~drizzle-trunk/drizzle/development

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

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

 *

 *  Copyright (C) 2010 Monty Taylor

 *

 *  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

 */

/**

 * @file

 * @brief An Proxy Wrapper around boost::program_options::variables_map

 */

#pragma once

#include <boost/program_options.hpp>

#include <drizzled/module/option_context.h>

#include <drizzled/visibility.h>

#include <string>

namespace drizzled {

namespace module {

/**

 * Options proxy wrapper. Provides pre-pending of module name to each option

 * which is added.

 */

class DRIZZLED_API option_map

{

public:

  const boost::program_options::variables_map &vm;

  option_map(const std::string &module_name_in,

             const boost::program_options::variables_map &vm_in);

  const boost::program_options::variable_value& operator[](const std::string &name_in) const

  {

    return vm[option_context::prepend_name(module_name, name_in.c_str())];

  }

  size_t count(const std::string &name_in) const

  {

    return vm.count(option_context::prepend_name(module_name, name_in.c_str()));

  }

private:

  const std::string &module_name;

};

} /* namespace module */

} /* namespace drizzled */