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/*
    PluginManager.h - header file for plugin manager. it takes care about
                      (un)loading plugins

    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.
*/
#ifndef PLUGINMANAGER_H_
#define PLUGINMANAGER_H_

#include "abrt_types.h"
#include "plugin.h"
#include "analyzer.h"
#include "database.h"
#include "action.h"

class CLoadedModule; /* opaque */

/**
 * A class. It takes care of loading, registering and manipulating with
 * plugins. When a plugin is loaded, its library is opened, but no plugin
 * instance is created. It is possible after plugin registration.
 */
class CPluginManager
{
    private:
        typedef std::map<std::string, CLoadedModule*> map_loaded_module_t;
        typedef std::map<std::string, CPlugin*> map_plugin_t;

        /**
         * Loaded plugins. A key is a plugin name.
         */
        map_loaded_module_t m_mapLoadedModules;
        /**
         * Registered plugins. A key is a plugin name.
         */
        map_plugin_t m_mapPlugins;
        /**
         * List of all possible plugins (loaded or not), with some attributes.
         */
        map_map_string_t m_map_plugin_settings;

    public:
        /**
         * A constructor.
         * @param pPluginsConfDir A plugins configuration directory.
         * @param pPluginsLibDir A plugins library directory.
         */
        CPluginManager();
        /**
         * A destructor.
         */
        ~CPluginManager();
        /**
         * A method, which loads all plugins in plugins library direcotry.
         */
        void LoadPlugins();
        /**
         * A method, which unregister and unload all loaded plugins.
         */
        void UnLoadPlugins();
        /**
         * A method, which loads particular plugin.
         * @param pName A plugin name.
         */
        CPlugin* LoadPlugin(const char *pName, bool enabled_only = false);
        /**
         * A method, which unloads particular plugin.
         * @param pName A plugin name.
         */
        void UnLoadPlugin(const char *pName);
        /**
         * A method, which returns instance of particular action plugin.
         * @param pName A plugin name.
         * @return An action plugin.
         */
        CAction* GetAction(const char *pName, bool silent = false);
        /**
         * A method, which returns instance of particular database plugin.
         * @param pName A plugin name.
         * @return A database plugin.
         */
        CDatabase* GetDatabase(const char *pName);
        /**
         * A method, which returns type of particular plugin.
         * @param pName A plugin name.
         * @return A plugin type.
         */
        plugin_type_t GetPluginType(const char *pName);
};

#endif /*PLUGINMANAGER_H_*/