--- /dev/null
+// ResourceContext.java\r
+// $Id: ResourceContext.java,v 1.1 2010/06/15 12:20:25 smhuang Exp $\r
+// (c) COPYRIGHT MIT and INRIA, 1996, 1997.\r
+// Please first read the full copyright statement in file COPYRIGHT.html\r
+\r
+package org.w3c.tools.resources;\r
+\r
+import java.util.Hashtable;\r
+\r
+/**\r
+ * The resource context.\r
+ */\r
+public class ResourceContext {\r
+\r
+ /**\r
+ * debug flag\r
+ */\r
+ public static boolean debug = false;\r
+\r
+ /**\r
+ * Our parent context, if any.\r
+ */\r
+ protected ResourceContext parent = null;\r
+ /**\r
+ * The set of registered modules.\r
+ */\r
+ public Hashtable modules = null;\r
+\r
+ /**\r
+ * Our Resource Space.\r
+ */\r
+ protected ResourceSpace space = null;\r
+\r
+ /**\r
+ * The server of that resource context.\r
+ */\r
+ protected ServerInterface server = null;\r
+\r
+ /**\r
+ * The ResourceReference of our resource.\r
+ */\r
+ protected ResourceReference reference = null;\r
+\r
+ /**\r
+ * The ResourceReference of the resource container.\r
+ */\r
+ protected ResourceReference container = null;\r
+\r
+ /**\r
+ * Get the container of the resource.\r
+ * @return A ResourceReference instance.\r
+ */\r
+ public ResourceReference getContainer() {\r
+ return container;\r
+ }\r
+\r
+ /**\r
+ * Get the ResourceReference of the resource.\r
+ * @return a ResourceReference instance.\r
+ */\r
+ public ResourceReference getResourceReference() {\r
+ return reference;\r
+ }\r
+\r
+ /**\r
+ * Set the ResourceReference of the resource.\r
+ * @param reference The ResourceReference to set.\r
+ */\r
+ public void setResourceReference(ResourceReference reference) {\r
+ this.reference = reference;\r
+ reference.updateContext(this);\r
+ }\r
+\r
+ /**\r
+ * Get our Resource Space.\r
+ * @return A ResourceSpace instance.\r
+ */\r
+ public ResourceSpace getSpace() {\r
+ return space;\r
+ }\r
+\r
+ /**\r
+ * Set the Resource Space.\r
+ * @param space Our Resource Space.\r
+ */\r
+ public void setSpace(ResourceSpace space) {\r
+ this.space = space;\r
+ }\r
+\r
+ /**\r
+ * Get the server this context is attached to.\r
+ * @return An ServerInterface instance \r
+ * (guaranteed not to be <strong>null</strong>.)\r
+ */\r
+\r
+ public ServerInterface getServer() {\r
+ return server;\r
+ }\r
+\r
+ /**\r
+ * Get that context's ancestor.\r
+ * @return A ResourceContext instance, or <strong>null</strong>.\r
+ */\r
+\r
+ public ResourceContext getParent() {\r
+ return parent;\r
+ }\r
+\r
+ /**\r
+ * Register a module within that resource context.\r
+ * @param name The module's name.\r
+ * @param impl The module's implementation.\r
+ */\r
+\r
+ public synchronized void registerModule(String name, Object impl) {\r
+ if ( modules == null )\r
+ modules = new Hashtable(7);\r
+ modules.put(name, impl);\r
+ }\r
+\r
+ /**\r
+ * Lookup a module within that resource context.\r
+ * @param name Name of the module to look for.\r
+ * @param inherited Also look within the contexts hierarchy for an \r
+ * inherited module having that name.\r
+ */\r
+\r
+ public Object getModule(String name, boolean inherited) {\r
+ Object impl = ((modules == null) ? null : modules.get(name));\r
+ if (inherited && (parent != null) && (impl == null))\r
+ impl = parent.getModule(name, true);\r
+ return impl;\r
+ }\r
+\r
+ /**\r
+ * Lookup a module within that context, and up the hierarchy of contexts.\r
+ * @param name The module's name.\r
+ * @return An object <em>implementing</em> that module.\r
+ */\r
+\r
+ public Object getModule(String name) {\r
+ return getModule(name, true);\r
+ }\r
+\r
+ public String toString() {\r
+ String tostring = "\nResourceContext : ";\r
+ if (parent == null)\r
+ tostring += "\n\tparent : null";\r
+ tostring += "\n\tcontainer : "+container;\r
+ tostring += "\n\tspace : "+space;\r
+ tostring += "\n\tserver : "+server;\r
+ return tostring;\r
+ }\r
+\r
+ /**\r
+ * Create a ResourceContext from a container.\r
+ * @param container The resource container.\r
+ */\r
+ public ResourceContext(ContainerResource container)\r
+ {\r
+ this.parent = container.getContext();\r
+ this.container = container.getResourceReference();\r
+ this.space = (parent != null) ? parent.space : null;\r
+ this.server = (parent != null) ? parent.server : null;\r
+ if ((this.container == null) && debug) {\r
+ System.out.println("[1] container has no Reference");\r
+ org.w3c.util.Trace.showTrace();\r
+ }\r
+ }\r
+\r
+ /**\r
+ * Create a ResourceContext from a container ResourceReference.\r
+ * @param container The resource reference of the container. \r
+ * Must be an instance of ContainerResource.\r
+ */\r
+ public ResourceContext(ResourceReference rr_container) {\r
+ try {\r
+ Resource res = rr_container.lock();\r
+ this.parent = res.getContext();\r
+ this.container = rr_container;\r
+ this.space = (parent != null) ? parent.space : null;\r
+ this.server = (parent != null) ? parent.server : null;\r
+ } catch (InvalidResourceException ex) {\r
+ //should be valid\r
+ ex.printStackTrace();\r
+ } finally {\r
+ rr_container.unlock();\r
+ }\r
+ }\r
+\r
+ /**\r
+ * Create a ResourceContext from the parent context.\r
+ * @param parent The parent resource context.\r
+ */\r
+ public ResourceContext(ResourceContext parent) \r
+ {\r
+ this.parent = parent;\r
+ this.container = parent.getResourceReference();\r
+ this.space = parent.space;\r
+ this.server = parent.server;\r
+ if ((this.container == null) && debug) {\r
+ System.out.println("[2] parent context has no reference");\r
+ org.w3c.util.Trace.showTrace();\r
+ }\r
+ }\r
+\r
+ /**\r
+ * Create a ResourceContext.\r
+ * @param space The ResourceSpace.\r
+ * @param server The server.\r
+ */\r
+ public ResourceContext(ResourceSpace space, ServerInterface server)\r
+ {\r
+ this.server = server;\r
+ this.space = space;\r
+ this.container = null;\r
+ this.parent = null;\r
+ }\r
+\r
+ /**\r
+ * Create a ResourceContext.\r
+ * @param server The server.\r
+ */\r
+ public ResourceContext(ServerInterface server)\r
+ {\r
+ this.server = server;\r
+ this.space = null;\r
+ this.container = null;\r
+ this.parent = null;\r
+ }\r
+\r
+}\r
projects / Benchmarks_CSolver.git / blobdiff