blob: c2a9b630b1ea5185c11c2485007871019f4bd9e0 [file] [log] [blame]
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2013-2017 Regents of the University of California.
*
* This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
*
* ndn-cxx library 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.
*
* ndn-cxx library 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 copies of the GNU General Public License and GNU Lesser
* General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
* <http://www.gnu.org/licenses/>.
*
* See AUTHORS.md for complete list of ndn-cxx authors and contributors.
*/
#include "channel-status.hpp"
#include "encoding/encoding-buffer.hpp"
#include "encoding/tlv-nfd.hpp"
#include "util/concepts.hpp"
namespace ndn {
namespace nfd {
BOOST_CONCEPT_ASSERT((StatusDatasetItem<ChannelStatus>));
ChannelStatus::ChannelStatus() = default;
ChannelStatus::ChannelStatus(const Block& payload)
{
this->wireDecode(payload);
}
template<encoding::Tag TAG>
size_t
ChannelStatus::wireEncode(EncodingImpl<TAG>& encoder) const
{
size_t totalLength = 0;
totalLength += encoder.prependByteArrayBlock(tlv::nfd::LocalUri,
reinterpret_cast<const uint8_t*>(m_localUri.data()), m_localUri.size());
totalLength += encoder.prependVarNumber(totalLength);
totalLength += encoder.prependVarNumber(tlv::nfd::ChannelStatus);
return totalLength;
}
template size_t
ChannelStatus::wireEncode<encoding::EncoderTag>(EncodingImpl<encoding::EncoderTag>&) const;
template size_t
ChannelStatus::wireEncode<encoding::EstimatorTag>(EncodingImpl<encoding::EstimatorTag>&) const;
const Block&
ChannelStatus::wireEncode() const
{
if (m_wire.hasWire())
return m_wire;
EncodingEstimator estimator;
size_t estimatedSize = wireEncode(estimator);
EncodingBuffer buffer(estimatedSize, 0);
wireEncode(buffer);
m_wire = buffer.block();
return m_wire;
}
void
ChannelStatus::wireDecode(const Block& block)
{
if (block.type() != tlv::nfd::ChannelStatus) {
BOOST_THROW_EXCEPTION(Error("Expecting ChannelStatus block"));
}
m_wire = block;
m_wire.parse();
Block::element_const_iterator val = m_wire.elements_begin();
if (val != m_wire.elements_end() && val->type() == tlv::nfd::LocalUri) {
m_localUri.assign(reinterpret_cast<const char*>(val->value()), val->value_size());
++val;
}
else {
BOOST_THROW_EXCEPTION(Error("Missing required LocalUri field"));
}
}
ChannelStatus&
ChannelStatus::setLocalUri(const std::string localUri)
{
m_wire.reset();
m_localUri = localUri;
return *this;
}
bool
operator==(const ChannelStatus& a, const ChannelStatus& b)
{
return a.getLocalUri() == b.getLocalUri();
}
std::ostream&
operator<<(std::ostream& os, const ChannelStatus& cs)
{
return os << "Channel(" << "LocalUri: " << cs.getLocalUri() << ")";
}
} // namespace nfd
} // namespace ndn