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[simgrid.git] / src / cxx / ApplicationHandler.cxx
index 7b5f816..3b48213 100644 (file)
+/*\r
+ * ApplicationHandler.cxx\r
+ *\r
+ * Copyright 2006,2007 Martin Quinson, Malek Cherier           \r
+ * All right reserved. \r
+ *\r
+ * This program is free software; you can redistribute \r
+ * it and/or modify it under the terms of the license \r
+ *(GNU LGPL) which comes with this package. \r
+ *\r
+ */\r
\r
+ /* ApplicationHandler member functions implementation.\r
+  */  \r
+\r
+\r
+#include <Object.hpp>\r
 #include <ApplicationHandler.hpp>\r
 \r
-namespace msg\r
-{\r
-       \r
-ApplicationHandler::ProcessFactory::processFactory = NULL;\r
-       \r
-void ApplicationHandler::onStartDocument(void)\r
-{\r
-       processFactory = new ProcessFactory();  \r
-}\r
+#include <Process.hpp>\r
+#include <Host.hpp>\r
 \r
-void ApplicationHandler::onEndDocument(void)\r
-{\r
-       if(processFactory)\r
-               delete processFactroy;\r
-}\r
-       \r
-void ApplicationHandler::onBeginProcess(void)\r
-{\r
-       processFactory->setProcessIdentity(A_surfxml_process_host, A_surfxml_process_function);\r
-}              \r
 \r
-void ApplicationHandler::onProcessArg(void)\r
-{\r
-       processFactory->registerProcessArg(A_surfxml_argument_value);\r
-}\r
 \r
-void ApplicationHandler::OnProperty(void)\r
-{\r
-        processFactory->setProperty(A_surfxml_prop_id, A_surfxml_prop_value);\r
-}\r
 \r
-void ApplicationHandler::onEndProcess(void)\r
-{\r
-       processFactory->createProcess();\r
-}\r
 \r
-void ApplicationHandler::ProcessFactory::createProcess() \r
-       {\r
-       Process* process = (Process*)Class::fromName(this->function);\r
-               \r
-               Host host = Host::getByName(this->hostName);\r
+#include <stdlib.h>\r
 \r
-       process->create();\r
-       \r
-       Strings* args = processFactory->args;\r
-       \r
-       int size = args->size();\r
+#include <surf/surfxml_parse.h>\r
+#include <xbt/sysdep.h>\r
 \r
-       for (int index = 0; index < size; index++)\r
-               process->args->push_back(args->at(index));\r
-      \r
-       process->properties = this->properties;\r
-       this->properties = new Properties();\r
-       }\r
-       \r
-void ApplicationHandler::ProcessFactory::setProcessIdentity(const string& hostName, const string& function) \r
+\r
+namespace SimGrid\r
 {\r
-       this->hostName = hostName;\r
-       this->function = function;\r
+       namespace Msg\r
+       {\r
+\r
+               ApplicationHandler::ProcessFactory* ApplicationHandler::processFactory = NULL;\r
+                       \r
+               // Desable the default constructor, the copy constructor , the assignement operator\r
+               // and the destructor of this class. Assume that this class is static.\r
+               \r
+               // Default constructor.\r
+               ApplicationHandler::ApplicationHandler()\r
+               {\r
+                       // NOTHING TODO\r
+               }\r
+               \r
+               // Copy constructor.\r
+               ApplicationHandler::ApplicationHandler(const ApplicationHandler& rApplicationHandler)\r
+               {\r
+                       // NOTHING TODO\r
+               }\r
+               \r
+               // Destructor\r
+               ApplicationHandler::~ApplicationHandler()\r
+               {\r
+                       // NOTHING TODO\r
+               }\r
+               \r
+               // Assignement operator.\r
+               const ApplicationHandler& ApplicationHandler::operator = (const ApplicationHandler& rApplicationHandler)\r
+               {\r
+                       return *this;\r
+               }\r
+               \r
+               void ApplicationHandler::onStartDocument(void)\r
+               {\r
+                       // instanciate the factory at the begining of the parsing\r
+                       processFactory = new ProcessFactory();  \r
+               }\r
+               \r
+               void ApplicationHandler::onEndDocument(void)\r
+               {\r
+                       // release the handler at the end of the parsing.\r
+                       if(processFactory)\r
+                               delete processFactory;\r
+               }\r
+                       \r
+               void ApplicationHandler::onBeginProcess(void)\r
+               {\r
+                       // set the process identity at the begin of the xml process element.\r
+                       processFactory->setProcessIdentity(A_surfxml_process_host, A_surfxml_process_function);\r
+               }               \r
+               \r
+               void ApplicationHandler::onProcessArg(void)\r
+               {\r
+                       // register the argument of the current xml process element.\r
+                       processFactory->registerProcessArg(A_surfxml_argument_value);\r
+               }\r
+               \r
+               void ApplicationHandler::OnProperty(void)\r
+               {\r
+                       // set the property of the current xml process element.\r
+                        processFactory->setProperty(A_surfxml_prop_id, A_surfxml_prop_value);\r
+               }\r
+               \r
+               void ApplicationHandler::onEndProcess(void)\r
+               {\r
+                       // at the end of the xml process element create the wrapper process (of the native Msg process)\r
+                       processFactory->createProcess();\r
+               }\r
+               \r
+               /////////////////////////////////////////////////////////////////////////////////////////////////\r
+               // Process factory connected member functions\r
+               \r
+               ApplicationHandler::ProcessFactory::ProcessFactory() \r
+               {\r
+                       this->args = xbt_dynar_new(sizeof(char*),ApplicationHandler::ProcessFactory::freeCstr);\r
+                       this->properties = NULL; // TODO instanciate the dictionary\r
+                       this->hostName = NULL;\r
+                       this->function = NULL;\r
+               } \r
 \r
-       if (!this->args->empty())\r
-               this->args->clear();\r
+               ApplicationHandler::ProcessFactory::~ProcessFactory()\r
+               {\r
+                       xbt_dynar_free(&(this->args));\r
+               }\r
+               \r
+               // create the cxx process wrapper.\r
+               void ApplicationHandler::ProcessFactory::createProcess() \r
+               throw (ClassNotFoundException, HostNotFoundException)\r
+               {\r
+                       Host host;\r
+                       Class* c;\r
+                       Process* process;\r
+                       \r
+                       // try to dynamicaly create an instance fo the process from its name (which is specified by the element function\r
+                       // in the xml application file.\r
+                       // if this static method fails, it throws an exception of the class ClassNotFoundException\r
+                       c = Class::fromName(this->function);\r
+                       process = reinterpret_cast<Process*>(c->createObject());\r
+                       \r
+                       // try to retrieve the host of the process from its name\r
+                       // if this method fails, it throws an exception of the class HostNotFoundException\r
+                       host = Host::getByName(this->hostName); \r
+                       \r
+                       // build the list of the arguments of the newly created process.\r
+                       int argc = xbt_dynar_length(this->args);\r
+                       \r
+                       char** argv = (char**)calloc(argc, sizeof(char*));\r
+                       \r
+                       for(int i = argc -1; i >= 0; i--)\r
+                               xbt_dynar_pop(this->args, &(argv[i]));\r
+                       \r
+                       // finaly create the process (for more detail on the process creation see Process::create()\r
+                       process->create(host, this->function , argc, argv);\r
+                       \r
+                       // TODO add the properties of the process\r
+                       /*process->properties = this->properties;\r
+                       this->properties = new Properties();*/\r
+               }\r
+                       \r
+               void ApplicationHandler::ProcessFactory::setProcessIdentity(const char* hostName, const char* function) \r
+               {\r
+                       this->hostName = hostName;\r
+                       this->function = function;\r
+               \r
+                       /*if (!this->args->empty())\r
+                               this->args->clear();\r
+               \r
+                       if(!this->properties->empty())\r
+                               this->properties->clear();*/\r
+               }\r
+               \r
+               // callback function used by the dynamic array to cleanup all of its elements.\r
+               void ApplicationHandler::ProcessFactory::freeCstr(void* cstr)\r
+               {\r
+                       free(*(void**)cstr);\r
+               }\r
+               \r
+               void ApplicationHandler::ProcessFactory::registerProcessArg(const char* arg) \r
+               {\r
+                       char* cstr = _strdup(arg);\r
+                       xbt_dynar_push(this->args, &cstr);\r
+               }\r
+               \r
+               void ApplicationHandler::ProcessFactory::setProperty(const char* id, const char* value)\r
+               {\r
+                       // TODO implement this function;        \r
+               }\r
+               \r
+               const char* ApplicationHandler::ProcessFactory::getHostName(void)\r
+               {\r
+                       return this->hostName;\r
+               }\r
 \r
-       if(!this->properties->empty())\r
-               this->properties->clear();\r
-}\r
+       } // namespace Msg\r
+} // namespace SimGrid\r
 \r
-}
\ No newline at end of file