/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2013, Regents of the University of California
 *                     Alexander Afanasyev
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
 */

#ifndef NDN_CONTENT_STORE_NOCACHE_H
#define NDN_CONTENT_STORE_NOCACHE_H

#include "ns3/ndnSIM/model/ndn-common.hpp"

#include "ns3/ndnSIM/model/cs/ndn-content-store.hpp"

namespace ns3 {
namespace ndn {
namespace cs {

/**
 * @ingroup ndn-cs
 * @brief Implementation of ContentStore that completely disables caching
 */
class Nocache : public ContentStore {
public:
  /**
   * \brief Interface ID
   *
   * \return interface ID
   */
  static TypeId
  GetTypeId();

  /**
   * @brief Default constructor
   */
  Nocache();

  /**
   * @brief Virtual destructor
   */
  virtual ~Nocache();

  virtual shared_ptr<Data>
  Lookup(shared_ptr<const Interest> interest);

  virtual bool
  Add(shared_ptr<const Data> data);

  virtual void
  Print(std::ostream& os) const;

  virtual uint32_t
  GetSize() const;

  virtual Ptr<cs::Entry>
  Begin();

  virtual Ptr<cs::Entry>
  End();

  virtual Ptr<cs::Entry> Next(Ptr<cs::Entry>);
};

} // namespace cs
} // namespace ndn
} // namespace ns3

#endif // NDN_CONTENT_STORE_NOCACHE_H