+// Copyright (C) 2014-20xx CEA/DEN, EDF R&D
+
/*
* Config_ModuleReader.cpp
*
#include <libxml/parser.h>
#include <libxml/tree.h>
+// Have to be included before std headers
+#include <Python.h>
+
//Necessary for cerr
#include <iostream>
+#include <algorithm>
#ifdef WIN32
#include <windows.h>
+#pragma warning(disable : 4996) // for getenv
#else
#include <dlfcn.h>
#endif
+std::map<std::string, Config_ModuleReader::PluginType> Config_ModuleReader::myPluginTypes;
+std::set<std::string> Config_ModuleReader::myDependencyModules;
+
Config_ModuleReader::Config_ModuleReader(const char* theEventGenerated)
- : Config_XMLReader("plugins.xml"), myEventGenerated(theEventGenerated)
+ : Config_XMLReader(PLUGIN_FILE),
+ myEventGenerated(theEventGenerated)
{
}
return myFeaturesInFiles;
}
-/*
+/*!
* Get module name from plugins.xml
* (property "module")
*/
return getProperty(aRoot, PLUGINS_MODULE);
}
-/*
- *
- */
void Config_ModuleReader::processNode(xmlNodePtr theNode)
{
if (isNode(theNode, NODE_PLUGIN, NULL)) {
+ if (!hasRequiredModules(theNode))
+ return;
std::string aPluginConf = getProperty(theNode, PLUGIN_CONFIG);
std::string aPluginLibrary = getProperty(theNode, PLUGIN_LIBRARY);
- std::list<std::string> aFeatures = importPlugin(aPluginLibrary, aPluginConf);
+ std::string aPluginScript = getProperty(theNode, PLUGIN_SCRIPT);
+ std::string aPluginName = addPlugin(aPluginLibrary, aPluginScript, aPluginConf);
+
+ std::list<std::string> aFeatures = importPlugin(aPluginName, aPluginConf);
std::list<std::string>::iterator it = aFeatures.begin();
- for(; it != aFeatures.end(); it++) {
+ for (; it != aFeatures.end(); it++) {
myFeaturesInFiles[*it] = aPluginConf;
}
}
return isNode(theNode, NODE_PLUGINS, NULL);
}
+bool Config_ModuleReader::hasRequiredModules(xmlNodePtr theNode) const
+{
+ std::string aRequiredModule = normalize(getProperty(theNode, PLUGIN_DEPENDENCY));
+ if(aRequiredModule.empty())
+ return true;
+ std::set<std::string>::iterator it = myDependencyModules.begin();
+ for ( ; it != myDependencyModules.end(); it++ ) {
+ if (*it == aRequiredModule) return true;
+ }
+ return false;
+}
+
std::list<std::string> Config_ModuleReader::importPlugin(const std::string& thePluginLibrary,
- const std::string& thePluginFile)
+ const std::string& thePluginXmlConf)
{
- if (thePluginFile.empty()) { //probably a third party library
+ if (thePluginXmlConf.empty()) { //probably a third party library
loadLibrary(thePluginLibrary);
return std::list<std::string>();
}
- Config_FeatureReader aReader = Config_FeatureReader(thePluginFile, thePluginLibrary,
+ Config_FeatureReader aReader = Config_FeatureReader(thePluginXmlConf,
+ thePluginLibrary,
myEventGenerated);
aReader.readAll();
return aReader.features();
}
-void Config_ModuleReader::loadLibrary(const std::string theLibName)
+std::string Config_ModuleReader::addPlugin(const std::string& aPluginLibrary,
+ const std::string& aPluginScript,
+ const std::string& aPluginConf)
+{
+ PluginType aType = Config_ModuleReader::Binary;
+ std::string aPluginName;
+ if (!aPluginLibrary.empty()) {
+ aPluginName = aPluginLibrary;
+ if (aPluginConf.empty()) {
+ aType = Config_ModuleReader::Intrenal;
+ }
+ } else if (!aPluginScript.empty()) {
+ aPluginName = aPluginScript;
+ aType = Config_ModuleReader::Python;
+ }
+ if(!aPluginName.empty()) {
+ myPluginTypes[aPluginName] = aType;
+ }
+ addDependencyModule(aPluginName);
+ return aPluginName;
+}
+
+void Config_ModuleReader::loadPlugin(const std::string& thePluginName)
+{
+ PluginType aType = Config_ModuleReader::Binary;
+ if(myPluginTypes.find(thePluginName) != myPluginTypes.end()) {
+ aType = myPluginTypes.at(thePluginName);
+ }
+ switch (aType) {
+ case Config_ModuleReader::Python:
+ loadScript(thePluginName);
+ break;
+ case Config_ModuleReader::Binary:
+ case Config_ModuleReader::Intrenal:
+ default:
+ loadLibrary(thePluginName);
+ break;
+ }
+}
+
+void Config_ModuleReader::loadScript(const std::string& theFileName)
+{
+ /* aquire python thread */
+ PyGILState_STATE gstate = PyGILState_Ensure();
+
+ PyObject* module = PyImport_ImportModule(theFileName.c_str());
+ if (!module) {
+ std::string anErrorMsg = "An error occured while importing " + theFileName;
+ //Get detailed error message:
+ if (PyErr_Occurred()) {
+ PyObject *pstr, *ptype, *pvalue, *ptraceback;
+ PyErr_Fetch(&ptype, &pvalue, &ptraceback);
+ PyErr_NormalizeException(&ptype, &pvalue, &ptraceback);
+ pstr = PyObject_Str(pvalue);
+ std::string aPyError = std::string(PyString_AsString(pstr));
+ if (!aPyError.empty()) {
+ anErrorMsg += ":\n" + aPyError;
+ }
+ Py_XDECREF(pstr);
+ Py_XDECREF(ptype);
+ Py_XDECREF(pvalue);
+ Py_XDECREF(ptraceback);
+ }
+ Events_Error::send(anErrorMsg);
+ }
+
+ /* release python thread */
+ PyGILState_Release(gstate);
+}
+
+void Config_ModuleReader::loadLibrary(const std::string& theLibName)
{
-#ifdef _DEBUG
- std::cout << "Config_ModuleReader::loading library... " << theLibName.c_str() << std::endl;
-#endif
std::string aFileName = library(theLibName);
if (aFileName.empty())
return;
#ifdef WIN32
HINSTANCE aModLib = ::LoadLibrary(aFileName.c_str());
- if (!aModLib) {
- std::string errorMsg = "Failed to load " + aFileName;
- std::cerr << errorMsg << std::endl;
- Events_Error::send(errorMsg);
- }
#else
- void* aModLib = dlopen( aFileName.c_str(), RTLD_LAZY );
- if ( !aModLib ) {
- std::cerr << "Failed to load " << aFileName.c_str() << std::endl;
- }
+ void* aModLib = dlopen( aFileName.c_str(), RTLD_LAZY | RTLD_GLOBAL );
#endif
+ if(!aModLib && theLibName != "DFBrowser") { // don't show error for internal debugging tool
+ std::string anErrorMsg = "Failed to load " + aFileName;
+ #ifndef WIN32
+ anErrorMsg += ": " + std::string(dlerror());
+ #endif
+ std::cerr << anErrorMsg << std::endl;
+ Events_Error::send(anErrorMsg);
+ }
+}
+
+void Config_ModuleReader::addDependencyModule(const std::string& theModuleName)
+{
+ myDependencyModules.insert(normalize(theModuleName));
}
