ndn-data.h

/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
/*
 * Copyright (c) 2011-2013 University of California, Los Angeles
 *
 * 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: Ilya Moiseenko <iliamo@cs.ucla.edu>
 *         Alexander Afanasyev <alexander.afanasyev@ucla.edu>
 */

#ifndef _NDN_CONTENT_OBJECT_HEADER_H_
#define _NDN_CONTENT_OBJECT_HEADER_H_

#include "ns3/simple-ref-count.h"
#include "ns3/nstime.h"
#include "ns3/packet.h"
#include "ns3/ptr.h"

#include <ns3/ndn-name.h>

namespace ns3 {
namespace ndn {

class Data : public SimpleRefCount<Data>
{
public:
  Data (Ptr<Packet> payload = Create<Packet> ());

  Data (const Data &other);

  void
  SetName (Ptr<Name> name);

  void
  SetName (const Name &name);
  
  const Name&
  GetName () const;

  Ptr<const Name>
  GetNamePtr () const;

  void
  SetTimestamp (const Time &timestamp);

  Time
  GetTimestamp () const;

  void
  SetFreshness (const Time &freshness);

  Time
  GetFreshness () const;

  void
  SetSignature (uint32_t signature);

  uint32_t
  GetSignature () const;

  void
  SetKeyLocator (Ptr<Name> keyLocator);

  Ptr<const Name>
  GetKeyLocator () const;
  

  void
  SetPayload (Ptr<Packet> payload);

  Ptr<const Packet>
  GetPayload () const;
  
  inline Ptr<const Packet>
  GetWire () const;

  inline void
  SetWire (Ptr<const Packet> packet) const;

  void
  Print (std::ostream &os) const;
  
private:
  // NO_ASSIGN
  Data &
  operator = (const Data &other) { return *this; }
  
private:
  Ptr<Name> m_name;
  Time m_freshness;
  Time m_timestamp;
  uint32_t m_signature; // 0, means no signature, any other value application dependent (not a real signature)
  Ptr<Packet> m_payload;
  Ptr<Name> m_keyLocator;

  mutable Ptr<const Packet> m_wire;
};

inline std::ostream &
operator << (std::ostream &os, const Data &d)
{
  d.Print (os);
  return os;
}

class DataException {};

inline Ptr<const Packet>
Data::GetWire () const
{
  return m_wire;
}

inline void
Data::SetWire (Ptr<const Packet> packet) const
{
  m_wire = packet;
}


} // namespace ndn
} // namespace ns3

#endif // _NDN_CONTENT_OBJECT_HEADER_H_