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/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2011 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>
*/
#include "ndn-producer.h"
#include "ns3/log.h"
#include "ns3/ndn-interest-header.h"
#include "ns3/ndn-content-object-header.h"
#include "ns3/string.h"
#include "ns3/uinteger.h"
#include "ns3/packet.h"
#include "ns3/simulator.h"
#include "ns3/ndn-app-face.h"
#include "ns3/ndn-fib.h"
// #include "../model/ndn-fib-impl.h"
#include <boost/ref.hpp>
#include <boost/lambda/lambda.hpp>
#include <boost/lambda/bind.hpp>
namespace ll = boost::lambda;
NS_LOG_COMPONENT_DEFINE ("ndn.Producer");
namespace ns3 {
namespace ndn {
NS_OBJECT_ENSURE_REGISTERED (Producer);
TypeId
Producer::GetTypeId (void)
{
static TypeId tid = TypeId ("ns3::ndn::Producer")
.SetGroupName ("Ndn")
.SetParent<App> ()
.AddConstructor<Producer> ()
.AddAttribute ("Prefix","Prefix, for which producer has the data",
StringValue ("/"),
MakeNameComponentsAccessor (&Producer::m_prefix),
MakeNameComponentsChecker ())
.AddAttribute ("PayloadSize", "Virtual payload size for Content packets",
UintegerValue (1024),
MakeUintegerAccessor(&Producer::m_virtualPayloadSize),
MakeUintegerChecker<uint32_t>())
// optional attributes
.AddAttribute ("SignatureBits", "SignatureBits field",
UintegerValue (0),
MakeUintegerAccessor(&Producer::m_signatureBits),
MakeUintegerChecker<uint32_t> ())
;
return tid;
}
Producer::Producer ()
{
// NS_LOG_FUNCTION_NOARGS ();
}
// inherited from Application base class.
void
Producer::StartApplication ()
{
NS_LOG_FUNCTION_NOARGS ();
NS_ASSERT (GetNode ()->GetObject<Fib> () != 0);
App::StartApplication ();
NS_LOG_DEBUG ("NodeID: " << GetNode ()->GetId ());
Ptr<Fib> fib = GetNode ()->GetObject<Fib> ();
Ptr<fib::Entry> fibEntry = fib->Add (m_prefix, m_face, 0);
fibEntry->UpdateStatus (m_face, fib::FaceMetric::NDN_FIB_GREEN);
// // make face green, so it will be used primarily
// StaticCast<fib::FibImpl> (fib)->modify (fibEntry,
// ll::bind (&fib::Entry::UpdateStatus,
// ll::_1, m_face, fib::FaceMetric::NDN_FIB_GREEN));
}
void
Producer::StopApplication ()
{
NS_LOG_FUNCTION_NOARGS ();
NS_ASSERT (GetNode ()->GetObject<Fib> () != 0);
App::StopApplication ();
}
void
Producer::OnInterest (const Ptr<const InterestHeader> &interest, Ptr<Packet> origPacket)
{
App::OnInterest (interest, origPacket); // tracing inside
NS_LOG_FUNCTION (this << interest);
if (!m_active) return;
static ContentObjectTail tail;
Ptr<ContentObjectHeader> header = Create<ContentObjectHeader> ();
header->SetName (Create<NameComponents> (interest->GetName ()));
header->GetSignedInfo ().SetTimestamp (Simulator::Now ());
header->GetSignature ().SetSignatureBits (m_signatureBits);
NS_LOG_INFO ("node("<< GetNode()->GetId() <<") respodning with ContentObject:\n" << boost::cref(*header));
Ptr<Packet> packet = Create<Packet> (m_virtualPayloadSize);
// Ptr<const WeightsPathStretchTag> tag = origPacket->RemovePacketTag<WeightsPathStretchTag> ();
// if (tag != 0)
// {
// // std::cout << Simulator::Now () << ", " << m_app->GetInstanceTypeId ().GetName () << "\n";
// // echo back WeightsPathStretchTag
// packet->AddPacketTag (CreateObject<WeightsPathStretchTag> (*tag));
// // \todo
// // packet->AddPacketTag should actually accept Ptr<const WeightsPathStretchTag> instead of
// // Ptr<WeightsPathStretchTag>. Echoing will be simplified after change is done
// }
packet->AddHeader (*header);
packet->AddTrailer (tail);
m_protocolHandler (packet);
m_transmittedContentObjects (header, packet, this, m_face);
}
} // namespace ndn
} // namespace ns3