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/*
PluginManager.cpp
Copyright (C) 2009 Zdenek Prikryl (zprikryl@redhat.com)
Copyright (C) 2009 RedHat inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <iostream>
#include "PluginManager.h"
#include <dirent.h>
#include <stdio.h>
#include <sys/types.h>
#include "Settings.h"
CPluginManager::CPluginManager(const std::string& pPlugisConfDir,
const std::string& pPlugisLibDir) :
m_sPlugisConfDir(pPlugisConfDir),
m_sPlugisLibDir(pPlugisLibDir)
{}
CPluginManager::~CPluginManager()
{}
void CPluginManager::LoadPlugins()
{
DIR *dir = opendir(m_sPlugisConfDir.c_str());
struct dirent *dent = NULL;
if (dir != NULL)
{
while ((dent = readdir(dir)) != NULL)
{
if (dent->d_type == DT_REG)
{
std::string name = dent->d_name;
std::string extension = name.substr(name.length()-sizeof(PLUGINS_CONF_EXTENSION)+1);
if (extension == PLUGINS_CONF_EXTENSION)
{
name.erase(name.length()-sizeof(PLUGINS_CONF_EXTENSION));
LoadPlugin(name);
}
}
}
closedir(dir);
}
}
void CPluginManager::UnLoadPlugins()
{
map_crash_catcher_plugins_t::iterator it_p;
while ((it_p = m_mapCrashCatcherPlugins.begin()) != m_mapCrashCatcherPlugins.end())
{
std::string pluginName = it_p->first;
UnLoadPlugin(pluginName);
}
}
void CPluginManager::LoadPlugin(const std::string& pName)
{
if (m_mapCrashCatcherPlugins.find(pName) == m_mapCrashCatcherPlugins.end())
{
CCrashCatcherPlugin* crashCatcherPlugin = NULL;
try
{
std::string libPath = m_sPlugisLibDir + "/lib" + pName + "." + PLUGINS_LIB_EXTENSIONS;
crashCatcherPlugin = new CCrashCatcherPlugin(libPath);
if (crashCatcherPlugin->GetMagicNumber() != PLUGINS_MAGIC_NUMBER ||
(crashCatcherPlugin->GetType() < LANGUAGE && crashCatcherPlugin->GetType() > DATABASE))
{
throw std::string("non-compatible plugin");
}
std::cerr << "Plugin " << pName << " (" << crashCatcherPlugin->GetVersion() << ") " << "succesfully loaded." << std::endl;
m_mapCrashCatcherPlugins[pName] = crashCatcherPlugin;
}
catch (std::string sError)
{
if (crashCatcherPlugin != NULL)
{
delete crashCatcherPlugin;
}
std::cerr << "Failed to load plugin " << pName << " (" << sError << ")." << std::endl;
}
}
}
void CPluginManager::UnLoadPlugin(const std::string& pName)
{
if (m_mapCrashCatcherPlugins.find(pName) != m_mapCrashCatcherPlugins.end())
{
UnRegisterPlugin(pName);
delete m_mapCrashCatcherPlugins[pName];
m_mapCrashCatcherPlugins.erase(pName);
std::cerr << "Plugin " << pName << " sucessfully unloaded." << std::endl;
}
}
void CPluginManager::RegisterPlugin(const std::string& pName)
{
if (m_mapCrashCatcherPlugins.find(pName) != m_mapCrashCatcherPlugins.end())
{
if (m_mapPlugins.find(pName) == m_mapPlugins.end())
{
map_settings_t settings;
std::string path = m_sPlugisConfDir + "/" + pName + "." + PLUGINS_CONF_EXTENSION;
load_settings(path, settings);
CPlugin* plugin = m_mapCrashCatcherPlugins[pName]->PluginNew();
plugin->Init();
plugin->SetSettings(settings);
m_mapPlugins[pName] = plugin;
std::cerr << "Registred plugin " << pName << "("
<< plugin_type_str_t[m_mapCrashCatcherPlugins[pName]->GetType()]
<< ")" << std::endl;
}
}
}
void CPluginManager::UnRegisterPlugin(const std::string& pName)
{
if (m_mapCrashCatcherPlugins.find(pName) != m_mapCrashCatcherPlugins.end())
{
if (m_mapPlugins.find(pName) != m_mapPlugins.end())
{
m_mapPlugins[pName]->DeInit();
delete m_mapPlugins[pName];
m_mapPlugins.erase(pName);
std::cerr << "UnRegistred plugin " << pName << "("
<< plugin_type_str_t[m_mapCrashCatcherPlugins[pName]->GetType()]
<< ")" << std::endl;
}
}
}
CLanguage* CPluginManager::GetLanguage(const std::string& pName)
{
if (m_mapPlugins.find(pName) == m_mapPlugins.end())
{
throw std::string("CPluginManager::GetLanguage():"
"Language plugin: '"+pName+"' is not loaded.");
}
return (CLanguage*) m_mapPlugins[pName];
}
CReporter* CPluginManager::GetReporter(const std::string& pName)
{
if (m_mapPlugins.find(pName) == m_mapPlugins.end())
{
throw std::string("CPluginManager::GetReporter():"
"Reporter plugin: '"+pName+"' is not loaded.");
}
return (CReporter*) m_mapPlugins[pName];
}
CApplication* CPluginManager::GetApplication(const std::string& pName)
{
if (m_mapPlugins.find(pName) == m_mapPlugins.end())
{
throw std::string("CPluginManager::GetApplication():"
"Application plugin: '"+pName+"' is not loaded.");
}
return (CApplication*) m_mapPlugins[pName];
}
CDatabase* CPluginManager::GetDatabase(const std::string& pName)
{
if (m_mapPlugins.find(pName) == m_mapPlugins.end())
{
throw std::string("CPluginManager::GetDatabase():"
"Database plugin: '"+pName+"' is not loaded.");
}
return (CDatabase*) m_mapPlugins[pName];
}
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