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 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 (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
1368 String exchParamType = checkAndGetParamClass(getGenericType(paramType));
1369 // Print array if this is array or list if this is a list of callback objects
1370 if (isArray(param)) {
1371 println("int numStubs" + i + " = (int) paramObj[" + i + "];");
1372 println(exchParamType + "[] stub" + i + " = new " + exchParamType + "[numStubs" + i + "];");
1373 } else if (isList(paramType)) {
1374 println("int numStubs" + i + " = (int) paramObj[" + i + "];");
1375 println("List<" + exchParamType + "> stub" + i + " = new ArrayList<" + exchParamType + ">();");
1377 println(exchParamType + " stub" + i + " = new " + exchParamType + "_CallbackStub(rmiCall, objIdCnt);");
1378 println("objIdCnt++;");
1381 // Generate a loop if needed
1382 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
1383 String exchParamType = checkAndGetParamClass(getGenericType(paramType));
1384 if (isArray(param)) {
1385 println("for (int objId = 0; objId < numStubs" + i + "; objId++) {");
1386 println("stub" + i + "[objId] = new " + exchParamType + "_CallbackStub(rmiCall, objIdCnt);");
1387 println("objIdCnt++;");
1389 } else if (isList(paramType)) {
1390 println("for (int objId = 0; objId < numStubs" + i + "; objId++) {");
1391 println("stub" + i + ".add(new " + exchParamType + "_CallbackStub(rmiCall, objIdCnt));");
1392 println("objIdCnt++;");
1395 mapStubParam.put(i, "stub" + i); // List of all stub parameters
1398 return mapStubParam;
1403 * HELPER: checkAndWriteEnumTypeJavaSkeleton() writes the enum type (convert from enum to int)
1405 private void checkAndWriteEnumTypeJavaSkeleton(List<String> methParams, List<String> methPrmTypes) {
1407 // Iterate and find enum declarations
1408 for (int i = 0; i < methParams.size(); i++) {
1409 String paramType = methPrmTypes.get(i);
1410 String param = methParams.get(i);
1411 String simpleType = getGenericType(paramType);
1412 if (isEnumClass(simpleType)) {
1413 // Check if this is enum type
1414 println("int paramInt" + i + "[] = (int[]) paramObj[" + i + "];");
1415 println(simpleType + "[] enumVals = " + simpleType + ".values();");
1416 if (isArray(param)) { // An array
1417 println("int len" + i + " = paramInt" + i + ".length;");
1418 println(simpleType + "[] paramEnum" + i + " = new " + simpleType + "[len" + i + "];");
1419 println("for (int i = 0; i < len" + i + "; i++) {");
1420 println("paramEnum" + i + "[i] = enumVals[paramInt" + i + "[i]];");
1422 } else if (isList(paramType)) { // A list
1423 println("int len" + i + " = paramInt" + i + ".length;");
1424 println("List<" + simpleType + "> paramEnum" + i + " = new ArrayList<" + simpleType + ">();");
1425 println("for (int i = 0; i < len" + i + "; i++) {");
1426 println("paramEnum" + i + ".add(enumVals[paramInt" + i + "[i]]);");
1428 } else { // Just one element
1429 println(simpleType + " paramEnum" + i + " = enumVals[paramInt" + i + "[0]];");
1437 * HELPER: checkAndWriteEnumRetTypeJavaSkeleton() writes the enum return type (convert from enum to int)
1439 private void checkAndWriteEnumRetTypeJavaSkeleton(String retType, String methodId) {
1441 // Strips off array "[]" for return type
1442 String pureType = getSimpleArrayType(getGenericType(retType));
1443 // Take the inner type of generic
1444 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
1445 pureType = getGenericType(retType);
1446 if (isEnumClass(pureType)) {
1447 // Check if this is enum type
1449 if (isArray(retType)) { // An array
1450 print(pureType + "[] retEnum = " + methodId + "(");
1451 } else if (isList(retType)) { // A list
1452 print("List<" + pureType + "> retEnum = " + methodId + "(");
1453 } else { // Just one element
1454 print(pureType + " retEnum = " + methodId + "(");
1461 * HELPER: checkAndWriteEnumRetConvJavaSkeleton() writes the enum return type (convert from enum to int)
1463 private void checkAndWriteEnumRetConvJavaSkeleton(String retType) {
1465 // Strips off array "[]" for return type
1466 String pureType = getSimpleArrayType(getGenericType(retType));
1467 // Take the inner type of generic
1468 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
1469 pureType = getGenericType(retType);
1470 if (isEnumClass(pureType)) {
1471 // Check if this is enum type
1472 if (isArray(retType)) { // An array
1473 println("int retLen = retEnum.length;");
1474 println("int[] retEnumVal = new int[retLen];");
1475 println("for (int i = 0; i < retLen; i++) {");
1476 println("retEnumVal[i] = retEnum[i].ordinal();");
1478 } else if (isList(retType)) { // A list
1479 println("int retLen = retEnum.size();");
1480 println("int[] retEnumVal = new int[retLen];");
1481 println("for (int i = 0; i < retLen; i++) {");
1482 println("retEnumVal[i] = retEnum.get(i).ordinal();");
1484 } else { // Just one element
1485 println("int[] retEnumVal = new int[1];");
1486 println("retEnumVal[0] = retEnum.ordinal();");
1488 println("Object retObj = retEnumVal;");
1494 * HELPER: writeLengthStructParamClassSkeleton() writes lengths of params
1496 private void writeLengthStructParamClassSkeleton(List<String> methParams, List<String> methPrmTypes,
1497 String method, InterfaceDecl intDecl) {
1499 // Iterate and find struct declarations - count number of params
1500 for (int i = 0; i < methParams.size(); i++) {
1501 String paramType = methPrmTypes.get(i);
1502 String param = methParams.get(i);
1503 String simpleType = getGenericType(paramType);
1504 if (isStructClass(simpleType)) {
1505 int members = getNumOfMembers(simpleType);
1506 print(Integer.toString(members) + "*");
1507 int methodNumId = intDecl.getMethodNumId(method);
1508 print("struct" + methodNumId + "Size" + i);
1511 if (i != methParams.size() - 1) {
1519 * HELPER: writeStructMembersJavaSkeleton() writes member parameters of struct
1521 private void writeStructMembersJavaSkeleton(String simpleType, String paramType,
1522 String param, String method, InterfaceDecl intDecl, int iVar) {
1524 // Get the struct declaration for this struct and generate initialization code
1525 StructDecl structDecl = getStructDecl(simpleType);
1526 List<String> memTypes = structDecl.getMemberTypes(simpleType);
1527 List<String> members = structDecl.getMembers(simpleType);
1528 if (isArrayOrList(paramType, param)) { // An array or list
1529 int methodNumId = intDecl.getMethodNumId(method);
1530 String counter = "struct" + methodNumId + "Size" + iVar;
1531 println("for(int i = 0; i < " + counter + "; i++) {");
1533 if (isArrayOrList(paramType, param)) { // An array or list
1534 for (int i = 0; i < members.size(); i++) {
1535 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1536 println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1537 println("paramClsGen[pos++] = null;");
1540 } else { // Just one struct element
1541 for (int i = 0; i < members.size(); i++) {
1542 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1543 println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1544 println("paramClsGen[pos++] = null;");
1551 * HELPER: writeStructMembersInitJavaSkeleton() writes member parameters initialization of struct
1553 private void writeStructMembersInitJavaSkeleton(InterfaceDecl intDecl, List<String> methParams,
1554 List<String> methPrmTypes, String method) {
1556 println("int objPos = 0;");
1557 for (int i = 0; i < methParams.size(); i++) {
1558 String paramType = methPrmTypes.get(i);
1559 String param = methParams.get(i);
1560 String simpleType = getGenericType(paramType);
1561 if (isStructClass(simpleType)) {
1562 int methodNumId = intDecl.getMethodNumId(method);
1563 String counter = "struct" + methodNumId + "Size" + i;
1565 if (isArray(param)) { // An array
1566 println(simpleType + "[] paramStruct" + i + " = new " + simpleType + "[" + counter + "];");
1567 println("for(int i = 0; i < " + counter + "; i++) {");
1568 println("paramStruct" + i + "[i] = new " + simpleType + "();");
1570 } else if (isList(paramType)) { // A list
1571 println("List<" + simpleType + "> paramStruct" + i + " = new ArrayList<" + simpleType + ">();");
1573 println(simpleType + " paramStruct" + i + " = new " + simpleType + "();");
1574 // Initialize members
1575 StructDecl structDecl = getStructDecl(simpleType);
1576 List<String> members = structDecl.getMembers(simpleType);
1577 List<String> memTypes = structDecl.getMemberTypes(simpleType);
1578 if (isArrayOrList(paramType, param)) { // An array or list
1579 println("for(int i = 0; i < " + counter + "; i++) {");
1581 if (isArray(param)) { // An array
1582 for (int j = 0; j < members.size(); j++) {
1583 String prmType = checkAndGetArray(memTypes.get(j), members.get(j));
1584 print("paramStruct" + i + "[i]." + getSimpleIdentifier(members.get(j)));
1585 println(" = (" + getSimpleType(getEnumType(prmType)) + ") paramObj[objPos++];");
1588 } else if (isList(paramType)) { // A list
1589 println(simpleType + " paramStructMem = new " + simpleType + "();");
1590 for (int j = 0; j < members.size(); j++) {
1591 String prmType = checkAndGetArray(memTypes.get(j), members.get(j));
1592 print("paramStructMem." + getSimpleIdentifier(members.get(j)));
1593 println(" = (" + getSimpleType(getEnumType(prmType)) + ") paramObj[objPos++];");
1595 println("paramStruct" + i + ".add(paramStructMem);");
1597 } else { // Just one struct element
1598 for (int j = 0; j < members.size(); j++) {
1599 String prmType = checkAndGetArray(memTypes.get(j), members.get(j));
1600 print("paramStruct" + i + "." + getSimpleIdentifier(members.get(j)));
1601 println(" = (" + getSimpleType(getEnumType(prmType)) + ") paramObj[objPos++];");
1605 // Take offsets of parameters
1606 println("int offset" + i +" = objPos++;");
1613 * HELPER: writeStructReturnJavaSkeleton() writes struct for return statement
1615 private void writeStructReturnJavaSkeleton(String simpleType, String retType) {
1617 // Minimum retLen is 1 if this is a single struct object
1618 if (isArray(retType))
1619 println("int retLen = retStruct.length;");
1620 else if (isList(retType))
1621 println("int retLen = retStruct.size();");
1622 else // Just single struct object
1623 println("int retLen = 1;");
1624 println("Object retLenObj = retLen;");
1625 println("rmiObj.sendReturnObj(retLenObj);");
1626 int numMem = getNumOfMembers(simpleType);
1627 println("Class<?>[] retCls = new Class<?>[" + numMem + "*retLen];");
1628 println("Object[] retObj = new Object[" + numMem + "*retLen];");
1629 println("int retPos = 0;");
1630 // Get the struct declaration for this struct and generate initialization code
1631 StructDecl structDecl = getStructDecl(simpleType);
1632 List<String> memTypes = structDecl.getMemberTypes(simpleType);
1633 List<String> members = structDecl.getMembers(simpleType);
1634 if (isArray(retType)) { // An array or list
1635 println("for(int i = 0; i < retLen; i++) {");
1636 for (int i = 0; i < members.size(); i++) {
1637 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1638 println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1639 print("retObj[retPos++] = retStruct[i].");
1640 print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i));
1644 } else if (isList(retType)) { // An array or list
1645 println("for(int i = 0; i < retLen; i++) {");
1646 for (int i = 0; i < members.size(); i++) {
1647 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1648 println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1649 print("retObj[retPos++] = retStruct.get(i).");
1650 print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i));
1654 } else { // Just one struct element
1655 for (int i = 0; i < members.size(); i++) {
1656 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1657 println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1658 print("retObj[retPos++] = retStruct.");
1659 print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i));
1668 * HELPER: writeMethodHelperReturnJavaSkeleton() writes return statement part in skeleton
1670 private void writeMethodHelperReturnJavaSkeleton(InterfaceDecl intDecl, List<String> methParams,
1671 List<String> methPrmTypes, String method, boolean isCallbackMethod, String callbackType,
1672 boolean isStructMethod) {
1674 checkAndWriteEnumTypeJavaSkeleton(methParams, methPrmTypes);
1675 Map<Integer,String> mapStubParam = null;
1676 if (isCallbackMethod) {
1677 mapStubParam = writeCallbackJavaStubGeneration(methParams, methPrmTypes, callbackType);
1679 // Check if this is "void"
1680 String retType = intDecl.getMethodType(method);
1681 if (retType.equals("void")) {
1682 print(intDecl.getMethodId(method) + "(");
1683 } else if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) { // Enum type
1684 checkAndWriteEnumRetTypeJavaSkeleton(retType, intDecl.getMethodId(method));
1685 } else if (isStructClass(getSimpleArrayType(getGenericType(retType)))) { // Struct type
1686 print(retType + " retStruct = " + intDecl.getMethodId(method) + "(");
1687 } else { // We do have a return value
1688 print("Object retObj = " + intDecl.getMethodId(method) + "(");
1690 for (int i = 0; i < methParams.size(); i++) {
1692 String paramType = methPrmTypes.get(i);
1693 if (isCallbackMethod && checkCallbackType(paramType, callbackType)) {
1694 print(mapStubParam.get(i)); // Get the callback parameter
1695 } else if (isEnumClass(getGenericType(paramType))) { // Enum class
1696 print(getEnumParam(paramType, methParams.get(i), i));
1697 } else if (isStructClass(getGenericType(paramType))) {
1698 print("paramStruct" + i);
1700 String prmType = checkAndGetArray(paramType, 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 println("int pos = 0;");
1745 // Iterate again over the parameters
1746 for (int i = 0; i < methParams.size(); i++) {
1747 String paramType = methPrmTypes.get(i);
1748 String param = methParams.get(i);
1749 String simpleType = getGenericType(paramType);
1750 if (isStructClass(simpleType)) {
1751 writeStructMembersJavaSkeleton(simpleType, paramType, param, method, intDecl, i);
1753 String prmType = returnGenericCallbackType(methPrmTypes.get(i));
1754 if (callbackClasses.contains(prmType)) {
1755 isCallbackMethod = true;
1756 callbackType = prmType;
1757 println("paramCls[pos] = int.class;");
1758 println("paramClsGen[pos++] = null;");
1759 } else { // Generate normal classes if it's not a callback object
1760 String paramTypeOth = checkAndGetArray(methPrmTypes.get(i), methParams.get(i));
1761 println("paramCls[pos] = " + getSimpleType(getEnumType(paramTypeOth)) + ".class;");
1762 print("paramClsGen[pos++] = ");
1763 String prmTypeOth = methPrmTypes.get(i);
1764 if (getParamCategory(prmTypeOth) == ParamCategory.NONPRIMITIVES)
1765 println(getTypeOfGeneric(prmType)[0] + ".class;");
1771 println("Object[] paramObj = rmiObj.getMethodParams(paramCls, paramClsGen);");
1772 writeStructMembersInitJavaSkeleton(intDecl, methParams, methPrmTypes, method);
1773 // Write the return value part
1774 writeMethodHelperReturnJavaSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod, callbackType, true);
1779 * HELPER: writeStdMethodHelperBodyJavaSkeleton() writes the standard method body helper in the skeleton class
1781 private void writeStdMethodHelperBodyJavaSkeleton(InterfaceDecl intDecl, List<String> methParams,
1782 List<String> methPrmTypes, String method, Set<String> callbackClasses) {
1784 // Generate array of parameter objects
1785 boolean isCallbackMethod = false;
1786 String callbackType = null;
1787 print("Object[] paramObj = rmiObj.getMethodParams(new Class<?>[] { ");
1788 for (int i = 0; i < methParams.size(); i++) {
1790 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
1791 if (callbackClasses.contains(paramType)) {
1792 isCallbackMethod = true;
1793 callbackType = paramType;
1795 } else { // Generate normal classes if it's not a callback object
1796 String prmType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i));
1797 print(getSimpleType(getEnumType(prmType)) + ".class");
1799 if (i != methParams.size() - 1)
1803 // Generate generic class if it's a generic type.. null otherwise
1804 print("new Class<?>[] { ");
1805 for (int i = 0; i < methParams.size(); i++) {
1806 String prmType = methPrmTypes.get(i);
1807 if ((getParamCategory(prmType) == ParamCategory.NONPRIMITIVES) &&
1808 !isEnumClass(getGenericType(prmType)) &&
1809 !callbackClasses.contains(getGenericType(prmType)))
1810 print(getGenericType(prmType) + ".class");
1813 if (i != methParams.size() - 1)
1817 // Write the return value part
1818 writeMethodHelperReturnJavaSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod, callbackType, false);
1823 * HELPER: writeMethodHelperJavaSkeleton() writes the method helper of the skeleton class
1825 private void writeMethodHelperJavaSkeleton(Collection<String> methods, InterfaceDecl intDecl, Set<String> callbackClasses) {
1827 // Use this set to handle two same methodIds
1828 Set<String> uniqueMethodIds = new HashSet<String>();
1829 for (String method : methods) {
1831 List<String> methParams = intDecl.getMethodParams(method);
1832 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1833 if (isStructPresent(methParams, methPrmTypes)) { // Treat struct differently
1834 String methodId = intDecl.getMethodId(method);
1835 print("public void ___");
1836 String helperMethod = methodId;
1837 if (uniqueMethodIds.contains(methodId))
1838 helperMethod = helperMethod + intDecl.getMethodNumId(method);
1840 uniqueMethodIds.add(methodId);
1841 String retType = intDecl.getMethodType(method);
1842 print(helperMethod + "(");
1843 boolean begin = true;
1844 for (int i = 0; i < methParams.size(); i++) { // Print size variables
1845 String paramType = methPrmTypes.get(i);
1846 String param = methParams.get(i);
1847 String simpleType = getGenericType(paramType);
1848 if (isStructClass(simpleType)) {
1849 if (!begin) { // Generate comma for not the beginning variable
1850 print(", "); begin = false;
1852 int methodNumId = intDecl.getMethodNumId(method);
1853 print("int struct" + methodNumId + "Size" + i);
1856 // Check if this is "void"
1857 if (retType.equals("void"))
1860 println(") throws IOException {");
1861 writeMethodHelperStructJavaSkeleton(intDecl, methParams, methPrmTypes, method, callbackClasses);
1864 String methodId = intDecl.getMethodId(method);
1865 print("public void ___");
1866 String helperMethod = methodId;
1867 if (uniqueMethodIds.contains(methodId))
1868 helperMethod = helperMethod + intDecl.getMethodNumId(method);
1870 uniqueMethodIds.add(methodId);
1871 // Check if this is "void"
1872 String retType = intDecl.getMethodType(method);
1873 if (retType.equals("void"))
1874 println(helperMethod + "() {");
1876 println(helperMethod + "() throws IOException {");
1877 // Now, write the helper body of skeleton!
1878 writeStdMethodHelperBodyJavaSkeleton(intDecl, methParams, methPrmTypes, method, callbackClasses);
1882 // Write method helper for structs
1883 writeMethodHelperStructSetupJavaSkeleton(methods, intDecl);
1888 * HELPER: writeMethodHelperStructSetupJavaSkeleton() writes the method helper of struct setup in skeleton class
1890 private void writeMethodHelperStructSetupJavaSkeleton(Collection<String> methods,
1891 InterfaceDecl intDecl) {
1893 // Use this set to handle two same methodIds
1894 for (String method : methods) {
1896 List<String> methParams = intDecl.getMethodParams(method);
1897 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1898 // Check for params with structs
1899 for (int i = 0; i < methParams.size(); i++) {
1900 String paramType = methPrmTypes.get(i);
1901 String param = methParams.get(i);
1902 String simpleType = getGenericType(paramType);
1903 if (isStructClass(simpleType)) {
1904 int methodNumId = intDecl.getMethodNumId(method);
1905 print("public int ___");
1906 String helperMethod = methodNumId + "struct" + i;
1907 println(helperMethod + "() {");
1908 // Now, write the helper body of skeleton!
1909 println("Object[] paramObj = rmiObj.getMethodParams(new Class<?>[] { int.class }, new Class<?>[] { null });");
1910 println("return (int) paramObj[0];");
1919 * HELPER: writeMethodHelperStructSetupJavaCallbackSkeleton() writes the method helper of struct setup in callback skeleton class
1921 private void writeMethodHelperStructSetupJavaCallbackSkeleton(Collection<String> methods,
1922 InterfaceDecl intDecl) {
1924 // Use this set to handle two same methodIds
1925 for (String method : methods) {
1927 List<String> methParams = intDecl.getMethodParams(method);
1928 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1929 // Check for params with structs
1930 for (int i = 0; i < methParams.size(); i++) {
1931 String paramType = methPrmTypes.get(i);
1932 String param = methParams.get(i);
1933 String simpleType = getGenericType(paramType);
1934 if (isStructClass(simpleType)) {
1935 int methodNumId = intDecl.getMethodNumId(method);
1936 print("public int ___");
1937 String helperMethod = methodNumId + "struct" + i;
1938 println(helperMethod + "(IoTRMIObject rmiObj) {");
1939 // Now, write the helper body of skeleton!
1940 println("Object[] paramObj = rmiObj.getMethodParams(new Class<?>[] { int.class }, new Class<?>[] { null });");
1941 println("return (int) paramObj[0];");
1950 * HELPER: writeCountVarStructSkeleton() writes counter variable of struct for skeleton
1952 private void writeCountVarStructSkeleton(Collection<String> methods, InterfaceDecl intDecl) {
1954 // Use this set to handle two same methodIds
1955 for (String method : methods) {
1957 List<String> methParams = intDecl.getMethodParams(method);
1958 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1959 // Check for params with structs
1960 for (int i = 0; i < methParams.size(); i++) {
1961 String paramType = methPrmTypes.get(i);
1962 String param = methParams.get(i);
1963 String simpleType = getGenericType(paramType);
1964 if (isStructClass(simpleType)) {
1965 int methodNumId = intDecl.getMethodNumId(method);
1966 println("int struct" + methodNumId + "Size" + i + " = 0;");
1974 * HELPER: writeInputCountVarStructSkeleton() writes input counter variable of struct for skeleton
1976 private boolean writeInputCountVarStructSkeleton(String method, InterfaceDecl intDecl) {
1978 List<String> methParams = intDecl.getMethodParams(method);
1979 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1980 boolean structExist = false;
1981 // Check for params with structs
1982 for (int i = 0; i < methParams.size(); i++) {
1983 String paramType = methPrmTypes.get(i);
1984 String param = methParams.get(i);
1985 String simpleType = getGenericType(paramType);
1986 boolean begin = true;
1987 if (isStructClass(simpleType)) {
1990 print(", "); begin = false;
1992 int methodNumId = intDecl.getMethodNumId(method);
1993 print("struct" + methodNumId + "Size" + i);
2001 * HELPER: writeMethodCallStructSkeleton() writes method call for wait invoke in skeleton
2003 private void writeMethodCallStructSkeleton(Collection<String> methods, InterfaceDecl intDecl) {
2005 // Use this set to handle two same methodIds
2006 for (String method : methods) {
2008 List<String> methParams = intDecl.getMethodParams(method);
2009 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2010 // Check for params with structs
2011 for (int i = 0; i < methParams.size(); i++) {
2012 String paramType = methPrmTypes.get(i);
2013 String param = methParams.get(i);
2014 String simpleType = getGenericType(paramType);
2015 if (isStructClass(simpleType)) {
2016 int methodNumId = intDecl.getMethodNumId(method);
2018 String helperMethod = methodNumId + "struct" + i;
2019 String tempVar = "struct" + methodNumId + "Size" + i;
2020 print(intDecl.getHelperMethodNumId(helperMethod) + ": ");
2021 print(tempVar + " = ___");
2022 println(helperMethod + "(); break;");
2030 * HELPER: writeMethodCallStructCallbackSkeleton() writes method call for wait invoke in skeleton
2032 private void writeMethodCallStructCallbackSkeleton(Collection<String> methods, InterfaceDecl intDecl) {
2034 // Use this set to handle two same methodIds
2035 for (String method : methods) {
2037 List<String> methParams = intDecl.getMethodParams(method);
2038 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2039 // Check for params with structs
2040 for (int i = 0; i < methParams.size(); i++) {
2041 String paramType = methPrmTypes.get(i);
2042 String param = methParams.get(i);
2043 String simpleType = getGenericType(paramType);
2044 if (isStructClass(simpleType)) {
2045 int methodNumId = intDecl.getMethodNumId(method);
2047 String helperMethod = methodNumId + "struct" + i;
2048 String tempVar = "struct" + methodNumId + "Size" + i;
2049 print(intDecl.getHelperMethodNumId(helperMethod) + ": ");
2050 print(tempVar + " = ___");
2051 println(helperMethod + "(rmiObj); break;");
2059 * HELPER: writeJavaMethodPermission() writes permission checks in skeleton
2061 private void writeJavaMethodPermission(String intface) {
2063 // Get all the different stubs
2064 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
2065 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
2066 String newIntface = intMeth.getKey();
2067 int newObjectId = getNewIntfaceObjectId(newIntface);
2068 println("if (_objectId == object" + newObjectId + "Id) {");
2069 println("if (!set" + newObjectId + "Allowed.contains(methodId)) {");
2070 println("throw new Error(\"Object with object Id: \" + _objectId + \" is not allowed to access method: \" + methodId);");
2074 println("throw new Error(\"Object Id: \" + _objectId + \" not recognized!\");");
2081 * HELPER: writeJavaWaitRequestInvokeMethod() writes the main loop of the skeleton class
2083 private void writeJavaWaitRequestInvokeMethod(Collection<String> methods, InterfaceDecl intDecl, boolean callbackExist, String intface) {
2085 // Use this set to handle two same methodIds
2086 Set<String> uniqueMethodIds = new HashSet<String>();
2087 println("private void ___waitRequestInvokeMethod() throws IOException {");
2088 // Write variables here if we have callbacks or enums or structs
2089 writeCountVarStructSkeleton(methods, intDecl);
2090 println("while (true) {");
2091 println("rmiObj.getMethodBytes();");
2092 println("int _objectId = rmiObj.getObjectId();");
2093 println("int methodId = rmiObj.getMethodId();");
2094 // Generate permission check
2095 writeJavaMethodPermission(intface);
2096 println("switch (methodId) {");
2097 // Print methods and method Ids
2098 for (String method : methods) {
2099 String methodId = intDecl.getMethodId(method);
2100 int methodNumId = intDecl.getMethodNumId(method);
2101 print("case " + methodNumId + ": ___");
2102 String helperMethod = methodId;
2103 if (uniqueMethodIds.contains(methodId))
2104 helperMethod = helperMethod + methodNumId;
2106 uniqueMethodIds.add(methodId);
2107 print(helperMethod + "(");
2108 writeInputCountVarStructSkeleton(method, intDecl);
2109 println("); break;");
2111 String method = "___initCallBack()";
2112 // Print case -9999 (callback handler) if callback exists
2113 if (callbackExist) {
2114 int methodId = intDecl.getHelperMethodNumId(method);
2115 println("case " + methodId + ": ___regCB(); break;");
2117 writeMethodCallStructSkeleton(methods, intDecl);
2118 println("default: ");
2119 println("throw new Error(\"Method Id \" + methodId + \" not recognized!\");");
2127 * generateJavaSkeletonClass() generate skeletons based on the methods list in Java
2129 public void generateJavaSkeletonClass() throws IOException {
2131 // Create a new directory
2132 String path = createDirectories(dir, subdir);
2133 for (String intface : mapIntfacePTH.keySet()) {
2134 // Open a new file to write into
2135 String newSkelClass = intface + "_Skeleton";
2136 FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".java");
2137 pw = new PrintWriter(new BufferedWriter(fw));
2138 // Pass in set of methods and get import classes
2139 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2140 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
2141 List<String> methods = intDecl.getMethods();
2142 Set<String> importClasses = getImportClasses(methods, intDecl);
2143 List<String> stdImportClasses = getStandardJavaImportClasses();
2144 List<String> allImportClasses = getAllLibClasses(stdImportClasses, importClasses);
2145 printImportStatements(allImportClasses);
2146 // Find out if there are callback objects
2147 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
2148 boolean callbackExist = !callbackClasses.isEmpty();
2149 // Write class header
2151 println("public class " + newSkelClass + " implements " + intface + " {\n");
2153 writePropertiesJavaSkeleton(intface, callbackExist, intDecl);
2154 // Write constructor
2155 writeConstructorJavaSkeleton(newSkelClass, intface, intDecl, methods, callbackExist);
2157 writeMethodJavaSkeleton(methods, intDecl, callbackClasses, false);
2158 // Write method helper
2159 writeMethodHelperJavaSkeleton(methods, intDecl, callbackClasses);
2160 // Write waitRequestInvokeMethod() - main loop
2161 writeJavaWaitRequestInvokeMethod(methods, intDecl, callbackExist, intface);
2164 System.out.println("IoTCompiler: Generated skeleton class " + newSkelClass + ".java...");
2170 * HELPER: writePropertiesJavaCallbackSkeleton() writes the properties of the callback skeleton class
2172 private void writePropertiesJavaCallbackSkeleton(String intface, boolean callbackExist) {
2174 println("private " + intface + " mainObj;");
2175 // For callback skeletons, this is its own object Id
2176 println("private int objectId = 0;");
2178 if (callbackExist) {
2179 println("private static int objIdCnt = 0;");
2180 println("private IoTRMICall rmiCall;");
2187 * HELPER: writeConstructorJavaCallbackSkeleton() writes the constructor of the skeleton class
2189 private void writeConstructorJavaCallbackSkeleton(String newSkelClass, String intface, InterfaceDecl intDecl, Collection<String> methods) {
2191 println("public " + newSkelClass + "(" + intface + " _mainObj, int _objectId) throws Exception {");
2192 println("mainObj = _mainObj;");
2193 println("objectId = _objectId;");
2199 * HELPER: writeMethodHelperJavaCallbackSkeleton() writes the method helper of the callback skeleton class
2201 private void writeMethodHelperJavaCallbackSkeleton(Collection<String> methods, InterfaceDecl intDecl, Set<String> callbackClasses) {
2203 // Use this set to handle two same methodIds
2204 Set<String> uniqueMethodIds = new HashSet<String>();
2205 for (String method : methods) {
2207 List<String> methParams = intDecl.getMethodParams(method);
2208 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2209 if (isStructPresent(methParams, methPrmTypes)) { // Treat struct differently
2210 String methodId = intDecl.getMethodId(method);
2211 print("public void ___");
2212 String helperMethod = methodId;
2213 if (uniqueMethodIds.contains(methodId))
2214 helperMethod = helperMethod + intDecl.getMethodNumId(method);
2216 uniqueMethodIds.add(methodId);
2217 String retType = intDecl.getMethodType(method);
2218 print(helperMethod + "(");
2219 boolean begin = true;
2220 for (int i = 0; i < methParams.size(); i++) { // Print size variables
2221 String paramType = methPrmTypes.get(i);
2222 String param = methParams.get(i);
2223 String simpleType = getGenericType(paramType);
2224 if (isStructClass(simpleType)) {
2225 if (!begin) { // Generate comma for not the beginning variable
2226 print(", "); begin = false;
2228 int methodNumId = intDecl.getMethodNumId(method);
2229 print("int struct" + methodNumId + "Size" + i);
2232 // Check if this is "void"
2233 if (retType.equals("void"))
2234 println(", IoTRMIObject rmiObj) {");
2236 println(", IoTRMIObject rmiObj) throws IOException {");
2237 writeMethodHelperStructJavaSkeleton(intDecl, methParams, methPrmTypes, method, callbackClasses);
2240 String methodId = intDecl.getMethodId(method);
2241 print("public void ___");
2242 String helperMethod = methodId;
2243 if (uniqueMethodIds.contains(methodId))
2244 helperMethod = helperMethod + intDecl.getMethodNumId(method);
2246 uniqueMethodIds.add(methodId);
2247 // Check if this is "void"
2248 String retType = intDecl.getMethodType(method);
2249 if (retType.equals("void"))
2250 println(helperMethod + "(IoTRMIObject rmiObj) {");
2252 println(helperMethod + "(IoTRMIObject rmiObj) throws IOException {");
2253 // Now, write the helper body of skeleton!
2254 writeStdMethodHelperBodyJavaSkeleton(intDecl, methParams, methPrmTypes, method, callbackClasses);
2258 // Write method helper for structs
2259 writeMethodHelperStructSetupJavaCallbackSkeleton(methods, intDecl);
2264 * HELPER: writeJavaCallbackWaitRequestInvokeMethod() writes the request invoke method of the callback skeleton class
2266 private void writeJavaCallbackWaitRequestInvokeMethod(Collection<String> methods, InterfaceDecl intDecl, boolean callbackExist) {
2268 // Use this set to handle two same methodIds
2269 Set<String> uniqueMethodIds = new HashSet<String>();
2270 println("public void invokeMethod(IoTRMIObject rmiObj) throws IOException {");
2271 // Write variables here if we have callbacks or enums or structs
2272 writeCountVarStructSkeleton(methods, intDecl);
2273 // Write variables here if we have callbacks or enums or structs
2274 println("int methodId = rmiObj.getMethodId();");
2275 // TODO: code the permission check here!
2276 println("switch (methodId) {");
2277 // Print methods and method Ids
2278 for (String method : methods) {
2279 String methodId = intDecl.getMethodId(method);
2280 int methodNumId = intDecl.getMethodNumId(method);
2281 print("case " + methodNumId + ": ___");
2282 String helperMethod = methodId;
2283 if (uniqueMethodIds.contains(methodId))
2284 helperMethod = helperMethod + methodNumId;
2286 uniqueMethodIds.add(methodId);
2287 print(helperMethod + "(");
2288 if (writeInputCountVarStructSkeleton(method, intDecl))
2289 println(", rmiObj); break;");
2291 println("rmiObj); break;");
2293 String method = "___initCallBack()";
2294 // Print case -9999 (callback handler) if callback exists
2295 if (callbackExist) {
2296 int methodId = intDecl.getHelperMethodNumId(method);
2297 println("case " + methodId + ": ___regCB(rmiObj); break;");
2299 writeMethodCallStructCallbackSkeleton(methods, intDecl);
2300 println("default: ");
2301 println("throw new Error(\"Method Id \" + methodId + \" not recognized!\");");
2308 * generateJavaCallbackSkeletonClass() generate callback skeletons based on the methods list in Java
2310 public void generateJavaCallbackSkeletonClass() throws IOException {
2312 // Create a new directory
2313 String path = createDirectories(dir, subdir);
2314 for (String intface : mapIntfacePTH.keySet()) {
2315 // Open a new file to write into
2316 String newSkelClass = intface + "_CallbackSkeleton";
2317 FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".java");
2318 pw = new PrintWriter(new BufferedWriter(fw));
2319 // Pass in set of methods and get import classes
2320 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2321 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
2322 List<String> methods = intDecl.getMethods();
2323 Set<String> importClasses = getImportClasses(methods, intDecl);
2324 List<String> stdImportClasses = getStandardJavaImportClasses();
2325 List<String> allImportClasses = getAllLibClasses(stdImportClasses, importClasses);
2326 printImportStatements(allImportClasses);
2327 // Find out if there are callback objects
2328 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
2329 boolean callbackExist = !callbackClasses.isEmpty();
2330 // Write class header
2332 println("public class " + newSkelClass + " implements " + intface + " {\n");
2334 writePropertiesJavaCallbackSkeleton(intface, callbackExist);
2335 // Write constructor
2336 writeConstructorJavaCallbackSkeleton(newSkelClass, intface, intDecl, methods);
2338 writeMethodJavaSkeleton(methods, intDecl, callbackClasses, true);
2339 // Write method helper
2340 writeMethodHelperJavaCallbackSkeleton(methods, intDecl, callbackClasses);
2341 // Write waitRequestInvokeMethod() - main loop
2342 writeJavaCallbackWaitRequestInvokeMethod(methods, intDecl, callbackExist);
2345 System.out.println("IoTCompiler: Generated callback skeleton class " + newSkelClass + ".java...");
2351 * HELPER: writeMethodCplusLocalInterface() writes the method of the local interface
2353 private void writeMethodCplusLocalInterface(Collection<String> methods, InterfaceDecl intDecl) {
2355 for (String method : methods) {
2357 List<String> methParams = intDecl.getMethodParams(method);
2358 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2359 print("virtual " + checkAndGetCplusType(intDecl.getMethodType(method)) + " " +
2360 intDecl.getMethodId(method) + "(");
2361 for (int i = 0; i < methParams.size(); i++) {
2362 // Check for params with driver class types and exchange it
2363 // with its remote interface
2364 String paramType = checkAndGetParamClass(methPrmTypes.get(i));
2365 paramType = checkAndGetCplusType(paramType);
2366 // Check for arrays - translate into vector in C++
2367 String paramComplete = checkAndGetCplusArray(paramType, methParams.get(i));
2368 print(paramComplete);
2369 // Check if this is the last element (don't print a comma)
2370 if (i != methParams.size() - 1) {
2380 * HELPER: writeMethodCplusInterface() writes the method of the interface
2382 private void writeMethodCplusInterface(Collection<String> methods, InterfaceDecl intDecl) {
2384 for (String method : methods) {
2386 List<String> methParams = intDecl.getMethodParams(method);
2387 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2388 print("virtual " + checkAndGetCplusType(intDecl.getMethodType(method)) + " " +
2389 intDecl.getMethodId(method) + "(");
2390 for (int i = 0; i < methParams.size(); i++) {
2391 // Check for params with driver class types and exchange it
2392 // with its remote interface
2393 String paramType = methPrmTypes.get(i);
2394 paramType = checkAndGetCplusType(paramType);
2395 // Check for arrays - translate into vector in C++
2396 String paramComplete = checkAndGetCplusArray(paramType, methParams.get(i));
2397 print(paramComplete);
2398 // Check if this is the last element (don't print a comma)
2399 if (i != methParams.size() - 1) {
2409 * HELPER: generateEnumCplus() writes the enumeration declaration
2411 public void generateEnumCplus() throws IOException {
2413 // Create a new directory
2414 createDirectory(dir);
2415 for (String intface : mapIntfacePTH.keySet()) {
2416 // Get the right StructDecl
2417 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2418 EnumDecl enumDecl = (EnumDecl) decHandler.getEnumDecl(intface);
2419 Set<String> enumTypes = enumDecl.getEnumDeclarations();
2420 // Iterate over enum declarations
2421 for (String enType : enumTypes) {
2422 // Open a new file to write into
2423 FileWriter fw = new FileWriter(dir + "/" + enType + ".hpp");
2424 pw = new PrintWriter(new BufferedWriter(fw));
2425 // Write file headers
2426 println("#ifndef _" + enType.toUpperCase() + "_HPP__");
2427 println("#define _" + enType.toUpperCase() + "_HPP__");
2428 println("enum " + enType + " {");
2429 List<String> enumMembers = enumDecl.getMembers(enType);
2430 for (int i = 0; i < enumMembers.size(); i++) {
2432 String member = enumMembers.get(i);
2434 // Check if this is the last element (don't print a comma)
2435 if (i != enumMembers.size() - 1)
2443 System.out.println("IoTCompiler: Generated enum " + enType + ".hpp...");
2450 * HELPER: generateStructCplus() writes the struct declaration
2452 public void generateStructCplus() throws IOException {
2454 // Create a new directory
2455 createDirectory(dir);
2456 for (String intface : mapIntfacePTH.keySet()) {
2457 // Get the right StructDecl
2458 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2459 StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface);
2460 List<String> structTypes = structDecl.getStructTypes();
2461 // Iterate over enum declarations
2462 for (String stType : structTypes) {
2463 // Open a new file to write into
2464 FileWriter fw = new FileWriter(dir + "/" + stType + ".hpp");
2465 pw = new PrintWriter(new BufferedWriter(fw));
2466 // Write file headers
2467 println("#ifndef _" + stType.toUpperCase() + "_HPP__");
2468 println("#define _" + stType.toUpperCase() + "_HPP__");
2469 println("using namespace std;");
2470 println("struct " + stType + " {");
2471 List<String> structMemberTypes = structDecl.getMemberTypes(stType);
2472 List<String> structMembers = structDecl.getMembers(stType);
2473 for (int i = 0; i < structMembers.size(); i++) {
2475 String memberType = structMemberTypes.get(i);
2476 String member = structMembers.get(i);
2477 String structTypeC = checkAndGetCplusType(memberType);
2478 String structComplete = checkAndGetCplusArray(structTypeC, member);
2479 println(structComplete + ";");
2484 System.out.println("IoTCompiler: Generated struct " + stType + ".hpp...");
2491 * generateCplusLocalInterfaces() writes the local interfaces and provides type-checking.
2493 * It needs to rewrite and exchange USERDEFINED types in input parameters of stub
2494 * and original interfaces, e.g. exchange Camera and CameraWithVideoAndRecording.
2495 * The local interface has to be the input parameter for the stub and the stub
2496 * interface has to be the input parameter for the local class.
2498 public void generateCplusLocalInterfaces() throws IOException {
2500 // Create a new directory
2501 createDirectory(dir);
2502 for (String intface : mapIntfacePTH.keySet()) {
2503 // Open a new file to write into
2504 FileWriter fw = new FileWriter(dir + "/" + intface + ".hpp");
2505 pw = new PrintWriter(new BufferedWriter(fw));
2506 // Write file headers
2507 println("#ifndef _" + intface.toUpperCase() + "_HPP__");
2508 println("#define _" + intface.toUpperCase() + "_HPP__");
2509 println("#include <iostream>");
2510 // Pass in set of methods and get include classes
2511 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2512 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
2513 List<String> methods = intDecl.getMethods();
2514 Set<String> includeClasses = getIncludeClasses(methods, intDecl, intface, true);
2515 printIncludeStatements(includeClasses); println("");
2516 println("using namespace std;\n");
2517 //writeStructCplus(structDecl);
2518 println("class " + intface); println("{");
2521 writeMethodCplusLocalInterface(methods, intDecl);
2525 System.out.println("IoTCompiler: Generated local interface " + intface + ".hpp...");
2531 * generateCPlusInterfaces() generate stub interfaces based on the methods list in C++
2533 * For C++ we use virtual classe as interface
2535 public void generateCPlusInterfaces() throws IOException {
2537 // Create a new directory
2538 String path = createDirectories(dir, subdir);
2539 for (String intface : mapIntfacePTH.keySet()) {
2541 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
2542 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
2544 // Open a new file to write into
2545 String newIntface = intMeth.getKey();
2546 FileWriter fw = new FileWriter(path + "/" + newIntface + ".hpp");
2547 pw = new PrintWriter(new BufferedWriter(fw));
2548 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2549 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
2550 // Write file headers
2551 println("#ifndef _" + newIntface.toUpperCase() + "_HPP__");
2552 println("#define _" + newIntface.toUpperCase() + "_HPP__");
2553 println("#include <iostream>");
2554 // Pass in set of methods and get import classes
2555 Set<String> includeClasses = getIncludeClasses(intMeth.getValue(), intDecl, intface, false);
2556 List<String> stdIncludeClasses = getStandardCplusIncludeClasses();
2557 List<String> allIncludeClasses = getAllLibClasses(stdIncludeClasses, includeClasses);
2558 printIncludeStatements(allIncludeClasses); println("");
2559 println("using namespace std;\n");
2560 println("class " + newIntface);
2564 writeMethodCplusInterface(intMeth.getValue(), intDecl);
2568 System.out.println("IoTCompiler: Generated interface " + newIntface + ".hpp...");
2575 * HELPER: writeMethodCplusStub() writes the methods of the stub
2577 private void writeMethodCplusStub(Collection<String> methods, InterfaceDecl intDecl, Set<String> callbackClasses) {
2579 boolean isDefined = false;
2580 for (String method : methods) {
2582 List<String> methParams = intDecl.getMethodParams(method);
2583 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2584 print(checkAndGetCplusType(intDecl.getMethodType(method)) + " " +
2585 intDecl.getMethodId(method) + "(");
2586 boolean isCallbackMethod = false;
2587 String callbackType = null;
2588 for (int i = 0; i < methParams.size(); i++) {
2590 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
2591 // Check if this has callback object
2592 if (callbackClasses.contains(paramType)) {
2593 isCallbackMethod = true;
2594 callbackType = paramType;
2595 // Even if there're 2 callback arguments, we expect them to be of the same interface
2597 String methPrmType = checkAndGetCplusType(methPrmTypes.get(i));
2598 String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i));
2599 print(methParamComplete);
2600 // Check if this is the last element (don't print a comma)
2601 if (i != methParams.size() - 1) {
2606 if (isCallbackMethod)
2607 writeCallbackMethodBodyCplusStub(intDecl, methParams, methPrmTypes, method, callbackType);
2609 writeStdMethodBodyCplusStub(intDecl, methParams, methPrmTypes, method, callbackClasses);
2611 // Write the init callback helper method
2612 if (isCallbackMethod && !isDefined) {
2613 writeInitCallbackCplusStub(callbackType, intDecl);
2614 writeInitCallbackSendInfoCplusStub(intDecl);
2622 * HELPER: writeCallbackMethodBodyCplusStub() writes the callback method of the stub class
2624 private void writeCallbackMethodBodyCplusStub(InterfaceDecl intDecl, List<String> methParams,
2625 List<String> methPrmTypes, String method, String callbackType) {
2627 // Check if this is single object, array, or list of objects
2628 boolean isArrayOrList = false;
2629 String callbackParam = null;
2630 for (int i = 0; i < methParams.size(); i++) {
2632 String paramType = methPrmTypes.get(i);
2633 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
2634 String param = methParams.get(i);
2635 if (isArrayOrList(paramType, param)) { // Generate loop
2636 println("for (" + getGenericType(paramType) + "* cb : " + getSimpleIdentifier(param) + ") {");
2637 println(callbackType + "_CallbackSkeleton* skel = new " + callbackType + "_CallbackSkeleton(cb, objIdCnt++);");
2638 isArrayOrList = true;
2639 callbackParam = getSimpleIdentifier(param);
2641 println(callbackType + "_CallbackSkeleton* skel = new " + callbackType + "_CallbackSkeleton(" +
2642 getSimpleIdentifier(param) + ", objIdCnt++);");
2643 println("vecCallbackObj.push_back(skel);");
2648 println("int numParam = " + methParams.size() + ";");
2649 println("int methodId = " + intDecl.getMethodNumId(method) + ";");
2650 String retType = intDecl.getMethodType(method);
2651 //String retTypeC = checkAndGetCplusType(retType);
2652 //println("string retType = \"" + checkAndGetCplusArrayType(getStructType(getEnumType(retTypeC))) + "\";");
2653 println("string retType = \"" + checkAndGetCplusRetClsType(getStructType(getEnumType(retType))) + "\";");
2654 // Generate array of parameter types
2655 print("string paramCls[] = { ");
2656 for (int i = 0; i < methParams.size(); i++) {
2657 String paramType = methPrmTypes.get(i);
2658 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
2660 } else { // Generate normal classes if it's not a callback object
2661 String paramTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i));
2662 print("\"" + paramTypeC + "\"");
2664 if (i != methParams.size() - 1) // Check if this is the last element
2668 print("int ___paramCB = ");
2670 println(callbackParam + ".size();");
2673 // Generate array of parameter objects
2674 print("void* paramObj[] = { ");
2675 for (int i = 0; i < methParams.size(); i++) {
2676 String paramType = methPrmTypes.get(i);
2677 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
2678 print("&___paramCB");
2680 print("&" + getSimpleIdentifier(methParams.get(i)));
2681 if (i != methParams.size() - 1)
2685 // Check if this is "void"
2686 if (retType.equals("void")) {
2687 println("void* retObj = NULL;");
2688 println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retObj);");
2689 } else { // We do have a return value
2690 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
2691 println(checkAndGetCplusType(retType) + " retVal;");
2693 println(checkAndGetCplusType(retType) + " retVal = " + generateCplusInitializer(retType) + ";");
2694 println("void* retObj = &retVal;");
2695 println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retObj);");
2696 println("return retVal;");
2702 * HELPER: checkAndWriteEnumTypeCplusStub() writes the enum type (convert from enum to int)
2704 private void checkAndWriteEnumTypeCplusStub(List<String> methParams, List<String> methPrmTypes) {
2706 // Iterate and find enum declarations
2707 for (int i = 0; i < methParams.size(); i++) {
2708 String paramType = methPrmTypes.get(i);
2709 String param = methParams.get(i);
2710 if (isEnumClass(getGenericType(paramType))) {
2711 // Check if this is enum type
2712 if (isArrayOrList(paramType, param)) { // An array or vector
2713 println("int len" + i + " = " + getSimpleIdentifier(param) + ".size();");
2714 println("vector<int> paramEnum" + i + "(len" + i + ");");
2715 println("for (int i = 0; i < len" + i + "; i++) {");
2716 println("paramEnum" + i + "[i] = (int) " + getSimpleIdentifier(param) + "[i];");
2718 } else { // Just one element
2719 println("vector<int> paramEnum" + i + "(1);");
2720 println("paramEnum" + i + "[0] = (int) " + param + ";");
2728 * HELPER: checkAndWriteEnumRetTypeCplusStub() writes the enum return type (convert from enum to int)
2730 private void checkAndWriteEnumRetTypeCplusStub(String retType) {
2732 // Strips off array "[]" for return type
2733 String pureType = getSimpleArrayType(getGenericType(retType));
2734 // Take the inner type of generic
2735 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
2736 pureType = getGenericType(retType);
2737 if (isEnumClass(pureType)) {
2738 // Check if this is enum type
2739 println("vector<int> retEnumInt;");
2740 println("void* retObj = &retEnumInt;");
2741 println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retObj);");
2742 if (isArrayOrList(retType, retType)) { // An array or vector
2743 println("int retLen = retEnumInt.size();");
2744 println("vector<" + pureType + "> retVal(retLen);");
2745 println("for (int i = 0; i < retLen; i++) {");
2746 println("retVal[i] = (" + pureType + ") retEnumInt[i];");
2748 } else { // Just one element
2749 println(pureType + " retVal = (" + pureType + ") retEnumInt[0];");
2751 println("return retVal;");
2757 * HELPER: checkAndWriteStructSetupCplusStub() writes the struct type setup
2759 private void checkAndWriteStructSetupCplusStub(List<String> methParams, List<String> methPrmTypes,
2760 InterfaceDecl intDecl, String method) {
2762 // Iterate and find struct declarations
2763 for (int i = 0; i < methParams.size(); i++) {
2764 String paramType = methPrmTypes.get(i);
2765 String param = methParams.get(i);
2766 String simpleType = getGenericType(paramType);
2767 if (isStructClass(simpleType)) {
2768 // Check if this is enum type
2769 println("int numParam" + i + " = 1;");
2770 int methodNumId = intDecl.getMethodNumId(method);
2771 String helperMethod = methodNumId + "struct" + i;
2772 println("int methodIdStruct" + i + " = " + intDecl.getHelperMethodNumId(helperMethod) + ";");
2773 println("string retTypeStruct" + i + " = \"void\";");
2774 println("string paramClsStruct" + i + "[] = { \"int\" };");
2775 print("int structLen" + i + " = ");
2776 if (isArrayOrList(paramType, param)) { // An array
2777 println(getSimpleArrayType(param) + ".size();");
2778 } else { // Just one element
2781 println("void* paramObjStruct" + i + "[] = { &structLen" + i + " };");
2782 println("void* retStructLen" + i + " = NULL;");
2783 println("rmiCall->remoteCall(objectId, methodIdStruct" + i +
2784 ", retTypeStruct" + i + ", paramClsStruct" + i + ", paramObjStruct" + i +
2785 ", numParam" + i + ", retStructLen" + i + ");\n");
2792 * HELPER: writeLengthStructParamClassCplusStub() writes lengths of params
2794 private void writeLengthStructParamClassCplusStub(List<String> methParams, List<String> methPrmTypes) {
2796 // Iterate and find struct declarations - count number of params
2797 for (int i = 0; i < methParams.size(); i++) {
2798 String paramType = methPrmTypes.get(i);
2799 String param = methParams.get(i);
2800 String simpleType = getGenericType(paramType);
2801 if (isStructClass(simpleType)) {
2802 int members = getNumOfMembers(simpleType);
2803 if (isArrayOrList(paramType, param)) { // An array or list
2804 String structLen = getSimpleIdentifier(param) + ".size()";
2805 print(members + "*" + structLen);
2807 print(Integer.toString(members));
2810 if (i != methParams.size() - 1) {
2818 * HELPER: writeStructMembersCplusStub() writes member parameters of struct
2820 private void writeStructMembersCplusStub(String simpleType, String paramType, String param) {
2822 // Get the struct declaration for this struct and generate initialization code
2823 StructDecl structDecl = getStructDecl(simpleType);
2824 List<String> memTypes = structDecl.getMemberTypes(simpleType);
2825 List<String> members = structDecl.getMembers(simpleType);
2826 if (isArrayOrList(paramType, param)) { // An array or list
2827 println("for(int i = 0; i < " + getSimpleIdentifier(param) + ".size(); i++) {");
2829 if (isArrayOrList(paramType, param)) { // An array or list
2830 for (int i = 0; i < members.size(); i++) {
2831 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
2832 println("paramCls[pos] = \"" + prmTypeC + "\";");
2833 print("paramObj[pos++] = &" + getSimpleIdentifier(param) + "[i].");
2834 print(getSimpleIdentifier(members.get(i)));
2838 } else { // Just one struct element
2839 for (int i = 0; i < members.size(); i++) {
2840 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
2841 println("paramCls[pos] = \"" + prmTypeC + "\";");
2842 print("paramObj[pos++] = &" + param + ".");
2843 print(getSimpleIdentifier(members.get(i)));
2851 * HELPER: writeStructParamClassCplusStub() writes member parameters of struct
2853 private void writeStructParamClassCplusStub(List<String> methParams, List<String> methPrmTypes) {
2855 print("int numParam = ");
2856 writeLengthStructParamClassCplusStub(methParams, methPrmTypes);
2858 println("void* paramObj[numParam];");
2859 println("string paramCls[numParam];");
2860 println("int pos = 0;");
2861 // Iterate again over the parameters
2862 for (int i = 0; i < methParams.size(); i++) {
2863 String paramType = methPrmTypes.get(i);
2864 String param = methParams.get(i);
2865 String simpleType = getGenericType(paramType);
2866 if (isStructClass(simpleType)) {
2867 writeStructMembersCplusStub(simpleType, paramType, param);
2869 String prmTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i));
2870 println("paramCls[pos] = \"" + prmTypeC + "\";");
2871 print("paramObj[pos++] = &");
2872 print(getEnumParam(methPrmTypes.get(i), getSimpleIdentifier(methParams.get(i)), i));
2881 * HELPER: writeStructRetMembersCplusStub() writes member parameters of struct for return statement
2883 private void writeStructRetMembersCplusStub(String simpleType, String retType) {
2885 // Get the struct declaration for this struct and generate initialization code
2886 StructDecl structDecl = getStructDecl(simpleType);
2887 List<String> memTypes = structDecl.getMemberTypes(simpleType);
2888 List<String> members = structDecl.getMembers(simpleType);
2889 if (isArrayOrList(retType, retType)) { // An array or list
2890 println("for(int i = 0; i < retLen; i++) {");
2892 if (isArrayOrList(retType, retType)) { // An array or list
2893 for (int i = 0; i < members.size(); i++) {
2894 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
2895 print("structRet[i]." + getSimpleIdentifier(members.get(i)));
2896 println(" = retParam" + i + "[i];");
2899 } else { // Just one struct element
2900 for (int i = 0; i < members.size(); i++) {
2901 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
2902 print("structRet." + getSimpleIdentifier(members.get(i)));
2903 println(" = retParam" + i + ";");
2906 println("return structRet;");
2911 * HELPER: writeStructReturnCplusStub() writes member parameters of struct for return statement
2913 private void writeStructReturnCplusStub(String simpleType, String retType) {
2915 // Minimum retLen is 1 if this is a single struct object
2916 println("int retLen = 0;");
2917 println("void* retLenObj = { &retLen };");
2918 // Handle the returned struct!!!
2919 println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retLenObj);");
2920 int numMem = getNumOfMembers(simpleType);
2921 println("int numRet = " + numMem + "*retLen;");
2922 println("string retCls[numRet];");
2923 println("void* retObj[numRet];");
2924 StructDecl structDecl = getStructDecl(simpleType);
2925 List<String> memTypes = structDecl.getMemberTypes(simpleType);
2926 List<String> members = structDecl.getMembers(simpleType);
2928 if (isArrayOrList(retType, retType)) { // An array or list
2929 for (int i = 0; i < members.size(); i++) {
2930 String prmTypeC = checkAndGetCplusType(memTypes.get(i));
2931 String prmType = checkAndGetCplusArrayType(prmTypeC, members.get(i));
2932 println(getSimpleType(getEnumType(prmType)) + " retParam" + i + "[retLen];");
2934 } else { // Just one struct element
2935 for (int i = 0; i < members.size(); i++) {
2936 String prmTypeC = checkAndGetCplusType(memTypes.get(i));
2937 String prmType = checkAndGetCplusArrayType(prmTypeC, members.get(i));
2938 println(getSimpleType(getEnumType(prmType)) + " retParam" + i + ";");
2941 println("int retPos = 0;");
2942 // Get the struct declaration for this struct and generate initialization code
2943 if (isArrayOrList(retType, retType)) { // An array or list
2944 println("for(int i = 0; i < retLen; i++) {");
2945 for (int i = 0; i < members.size(); i++) {
2946 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
2947 println("retCls[retPos] = \"" + prmTypeC + "\";");
2948 println("retObj[retPos++] = &retParam" + i + "[i];");
2951 } else { // Just one struct element
2952 for (int i = 0; i < members.size(); i++) {
2953 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
2954 println("retCls[retPos] = \"" + prmTypeC + "\";");
2955 println("retObj[retPos++] = &retParam" + i + ";");
2958 println("rmiCall->getStructObjects(retCls, numRet, retObj);");
2959 if (isArrayOrList(retType, retType)) { // An array or list
2960 println("vector<" + simpleType + "> structRet(retLen);");
2962 println(simpleType + " structRet;");
2963 writeStructRetMembersCplusStub(simpleType, retType);
2968 * HELPER: writeStdMethodBodyCplusStub() writes the standard method body in the stub class
2970 private void writeStdMethodBodyCplusStub(InterfaceDecl intDecl, List<String> methParams,
2971 List<String> methPrmTypes, String method, Set<String> callbackClasses) {
2973 checkAndWriteStructSetupCplusStub(methParams, methPrmTypes, intDecl, method);
2974 println("int methodId = " + intDecl.getMethodNumId(method) + ";");
2975 String retType = intDecl.getMethodType(method);
2976 println("string retType = \"" + checkAndGetCplusRetClsType(getStructType(getEnumType(retType))) + "\";");
2977 checkAndWriteEnumTypeCplusStub(methParams, methPrmTypes);
2978 // Generate array of parameter types
2979 if (isStructPresent(methParams, methPrmTypes)) {
2980 writeStructParamClassCplusStub(methParams, methPrmTypes);
2982 println("int numParam = " + methParams.size() + ";");
2983 print("string paramCls[] = { ");
2984 for (int i = 0; i < methParams.size(); i++) {
2985 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
2986 if (callbackClasses.contains(paramType)) {
2989 String paramTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i));
2990 print("\"" + paramTypeC + "\"");
2992 // Check if this is the last element (don't print a comma)
2993 if (i != methParams.size() - 1) {
2998 // Generate array of parameter objects
2999 print("void* paramObj[] = { ");
3000 for (int i = 0; i < methParams.size(); i++) {
3001 print("&" + getEnumParam(methPrmTypes.get(i), getSimpleIdentifier(methParams.get(i)), i));
3002 // Check if this is the last element (don't print a comma)
3003 if (i != methParams.size() - 1) {
3009 // Check if this is "void"
3010 if (retType.equals("void")) {
3011 println("void* retObj = NULL;");
3012 println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retObj);");
3013 } else { // We do have a return value
3014 // Generate array of parameter types
3015 if (isStructClass(getGenericType(getSimpleArrayType(retType)))) {
3016 writeStructReturnCplusStub(getGenericType(getSimpleArrayType(retType)), retType);
3018 // Check if the return value NONPRIMITIVES
3019 if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) {
3020 checkAndWriteEnumRetTypeCplusStub(retType);
3022 //if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
3023 if (isArrayOrList(retType,retType))
3024 println(checkAndGetCplusType(retType) + " retVal;");
3026 println(checkAndGetCplusType(retType) + " retVal = " + generateCplusInitializer(retType) + ";");
3028 println("void* retObj = &retVal;");
3029 println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retObj);");
3030 println("return retVal;");
3038 * HELPER: writePropertiesCplusStub() writes the properties of the stub class
3040 private void writePropertiesCplusPermission(String intface) {
3042 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3043 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3044 String newIntface = intMeth.getKey();
3045 int newObjectId = getNewIntfaceObjectId(newIntface);
3046 println("const static int object" + newObjectId + "Id = " + newObjectId + ";\t//" + newIntface);
3047 println("static set<int> set" + newObjectId + "Allowed;");
3052 * HELPER: writePropertiesCplusStub() writes the properties of the stub class
3054 private void writePropertiesCplusStub(String intface, String newIntface, boolean callbackExist, Set<String> callbackClasses) {
3056 println("IoTRMICall *rmiCall;");
3057 //println("IoTRMIObject\t\t\t*rmiObj;");
3058 println("string address;");
3059 println("vector<int> ports;\n");
3060 // Get the object Id
3061 Integer objId = mapIntfaceObjId.get(intface);
3062 println("const static int objectId = " + objId + ";");
3063 mapNewIntfaceObjId.put(newIntface, objId);
3064 mapIntfaceObjId.put(intface, objId++);
3065 if (callbackExist) {
3066 // We assume that each class only has one callback interface for now
3067 Iterator it = callbackClasses.iterator();
3068 String callbackType = (String) it.next();
3069 println("// Callback properties");
3070 println("IoTRMIObject *rmiObj;");
3071 println("vector<" + callbackType + "*> vecCallbackObj;");
3072 println("static int objIdCnt;");
3073 // Generate permission stuff for callback stubs
3074 writePropertiesCplusPermission(callbackType);
3081 * HELPER: writeConstructorCplusStub() writes the constructor of the stub class
3083 private void writeConstructorCplusStub(String newStubClass, boolean callbackExist, Set<String> callbackClasses) {
3085 println(newStubClass +
3086 "(int _port, const char* _address, int _rev, bool* _bResult, vector<int> _ports) {");
3087 println("address = _address;");
3088 println("ports = _ports;");
3089 println("rmiCall = new IoTRMICall(_port, _address, _rev, _bResult);");
3090 if (callbackExist) {
3091 Iterator it = callbackClasses.iterator();
3092 String callbackType = (String) it.next();
3093 println("thread th1 (&" + newStubClass + "::___initCallBack, this);");
3094 println("th1.detach();");
3095 println("___regCB();");
3102 * HELPER: writeDeconstructorCplusStub() writes the deconstructor of the stub class
3104 private void writeDeconstructorCplusStub(String newStubClass, boolean callbackExist, Set<String> callbackClasses) {
3106 println("~" + newStubClass + "() {");
3107 println("if (rmiCall != NULL) {");
3108 println("delete rmiCall;");
3109 println("rmiCall = NULL;");
3111 if (callbackExist) {
3112 // We assume that each class only has one callback interface for now
3113 println("if (rmiObj != NULL) {");
3114 println("delete rmiObj;");
3115 println("rmiObj = NULL;");
3117 Iterator it = callbackClasses.iterator();
3118 String callbackType = (String) it.next();
3119 println("for(" + callbackType + "* cb : vecCallbackObj) {");
3120 println("delete cb;");
3121 println("cb = NULL;");
3130 * HELPER: writeCplusMethodCallbackPermission() writes permission checks in stub for callbacks
3132 private void writeCplusMethodCallbackPermission(String intface) {
3134 println("int methodId = IoTRMIObject::getMethodId(method);");
3135 // Get all the different stubs
3136 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3137 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3138 String newIntface = intMeth.getKey();
3139 int newObjectId = getNewIntfaceObjectId(newIntface);
3140 println("if (set" + newObjectId + "Allowed.find(methodId) == set" + newObjectId + "Allowed.end()) {");
3141 println("cerr << \"Callback object for " + intface + " is not allowed to access method: \" << methodId;");
3149 * HELPER: writeInitCallbackCplusStub() writes the initialization of callback
3151 private void writeInitCallbackCplusStub(String intface, InterfaceDecl intDecl) {
3153 println("void ___initCallBack() {");
3154 println("bool bResult = false;");
3155 println("rmiObj = new IoTRMIObject(ports[0], &bResult);");
3156 println("while (true) {");
3157 println("char* method = rmiObj->getMethodBytes();");
3158 writeCplusMethodCallbackPermission(intface);
3159 println("int objId = IoTRMIObject::getObjectId(method);");
3160 println("if (objId < vecCallbackObj.size()) { // Check if still within range");
3161 println(intface + "_CallbackSkeleton* skel = dynamic_cast<" + intface +
3162 "_CallbackSkeleton*> (vecCallbackObj.at(objId));");
3163 println("skel->invokeMethod(rmiObj);");
3166 println("cerr << \"Illegal object Id: \" << to_string(objId);");
3167 // TODO: perhaps need to change this into "throw" to make it cleaner (allow stack unfolding)
3176 * HELPER: writeCplusInitCallbackPermission() writes the permission for callback
3178 private void writeCplusInitCallbackPermission(String intface, InterfaceDecl intDecl, boolean callbackExist) {
3180 if (callbackExist) {
3181 String method = "___initCallBack()";
3182 int methodNumId = intDecl.getHelperMethodNumId(method);
3183 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3184 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3185 String newIntface = intMeth.getKey();
3186 int newObjectId = getNewIntfaceObjectId(newIntface);
3187 println("set" + newObjectId + "Allowed.insert(" + methodNumId + ");");
3194 * HELPER: writeInitCallbackSendInfoCplusStub() writes the initialization (send info part) of callback
3196 private void writeInitCallbackSendInfoCplusStub(InterfaceDecl intDecl) {
3198 // Generate info sending part
3199 println("void ___regCB() {");
3200 println("int numParam = 3;");
3201 String method = "___initCallBack()";
3202 int methodNumId = intDecl.getHelperMethodNumId(method);
3203 println("int methodId = " + methodNumId + ";");
3204 //writeCplusCallbackPermission(intface, methodNumId);
3205 println("string retType = \"void\";");
3206 println("string paramCls[] = { \"int\", \"String\", \"int\" };");
3207 println("int rev = 0;");
3208 println("void* paramObj[] = { &ports[0], &address, &rev };");
3209 println("void* retObj = NULL;");
3210 println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retObj);");
3216 * generateCPlusStubClasses() generate stubs based on the methods list in C++
3218 public void generateCPlusStubClasses() throws IOException {
3220 // Create a new directory
3221 String path = createDirectories(dir, subdir);
3222 for (String intface : mapIntfacePTH.keySet()) {
3224 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3225 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3226 // Open a new file to write into
3227 String newIntface = intMeth.getKey();
3228 String newStubClass = newIntface + "_Stub";
3229 FileWriter fw = new FileWriter(path + "/" + newStubClass + ".hpp");
3230 pw = new PrintWriter(new BufferedWriter(fw));
3231 // Write file headers
3232 println("#ifndef _" + newStubClass.toUpperCase() + "_HPP__");
3233 println("#define _" + newStubClass.toUpperCase() + "_HPP__");
3234 println("#include <iostream>");
3235 // Find out if there are callback objects
3236 Set<String> methods = intMeth.getValue();
3237 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
3238 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
3239 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
3240 boolean callbackExist = !callbackClasses.isEmpty();
3241 if (callbackExist) // Need thread library if this has callback
3242 println("#include <thread>");
3243 println("#include \"" + newIntface + ".hpp\""); println("");
3244 println("using namespace std;"); println("");
3245 println("class " + newStubClass + " : public " + newIntface); println("{");
3246 println("private:\n");
3247 writePropertiesCplusStub(intface, newIntface, callbackExist, callbackClasses);
3248 println("public:\n");
3249 // Add default constructor and destructor
3250 println(newStubClass + "() { }"); println("");
3251 writeConstructorCplusStub(newStubClass, callbackExist, callbackClasses);
3252 writeDeconstructorCplusStub(newStubClass, callbackExist, callbackClasses);
3254 writeMethodCplusStub(methods, intDecl, callbackClasses);
3255 print("}"); println(";");
3256 if (callbackExist) {
3257 Iterator it = callbackClasses.iterator();
3258 String callbackType = (String) it.next();
3259 // Generate permission stuff for callback stubs
3260 DeclarationHandler decHandlerCallback = mapIntDeclHand.get(callbackType);
3261 InterfaceDecl intDeclCallback = (InterfaceDecl) decHandlerCallback.getInterfaceDecl(callbackType);
3262 writePermissionInitializationCplus(callbackType, newStubClass, intDeclCallback);
3264 writeObjectIdCountInitializationCplus(newStubClass, callbackExist);
3267 System.out.println("IoTCompiler: Generated stub class " + newStubClass + ".hpp...");
3274 * HELPER: writePropertiesCplusCallbackStub() writes the properties of the stub class
3276 private void writePropertiesCplusCallbackStub(String intface, String newIntface, boolean callbackExist, Set<String> callbackClasses) {
3278 println("IoTRMICall *rmiCall;");
3279 // Get the object Id
3280 println("int objectId;");
3281 if (callbackExist) {
3282 // We assume that each class only has one callback interface for now
3283 Iterator it = callbackClasses.iterator();
3284 String callbackType = (String) it.next();
3285 println("// Callback properties");
3286 println("IoTRMIObject *rmiObj;");
3287 println("vector<" + callbackType + "*> vecCallbackObj;");
3288 println("static int objIdCnt;");
3289 // TODO: Need to initialize address and ports if we want to have callback-in-callback
3290 println("string address;");
3291 println("vector<int> ports;\n");
3292 writePropertiesCplusPermission(callbackType);
3299 * HELPER: writeConstructorCplusCallbackStub() writes the constructor of the stub class
3301 private void writeConstructorCplusCallbackStub(String newStubClass, boolean callbackExist, Set<String> callbackClasses) {
3303 println(newStubClass + "(IoTRMICall* _rmiCall, int _objectId) {");
3304 println("objectId = _objectId;");
3305 println("rmiCall = _rmiCall;");
3306 if (callbackExist) {
3307 Iterator it = callbackClasses.iterator();
3308 String callbackType = (String) it.next();
3309 println("thread th1 (&" + newStubClass + "::___initCallBack, this);");
3310 println("th1.detach();");
3311 println("___regCB();");
3318 * generateCPlusCallbackStubClasses() generate callback stubs based on the methods list in C++
3320 public void generateCPlusCallbackStubClasses() throws IOException {
3322 // Create a new directory
3323 String path = createDirectories(dir, subdir);
3324 for (String intface : mapIntfacePTH.keySet()) {
3326 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3327 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3328 // Open a new file to write into
3329 String newIntface = intMeth.getKey();
3330 String newStubClass = newIntface + "_CallbackStub";
3331 FileWriter fw = new FileWriter(path + "/" + newStubClass + ".hpp");
3332 pw = new PrintWriter(new BufferedWriter(fw));
3333 // Find out if there are callback objects
3334 Set<String> methods = intMeth.getValue();
3335 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
3336 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
3337 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
3338 boolean callbackExist = !callbackClasses.isEmpty();
3339 // Write file headers
3340 println("#ifndef _" + newStubClass.toUpperCase() + "_HPP__");
3341 println("#define _" + newStubClass.toUpperCase() + "_HPP__");
3342 println("#include <iostream>");
3344 println("#include <thread>");
3345 println("#include \"" + newIntface + ".hpp\""); println("");
3346 println("using namespace std;"); println("");
3347 println("class " + newStubClass + " : public " + newIntface); println("{");
3348 println("private:\n");
3349 writePropertiesCplusCallbackStub(intface, newIntface, callbackExist, callbackClasses);
3350 println("public:\n");
3351 // Add default constructor and destructor
3352 println(newStubClass + "() { }"); println("");
3353 writeConstructorCplusCallbackStub(newStubClass, callbackExist, callbackClasses);
3354 writeDeconstructorCplusStub(newStubClass, callbackExist, callbackClasses);
3356 writeMethodCplusStub(methods, intDecl, callbackClasses);
3358 if (callbackExist) {
3359 Iterator it = callbackClasses.iterator();
3360 String callbackType = (String) it.next();
3361 // Generate permission stuff for callback stubs
3362 DeclarationHandler decHandlerCallback = mapIntDeclHand.get(callbackType);
3363 InterfaceDecl intDeclCallback = (InterfaceDecl) decHandlerCallback.getInterfaceDecl(callbackType);
3364 writePermissionInitializationCplus(callbackType, newStubClass, intDeclCallback);
3366 writeObjectIdCountInitializationCplus(newStubClass, callbackExist);
3369 System.out.println("IoTCompiler: Generated callback stub class " + newIntface + ".hpp...");
3376 * HELPER: writePropertiesCplusSkeleton() writes the properties of the skeleton class
3378 private void writePropertiesCplusSkeleton(String intface, boolean callbackExist, Set<String> callbackClasses) {
3380 println(intface + " *mainObj;");
3382 if (callbackExist) {
3383 Iterator it = callbackClasses.iterator();
3384 String callbackType = (String) it.next();
3385 String exchangeType = checkAndGetParamClass(callbackType);
3386 println("// Callback properties");
3387 println("static int objIdCnt;");
3388 println("vector<" + exchangeType + "*> vecCallbackObj;");
3389 println("IoTRMICall *rmiCall;");
3391 println("IoTRMIObject *rmiObj;\n");
3392 // Keep track of object Ids of all stubs registered to this interface
3393 writePropertiesCplusPermission(intface);
3399 * HELPER: writeObjectIdCountInitializationCplus() writes the initialization of objIdCnt variable
3401 private void writeObjectIdCountInitializationCplus(String newSkelClass, boolean callbackExist) {
3404 println("int " + newSkelClass + "::objIdCnt = 0;");
3409 * HELPER: writePermissionInitializationCplus() writes the initialization of permission set
3411 private void writePermissionInitializationCplus(String intface, String newSkelClass, InterfaceDecl intDecl) {
3413 // Keep track of object Ids of all stubs registered to this interface
3414 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3415 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3416 String newIntface = intMeth.getKey();
3417 int newObjectId = getNewIntfaceObjectId(newIntface);
3418 print("set<int> " + newSkelClass + "::set" + newObjectId + "Allowed { ");
3419 Set<String> methodIds = intMeth.getValue();
3421 for (String methodId : methodIds) {
3422 int methodNumId = intDecl.getMethodNumId(methodId);
3423 print(Integer.toString(methodNumId));
3424 // Check if this is the last element (don't print a comma)
3425 if (i != methodIds.size() - 1) {
3436 * HELPER: writeStructPermissionCplusSkeleton() writes permission for struct helper
3438 private void writeStructPermissionCplusSkeleton(Collection<String> methods, InterfaceDecl intDecl, String intface) {
3440 // Use this set to handle two same methodIds
3441 for (String method : methods) {
3442 List<String> methParams = intDecl.getMethodParams(method);
3443 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
3444 // Check for params with structs
3445 for (int i = 0; i < methParams.size(); i++) {
3446 String paramType = methPrmTypes.get(i);
3447 String param = methParams.get(i);
3448 String simpleType = getGenericType(paramType);
3449 if (isStructClass(simpleType)) {
3450 int methodNumId = intDecl.getMethodNumId(method);
3451 String helperMethod = methodNumId + "struct" + i;
3452 int helperMethodNumId = intDecl.getHelperMethodNumId(helperMethod);
3453 // Iterate over interfaces to give permissions to
3454 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3455 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3456 String newIntface = intMeth.getKey();
3457 int newObjectId = getNewIntfaceObjectId(newIntface);
3458 println("set" + newObjectId + "Allowed.insert(" + helperMethodNumId + ");");
3467 * HELPER: writeConstructorCplusSkeleton() writes the constructor of the skeleton class
3469 private void writeConstructorCplusSkeleton(String newSkelClass, String intface, boolean callbackExist, InterfaceDecl intDecl, Collection<String> methods) {
3471 println(newSkelClass + "(" + intface + " *_mainObj, int _port) {");
3472 println("bool _bResult = false;");
3473 println("mainObj = _mainObj;");
3474 println("rmiObj = new IoTRMIObject(_port, &_bResult);");
3475 writeCplusInitCallbackPermission(intface, intDecl, callbackExist);
3476 writeStructPermissionCplusSkeleton(methods, intDecl, intface);
3477 println("___waitRequestInvokeMethod();");
3483 * HELPER: writeDeconstructorCplusSkeleton() writes the deconstructor of the skeleton class
3485 private void writeDeconstructorCplusSkeleton(String newSkelClass, boolean callbackExist, Set<String> callbackClasses) {
3487 println("~" + newSkelClass + "() {");
3488 println("if (rmiObj != NULL) {");
3489 println("delete rmiObj;");
3490 println("rmiObj = NULL;");
3492 if (callbackExist) {
3493 // We assume that each class only has one callback interface for now
3494 println("if (rmiCall != NULL) {");
3495 println("delete rmiCall;");
3496 println("rmiCall = NULL;");
3498 Iterator it = callbackClasses.iterator();
3499 String callbackType = (String) it.next();
3500 String exchangeType = checkAndGetParamClass(callbackType);
3501 println("for(" + exchangeType + "* cb : vecCallbackObj) {");
3502 println("delete cb;");
3503 println("cb = NULL;");
3512 * HELPER: writeStdMethodBodyCplusSkeleton() writes the standard method body in the skeleton class
3514 private void writeStdMethodBodyCplusSkeleton(List<String> methParams, String methodId, String methodType) {
3516 if (methodType.equals("void"))
3517 print("mainObj->" + methodId + "(");
3519 print("return mainObj->" + methodId + "(");
3520 for (int i = 0; i < methParams.size(); i++) {
3522 print(getSimpleIdentifier(methParams.get(i)));
3523 // Check if this is the last element (don't print a comma)
3524 if (i != methParams.size() - 1) {
3533 * HELPER: writeInitCallbackCplusSkeleton() writes the init callback method for skeleton class
3535 private void writeInitCallbackCplusSkeleton(boolean callbackSkeleton) {
3537 // This is a callback skeleton generation
3538 if (callbackSkeleton)
3539 println("void ___regCB(IoTRMIObject* rmiObj) {");
3541 println("void ___regCB() {");
3542 println("int numParam = 3;");
3543 println("int param1 = 0;");
3544 println("string param2 = \"\";");
3545 println("int param3 = 0;");
3546 println("string paramCls[] = { \"int\", \"String\", \"int\" };");
3547 println("void* paramObj[] = { ¶m1, ¶m2, ¶m3 };");
3548 println("rmiObj->getMethodParams(paramCls, numParam, paramObj);");
3549 println("bool bResult = false;");
3550 println("rmiCall = new IoTRMICall(param1, param2.c_str(), param3, &bResult);");
3556 * HELPER: writeMethodCplusSkeleton() writes the method of the skeleton class
3558 private void writeMethodCplusSkeleton(Collection<String> methods, InterfaceDecl intDecl,
3559 Set<String> callbackClasses, boolean callbackSkeleton) {
3561 boolean isDefined = false;
3562 for (String method : methods) {
3564 List<String> methParams = intDecl.getMethodParams(method);
3565 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
3566 String methodId = intDecl.getMethodId(method);
3567 String methodType = checkAndGetCplusType(intDecl.getMethodType(method));
3568 print(methodType + " " + methodId + "(");
3569 boolean isCallbackMethod = false;
3570 String callbackType = null;
3571 for (int i = 0; i < methParams.size(); i++) {
3573 String origParamType = methPrmTypes.get(i);
3574 if (callbackClasses.contains(origParamType)) { // Check if this has callback object
3575 isCallbackMethod = true;
3576 callbackType = origParamType;
3578 String paramType = checkAndGetParamClass(methPrmTypes.get(i));
3579 String methPrmType = checkAndGetCplusType(paramType);
3580 String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i));
3581 print(methParamComplete);
3582 // Check if this is the last element (don't print a comma)
3583 if (i != methParams.size() - 1) {
3588 // Now, write the body of skeleton!
3589 writeStdMethodBodyCplusSkeleton(methParams, methodId, intDecl.getMethodType(method));
3591 if (isCallbackMethod && !isDefined) {
3592 writeInitCallbackCplusSkeleton(callbackSkeleton);
3600 * HELPER: writeCallbackCplusNumStubs() writes the numStubs variable
3602 private void writeCallbackCplusNumStubs(List<String> methParams, List<String> methPrmTypes, String callbackType) {
3604 for (int i = 0; i < methParams.size(); i++) {
3605 String paramType = methPrmTypes.get(i);
3606 String param = methParams.get(i);
3607 //if (callbackType.equals(paramType)) {
3608 if (checkCallbackType(paramType, callbackType)) // Check if this has callback object
3609 println("int numStubs" + i + " = 0;");
3615 * HELPER: writeCallbackCplusStubGeneration() writes the callback stub generation part
3617 private void writeCallbackCplusStubGeneration(List<String> methParams, List<String> methPrmTypes, String callbackType) {
3619 // Iterate over callback objects
3620 for (int i = 0; i < methParams.size(); i++) {
3621 String paramType = methPrmTypes.get(i);
3622 String param = methParams.get(i);
3623 // Generate a loop if needed
3624 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
3625 String exchParamType = checkAndGetParamClass(getGenericType(paramType));
3626 if (isArrayOrList(paramType, param)) {
3627 println("vector<" + exchParamType + "*> stub" + i + ";");
3628 println("for (int objId = 0; objId < numStubs" + i + "; objId++) {");
3629 println(exchParamType + "* cb" + i + " = new " + exchParamType + "_CallbackStub(rmiCall, objIdCnt);");
3630 println("stub" + i + ".push_back(cb" + i + ");");
3631 println("vecCallbackObj.push_back(cb" + i + ");");
3632 println("objIdCnt++;");
3635 println(exchParamType + "* stub" + i + " = new " + exchParamType + "_CallbackStub(rmiCall, objIdCnt);");
3636 println("vecCallbackObj.push_back(stub" + i + ");");
3637 println("objIdCnt++;");
3645 * HELPER: checkAndWriteEnumTypeCplusSkeleton() writes the enum type (convert from enum to int)
3647 private void checkAndWriteEnumTypeCplusSkeleton(List<String> methParams, List<String> methPrmTypes) {
3649 // Iterate and find enum declarations
3650 for (int i = 0; i < methParams.size(); i++) {
3651 String paramType = methPrmTypes.get(i);
3652 String param = methParams.get(i);
3653 String simpleType = getGenericType(paramType);
3654 if (isEnumClass(simpleType)) {
3655 // Check if this is enum type
3656 if (isArrayOrList(paramType, param)) { // An array
3657 println("int len" + i + " = paramEnumInt" + i + ".size();");
3658 println("vector<" + simpleType + "> paramEnum" + i + "(len" + i + ");");
3659 println("for (int i=0; i < len" + i + "; i++) {");
3660 println("paramEnum" + i + "[i] = (" + simpleType + ") paramEnumInt" + i + "[i];");
3662 } else { // Just one element
3663 println(simpleType + " paramEnum" + i + ";");
3664 println("paramEnum" + i + " = (" + simpleType + ") paramEnumInt" + i + "[0];");
3672 * HELPER: checkAndWriteEnumRetTypeCplusSkeleton() writes the enum return type (convert from enum to int)
3674 private void checkAndWriteEnumRetTypeCplusSkeleton(String retType) {
3676 // Strips off array "[]" for return type
3677 String pureType = getSimpleArrayType(getGenericType(retType));
3678 // Take the inner type of generic
3679 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
3680 pureType = getGenericType(retType);
3681 if (isEnumClass(pureType)) {
3682 // Check if this is enum type
3684 if (isArrayOrList(retType, retType)) { // An array
3685 println("int retLen = retEnum.size();");
3686 println("vector<int> retEnumInt(retLen);");
3687 println("for (int i=0; i < retLen; i++) {");
3688 println("retEnumInt[i] = (int) retEnum[i];");
3690 } else { // Just one element
3691 println("vector<int> retEnumInt(1);");
3692 println("retEnumInt[0] = (int) retEnum;");
3699 * HELPER: writeMethodHelperReturnCplusSkeleton() writes the return statement part in skeleton
3701 private void writeMethodInputParameters(List<String> methParams, List<String> methPrmTypes,
3702 Set<String> callbackClasses, String methodId) {
3704 print(methodId + "(");
3705 for (int i = 0; i < methParams.size(); i++) {
3706 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
3707 if (callbackClasses.contains(paramType))
3709 else if (isEnumClass(getGenericType(paramType))) // Check if this is enum type
3710 print("paramEnum" + i);
3711 else if (isStructClass(getGenericType(paramType))) // Struct type
3712 print("paramStruct" + i);
3714 print(getSimpleIdentifier(methParams.get(i)));
3715 if (i != methParams.size() - 1) {
3724 * HELPER: writeMethodHelperReturnCplusSkeleton() writes the return statement part in skeleton
3726 private void writeMethodHelperReturnCplusSkeleton(InterfaceDecl intDecl, List<String> methParams,
3727 List<String> methPrmTypes, String method, boolean isCallbackMethod, String callbackType,
3728 String methodId, Set<String> callbackClasses) {
3730 println("rmiObj->getMethodParams(paramCls, numParam, paramObj);");
3731 if (isCallbackMethod)
3732 writeCallbackCplusStubGeneration(methParams, methPrmTypes, callbackType);
3733 checkAndWriteEnumTypeCplusSkeleton(methParams, methPrmTypes);
3734 writeStructMembersInitCplusSkeleton(intDecl, methParams, methPrmTypes, method);
3735 // Check if this is "void"
3736 String retType = intDecl.getMethodType(method);
3737 // Check if this is "void"
3738 if (retType.equals("void")) {
3739 writeMethodInputParameters(methParams, methPrmTypes, callbackClasses, methodId);
3740 } else { // We do have a return value
3741 if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) // Enum type
3742 print(checkAndGetCplusType(retType) + " retEnum = ");
3743 else if (isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type
3744 print(checkAndGetCplusType(retType) + " retStruct = ");
3746 print(checkAndGetCplusType(retType) + " retVal = ");
3747 writeMethodInputParameters(methParams, methPrmTypes, callbackClasses, methodId);
3748 checkAndWriteEnumRetTypeCplusSkeleton(retType);
3749 if (isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type
3750 writeStructReturnCplusSkeleton(getSimpleArrayType(getGenericType(retType)), retType);
3751 if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) // Enum type
3752 println("void* retObj = &retEnumInt;");
3754 if (!isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type
3755 println("void* retObj = &retVal;");
3756 String retTypeC = checkAndGetCplusType(retType);
3757 if (isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type
3758 println("rmiObj->sendReturnObj(retObj, retCls, numRetObj);");
3760 println("rmiObj->sendReturnObj(retObj, \"" + checkAndGetCplusRetClsType(getEnumType(retType)) + "\");");
3766 * HELPER: writeStdMethodHelperBodyCplusSkeleton() writes the standard method body helper in the skeleton class
3768 private void writeStdMethodHelperBodyCplusSkeleton(InterfaceDecl intDecl, List<String> methParams,
3769 List<String> methPrmTypes, String method, String methodId, Set<String> callbackClasses) {
3771 // Generate array of parameter types
3772 boolean isCallbackMethod = false;
3773 String callbackType = null;
3774 print("string paramCls[] = { ");
3775 for (int i = 0; i < methParams.size(); i++) {
3776 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
3777 if (callbackClasses.contains(paramType)) {
3778 isCallbackMethod = true;
3779 callbackType = paramType;
3781 } else { // Generate normal classes if it's not a callback object
3782 String paramTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i));
3783 print("\"" + paramTypeC + "\"");
3785 if (i != methParams.size() - 1) {
3790 println("int numParam = " + methParams.size() + ";");
3791 if (isCallbackMethod)
3792 writeCallbackCplusNumStubs(methParams, methPrmTypes, callbackType);
3793 // Generate parameters
3794 for (int i = 0; i < methParams.size(); i++) {
3795 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
3796 if (!callbackClasses.contains(paramType)) {
3797 String methParamType = methPrmTypes.get(i);
3798 if (isEnumClass(getSimpleArrayType(getGenericType(methParamType)))) {
3799 // Check if this is enum type
3800 println("vector<int> paramEnumInt" + i + ";");
3802 String methPrmType = checkAndGetCplusType(methParamType);
3803 String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i));
3804 println(methParamComplete + ";");
3808 // Generate array of parameter objects
3809 print("void* paramObj[] = { ");
3810 for (int i = 0; i < methParams.size(); i++) {
3811 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
3812 if (callbackClasses.contains(paramType))
3813 print("&numStubs" + i);
3814 else if (isEnumClass(getGenericType(paramType))) // Check if this is enum type
3815 print("¶mEnumInt" + i);
3817 print("&" + getSimpleIdentifier(methParams.get(i)));
3818 if (i != methParams.size() - 1) {
3823 // Write the return value part
3824 writeMethodHelperReturnCplusSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod,
3825 callbackType, methodId, callbackClasses);
3830 * HELPER: writeStructMembersCplusSkeleton() writes member parameters of struct
3832 private void writeStructMembersCplusSkeleton(String simpleType, String paramType,
3833 String param, String method, InterfaceDecl intDecl, int iVar) {
3835 // Get the struct declaration for this struct and generate initialization code
3836 StructDecl structDecl = getStructDecl(simpleType);
3837 List<String> memTypes = structDecl.getMemberTypes(simpleType);
3838 List<String> members = structDecl.getMembers(simpleType);
3839 int methodNumId = intDecl.getMethodNumId(method);
3840 String counter = "struct" + methodNumId + "Size" + iVar;
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 println("int pos = 0;");
3974 // Iterate again over the parameters
3975 for (int i = 0; i < methParams.size(); i++) {
3976 String paramType = methPrmTypes.get(i);
3977 String param = methParams.get(i);
3978 String simpleType = getGenericType(paramType);
3979 if (isStructClass(simpleType)) {
3980 writeStructMembersCplusSkeleton(simpleType, paramType, param, method, intDecl, i);
3982 String prmType = returnGenericCallbackType(methPrmTypes.get(i));
3983 if (callbackClasses.contains(prmType)) {
3984 isCallbackMethod = true;
3985 callbackType = paramType;
3986 writeCallbackCplusNumStubs(methParams, methPrmTypes, callbackType);
3987 println("paramCls[pos] = \"int\";");
3988 println("paramObj[pos++] = &numStubs" + i + ";");
3989 } else { // Generate normal classes if it's not a callback object
3990 String paramTypeC = checkAndGetCplusType(methPrmTypes.get(i));
3991 if (isEnumClass(getGenericType(paramTypeC))) { // Check if this is enum type
3992 println("vector<int> paramEnumInt" + i + ";");
3994 String methParamComplete = checkAndGetCplusArray(paramTypeC, methParams.get(i));
3995 println(methParamComplete + ";");
3997 String prmTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i));
3998 println("paramCls[pos] = \"" + prmTypeC + "\";");
3999 if (isEnumClass(getGenericType(paramType))) // Check if this is enum type
4000 println("paramObj[pos++] = ¶mEnumInt" + i + ";");
4002 println("paramObj[pos++] = &" + getSimpleIdentifier(methParams.get(i)) + ";");
4006 // Write the return value part
4007 writeMethodHelperReturnCplusSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod,
4008 callbackType, methodId, callbackClasses);
4013 * HELPER: writeMethodHelperCplusSkeleton() writes the method helper of the skeleton class
4015 private void writeMethodHelperCplusSkeleton(Collection<String> methods, InterfaceDecl intDecl, Set<String> callbackClasses) {
4017 // Use this set to handle two same methodIds
4018 Set<String> uniqueMethodIds = new HashSet<String>();
4019 for (String method : methods) {
4021 List<String> methParams = intDecl.getMethodParams(method);
4022 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4023 if (isStructPresent(methParams, methPrmTypes)) { // Treat struct differently
4024 String methodId = intDecl.getMethodId(method);
4026 String helperMethod = methodId;
4027 if (uniqueMethodIds.contains(methodId))
4028 helperMethod = helperMethod + intDecl.getMethodNumId(method);
4030 uniqueMethodIds.add(methodId);
4031 String retType = intDecl.getMethodType(method);
4032 print(helperMethod + "(");
4033 boolean begin = true;
4034 for (int i = 0; i < methParams.size(); i++) { // Print size variables
4035 String paramType = methPrmTypes.get(i);
4036 String param = methParams.get(i);
4037 String simpleType = getGenericType(paramType);
4038 if (isStructClass(simpleType)) {
4039 if (!begin) { // Generate comma for not the beginning variable
4040 print(", "); begin = false;
4042 int methodNumId = intDecl.getMethodNumId(method);
4043 print("int struct" + methodNumId + "Size" + i);
4047 writeMethodHelperStructCplusSkeleton(intDecl, methParams, methPrmTypes, method, methodId, callbackClasses);
4050 String methodId = intDecl.getMethodId(method);
4052 String helperMethod = methodId;
4053 if (uniqueMethodIds.contains(methodId))
4054 helperMethod = helperMethod + intDecl.getMethodNumId(method);
4056 uniqueMethodIds.add(methodId);
4057 // Check if this is "void"
4058 String retType = intDecl.getMethodType(method);
4059 println(helperMethod + "() {");
4060 // Now, write the helper body of skeleton!
4061 writeStdMethodHelperBodyCplusSkeleton(intDecl, methParams, methPrmTypes, method, methodId, callbackClasses);
4065 // Write method helper for structs
4066 writeMethodHelperStructSetupCplusSkeleton(methods, intDecl);
4071 * HELPER: writeMethodHelperStructSetupCplusSkeleton() writes the method helper of struct in skeleton class
4073 private void writeMethodHelperStructSetupCplusSkeleton(Collection<String> methods,
4074 InterfaceDecl intDecl) {
4076 // Use this set to handle two same methodIds
4077 for (String method : methods) {
4079 List<String> methParams = intDecl.getMethodParams(method);
4080 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4081 // Check for params with structs
4082 for (int i = 0; i < methParams.size(); i++) {
4083 String paramType = methPrmTypes.get(i);
4084 String param = methParams.get(i);
4085 String simpleType = getGenericType(paramType);
4086 if (isStructClass(simpleType)) {
4087 int methodNumId = intDecl.getMethodNumId(method);
4089 String helperMethod = methodNumId + "struct" + i;
4090 println(helperMethod + "() {");
4091 // Now, write the helper body of skeleton!
4092 println("string paramCls[] = { \"int\" };");
4093 println("int numParam = 1;");
4094 println("int param0 = 0;");
4095 println("void* paramObj[] = { ¶m0 };");
4096 println("rmiObj->getMethodParams(paramCls, numParam, paramObj);");
4097 println("return param0;");
4106 * HELPER: writeMethodHelperStructSetupCplusCallbackSkeleton() writes the method helper of struct in skeleton class
4108 private void writeMethodHelperStructSetupCplusCallbackSkeleton(Collection<String> methods,
4109 InterfaceDecl intDecl) {
4111 // Use this set to handle two same methodIds
4112 for (String method : methods) {
4114 List<String> methParams = intDecl.getMethodParams(method);
4115 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4116 // Check for params with structs
4117 for (int i = 0; i < methParams.size(); i++) {
4118 String paramType = methPrmTypes.get(i);
4119 String param = methParams.get(i);
4120 String simpleType = getGenericType(paramType);
4121 if (isStructClass(simpleType)) {
4122 int methodNumId = intDecl.getMethodNumId(method);
4124 String helperMethod = methodNumId + "struct" + i;
4125 println(helperMethod + "(IoTRMIObject* rmiObj) {");
4126 // Now, write the helper body of skeleton!
4127 println("string paramCls[] = { \"int\" };");
4128 println("int numParam = 1;");
4129 println("int param0 = 0;");
4130 println("void* paramObj[] = { ¶m0 };");
4131 println("rmiObj->getMethodParams(paramCls, numParam, paramObj);");
4132 println("return param0;");
4141 * HELPER: writeCplusMethodPermission() writes permission checks in skeleton
4143 private void writeCplusMethodPermission(String intface) {
4145 // Get all the different stubs
4146 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
4147 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
4148 String newIntface = intMeth.getKey();
4149 int newObjectId = getNewIntfaceObjectId(newIntface);
4150 println("if (_objectId == object" + newObjectId + "Id) {");
4151 println("if (set" + newObjectId + "Allowed.find(methodId) == set" + newObjectId + "Allowed.end()) {");
4152 println("cerr << \"Object with object Id: \" << _objectId << \" is not allowed to access method: \" << methodId << endl;");
4157 println("cerr << \"Object Id: \" << _objectId << \" not recognized!\" << endl;");
4165 * HELPER: writeCplusWaitRequestInvokeMethod() writes the main loop of the skeleton class
4167 private void writeCplusWaitRequestInvokeMethod(Collection<String> methods, InterfaceDecl intDecl, boolean callbackExist, String intface) {
4169 // Use this set to handle two same methodIds
4170 Set<String> uniqueMethodIds = new HashSet<String>();
4171 println("void ___waitRequestInvokeMethod() {");
4172 // Write variables here if we have callbacks or enums or structs
4173 writeCountVarStructSkeleton(methods, intDecl);
4174 println("while (true) {");
4175 println("rmiObj->getMethodBytes();");
4176 println("int _objectId = rmiObj->getObjectId();");
4177 println("int methodId = rmiObj->getMethodId();");
4178 // Generate permission check
4179 writeCplusMethodPermission(intface);
4180 println("switch (methodId) {");
4181 // Print methods and method Ids
4182 for (String method : methods) {
4183 String methodId = intDecl.getMethodId(method);
4184 int methodNumId = intDecl.getMethodNumId(method);
4185 print("case " + methodNumId + ": ___");
4186 String helperMethod = methodId;
4187 if (uniqueMethodIds.contains(methodId))
4188 helperMethod = helperMethod + methodNumId;
4190 uniqueMethodIds.add(methodId);
4191 print(helperMethod + "(");
4192 writeInputCountVarStructSkeleton(method, intDecl);
4193 println("); break;");
4195 String method = "___initCallBack()";
4196 // Print case -9999 (callback handler) if callback exists
4197 if (callbackExist) {
4198 int methodId = intDecl.getHelperMethodNumId(method);
4199 println("case " + methodId + ": ___regCB(); break;");
4201 writeMethodCallStructSkeleton(methods, intDecl);
4202 println("default: ");
4203 println("cerr << \"Method Id \" << methodId << \" not recognized!\" << endl;");
4204 println("throw exception();");
4212 * generateCplusSkeletonClass() generate skeletons based on the methods list in C++
4214 public void generateCplusSkeletonClass() throws IOException {
4216 // Create a new directory
4217 String path = createDirectories(dir, subdir);
4218 for (String intface : mapIntfacePTH.keySet()) {
4219 // Open a new file to write into
4220 String newSkelClass = intface + "_Skeleton";
4221 FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".hpp");
4222 pw = new PrintWriter(new BufferedWriter(fw));
4223 // Write file headers
4224 println("#ifndef _" + newSkelClass.toUpperCase() + "_HPP__");
4225 println("#define _" + newSkelClass.toUpperCase() + "_HPP__");
4226 println("#include <iostream>");
4227 println("#include \"" + intface + ".hpp\"\n");
4228 // Pass in set of methods and get import classes
4229 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4230 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
4231 List<String> methods = intDecl.getMethods();
4232 Set<String> includeClasses = getIncludeClasses(methods, intDecl, intface, true);
4233 List<String> stdIncludeClasses = getStandardCplusIncludeClasses();
4234 List<String> allIncludeClasses = getAllLibClasses(stdIncludeClasses, includeClasses);
4235 printIncludeStatements(allIncludeClasses); println("");
4236 println("using namespace std;\n");
4237 // Find out if there are callback objects
4238 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
4239 boolean callbackExist = !callbackClasses.isEmpty();
4240 // Write class header
4241 println("class " + newSkelClass + " : public " + intface); println("{");
4242 println("private:\n");
4244 writePropertiesCplusSkeleton(intface, callbackExist, callbackClasses);
4245 println("public:\n");
4246 // Write constructor
4247 writeConstructorCplusSkeleton(newSkelClass, intface, callbackExist, intDecl, methods);
4248 // Write deconstructor
4249 writeDeconstructorCplusSkeleton(newSkelClass, callbackExist, callbackClasses);
4251 writeMethodCplusSkeleton(methods, intDecl, callbackClasses, false);
4252 // Write method helper
4253 writeMethodHelperCplusSkeleton(methods, intDecl, callbackClasses);
4254 // Write waitRequestInvokeMethod() - main loop
4255 writeCplusWaitRequestInvokeMethod(methods, intDecl, callbackExist, intface);
4257 writePermissionInitializationCplus(intface, newSkelClass, intDecl);
4258 writeObjectIdCountInitializationCplus(newSkelClass, callbackExist);
4261 System.out.println("IoTCompiler: Generated skeleton class " + newSkelClass + ".hpp...");
4267 * HELPER: writePropertiesCplusCallbackSkeleton() writes the properties of the callback skeleton class
4269 private void writePropertiesCplusCallbackSkeleton(String intface, boolean callbackExist, Set<String> callbackClasses) {
4271 println(intface + " *mainObj;");
4272 // Keep track of object Ids of all stubs registered to this interface
4273 println("int objectId;");
4275 if (callbackExist) {
4276 Iterator it = callbackClasses.iterator();
4277 String callbackType = (String) it.next();
4278 String exchangeType = checkAndGetParamClass(callbackType);
4279 println("// Callback properties");
4280 println("IoTRMICall* rmiCall;");
4281 println("vector<" + exchangeType + "*> vecCallbackObj;");
4282 println("static int objIdCnt;");
4289 * HELPER: writeConstructorCplusCallbackSkeleton() writes the constructor of the skeleton class
4291 private void writeConstructorCplusCallbackSkeleton(String newSkelClass, String intface, boolean callbackExist, InterfaceDecl intDecl, Collection<String> methods) {
4293 println(newSkelClass + "(" + intface + " *_mainObj, int _objectId) {");
4294 println("mainObj = _mainObj;");
4295 println("objectId = _objectId;");
4301 * HELPER: writeDeconstructorCplusStub() writes the deconstructor of the stub class
4303 private void writeDeconstructorCplusCallbackSkeleton(String newStubClass, boolean callbackExist,
4304 Set<String> callbackClasses) {
4306 println("~" + newStubClass + "() {");
4307 if (callbackExist) {
4308 // We assume that each class only has one callback interface for now
4309 println("if (rmiCall != NULL) {");
4310 println("delete rmiCall;");
4311 println("rmiCall = NULL;");
4313 Iterator it = callbackClasses.iterator();
4314 String callbackType = (String) it.next();
4315 String exchangeType = checkAndGetParamClass(callbackType);
4316 println("for(" + exchangeType + "* cb : vecCallbackObj) {");
4317 println("delete cb;");
4318 println("cb = NULL;");
4327 * HELPER: writeMethodHelperCplusCallbackSkeleton() writes the method helper of callback skeleton class
4329 private void writeMethodHelperCplusCallbackSkeleton(Collection<String> methods, InterfaceDecl intDecl,
4330 Set<String> callbackClasses) {
4332 // Use this set to handle two same methodIds
4333 Set<String> uniqueMethodIds = new HashSet<String>();
4334 for (String method : methods) {
4336 List<String> methParams = intDecl.getMethodParams(method);
4337 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4338 if (isStructPresent(methParams, methPrmTypes)) { // Treat struct differently
4339 String methodId = intDecl.getMethodId(method);
4341 String helperMethod = methodId;
4342 if (uniqueMethodIds.contains(methodId))
4343 helperMethod = helperMethod + intDecl.getMethodNumId(method);
4345 uniqueMethodIds.add(methodId);
4346 String retType = intDecl.getMethodType(method);
4347 print(helperMethod + "(");
4348 boolean begin = true;
4349 for (int i = 0; i < methParams.size(); i++) { // Print size variables
4350 String paramType = methPrmTypes.get(i);
4351 String param = methParams.get(i);
4352 String simpleType = getGenericType(paramType);
4353 if (isStructClass(simpleType)) {
4354 if (!begin) { // Generate comma for not the beginning variable
4355 print(", "); begin = false;
4357 int methodNumId = intDecl.getMethodNumId(method);
4358 print("int struct" + methodNumId + "Size" + i);
4361 println(", IoTRMIObject* rmiObj) {");
4362 writeMethodHelperStructCplusSkeleton(intDecl, methParams, methPrmTypes, method, methodId, callbackClasses);
4365 String methodId = intDecl.getMethodId(method);
4367 String helperMethod = methodId;
4368 if (uniqueMethodIds.contains(methodId))
4369 helperMethod = helperMethod + intDecl.getMethodNumId(method);
4371 uniqueMethodIds.add(methodId);
4372 // Check if this is "void"
4373 String retType = intDecl.getMethodType(method);
4374 println(helperMethod + "(IoTRMIObject* rmiObj) {");
4375 // Now, write the helper body of skeleton!
4376 writeStdMethodHelperBodyCplusSkeleton(intDecl, methParams, methPrmTypes, method, methodId, callbackClasses);
4380 // Write method helper for structs
4381 writeMethodHelperStructSetupCplusCallbackSkeleton(methods, intDecl);
4386 * HELPER: writeCplusCallbackWaitRequestInvokeMethod() writes the request invoke method of the skeleton callback class
4388 private void writeCplusCallbackWaitRequestInvokeMethod(Collection<String> methods, InterfaceDecl intDecl,
4389 boolean callbackExist) {
4391 // Use this set to handle two same methodIds
4392 Set<String> uniqueMethodIds = new HashSet<String>();
4393 println("void invokeMethod(IoTRMIObject* rmiObj) {");
4394 // Write variables here if we have callbacks or enums or structs
4395 writeCountVarStructSkeleton(methods, intDecl);
4396 // Write variables here if we have callbacks or enums or structs
4397 println("int methodId = rmiObj->getMethodId();");
4398 // TODO: code the permission check here!
4399 println("switch (methodId) {");
4400 // Print methods and method Ids
4401 for (String method : methods) {
4402 String methodId = intDecl.getMethodId(method);
4403 int methodNumId = intDecl.getMethodNumId(method);
4404 print("case " + methodNumId + ": ___");
4405 String helperMethod = methodId;
4406 if (uniqueMethodIds.contains(methodId))
4407 helperMethod = helperMethod + methodNumId;
4409 uniqueMethodIds.add(methodId);
4410 print(helperMethod + "(");
4411 if (writeInputCountVarStructSkeleton(method, intDecl))
4412 println(", rmiObj); break;");
4414 println("rmiObj); break;");
4416 String method = "___initCallBack()";
4417 // Print case -9999 (callback handler) if callback exists
4418 if (callbackExist) {
4419 int methodId = intDecl.getHelperMethodNumId(method);
4420 println("case " + methodId + ": ___regCB(rmiObj); break;");
4422 writeMethodCallStructCallbackSkeleton(methods, intDecl);
4423 println("default: ");
4424 println("cerr << \"Method Id \" << methodId << \" not recognized!\" << endl;");
4425 println("throw exception();");
4432 * generateCplusCallbackSkeletonClass() generate callback skeletons based on the methods list in C++
4434 public void generateCplusCallbackSkeletonClass() throws IOException {
4436 // Create a new directory
4437 String path = createDirectories(dir, subdir);
4438 for (String intface : mapIntfacePTH.keySet()) {
4439 // Open a new file to write into
4440 String newSkelClass = intface + "_CallbackSkeleton";
4441 FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".hpp");
4442 pw = new PrintWriter(new BufferedWriter(fw));
4443 // Write file headers
4444 println("#ifndef _" + newSkelClass.toUpperCase() + "_HPP__");
4445 println("#define _" + newSkelClass.toUpperCase() + "_HPP__");
4446 println("#include <iostream>");
4447 println("#include \"" + intface + ".hpp\"\n");
4448 // Pass in set of methods and get import classes
4449 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4450 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
4451 List<String> methods = intDecl.getMethods();
4452 Set<String> includeClasses = getIncludeClasses(methods, intDecl, intface, true);
4453 List<String> stdIncludeClasses = getStandardCplusIncludeClasses();
4454 List<String> allIncludeClasses = getAllLibClasses(stdIncludeClasses, includeClasses);
4455 printIncludeStatements(allIncludeClasses); println("");
4456 // Find out if there are callback objects
4457 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
4458 boolean callbackExist = !callbackClasses.isEmpty();
4459 println("using namespace std;\n");
4460 // Write class header
4461 println("class " + newSkelClass + " : public " + intface); println("{");
4462 println("private:\n");
4464 writePropertiesCplusCallbackSkeleton(intface, callbackExist, callbackClasses);
4465 println("public:\n");
4466 // Write constructor
4467 writeConstructorCplusCallbackSkeleton(newSkelClass, intface, callbackExist, intDecl, methods);
4468 // Write deconstructor
4469 writeDeconstructorCplusCallbackSkeleton(newSkelClass, callbackExist, callbackClasses);
4471 writeMethodCplusSkeleton(methods, intDecl, callbackClasses, true);
4472 // Write method helper
4473 writeMethodHelperCplusCallbackSkeleton(methods, intDecl, callbackClasses);
4474 // Write waitRequestInvokeMethod() - main loop
4475 writeCplusCallbackWaitRequestInvokeMethod(methods, intDecl, callbackExist);
4477 writeObjectIdCountInitializationCplus(newSkelClass, callbackExist);
4480 System.out.println("IoTCompiler: Generated callback skeleton class " + newSkelClass + ".hpp...");
4486 * generateInitializer() generate initializer based on type
4488 public String generateCplusInitializer(String type) {
4490 // Generate dummy returns for now
4491 if (type.equals("short")||
4492 type.equals("int") ||
4493 type.equals("long") ||
4494 type.equals("float")||
4495 type.equals("double")) {
4498 } else if ( type.equals("String") ||
4499 type.equals("string")) {
4502 } else if ( type.equals("char") ||
4503 type.equals("byte")) {
4506 } else if ( type.equals("boolean")) {
4516 * setDirectory() sets a new directory for stub files
4518 public void setDirectory(String _subdir) {
4525 * printUsage() prints the usage of this compiler
4527 public static void printUsage() {
4529 System.out.println();
4530 System.out.println("Sentinel interface and stub compiler version 1.0");
4531 System.out.println("Copyright (c) 2015-2016 University of California, Irvine - Programming Language Group.");
4532 System.out.println("All rights reserved.");
4533 System.out.println("Usage:");
4534 System.out.println("\tjava IoTCompiler -help / --help / -h\n");
4535 System.out.println("\t\tDisplay this help texts\n\n");
4536 System.out.println("\tjava IoTCompiler [<main-policy-file> <req-policy-file>]");
4537 System.out.println("\tjava IoTCompiler [<main-policy-file> <req-policy-file>] [options]\n");
4538 System.out.println("\t\tTake one or more pairs of main-req policy files, and generate Java and/or C++ files\n");
4539 System.out.println("Options:");
4540 System.out.println("\t-java\t<directory>\tGenerate Java stub files");
4541 System.out.println("\t-cplus\t<directory>\tGenerate C++ stub files");
4542 System.out.println();
4547 * parseFile() prepares Lexer and Parser objects, then parses the file
4549 public static ParseNode parseFile(String file) {
4551 ParseNode pn = null;
4553 ComplexSymbolFactory csf = new ComplexSymbolFactory();
4554 ScannerBuffer lexer =
4555 new ScannerBuffer(new Lexer(new BufferedReader(new FileReader(file)),csf));
4556 Parser parse = new Parser(lexer,csf);
4557 pn = (ParseNode) parse.parse().value;
4558 } catch (Exception e) {
4559 e.printStackTrace();
4560 throw new Error("IoTCompiler: ERROR parsing policy file or wrong command line option: " + file + "\n");
4568 * Basic helper functions
4571 boolean newline=true;
4574 private void print(String str) {
4577 if (str.equals("}"))
4579 for(int i=0; i<tab; i++)
4589 * This function converts Java to C++ type for compilation
4591 private String convertType(String type) {
4593 if (mapPrimitives.containsKey(type))
4594 return mapPrimitives.get(type);
4601 * A collection of methods with print-to-file functionality
4603 private void println(String str) {
4606 if (str.contains("}") && !str.contains("{"))
4608 for(int i=0; i<tab; i++)
4617 private void updatetabbing(String str) {
4619 tablevel+=count(str,'{')-count(str,'}');
4623 private int count(String str, char key) {
4624 char[] array = str.toCharArray();
4626 for(int i=0; i<array.length; i++) {
4627 if (array[i] == key)
4634 private void createDirectory(String dirName) {
4636 File file = new File(dirName);
4637 if (!file.exists()) {
4639 System.out.println("IoTCompiler: Directory " + dirName + " has been created!");
4641 System.out.println("IoTCompiler: Failed to create directory " + dirName + "!");
4644 System.out.println("IoTCompiler: Directory " + dirName + " exists...");
4649 // Create a directory and possibly a sub directory
4650 private String createDirectories(String dir, String subdir) {
4653 createDirectory(path);
4654 if (subdir != null) {
4655 path = path + "/" + subdir;
4656 createDirectory(path);
4662 // Inserting array members into a Map object
4663 // that maps arrKey to arrVal objects
4664 private void arraysToMap(Map map, Object[] arrKey, Object[] arrVal) {
4666 for(int i = 0; i < arrKey.length; i++) {
4668 map.put(arrKey[i], arrVal[i]);
4673 // Check and find object Id for new interface in mapNewIntfaceObjId (callbacks)
4674 // Throw an error if the new interface is not found!
4675 // Basically the compiler needs to parse the policy (and requires) files for callback class first
4676 private int getNewIntfaceObjectId(String newIntface) {
4678 if (!mapNewIntfaceObjId.containsKey(newIntface)) {
4679 throw new Error("IoTCompiler: Need to parse policy and requires files for callback class first! " +
4680 "Please place the two files for callback class in front...\n");
4682 int retObjId = mapNewIntfaceObjId.get(newIntface);
4688 // Return parameter category, i.e. PRIMITIVES, NONPRIMITIVES, USERDEFINED, ENUM, or STRUCT
4689 private ParamCategory getParamCategory(String paramType) {
4691 if (mapPrimitives.containsKey(paramType)) {
4692 return ParamCategory.PRIMITIVES;
4693 // We can either use mapNonPrimitivesJava or mapNonPrimitivesCplus here
4694 } else if (mapNonPrimitivesJava.containsKey(getSimpleType(paramType))) {
4695 return ParamCategory.NONPRIMITIVES;
4696 } else if (isEnumClass(paramType)) {
4697 return ParamCategory.ENUM;
4698 } else if (isStructClass(paramType)) {
4699 return ParamCategory.STRUCT;
4701 return ParamCategory.USERDEFINED;
4705 // Return full class name for non-primitives to generate Java import statements
4706 // e.g. java.util.Set for Set
4707 private String getNonPrimitiveJavaClass(String paramNonPrimitives) {
4709 return mapNonPrimitivesJava.get(paramNonPrimitives);
4713 // Return full class name for non-primitives to generate Cplus include statements
4714 // e.g. #include <set> for Set
4715 private String getNonPrimitiveCplusClass(String paramNonPrimitives) {
4717 return mapNonPrimitivesCplus.get(paramNonPrimitives);
4721 // Get simple types, e.g. HashSet for HashSet<...>
4722 // Basically strip off the "<...>"
4723 private String getSimpleType(String paramType) {
4725 // Check if this is generics
4726 if(paramType.contains("<")) {
4727 String[] type = paramType.split("<");
4734 // Generate a set of standard classes for import statements
4735 private List<String> getStandardJavaIntfaceImportClasses() {
4737 List<String> importClasses = new ArrayList<String>();
4738 // Add the standard list first
4739 importClasses.add("java.util.List");
4740 importClasses.add("java.util.ArrayList");
4742 return importClasses;
4746 // Generate a set of standard classes for import statements
4747 private List<String> getStandardJavaImportClasses() {
4749 List<String> importClasses = new ArrayList<String>();
4750 // Add the standard list first
4751 importClasses.add("java.io.IOException");
4752 importClasses.add("java.util.List");
4753 importClasses.add("java.util.ArrayList");
4754 importClasses.add("java.util.Arrays");
4755 importClasses.add("iotrmi.Java.IoTRMICall");
4756 importClasses.add("iotrmi.Java.IoTRMIObject");
4758 return importClasses;
4762 // Generate a set of standard classes for import statements
4763 private List<String> getStandardCplusIncludeClasses() {
4765 List<String> importClasses = new ArrayList<String>();
4766 // Add the standard list first
4767 importClasses.add("<vector>");
4768 importClasses.add("<set>");
4769 importClasses.add("\"IoTRMICall.hpp\"");
4770 importClasses.add("\"IoTRMIObject.hpp\"");
4772 return importClasses;
4776 // Combine all classes for import statements
4777 private List<String> getAllLibClasses(Collection<String> stdLibClasses, Collection<String> libClasses) {
4779 List<String> allLibClasses = new ArrayList<String>(stdLibClasses);
4780 // Iterate over the list of import classes
4781 for (String str : libClasses) {
4782 if (!allLibClasses.contains(str)) {
4783 allLibClasses.add(str);
4786 return allLibClasses;
4791 // Generate a set of classes for import statements
4792 private Set<String> getImportClasses(Collection<String> methods, InterfaceDecl intDecl) {
4794 Set<String> importClasses = new HashSet<String>();
4795 for (String method : methods) {
4796 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4797 for (String paramType : methPrmTypes) {
4799 String simpleType = getSimpleType(paramType);
4800 if (getParamCategory(simpleType) == ParamCategory.NONPRIMITIVES) {
4801 importClasses.add(getNonPrimitiveJavaClass(simpleType));
4805 return importClasses;
4809 // Handle and return the correct enum declaration
4810 // In Java, if we declare enum in Camera interface, then it becomes "Camera.<enum>"
4811 private String getEnumParamDecl(String type, InterfaceDecl intDecl) {
4813 // Strips off array "[]" for return type
4814 String pureType = getSimpleArrayType(type);
4815 // Take the inner type of generic
4816 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4817 pureType = getTypeOfGeneric(type)[0];
4818 if (isEnumClass(pureType)) {
4819 String enumType = intDecl.getInterface() + "." + type;
4826 // Handle and return the correct type
4827 private String getEnumParam(String type, String param, int i) {
4829 // Strips off array "[]" for return type
4830 String pureType = getSimpleArrayType(type);
4831 // Take the inner type of generic
4832 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4833 pureType = getTypeOfGeneric(type)[0];
4834 if (isEnumClass(pureType)) {
4835 String enumParam = "paramEnum" + i;
4842 // Handle and return the correct enum declaration translate into int[]
4843 private String getEnumType(String type) {
4845 // Strips off array "[]" for return type
4846 String pureType = getSimpleArrayType(type);
4847 // Take the inner type of generic
4848 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4849 pureType = getGenericType(type);
4850 if (isEnumClass(pureType)) {
4851 String enumType = "int[]";
4857 // Handle and return the correct enum declaration translate into int* for C
4858 private String getEnumCplusClsType(String type) {
4860 // Strips off array "[]" for return type
4861 String pureType = getSimpleArrayType(type);
4862 // Take the inner type of generic
4863 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4864 pureType = getGenericType(type);
4865 if (isEnumClass(pureType)) {
4866 String enumType = "int*";
4873 // Handle and return the correct struct declaration
4874 private String getStructType(String type) {
4876 // Strips off array "[]" for return type
4877 String pureType = getSimpleArrayType(type);
4878 // Take the inner type of generic
4879 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4880 pureType = getGenericType(type);
4881 if (isStructClass(pureType)) {
4882 String structType = "int";
4889 // Check if this an enum declaration
4890 private boolean isEnumClass(String type) {
4892 // Just iterate over the set of interfaces
4893 for (String intface : mapIntfacePTH.keySet()) {
4894 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4895 EnumDecl enumDecl = (EnumDecl) decHandler.getEnumDecl(intface);
4896 Set<String> setEnumDecl = enumDecl.getEnumDeclarations();
4897 if (setEnumDecl.contains(type))
4904 // Check if this an struct declaration
4905 private boolean isStructClass(String type) {
4907 // Just iterate over the set of interfaces
4908 for (String intface : mapIntfacePTH.keySet()) {
4909 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4910 StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface);
4911 List<String> listStructDecl = structDecl.getStructTypes();
4912 if (listStructDecl.contains(type))
4919 // Return a struct declaration
4920 private StructDecl getStructDecl(String type) {
4922 // Just iterate over the set of interfaces
4923 for (String intface : mapIntfacePTH.keySet()) {
4924 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4925 StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface);
4926 List<String> listStructDecl = structDecl.getStructTypes();
4927 if (listStructDecl.contains(type))
4934 // Return number of members (-1 if not found)
4935 private int getNumOfMembers(String type) {
4937 // Just iterate over the set of interfaces
4938 for (String intface : mapIntfacePTH.keySet()) {
4939 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4940 StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface);
4941 List<String> listStructDecl = structDecl.getStructTypes();
4942 if (listStructDecl.contains(type))
4943 return structDecl.getNumOfMembers(type);
4949 // Generate a set of classes for include statements
4950 private Set<String> getIncludeClasses(Collection<String> methods, InterfaceDecl intDecl, String intface, boolean needExchange) {
4952 Set<String> includeClasses = new HashSet<String>();
4953 for (String method : methods) {
4955 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4956 List<String> methParams = intDecl.getMethodParams(method);
4957 for (int i = 0; i < methPrmTypes.size(); i++) {
4959 String simpleType = getSimpleType(methPrmTypes.get(i));
4960 String param = methParams.get(i);
4961 if (getParamCategory(simpleType) == ParamCategory.NONPRIMITIVES) {
4962 includeClasses.add("<" + getNonPrimitiveCplusClass(simpleType) + ">");
4963 } else if (getParamCategory(simpleType) == ParamCategory.USERDEFINED) {
4964 // For original interface, we need it exchanged... not for stub interfaces
4966 includeClasses.add("\"" + exchangeParamType(simpleType) + ".hpp\"");
4967 includeClasses.add("\"" + exchangeParamType(simpleType) + "_CallbackStub.hpp\"");
4969 includeClasses.add("\"" + simpleType + ".hpp\"");
4970 includeClasses.add("\"" + simpleType + "_CallbackSkeleton.hpp\"");
4972 } else if (getParamCategory(getSimpleArrayType(simpleType)) == ParamCategory.ENUM) {
4973 includeClasses.add("\"" + simpleType + ".hpp\"");
4974 } else if (getParamCategory(getSimpleArrayType(simpleType)) == ParamCategory.STRUCT) {
4975 includeClasses.add("\"" + simpleType + ".hpp\"");
4976 } else if (param.contains("[]")) {
4977 // Check if this is array for C++; translate into vector
4978 includeClasses.add("<vector>");
4982 return includeClasses;
4986 // Generate a set of callback classes
4987 private Set<String> getCallbackClasses(Collection<String> methods, InterfaceDecl intDecl) {
4989 Set<String> callbackClasses = new HashSet<String>();
4990 for (String method : methods) {
4992 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4993 List<String> methParams = intDecl.getMethodParams(method);
4994 for (int i = 0; i < methPrmTypes.size(); i++) {
4996 String type = methPrmTypes.get(i);
4997 if (getParamCategory(type) == ParamCategory.USERDEFINED) {
4998 callbackClasses.add(type);
4999 } else if (getParamCategory(type) == ParamCategory.NONPRIMITIVES) {
5000 // Can be a List<...> of callback objects ...
5001 String genericType = getTypeOfGeneric(type)[0];
5002 if (getParamCategory(type) == ParamCategory.USERDEFINED) {
5003 callbackClasses.add(type);
5008 return callbackClasses;
5012 // Print import statements into file
5013 private void printImportStatements(Collection<String> importClasses) {
5015 for(String cls : importClasses) {
5016 println("import " + cls + ";");
5021 // Print include statements into file
5022 private void printIncludeStatements(Collection<String> includeClasses) {
5024 for(String cls : includeClasses) {
5025 println("#include " + cls);
5030 // Get the C++ version of a non-primitive type
5031 // e.g. set for Set and map for Map
5032 // Input nonPrimitiveType has to be generics in format
5033 private String[] getTypeOfGeneric(String nonPrimitiveType) {
5035 // Handle <, >, and , for 2-type generic/template
5036 String[] substr = nonPrimitiveType.split("<")[1].split(">")[0].split(",");
5041 // Gets generic type inside "<" and ">"
5042 private String getGenericType(String type) {
5044 // Handle <, >, and , for 2-type generic/template
5045 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES) {
5046 String[] substr = type.split("<")[1].split(">")[0].split(",");
5053 // This helper function strips off array declaration, e.g. int[] becomes int
5054 private String getSimpleArrayType(String type) {
5056 // Handle [ for array declaration
5057 String substr = type;
5058 if (type.contains("[]")) {
5059 substr = type.split("\\[\\]")[0];
5065 // This helper function strips off array declaration, e.g. D[] becomes D
5066 private String getSimpleIdentifier(String ident) {
5068 // Handle [ for array declaration
5069 String substr = ident;
5070 if (ident.contains("[]")) {
5071 substr = ident.split("\\[\\]")[0];
5077 // Checks and gets type in C++
5078 private String checkAndGetCplusType(String paramType) {
5080 if (getParamCategory(paramType) == ParamCategory.PRIMITIVES) {
5081 return convertType(paramType);
5082 } else if (getParamCategory(paramType) == ParamCategory.NONPRIMITIVES) {
5084 // Check for generic/template format
5085 if (paramType.contains("<") && paramType.contains(">")) {
5087 String genericClass = getSimpleType(paramType);
5088 String genericType = getGenericType(paramType);
5089 String cplusTemplate = null;
5090 cplusTemplate = getNonPrimitiveCplusClass(genericClass);
5091 if(getParamCategory(getGenericType(paramType)) == ParamCategory.USERDEFINED) {
5092 cplusTemplate = cplusTemplate + "<" + genericType + "*>";
5094 cplusTemplate = cplusTemplate + "<" + convertType(genericType) + ">";
5096 return cplusTemplate;
5098 return getNonPrimitiveCplusClass(paramType);
5099 } else if(paramType.contains("[]")) { // Array type (used for return type only)
5100 String cArray = "vector<" + convertType(getSimpleArrayType(paramType)) + ">";
5102 } else if(getParamCategory(paramType) == ParamCategory.USERDEFINED) {
5103 return paramType + "*";
5105 // Just return it as is if it's not non-primitives
5110 // Detect array declaration, e.g. int A[],
5111 // then generate "int A[]" in C++ as "vector<int> A"
5112 private String checkAndGetCplusArray(String paramType, String param) {
5114 String paramComplete = null;
5115 // Check for array declaration
5116 if (param.contains("[]")) {
5117 paramComplete = "vector<" + paramType + "> " + param.replace("[]","");
5119 // Just return it as is if it's not an array
5120 paramComplete = paramType + " " + param;
5122 return paramComplete;
5126 // Detect array declaration, e.g. int A[],
5127 // then generate "int A[]" in C++ as "vector<int> A"
5128 // This method just returns the type
5129 private String checkAndGetCplusArrayType(String paramType) {
5131 String paramTypeRet = null;
5132 // Check for array declaration
5133 if (paramType.contains("[]")) {
5134 String type = paramType.split("\\[\\]")[0];
5135 paramTypeRet = checkAndGetCplusType(type) + "[]";
5136 } else if (paramType.contains("vector")) {
5137 // Just return it as is if it's not an array
5138 String type = paramType.split("<")[1].split(">")[0];
5139 paramTypeRet = checkAndGetCplusType(type) + "[]";
5141 paramTypeRet = paramType;
5143 return paramTypeRet;
5147 // Detect array declaration, e.g. int A[],
5148 // then generate "int A[]" in C++ as "vector<int> A"
5149 // This method just returns the type
5150 private String checkAndGetCplusArrayType(String paramType, String param) {
5152 String paramTypeRet = null;
5153 // Check for array declaration
5154 if (param.contains("[]")) {
5155 paramTypeRet = checkAndGetCplusType(paramType) + "[]";
5156 } else if (paramType.contains("vector")) {
5157 // Just return it as is if it's not an array
5158 String type = paramType.split("<")[1].split(">")[0];
5159 paramTypeRet = checkAndGetCplusType(type) + "[]";
5161 paramTypeRet = paramType;
5163 return paramTypeRet;
5167 // Return the class type for class resolution (for return value)
5168 // - Check and return C++ array class, e.g. int A[] into int*
5169 // - Check and return C++ vector class, e.g. List<Integer> A into vector<int>
5170 private String checkAndGetCplusRetClsType(String paramType) {
5172 String paramTypeRet = null;
5173 // Check for array declaration
5174 if (paramType.contains("[]")) {
5175 String type = paramType.split("\\[\\]")[0];
5176 paramTypeRet = getSimpleArrayType(type) + "*";
5177 } else if (paramType.contains("<") && paramType.contains(">")) {
5178 // Just return it as is if it's not an array
5179 String type = paramType.split("<")[1].split(">")[0];
5180 paramTypeRet = "vector<" + getGenericType(type) + ">";
5182 paramTypeRet = paramType;
5184 return paramTypeRet;
5188 // Return the class type for class resolution (for method arguments)
5189 // - Check and return C++ array class, e.g. int A[] into int*
5190 // - Check and return C++ vector class, e.g. List<Integer> A into vector<int>
5191 private String checkAndGetCplusArgClsType(String paramType, String param) {
5193 String paramTypeRet = getEnumCplusClsType(paramType);
5194 if (!paramTypeRet.equals(paramType))
5195 // Just return if it is an enum type
5196 // Type will still be the same if it's not an enum type
5197 return paramTypeRet;
5199 // Check for array declaration
5200 if (param.contains("[]")) {
5201 paramTypeRet = getSimpleArrayType(paramType) + "*";
5202 } else if (paramType.contains("<") && paramType.contains(">")) {
5203 // Just return it as is if it's not an array
5204 String type = paramType.split("<")[1].split(">")[0];
5205 paramTypeRet = "vector<" + getGenericType(type) + ">";
5207 paramTypeRet = paramType;
5209 return paramTypeRet;
5213 // Detect array declaration, e.g. int A[],
5214 // then generate type "int[]"
5215 private String checkAndGetArray(String paramType, String param) {
5217 String paramTypeRet = null;
5218 // Check for array declaration
5219 if (param.contains("[]")) {
5220 paramTypeRet = paramType + "[]";
5222 // Just return it as is if it's not an array
5223 paramTypeRet = paramType;
5225 return paramTypeRet;
5229 // Is array or list?
5230 private boolean isArrayOrList(String paramType, String param) {
5232 // Check for array declaration
5235 else if (isList(paramType))
5243 // For return type we use retType as input parameter
5244 private boolean isArray(String param) {
5246 // Check for array declaration
5247 if (param.contains("[]"))
5255 private boolean isList(String paramType) {
5257 // Check for array declaration
5258 if (paramType.contains("List"))
5265 // Get the right type for a callback object
5266 private String checkAndGetParamClass(String paramType) {
5268 // Check if this is generics
5269 if(getParamCategory(paramType) == ParamCategory.USERDEFINED) {
5270 return exchangeParamType(paramType);
5271 } else if (isList(paramType) &&
5272 (getParamCategory(getGenericType(paramType)) == ParamCategory.USERDEFINED)) {
5273 return "List<" + exchangeParamType(getGenericType(paramType)) + ">";
5279 // Returns the other interface for type-checking purposes for USERDEFINED
5280 // classes based on the information provided in multiple policy files
5281 // e.g. return CameraWithXXX instead of Camera
5282 private String exchangeParamType(String intface) {
5284 // Param type that's passed is the interface name we need to look for
5285 // in the map of interfaces, based on available policy files.
5286 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
5287 if (decHandler != null) {
5288 // We've found the required interface policy files
5289 RequiresDecl reqDecl = (RequiresDecl) decHandler.getRequiresDecl(intface);
5290 Set<String> setExchInt = reqDecl.getInterfaces();
5291 if (setExchInt.size() == 1) {
5292 Iterator iter = setExchInt.iterator();
5293 return (String) iter.next();
5295 throw new Error("IoTCompiler: Ambiguous stub interfaces: " + setExchInt.toString() +
5296 ". Only one new interface can be declared if the object " + intface +
5297 " needs to be passed in as an input parameter!\n");
5300 // NULL value - this means policy files missing
5301 throw new Error("IoTCompiler: Parameter type lookup failed for " + intface +
5302 "... Please provide the necessary policy files for user-defined types." +
5303 " If this is an array please type the brackets after the variable name," +
5304 " e.g. \"String str[]\", not \"String[] str\"." +
5305 " If this is a Collections (Java) / STL (C++) type, this compiler only" +
5306 " supports List/ArrayList (Java) or list (C++).\n");
5311 public static void main(String[] args) throws Exception {
5313 // If there is no argument or just "--help" or "-h", then invoke printUsage()
5314 if ((args[0].equals("-help") ||
5315 args[0].equals("--help")||
5316 args[0].equals("-h")) ||
5317 (args.length == 0)) {
5319 IoTCompiler.printUsage();
5321 } else if (args.length > 1) {
5323 IoTCompiler comp = new IoTCompiler();
5326 // Parse main policy file
5327 ParseNode pnPol = IoTCompiler.parseFile(args[i]);
5328 // Parse "requires" policy file
5329 ParseNode pnReq = IoTCompiler.parseFile(args[i+1]);
5330 // Get interface name
5331 String intface = ParseTreeHandler.getOrigIntface(pnPol);
5332 comp.setDataStructures(intface, pnPol, pnReq);
5333 comp.getMethodsForIntface(intface);
5335 // 1) Check if this is the last option before "-java" or "-cplus"
5336 // 2) Check if this is really the last option (no "-java" or "-cplus")
5337 } while(!args[i].equals("-java") &&
5338 !args[i].equals("-cplus") &&
5341 // Generate everything if we don't see "-java" or "-cplus"
5342 if (i == args.length) {
5343 comp.generateEnumJava();
5344 comp.generateStructJava();
5345 comp.generateJavaLocalInterfaces();
5346 comp.generateJavaInterfaces();
5347 comp.generateJavaStubClasses();
5348 comp.generateJavaCallbackStubClasses();
5349 comp.generateJavaSkeletonClass();
5350 comp.generateJavaCallbackSkeletonClass();
5351 comp.generateEnumCplus();
5352 comp.generateStructCplus();
5353 comp.generateCplusLocalInterfaces();
5354 comp.generateCPlusInterfaces();
5355 comp.generateCPlusStubClasses();
5356 comp.generateCPlusCallbackStubClasses();
5357 comp.generateCplusSkeletonClass();
5358 comp.generateCplusCallbackSkeletonClass();
5360 // Check other options
5361 while(i < args.length) {
5363 if (!args[i].equals("-java") &&
5364 !args[i].equals("-cplus")) {
5365 throw new Error("IoTCompiler: ERROR - unrecognized command line option: " + args[i] + "\n");
5367 if (i + 1 < args.length) {
5368 comp.setDirectory(args[i+1]);
5370 throw new Error("IoTCompiler: ERROR - please provide <directory> after option: " + args[i] + "\n");
5372 if (args[i].equals("-java")) {
5373 comp.generateEnumJava();
5374 comp.generateStructJava();
5375 comp.generateJavaLocalInterfaces();
5376 comp.generateJavaInterfaces();
5377 comp.generateJavaStubClasses();
5378 comp.generateJavaCallbackStubClasses();
5379 comp.generateJavaSkeletonClass();
5380 comp.generateJavaCallbackSkeletonClass();
5382 comp.generateEnumCplus();
5383 comp.generateStructCplus();
5384 comp.generateCplusLocalInterfaces();
5385 comp.generateCPlusInterfaces();
5386 comp.generateCPlusStubClasses();
5387 comp.generateCPlusCallbackStubClasses();
5388 comp.generateCplusSkeletonClass();
5389 comp.generateCplusCallbackSkeletonClass();
5396 // Need to at least have exactly 2 parameters, i.e. main policy file and requires file
5397 IoTCompiler.printUsage();
5398 throw new Error("IoTCompiler: At least two arguments (main and requires policy files) have to be provided!\n");