/*
 * StorageBackend.h
 *
 * Copyright (C) 2009 Matthias Schiffer <matthias@gamezock.de>
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef MAD_COMMON_STORAGEBACKEND_H_
#define MAD_COMMON_STORAGEBACKEND_H_

#include "XmlData.h"
#include <Core/Exception.h>

#include <boost/shared_ptr.hpp>
#include <set>

namespace Mad {
namespace Common {

class StorageManager;

class StorageBackend {
  protected:
    friend class StorageManager;

    virtual std::set<Core::String> listTypes() throw (Core::Exception) = 0;
    virtual std::set<Core::String> list(const Core::String &type) throw (Core::Exception) = 0;

    virtual bool exists(const Core::String &type, const Core::String &name) throw (Core::Exception) {
      return (list(type).count(name) > 0);
    }

    virtual void store(const Core::String &type, const Core::String &name, const XmlData *data) throw (Core::Exception) = 0;
    virtual boost::shared_ptr<XmlData> load(const Core::String &type, const Core::String &name) throw (Core::Exception) = 0;

    virtual void copy(const Core::String &type, const Core::String &name, const Core::String &newName) throw (Core::Exception) = 0;
    virtual void rename(const Core::String &type, const Core::String &name, const Core::String &newName) throw (Core::Exception) = 0;
    virtual void remove(const Core::String &type, const Core::String &name) throw (Core::Exception) = 0;

  public:
    virtual ~StorageBackend() {}
};

}
}

#endif /* MAD_COMMON_STORAGEBACKEND_H_ */