ClusterDefinition.h

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/* -*- c++ -*-
 * Copyright (C) 2007-2015 Hypertable, Inc.
 *
 * This file is part of Hypertable.
 *
 * Hypertable 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 3 of the
 * License, or any later version.
 *
 * Hypertable 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 Common_ClusterDefinition_ClusterDefinition_h
#define Common_ClusterDefinition_ClusterDefinition_h

#include <ctime>
#include <mutex>
#include <string>
#include <unordered_map>
#include <vector>

namespace Hypertable {
namespace ClusterDefinition {


  class ClusterDefinition {

  public:

    ClusterDefinition(const std::string &fname) : m_fname(fname) {};

    void get_role_members(const std::string &role,
                          std::vector<std::string> &members,
                          int64_t *generation = nullptr);

  private:

    void load_file();

    void add_role(const std::string &text);

    std::mutex m_mutex;

    std::string m_fname;

    time_t m_last_mtime {};

    std::unordered_map<std::string, std::vector<std::string>> m_roles;

  };


}}

#endif // Common_ClusterDefinition_ClusterDefinition_h