {
4881 String structType = "int";
4888 // Check if this an enum declaration
4889 private boolean isEnumClass(String type) {
4891 // Just iterate over the set of interfaces
4892 for (String intface : mapIntfacePTH.keySet()) {
4893 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4894 EnumDecl enumDecl = (EnumDecl) decHandler.getEnumDecl(intface);
4895 Set<String> setEnumDecl = enumDecl.getEnumDeclarations();
4896 if (setEnumDecl.contains(type))
4903 // Check if this an struct declaration
4904 private boolean isStructClass(String type) {
4906 // Just iterate over the set of interfaces
4907 for (String intface : mapIntfacePTH.keySet()) {
4908 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4909 StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface);
4910 List<String> listStructDecl = structDecl.getStructTypes();
4911 if (listStructDecl.contains(type))
4918 // Return a struct declaration
4919 private StructDecl getStructDecl(String type) {
4921 // Just iterate over the set of interfaces
4922 for (String intface : mapIntfacePTH.keySet()) {
4923 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4924 StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface);
4925 List<String> listStructDecl = structDecl.getStructTypes();
4926 if (listStructDecl.contains(type))
4933 // Return number of members (-1 if not found)
4934 private int getNumOfMembers(String type) {
4936 // Just iterate over the set of interfaces
4937 for (String intface : mapIntfacePTH.keySet()) {
4938 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4939 StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface);
4940 List<String> listStructDecl = structDecl.getStructTypes();
4941 if (listStructDecl.contains(type))
4942 return structDecl.getNumOfMembers(type);
4948 // Generate a set of classes for include statements
4949 private Set<String> getIncludeClasses(Collection<String> methods, InterfaceDecl intDecl, String intface, boolean needExchange) {
4951 Set<String> includeClasses = new HashSet<String>();
4952 for (String method : methods) {
4954 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4955 List<String> methParams = intDecl.getMethodParams(method);
4956 for (int i = 0; i < methPrmTypes.size(); i++) {
4958 String simpleType = getSimpleType(methPrmTypes.get(i));
4959 String param = methParams.get(i);
4960 if (getParamCategory(simpleType) == ParamCategory.NONPRIMITIVES) {
4961 includeClasses.add("<" + getNonPrimitiveCplusClass(simpleType) + ">");
4962 } else if (getParamCategory(simpleType) == ParamCategory.USERDEFINED) {
4963 // For original interface, we need it exchanged... not for stub interfaces
4965 includeClasses.add("\"" + exchangeParamType(simpleType) + ".hpp\"");
4966 includeClasses.add("\"" + exchangeParamType(simpleType) + "_CallbackStub.hpp\"");
4968 includeClasses.add("\"" + simpleType + ".hpp\"");
4969 includeClasses.add("\"" + simpleType + "_CallbackSkeleton.hpp\"");
4971 } else if (getParamCategory(getSimpleArrayType(simpleType)) == ParamCategory.ENUM) {
4972 includeClasses.add("\"" + simpleType + ".hpp\"");
4973 } else if (getParamCategory(getSimpleArrayType(simpleType)) == ParamCategory.STRUCT) {
4974 includeClasses.add("\"" + simpleType + ".hpp\"");
4975 } else if (param.contains("[]")) {
4976 // Check if this is array for C++; translate into vector
4977 includeClasses.add("<vector>");
4981 return includeClasses;
4985 // Generate a set of callback classes
4986 private Set<String> getCallbackClasses(Collection<String> methods, InterfaceDecl intDecl) {
4988 Set<String> callbackClasses = new HashSet<String>();
4989 for (String method : methods) {
4991 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4992 List<String> methParams = intDecl.getMethodParams(method);
4993 for (int i = 0; i < methPrmTypes.size(); i++) {
4995 String type = methPrmTypes.get(i);
4996 if (getParamCategory(type) == ParamCategory.USERDEFINED) {
4997 callbackClasses.add(type);
4998 } else if (getParamCategory(type) == ParamCategory.NONPRIMITIVES) {
4999 // Can be a List<...> of callback objects ...
5000 String genericType = getTypeOfGeneric(type)[0];
5001 if (getParamCategory(type) == ParamCategory.USERDEFINED) {
5002 callbackClasses.add(type);
5007 return callbackClasses;
5011 // Print import statements into file
5012 private void printImportStatements(Collection<String> importClasses) {
5014 for(String cls : importClasses) {
5015 println("import " + cls + ";");
5020 // Print include statements into file
5021 private void printIncludeStatements(Collection<String> includeClasses) {
5023 for(String cls : includeClasses) {
5024 println("#include " + cls);
5029 // Get the C++ version of a non-primitive type
5030 // e.g. set for Set and map for Map
5031 // Input nonPrimitiveType has to be generics in format
5032 private String[] getTypeOfGeneric(String nonPrimitiveType) {
5034 // Handle <, >, and , for 2-type generic/template
5035 String[] substr = nonPrimitiveType.split("<")[1].split(">")[0].split(",");
5040 // Gets generic type inside "<" and ">"
5041 private String getGenericType(String type) {
5043 // Handle <, >, and , for 2-type generic/template
5044 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES) {
5045 String[] substr = type.split("<")[1].split(">")[0].split(",");
5052 // This helper function strips off array declaration, e.g. int[] becomes int
5053 private String getSimpleArrayType(String type) {
5055 // Handle [ for array declaration
5056 String substr = type;
5057 if (type.contains("[]")) {
5058 substr = type.split("\\[\\]")[0];
5064 // This helper function strips off array declaration, e.g. D[] becomes D
5065 private String getSimpleIdentifier(String ident) {
5067 // Handle [ for array declaration
5068 String substr = ident;
5069 if (ident.contains("[]")) {
5070 substr = ident.split("\\[\\]")[0];
5076 // Checks and gets type in C++
5077 private String checkAndGetCplusType(String paramType) {
5079 if (getParamCategory(paramType) == ParamCategory.PRIMITIVES) {
5080 return convertType(paramType);
5081 } else if (getParamCategory(paramType) == ParamCategory.NONPRIMITIVES) {
5083 // Check for generic/template format
5084 if (paramType.contains("<") && paramType.contains(">")) {
5086 String genericClass = getSimpleType(paramType);
5087 String genericType = getGenericType(paramType);
5088 String cplusTemplate = null;
5089 cplusTemplate = getNonPrimitiveCplusClass(genericClass);
5090 if(getParamCategory(getGenericType(paramType)) == ParamCategory.USERDEFINED) {
5091 cplusTemplate = cplusTemplate + "<" + genericType + "*>";
5093 cplusTemplate = cplusTemplate + "<" + convertType(genericType) + ">";
5095 return cplusTemplate;
5097 return getNonPrimitiveCplusClass(paramType);
5098 } else if(paramType.contains("[]")) { // Array type (used for return type only)
5099 String cArray = "vector<" + convertType(getSimpleArrayType(paramType)) + ">";
5101 } else if(getParamCategory(paramType) == ParamCategory.USERDEFINED) {
5102 return paramType + "*";
5104 // Just return it as is if it's not non-primitives
5109 // Detect array declaration, e.g. int A[],
5110 // then generate "int A[]" in C++ as "vector<int> A"
5111 private String checkAndGetCplusArray(String paramType, String param) {
5113 String paramComplete = null;
5114 // Check for array declaration
5115 if (param.contains("[]")) {
5116 paramComplete = "vector<" + paramType + "> " + param.replace("[]","");
5118 // Just return it as is if it's not an array
5119 paramComplete = paramType + " " + param;
5121 return paramComplete;
5125 // Detect array declaration, e.g. int A[],
5126 // then generate "int A[]" in C++ as "vector<int> A"
5127 // This method just returns the type
5128 private String checkAndGetCplusArrayType(String paramType) {
5130 String paramTypeRet = null;
5131 // Check for array declaration
5132 if (paramType.contains("[]")) {
5133 String type = paramType.split("\\[\\]")[0];
5134 paramTypeRet = checkAndGetCplusType(type) + "[]";
5135 } else if (paramType.contains("vector")) {
5136 // Just return it as is if it's not an array
5137 String type = paramType.split("<")[1].split(">")[0];
5138 paramTypeRet = checkAndGetCplusType(type) + "[]";
5140 paramTypeRet = paramType;
5142 return paramTypeRet;
5146 // Detect array declaration, e.g. int A[],
5147 // then generate "int A[]" in C++ as "vector<int> A"
5148 // This method just returns the type
5149 private String checkAndGetCplusArrayType(String paramType, String param) {
5151 String paramTypeRet = null;
5152 // Check for array declaration
5153 if (param.contains("[]")) {
5154 paramTypeRet = checkAndGetCplusType(paramType) + "[]";
5155 } else if (paramType.contains("vector")) {
5156 // Just return it as is if it's not an array
5157 String type = paramType.split("<")[1].split(">")[0];
5158 paramTypeRet = checkAndGetCplusType(type) + "[]";
5160 paramTypeRet = paramType;
5162 return paramTypeRet;
5166 // Return the class type for class resolution (for return value)
5167 // - Check and return C++ array class, e.g. int A[] into int*
5168 // - Check and return C++ vector class, e.g. List<Integer> A into vector<int>
5169 private String checkAndGetCplusRetClsType(String paramType) {
5171 String paramTypeRet = null;
5172 // Check for array declaration
5173 if (paramType.contains("[]")) {
5174 String type = paramType.split("\\[\\]")[0];
5175 paramTypeRet = getSimpleArrayType(type) + "*";
5176 } else if (paramType.contains("<") && paramType.contains(">")) {
5177 // Just return it as is if it's not an array
5178 String type = paramType.split("<")[1].split(">")[0];
5179 paramTypeRet = "vector<" + getGenericType(type) + ">";
5181 paramTypeRet = paramType;
5183 return paramTypeRet;
5187 // Return the class type for class resolution (for method arguments)
5188 // - Check and return C++ array class, e.g. int A[] into int*
5189 // - Check and return C++ vector class, e.g. List<Integer> A into vector<int>
5190 private String checkAndGetCplusArgClsType(String paramType, String param) {
5192 String paramTypeRet = getEnumCplusClsType(paramType);
5193 if (!paramTypeRet.equals(paramType))
5194 // Just return if it is an enum type
5195 // Type will still be the same if it's not an enum type
5196 return paramTypeRet;
5198 // Check for array declaration
5199 if (param.contains("[]")) {
5200 paramTypeRet = getSimpleArrayType(paramType) + "*";
5201 } else if (paramType.contains("<") && paramType.contains(">")) {
5202 // Just return it as is if it's not an array
5203 String type = paramType.split("<")[1].split(">")[0];
5204 paramTypeRet = "vector<" + getGenericType(type) + ">";
5206 paramTypeRet = paramType;
5208 return paramTypeRet;
5212 // Detect array declaration, e.g. int A[],
5213 // then generate type "int[]"
5214 private String checkAndGetArray(String paramType, String param) {
5216 String paramTypeRet = null;
5217 // Check for array declaration
5218 if (param.contains("[]")) {
5219 paramTypeRet = paramType + "[]";
5221 // Just return it as is if it's not an array
5222 paramTypeRet = paramType;
5224 return paramTypeRet;
5228 // Is array or list?
5229 private boolean isArrayOrList(String paramType, String param) {
5231 // Check for array declaration
5234 else if (isList(paramType))
5242 // For return type we use retType as input parameter
5243 private boolean isArray(String param) {
5245 // Check for array declaration
5246 if (param.contains("[]"))
5254 private boolean isList(String paramType) {
5256 // Check for array declaration
5257 if (paramType.contains("List"))
5264 // Get the right type for a callback object
5265 private String checkAndGetParamClass(String paramType) {
5267 // Check if this is generics
5268 if(getParamCategory(paramType) == ParamCategory.USERDEFINED) {
5269 return exchangeParamType(paramType);
5270 } else if (isList(paramType) &&
5271 (getParamCategory(getGenericType(paramType)) == ParamCategory.USERDEFINED)) {
5272 return "List<" + exchangeParamType(getGenericType(paramType)) + ">";
5278 // Returns the other interface for type-checking purposes for USERDEFINED
5279 // classes based on the information provided in multiple policy files
5280 // e.g. return CameraWithXXX instead of Camera
5281 private String exchangeParamType(String intface) {
5283 // Param type that's passed is the interface name we need to look for
5284 // in the map of interfaces, based on available policy files.
5285 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
5286 if (decHandler != null) {
5287 // We've found the required interface policy files
5288 RequiresDecl reqDecl = (RequiresDecl) decHandler.getRequiresDecl(intface);
5289 Set<String> setExchInt = reqDecl.getInterfaces();
5290 if (setExchInt.size() == 1) {
5291 Iterator iter = setExchInt.iterator();
5292 return (String) iter.next();
5294 throw new Error("IoTCompiler: Ambiguous stub interfaces: " + setExchInt.toString() +
5295 ". Only one new interface can be declared if the object " + intface +
5296 " needs to be passed in as an input parameter!\n");
5299 // NULL value - this means policy files missing
5300 throw new Error("IoTCompiler: Parameter type lookup failed for " + intface +
5301 "... Please provide the necessary policy files for user-defined types." +
5302 " If this is an array please type the brackets after the variable name," +
5303 " e.g. \"String str[]\", not \"String[] str\"." +
5304 " If this is a Collections (Java) / STL (C++) type, this compiler only" +
5305 " supports List/ArrayList (Java) or list (C++).\n");
5310 public static void main(String[] args) throws Exception {
5312 // If there is no argument or just "--help" or "-h", then invoke printUsage()
5313 if ((args[0].equals("-help") ||
5314 args[0].equals("--help")||
5315 args[0].equals("-h")) ||
5316 (args.length == 0)) {
5318 IoTCompiler.printUsage();
5320 } else if (args.length > 1) {
5322 IoTCompiler comp = new IoTCompiler();
5325 // Parse main policy file
5326 ParseNode pnPol = IoTCompiler.parseFile(args[i]);
5327 // Parse "requires" policy file
5328 ParseNode pnReq = IoTCompiler.parseFile(args[i+1]);
5329 // Get interface name
5330 String intface = ParseTreeHandler.getOrigIntface(pnPol);
5331 comp.setDataStructures(intface, pnPol, pnReq);
5332 comp.getMethodsForIntface(intface);
5334 // 1) Check if this is the last option before "-java" or "-cplus"
5335 // 2) Check if this is really the last option (no "-java" or "-cplus")
5336 } while(!args[i].equals("-java") &&
5337 !args[i].equals("-cplus") &&
5340 // Generate everything if we don't see "-java" or "-cplus"
5341 if (i == args.length) {
5342 comp.generateEnumJava();
5343 comp.generateStructJava();
5344 comp.generateJavaLocalInterfaces();
5345 comp.generateJavaInterfaces();
5346 comp.generateJavaStubClasses();
5347 comp.generateJavaCallbackStubClasses();
5348 comp.generateJavaSkeletonClass();
5349 comp.generateJavaCallbackSkeletonClass();
5350 comp.generateEnumCplus();
5351 comp.generateStructCplus();
5352 comp.generateCplusLocalInterfaces();
5353 comp.generateCPlusInterfaces();
5354 comp.generateCPlusStubClasses();
5355 comp.generateCPlusCallbackStubClasses();
5356 comp.generateCplusSkeletonClass();
5357 comp.generateCplusCallbackSkeletonClass();
5359 // Check other options
5360 while(i < args.length) {
5362 if (!args[i].equals("-java") &&
5363 !args[i].equals("-cplus")) {
5364 throw new Error("IoTCompiler: ERROR - unrecognized command line option: " + args[i] + "\n");
5366 if (i + 1 < args.length) {
5367 comp.setDirectory(args[i+1]);
5369 throw new Error("IoTCompiler: ERROR - please provide <directory> after option: " + args[i] + "\n");
5371 if (args[i].equals("-java")) {
5372 comp.generateEnumJava();
5373 comp.generateStructJava();
5374 comp.generateJavaLocalInterfaces();
5375 comp.generateJavaInterfaces();
5376 comp.generateJavaStubClasses();
5377 comp.generateJavaCallbackStubClasses();
5378 comp.generateJavaSkeletonClass();
5379 comp.generateJavaCallbackSkeletonClass();
5381 comp.generateEnumCplus();
5382 comp.generateStructCplus();
5383 comp.generateCplusLocalInterfaces();
5384 comp.generateCPlusInterfaces();
5385 comp.generateCPlusStubClasses();
5386 comp.generateCPlusCallbackStubClasses();
5387 comp.generateCplusSkeletonClass();
5388 comp.generateCplusCallbackSkeletonClass();
5395 // Need to at least have exactly 2 parameters, i.e. main policy file and requires file
5396 IoTCompiler.printUsage();
5397 throw new Error("IoTCompiler: At least two arguments (main and requires policy files) have to be provided!\n");