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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: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
*/
#include "ccnb-parser-interest-visitor.h"
#include "../syntax-tree/ccnb-parser-block.h"
#include "../syntax-tree/ccnb-parser-dtag.h"
#include "ns3/ccnx-name-components.h"
#include "ns3/assert.h"
#include "ns3/nstime.h"
#include "ns3/ccnx-interest-header.h"
#include "ccnb-parser-name-components-visitor.h"
#include "ccnb-parser-non-negative-integer-visitor.h"
#include "ccnb-parser-timestamp-visitor.h"
#include "ccnb-parser-uint32t-blob-visitor.h"
#include <boost/foreach.hpp>
#include "ns3/log.h"
NS_LOG_COMPONENT_DEFINE ("CcnbParserInterestVisitor");
namespace ns3 {
namespace CcnbParser {
// We don't care about any other fields
void
InterestVisitor::visit (Dtag &n, boost::any param/*should be CcnxInterestHeader* */)
{
// uint32_t n.m_dtag;
// std::list<Ptr<Block> > n.m_nestedBlocks;
static NonNegativeIntegerVisitor nonNegativeIntegerVisitor;
static NameComponentsVisitor nameComponentsVisitor;
static TimestampVisitor timestampVisitor;
static Uint32tBlobVisitor nonceVisitor;
CcnxInterestHeader &interest = *(boost::any_cast<CcnxInterestHeader*> (param));
switch (n.m_dtag)
{
case CCN_DTAG_Interest:
NS_LOG_DEBUG ("Interest");
// process nested blocks
BOOST_FOREACH (Ptr<Block> block, n.m_nestedTags)
{
block->accept (*this, param);
}
break;
case CCN_DTAG_Name:
{
NS_LOG_DEBUG ("Name");
// process name components
Ptr<CcnxNameComponents> name = Create<CcnxNameComponents> ();
BOOST_FOREACH (Ptr<Block> block, n.m_nestedTags)
{
block->accept (nameComponentsVisitor, &(*name));
}
interest.SetName (name);
break;
}
case CCN_DTAG_MinSuffixComponents:
NS_LOG_DEBUG ("MinSuffixComponents");
if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
throw CcnbDecodingException ();
interest.SetMinSuffixComponents (
boost::any_cast<uint32_t> (
(*n.m_nestedTags.begin())->accept(
nonNegativeIntegerVisitor
)));
break;
case CCN_DTAG_MaxSuffixComponents:
NS_LOG_DEBUG ("MaxSuffixComponents");
if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
throw CcnbDecodingException ();
interest.SetMaxSuffixComponents (
boost::any_cast<uint32_t> (
(*n.m_nestedTags.begin())->accept(
nonNegativeIntegerVisitor
)));
break;
case CCN_DTAG_Exclude:
{
NS_LOG_DEBUG ("Exclude");
// process exclude components
Ptr<CcnxNameComponents> exclude = Create<CcnxNameComponents> ();
BOOST_FOREACH (Ptr<Block> block, n.m_nestedTags)
{
block->accept (nameComponentsVisitor, &(*exclude));
}
interest.SetExclude (exclude);
break;
}
case CCN_DTAG_ChildSelector:
NS_LOG_DEBUG ("ChildSelector");
if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
throw CcnbDecodingException ();
interest.SetChildSelector (
1 == boost::any_cast<uint32_t> (
(*n.m_nestedTags.begin())->accept(
nonNegativeIntegerVisitor
)));
break;
case CCN_DTAG_AnswerOriginKind:
NS_LOG_DEBUG ("AnswerOriginKind");
if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
throw CcnbDecodingException ();
interest.SetAnswerOriginKind (
1 == boost::any_cast<uint32_t> (
(*n.m_nestedTags.begin())->accept(
nonNegativeIntegerVisitor
)));
break;
case CCN_DTAG_Scope:
NS_LOG_DEBUG ("Scope");
if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
throw CcnbDecodingException ();
interest.SetScope (
boost::any_cast<uint32_t> (
(*n.m_nestedTags.begin())->accept(
nonNegativeIntegerVisitor
)));
break;
case CCN_DTAG_InterestLifetime:
NS_LOG_DEBUG ("InterestLifetime");
if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
throw CcnbDecodingException ();
interest.SetInterestLifetime (
boost::any_cast<Time> (
(*n.m_nestedTags.begin())->accept(
timestampVisitor
)));
break;
case CCN_DTAG_Nonce:
NS_LOG_DEBUG ("Nonce");
if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
throw CcnbDecodingException ();
interest.SetNonce (
boost::any_cast<uint32_t> (
(*n.m_nestedTags.begin())->accept(
nonceVisitor
)));
break;
case CCN_DTAG_Nack:
NS_LOG_DEBUG ("Nack");
if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
throw CcnbDecodingException ();
interest.SetNack (
boost::any_cast<uint32_t> (
(*n.m_nestedTags.begin())->accept(nonNegativeIntegerVisitor)));
break;
}
}
} // namespace CcnbParser
} // namespace ns3