src/Model/Model_PluginManager.cpp

   1 // File:        Model_PluginManager.cxx
   2 // Created:     20 Mar 2014
   3 // Author:      Mikhail PONIKAROV
   4
   5 #include <Model_PluginManager.h>
   6 #include <ModelAPI_Feature.h>
   7 #include <ModelAPI_Plugin.h>
   8 #include <Model_Data.h>
   9 #include <Model_Document.h>
  10 #include <Model_Application.h>
  11 #include <Model_Events.h>
  12 #include <Model_Validator.h>
  13 #include <Events_Loop.h>
  14 #include <Events_Error.h>
  15 #include <Config_FeatureMessage.h>
  16 #include <Config_ModuleReader.h>
  17
  18 #include <TDF_CopyTool.hxx>
  19 #include <TDF_DataSet.hxx>
  20 #include <TDF_RelocationTable.hxx>
  21 #include <TDF_ClosureTool.hxx>
  22
  23
  24 using namespace std;
  25
  26 static Model_PluginManager* myImpl = new Model_PluginManager();
  27
  28 FeaturePtr Model_PluginManager::createFeature(string theFeatureID)
  29 {
  30   if (this != myImpl) return myImpl->createFeature(theFeatureID);
  31
  32   LoadPluginsInfo();
  33   if (myPlugins.find(theFeatureID) != myPlugins.end()) {
  34     myCurrentPluginName = myPlugins[theFeatureID];
  35     if (myPluginObjs.find(myCurrentPluginName) == myPluginObjs.end()) {
  36       // load plugin library if not yet done
  37       Config_ModuleReader::loadLibrary(myCurrentPluginName);
  38     }
  39     if (myPluginObjs.find(myCurrentPluginName) != myPluginObjs.end()) {
  40       FeaturePtr aCreated =
  41         myPluginObjs[myCurrentPluginName]->createFeature(theFeatureID);
  42       if (!aCreated) {
  43         Events_Error::send(string("Can not initialize feature '") + theFeatureID +
  44           "' in plugin '" + myCurrentPluginName + "'");
  45       }
  46       return aCreated;
  47     } else {
  48       Events_Error::send(string("Can not load plugin '") + myCurrentPluginName + "'");
  49     }
  50   }
  51
  52   return FeaturePtr(); // return nothing
  53 }
  54
  55 boost::shared_ptr<ModelAPI_Document> Model_PluginManager::rootDocument()
  56 {
  57   return boost::shared_ptr<ModelAPI_Document>(
  58     Model_Application::getApplication()->getDocument("root"));
  59 }
  60
  61 bool Model_PluginManager::hasRootDocument()
  62 {
  63   return Model_Application::getApplication()->hasDocument("root");
  64 }
  65
  66 boost::shared_ptr<ModelAPI_Document> Model_PluginManager::currentDocument()
  67 {
  68   if (!myCurrentDoc || !Model_Application::getApplication()->hasDocument(myCurrentDoc->id()))
  69     myCurrentDoc = rootDocument();
  70   return myCurrentDoc;
  71 }
  72
  73 void Model_PluginManager::setCurrentDocument(boost::shared_ptr<ModelAPI_Document> theDoc)
  74 {
  75   myCurrentDoc = theDoc;
  76   static Events_Message aMsg(Events_Loop::eventByName("CurrentDocumentChanged"));
  77   Events_Loop::loop()->send(aMsg);
  78 }
  79
  80 boost::shared_ptr<ModelAPI_Document> Model_PluginManager::copy(
  81   boost::shared_ptr<ModelAPI_Document> theSource, std::string theID)
  82 {
  83   // create a new document
  84   boost::shared_ptr<Model_Document> aNew = boost::dynamic_pointer_cast<Model_Document>(
  85     Model_Application::getApplication()->getDocument(theID));
  86   // make a copy of all labels
  87   TDF_Label aSourceRoot =
  88     boost::dynamic_pointer_cast<Model_Document>(theSource)->document()->Main().Father();
  89   TDF_Label aTargetRoot = aNew->document()->Main().Father();
  90   Handle(TDF_DataSet) aDS = new TDF_DataSet;
  91   aDS->AddLabel(aSourceRoot);
  92   TDF_ClosureTool::Closure(aDS);
  93   Handle(TDF_RelocationTable) aRT = new TDF_RelocationTable;
  94   aRT->SetRelocation(aSourceRoot, aTargetRoot);
  95   TDF_CopyTool::Copy(aDS, aRT);
  96
  97   aNew->synchronizeFeatures();
  98   return aNew;
  99 }
 100
 101 Model_PluginManager::Model_PluginManager()
 102 {
 103   myPluginsInfoLoaded = false;
 104   myCheckTransactions = true;
 105   ModelAPI_PluginManager::setPluginManager(boost::shared_ptr<ModelAPI_PluginManager>(this));
 106   // register the configuration reading listener
 107   Events_Loop* aLoop = Events_Loop::loop();
 108   static Events_ID FeatureEvent = Events_Loop::eventByName("FeatureRegisterEvent");
 109   aLoop->registerListener(this, FeatureEvent);
 110   aLoop->registerListener(this, Events_Loop::eventByName(EVENT_FEATURE_CREATED));
 111   aLoop->registerListener(this, Events_Loop::eventByName(EVENT_FEATURE_UPDATED));
 112   aLoop->registerListener(this, Events_Loop::eventByName(EVENT_FEATURE_DELETED));
 113 }
 114
 115 void Model_PluginManager::processEvent(const Events_Message* theMessage)
 116 {
 117   static Events_ID FeatureEvent = Events_Loop::eventByName("FeatureRegisterEvent");
 118   if (theMessage->eventID() == FeatureEvent) {
 119     const Config_FeatureMessage* aMsg =
 120       dynamic_cast<const Config_FeatureMessage*>(theMessage);
 121     if (aMsg) {
 122       // proccess the plugin info, load plugin
 123       if (myPlugins.find(aMsg->id()) == myPlugins.end()) {
 124         myPlugins[aMsg->id()] = aMsg->pluginLibrary();
 125       }
 126     }
 127     // plugins information was started to load, so, it will be loaded
 128     myPluginsInfoLoaded = true;
 129   } else { // create/update/delete
 130     if (myCheckTransactions && !rootDocument()->isOperation())
 131       Events_Error::send("Modification of data structure outside of the transaction");
 132   }
 133 }
 134
 135 void Model_PluginManager::LoadPluginsInfo()
 136 {
 137   if (myPluginsInfoLoaded) // nothing to do
 138     return;
 139
 140   // Read plugins information from XML files
 141   Config_ModuleReader aXMLReader("FeatureRegisterEvent");
 142   aXMLReader.readAll();
 143 }
 144
 145 void Model_PluginManager::registerPlugin(ModelAPI_Plugin* thePlugin)
 146 {
 147   myPluginObjs[myCurrentPluginName] = thePlugin;
 148 }
 149
 150 ModelAPI_ValidatorsFactory* Model_PluginManager::validators()
 151 {
 152   static Model_ValidatorsFactory* aFactory = new Model_ValidatorsFactory;
 153   return aFactory;
 154 }