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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 "ABRTException.h"
#include "ABRTCommLayer.h"
#include <dirent.h>
#include <stdio.h>
#include <sys/types.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_sPlugisLibDir.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_LIB_EXTENSION)+1);
if (extension == PLUGINS_LIB_EXTENSION)
{
name.erase(0, sizeof(PLUGINS_LIB_PREFIX) - 1);
name.erase(name.length() - sizeof(PLUGINS_LIB_EXTENSION));
LoadPlugin(name);
}
}
}
closedir(dir);
}
}
void CPluginManager::UnLoadPlugins()
{
map_abrt_plugins_t::iterator it_p;
while ((it_p = m_mapABRTPlugins.begin()) != m_mapABRTPlugins.end())
{
std::string pluginName = it_p->first;
UnLoadPlugin(pluginName);
}
}
void CPluginManager::LoadPlugin(const std::string& pName)
{
if (m_mapABRTPlugins.find(pName) == m_mapABRTPlugins.end())
{
CABRTPlugin* abrtPlugin = NULL;
try
{
std::string libPath = m_sPlugisLibDir + "/" + PLUGINS_LIB_PREFIX + pName + "." + PLUGINS_LIB_EXTENSION;
abrtPlugin = new CABRTPlugin(libPath);
if (abrtPlugin->GetMagicNumber() != PLUGINS_MAGIC_NUMBER ||
(abrtPlugin->GetType() < ANALYZER && abrtPlugin->GetType() > DATABASE))
{
throw CABRTException(EXCEP_PLUGIN, "CPluginManager::LoadPlugin(): non-compatible plugin");
}
ABRTCommLayer::debug("Plugin " + pName + " (" + abrtPlugin->GetVersion() + ") succesfully loaded.");
m_mapABRTPlugins[pName] = abrtPlugin;
}
catch (CABRTException& e)
{
if (abrtPlugin != NULL)
{
delete abrtPlugin;
}
ABRTCommLayer::warning("CPluginManager::LoadPlugin(): " + e.what());
ABRTCommLayer::warning("Failed to load plugin " + pName);
}
}
}
void CPluginManager::UnLoadPlugin(const std::string& pName)
{
if (m_mapABRTPlugins.find(pName) != m_mapABRTPlugins.end())
{
UnRegisterPlugin(pName);
delete m_mapABRTPlugins[pName];
m_mapABRTPlugins.erase(pName);
ABRTCommLayer::debug("Plugin " + pName + " sucessfully unloaded.");
}
}
void CPluginManager::RegisterPlugin(const std::string& pName)
{
if (m_mapABRTPlugins.find(pName) != m_mapABRTPlugins.end())
{
if (m_mapPlugins.find(pName) == m_mapPlugins.end())
{
std::string path = m_sPlugisConfDir + "/" + pName + "." + PLUGINS_CONF_EXTENSION;
CPlugin* plugin = m_mapABRTPlugins[pName]->PluginNew();
try
{
plugin->Init();
plugin->LoadSettings(path);
}
catch (std::string sError)
{
ABRTCommLayer::warning("Can not initialize plugin " + pName + "("
+ std::string(plugin_type_str_t[m_mapABRTPlugins[pName]->GetType()])
+ ")");
UnLoadPlugin(pName);
return;
}
m_mapPlugins[pName] = plugin;
ABRTCommLayer::debug("Registred plugin " + pName + "("
+ std::string(plugin_type_str_t[m_mapABRTPlugins[pName]->GetType()])
+ ")");
}
}
}
void CPluginManager::UnRegisterPlugin(const std::string& pName)
{
if (m_mapABRTPlugins.find(pName) != m_mapABRTPlugins.end())
{
if (m_mapPlugins.find(pName) != m_mapPlugins.end())
{
m_mapPlugins[pName]->DeInit();
delete m_mapPlugins[pName];
m_mapPlugins.erase(pName);
ABRTCommLayer::debug("UnRegistred plugin " + pName + "("
+ std::string(plugin_type_str_t[m_mapABRTPlugins[pName]->GetType()])
+ ")");
}
}
}
CAnalyzer* CPluginManager::GetAnalyzer(const std::string& pName)
{
if (m_mapPlugins.find(pName) == m_mapPlugins.end())
{
throw CABRTException(EXCEP_PLUGIN, "CPluginManager::GetAnalyzer():"
"Analyzer plugin: '"+pName+"' is not loaded.");
}
return dynamic_cast<CAnalyzer*>(m_mapPlugins[pName]);
}
CReporter* CPluginManager::GetReporter(const std::string& pName)
{
if (m_mapPlugins.find(pName) == m_mapPlugins.end())
{
throw CABRTException(EXCEP_PLUGIN, "CPluginManager::GetReporter():"
"Reporter plugin: '"+pName+"' is not loaded.");
}
return dynamic_cast<CReporter*>(m_mapPlugins[pName]);
}
CAction* CPluginManager::GetAction(const std::string& pName)
{
if (m_mapPlugins.find(pName) == m_mapPlugins.end())
{
throw CABRTException(EXCEP_PLUGIN, "CPluginManager::GetAction():"
"Action plugin: '"+pName+"' is not loaded.");
}
return dynamic_cast<CAction*>(m_mapPlugins[pName]);
}
CDatabase* CPluginManager::GetDatabase(const std::string& pName)
{
if (m_mapPlugins.find(pName) == m_mapPlugins.end())
{
throw CABRTException(EXCEP_PLUGIN, "CPluginManager::GetDatabase():"
"Database plugin: '"+pName+"' is not loaded.");
}
return dynamic_cast<CDatabase*>(m_mapPlugins[pName]);
}
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