~drizzle-trunk/drizzle/development

/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-

 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:

 *

 *  Copyright (C) 2010 Padraig O'Sullivan

 *

 *  Authors:

 *

 *    Padraig O'Sullivan <posullivan@akibainc.com>

 *

 *  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

 */

#include "config.h"

#include "drizzled/plugin/query_rewrite.h"

#include "drizzled/gettext.h"

#include <algorithm>

#include <vector>

using namespace std;

namespace drizzled

{

namespace plugin

{

vector<plugin::QueryRewriter *> all_rewriters;

bool QueryRewriter::addPlugin(QueryRewriter *in_rewriter)

{

  if (in_rewriter != NULL)

  {

    all_rewriters.push_back(in_rewriter);

  }

  return false;

}

void QueryRewriter::removePlugin(QueryRewriter *in_rewriter)

{

  if (in_rewriter != NULL)

  {

    all_rewriters.erase(find(all_rewriters.begin(),

                             all_rewriters.end(),

                             in_rewriter));

  }

}

/*

 * This is the QueryRewriter::rewrite entry point.

 * This gets called from within the Drizzle kernel.

 */

void QueryRewriter::rewriteQuery(const string &schema, string &to_rewrite)

{

  for (vector<plugin::QueryRewriter *>::iterator iter= all_rewriters.begin();

       iter != all_rewriters.end();

       ++iter)

  {

    (*iter)->rewrite(schema, to_rewrite);

  }

}

} /* namespace plugin */

} /* namespace drizzled */