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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
*
* 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
*/
#ifndef DRIZZLED_PLUGIN_REGISTRY_H
#define DRIZZLED_PLUGIN_REGISTRY_H
#include "drizzled/registry.h"
#include <string>
#include <vector>
#include <map>
#include "drizzled/gettext.h"
#include "drizzled/unireg.h"
namespace drizzled
{
namespace plugin
{
class Handle;
class Plugin;
class Registry
{
private:
std::map<std::string, Handle *> handle_map;
::drizzled::Registry<const Plugin *> plugin_registry;
Handle *current_handle;
Registry()
: handle_map(),
plugin_registry(),
current_handle(NULL)
{ }
Registry(const Registry&);
Registry& operator=(const Registry&);
public:
static plugin::Registry& singleton()
{
static plugin::Registry *registry= new plugin::Registry();
return *registry;
}
static void shutdown()
{
plugin::Registry& registry= singleton();
delete ®istry;
}
Handle *find(const LEX_STRING *name);
void add(Handle *handle);
void setCurrentHandle(Handle *plugin)
{
current_handle= plugin;
}
void clearCurrentHandle()
{
current_handle= NULL;
}
std::vector<Handle *> getList(bool active);
template<class T>
void add(T *plugin)
{
plugin->setHandle(current_handle);
bool failed= false;
if (plugin_registry.add(plugin))
failed= true;
if (T::addPlugin(plugin))
failed= true;
if (failed)
{
/* Can't use errmsg_printf here because we might be initializing the
* error_message plugin.
*/
fprintf(stderr,
_("Fatal error: Failed initializing %s plugin."),
plugin->getName().c_str());
unireg_abort(1);
}
}
template<class T>
void remove(T *plugin)
{
T::removePlugin(plugin);
plugin_registry.remove(plugin);
}
};
} /* end namespace plugin */
} /* end namespace drizzled */
#endif /* DRIZZLED_PLUGIN_REGISTRY_H */
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