1 // Copyright (C) 2014-2017 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or
18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
23 #include <Config_Keywords.h>
24 #include <Config_Common.h>
25 #include <Config_ModuleReader.h>
26 #include <Config_FeatureReader.h>
27 #include <Config_PluginMessage.h>
28 #include <Events_InfoMessage.h>
30 #include <libxml/parser.h>
31 #include <libxml/tree.h>
33 // Have to be included before std headers
42 #pragma warning(disable : 4996) // for getenv
47 std::map<std::string, Config_ModuleReader::PluginType> Config_ModuleReader::myPluginTypes;
48 std::set<std::string> Config_ModuleReader::myDependencyModules;
50 Config_ModuleReader::Config_ModuleReader(const char* theEventGenerated)
51 : Config_XMLReader(PLUGIN_FILE),
52 myEventGenerated(theEventGenerated)
56 Config_ModuleReader::~Config_ModuleReader()
60 const std::map<std::string, std::string>& Config_ModuleReader::featuresInFiles() const
62 return myFeaturesInFiles;
65 const std::set<std::string>& Config_ModuleReader::modulePluginFiles() const
71 * Get module name from plugins.xml
74 std::string Config_ModuleReader::getModuleName()
76 xmlNodePtr aRoot = findRoot();
77 return getProperty(aRoot, PLUGINS_MODULE);
81 void Config_ModuleReader::addFeature(const std::string& theFeatureName,
82 const std::string& thePluginConfig)
84 if (myFeaturesInFiles.count(theFeatureName)) {
85 std::string anErrorMsg = "Can not register feature '%1' in plugin '%2'."
86 " There is a feature with the same ID.";
87 Events_InfoMessage("Config_ModuleReader", anErrorMsg)
88 .arg(theFeatureName).arg(thePluginConfig).send();
92 myFeaturesInFiles[theFeatureName] = thePluginConfig;
95 void Config_ModuleReader::processNode(xmlNodePtr theNode)
97 if (isNode(theNode, NODE_PLUGIN, NULL)) {
98 if (!hasRequiredModules(theNode))
100 std::string aPluginConf = getProperty(theNode, PLUGIN_CONFIG);
101 if (!aPluginConf.empty())
102 myPluginFiles.insert(aPluginConf);
103 std::string aPluginLibrary = getProperty(theNode, PLUGIN_LIBRARY);
104 std::string aPluginScript = getProperty(theNode, PLUGIN_SCRIPT);
105 std::string aPluginName = addPlugin(aPluginLibrary, aPluginScript, aPluginConf);
106 std::string aUsesPlugin = getProperty(theNode, PLUGIN_USES);
107 if (!aUsesPlugin.empty()) { // send information about the plugin dependencies
108 std::shared_ptr<Config_PluginMessage> aMess(new Config_PluginMessage(
109 Events_Loop::loop()->eventByName(Config_PluginMessage::EVENT_ID()), aPluginName));
110 aMess->setUses(aUsesPlugin);
111 Events_Loop::loop()->send(aMess);
114 std::list<std::string> aFeatures = importPlugin(aPluginName, aPluginConf);
115 std::list<std::string>::iterator it = aFeatures.begin();
116 for (; it != aFeatures.end(); it++) {
117 addFeature(*it, aPluginConf);
122 bool Config_ModuleReader::processChildren(xmlNodePtr theNode)
124 return isNode(theNode, NODE_PLUGINS, NULL);
127 bool Config_ModuleReader::hasRequiredModules(xmlNodePtr theNode) const
129 std::string aRequiredModule = normalize(getProperty(theNode, PLUGIN_DEPENDENCY));
130 if(aRequiredModule.empty())
132 std::set<std::string>::iterator it = myDependencyModules.begin();
133 for ( ; it != myDependencyModules.end(); it++ ) {
134 if (*it == aRequiredModule) return true;
139 std::list<std::string> Config_ModuleReader::importPlugin(const std::string& thePluginLibrary,
140 const std::string& thePluginXmlConf)
142 if (thePluginXmlConf.empty()) { //probably a third party library
143 loadLibrary(thePluginLibrary);
144 return std::list<std::string>();
147 Config_FeatureReader aReader = Config_FeatureReader(thePluginXmlConf,
151 return aReader.features();
154 std::string Config_ModuleReader::addPlugin(const std::string& aPluginLibrary,
155 const std::string& aPluginScript,
156 const std::string& aPluginConf)
158 PluginType aType = Config_ModuleReader::Binary;
159 std::string aPluginName;
160 if (!aPluginLibrary.empty()) {
161 aPluginName = aPluginLibrary;
162 if (aPluginConf.empty()) {
163 aType = Config_ModuleReader::Intrenal;
165 } else if (!aPluginScript.empty()) {
166 aPluginName = aPluginScript;
167 aType = Config_ModuleReader::Python;
169 if(!aPluginName.empty()) {
170 myPluginTypes[aPluginName] = aType;
172 addDependencyModule(aPluginName);
176 void Config_ModuleReader::loadPlugin(const std::string& thePluginName)
178 // informs model that plugin loading is started
179 static const Events_ID kEVENT_ID =
180 Events_Loop::loop()->eventByName(Config_PluginMessage::EVENT_ID());
181 std::shared_ptr<Config_PluginMessage> aMess(new Config_PluginMessage(kEVENT_ID, thePluginName));
182 Events_Loop::loop()->send(aMess);
184 PluginType aType = Config_ModuleReader::Binary;
185 if(myPluginTypes.find(thePluginName) != myPluginTypes.end()) {
186 aType = myPluginTypes.at(thePluginName);
189 case Config_ModuleReader::Python:
190 loadScript(thePluginName);
192 case Config_ModuleReader::Binary:
193 case Config_ModuleReader::Intrenal:
195 loadLibrary(thePluginName);
200 void Config_ModuleReader::loadScript(const std::string& theFileName, bool theSendErr)
202 /* acquire python thread */
203 PyGILState_STATE gstate = PyGILState_Ensure();
205 PyObject* module = PyImport_ImportModule(theFileName.c_str());
207 std::string anErrorMsg = "An error occurred while importing " + theFileName;
208 //Get detailed error message:
209 if (PyErr_Occurred()) {
210 PyObject *pstr, *ptype, *pvalue, *ptraceback;
211 PyErr_Fetch(&ptype, &pvalue, &ptraceback);
212 PyErr_NormalizeException(&ptype, &pvalue, &ptraceback);
213 pstr = PyObject_Str(pvalue);
214 std::string aPyError = std::string(PyUnicode_AsUTF8(pstr));
215 if (!aPyError.empty()) {
216 anErrorMsg += ":\n" + aPyError;
221 Py_XDECREF(ptraceback);
224 Events_InfoMessage("Config_ModuleReader", anErrorMsg).send();
227 /* release python thread */
228 PyGILState_Release(gstate);
231 void Config_ModuleReader::loadLibrary(const std::string& theLibName)
233 std::string aFileName = library(theLibName);
234 if (aFileName.empty())
238 HINSTANCE aModLib = ::LoadLibraryA(aFileName.c_str());
240 void* aModLib = dlopen( aFileName.c_str(), RTLD_LAZY | RTLD_GLOBAL );
242 if(!aModLib && theLibName != "DFBrowser") { // don't show error for internal debugging tool
243 std::string anErrorMsg = "Failed to load " + aFileName;
245 DWORD dwLastError = ::GetLastError();
246 LPSTR messageBuffer = NULL;
247 size_t size = ::FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER |
248 FORMAT_MESSAGE_FROM_SYSTEM |
249 FORMAT_MESSAGE_IGNORE_INSERTS,
252 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
253 (LPSTR)&messageBuffer, 0, NULL);
254 anErrorMsg += ": " + std::string(messageBuffer, size);
256 anErrorMsg += ": " + std::string(dlerror());
258 std::cerr << anErrorMsg << std::endl;
259 Events_InfoMessage("Config_ModuleReader", anErrorMsg).send();
263 void Config_ModuleReader::addDependencyModule(const std::string& theModuleName)
265 myDependencyModules.insert(normalize(theModuleName));