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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Sun Microsystems, 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; version 2 of the License.
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <string>
#include <vector>
#include <map>
#include <algorithm>
#include <iosfwd>
#include <boost/algorithm/string.hpp>
#include <boost/scoped_ptr.hpp>
#include <drizzled/gettext.h>
#include <drizzled/unireg.h>
#include <drizzled/errmsg_print.h>
#include <drizzled/plugin/plugin.h>
#include <drizzled/util/find_ptr.h>
namespace drizzled {
namespace module {
class Registry : boost::noncopyable
{
public:
typedef std::map<std::string, Library*> LibraryMap;
typedef std::map<std::string, Module*> ModuleMap;
typedef std::vector<Module*> ModuleList;
private:
LibraryMap library_registry_;
ModuleMap module_registry_;
boost::scoped_ptr<Graph> depend_graph_;
plugin::Plugin::map plugin_registry;
bool deps_built_;
Registry();
~Registry();
void buildDeps();
public:
static Registry& singleton()
{
static Registry* registry= new Registry();
return *registry;
}
static void shutdown();
Module* find(const std::string&);
void add(Module*);
void remove(Module*);
ModuleList getList();
const plugin::Plugin::map &getPluginsMap() const
{
return plugin_registry;
}
const ModuleMap &getModulesMap() const
{
return module_registry_;
}
Library *addLibrary(const std::string &plugin_name, bool builtin= false);
void removeLibrary(const std::string &plugin_name);
Library *findLibrary(const std::string &plugin_name) const;
void shutdownModules();
template<class T>
void add(T *plugin)
{
bool failed= false;
std::string plugin_type(boost::to_lower_copy(plugin->getTypeName()));
std::string plugin_name(boost::to_lower_copy(plugin->getName()));
if (find_ptr(plugin_registry, std::make_pair(plugin_type, plugin_name)))
{
std::string error_message;
error_message+= _("Loading plugin failed, a plugin by that name already exists.");
error_message+= plugin->getTypeName();
error_message+= ":";
error_message+= plugin->getName();
unireg_actual_abort(__FILE__, __LINE__, __func__, error_message);
}
if (T::addPlugin(plugin))
{
std::string error_message;
error_message+= _("Fatal error: Failed initializing: ");
error_message+= plugin->getTypeName();
error_message+= ":";
error_message+= plugin->getName();
unireg_actual_abort(__FILE__, __LINE__, __func__, error_message);
}
if (failed)
{
unireg_abort << _("Fatal error: Failed initializing: ") << plugin->getTypeName() << ":" << plugin->getName();
}
plugin_registry.insert(std::make_pair(std::make_pair(plugin_type, plugin_name), plugin));
}
template<class T>
void remove(T *plugin)
{
std::string plugin_type(boost::to_lower_copy(plugin->getTypeName()));
std::string plugin_name(boost::to_lower_copy(plugin->getName()));
T::removePlugin(plugin);
plugin_registry.erase(std::make_pair(plugin_type, plugin_name));
}
};
} /* namespace module */
} /* namespace drizzled */
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