HyperspaceTableCache.h

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/*
 * 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 Hypertable_HyperspaceTableCache_h
#define Hypertable_HyperspaceTableCache_h

#include "Hypertable/Lib/Schema.h"

#include "Hyperspace/Session.h"

#include <map>
#include <memory>

namespace Hypertable {


  class HyperspaceTableCache {
  public:

    class Entry {
    public:
      SchemaPtr schema;
      bool maintenance_disabled {};
    };

    HyperspaceTableCache(Hyperspace::SessionPtr &hyperspace,
                     const String &toplevel_dir);

    bool get(const String &table_id, Entry &entry);

  private:

    void map_table_schemas(const String &parent,
                           const std::vector<Hyperspace::DirEntryAttr> &listing);

    void map_maintenance_disabled(const String &parent,
                                  const std::vector<Hyperspace::DirEntryAttr> &listing);

    typedef std::map<String, Entry> TableEntryMap;

    TableEntryMap m_map;
  };

  typedef std::shared_ptr<HyperspaceTableCache> HyperspaceTableCachePtr;

}

#endif // Hypertable_HyperspaceTableCache_h