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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2013-2019 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 "ndn-cxx/link.hpp"
namespace ndn {
BOOST_CONCEPT_ASSERT((boost::EqualityComparable<Link>));
BOOST_CONCEPT_ASSERT((WireEncodable<Link>));
BOOST_CONCEPT_ASSERT((WireEncodableWithEncodingBuffer<Link>));
BOOST_CONCEPT_ASSERT((WireDecodable<Link>));
static_assert(std::is_base_of<Data::Error, Link::Error>::value,
"Link::Error should inherit from Data::Error");
Link::Link() = default;
Link::Link(const Block& wire, bool wantSort)
{
this->wireDecode(wire, wantSort);
}
Link::Link(const Name& name, std::initializer_list<Delegation> dels)
: Data(name)
, m_delList(dels)
{
encodeContent();
}
void
Link::encodeContent()
{
setContentType(tlv::ContentType_Link);
if (m_delList.size() > 0) {
EncodingEstimator estimator;
size_t estimatedSize = m_delList.wireEncode(estimator, tlv::Content);
EncodingBuffer buffer(estimatedSize, 0);
m_delList.wireEncode(buffer, tlv::Content);
setContent(buffer.block());
}
else {
setContent(nullptr, 0);
}
}
void
Link::wireDecode(const Block& wire, bool wantSort)
{
Data::wireDecode(wire);
if (getContentType() != tlv::ContentType_Link) {
NDN_THROW(Error("Expecting ContentType Link, got " + to_string(getContentType())));
}
m_delList.wireDecode(getContent(), wantSort);
}
void
Link::setDelegationList(const DelegationList& dels)
{
m_delList = dels;
encodeContent();
}
void
Link::addDelegation(uint32_t preference, const Name& name)
{
m_delList.insert(preference, name, DelegationList::INS_REPLACE);
encodeContent();
}
bool
Link::removeDelegation(const Name& name)
{
size_t nErased = m_delList.erase(name);
if (nErased > 0) {
encodeContent();
}
return nErased > 0;
}
} // namespace ndn