**breaking** consolidate src/tlv/*lsa* into src/lsa/*lsa*
Lsa de/serialize functions are replaced by wireEncode/Decode.
Update LSA wire formats. Change TLV assignments as required.
Update nlsrc to print using new encoding.
refs: #4787
Change-Id: Ie8d40b7836d51ea5bb444c8db208dc2b3a0d1cec
diff --git a/src/lsa/lsa.cpp b/src/lsa/lsa.cpp
new file mode 100644
index 0000000..c0d6435
--- /dev/null
+++ b/src/lsa/lsa.cpp
@@ -0,0 +1,167 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2020, The University of Memphis,
+ * Regents of the University of California,
+ * Arizona Board of Regents.
+ *
+ * This file is part of NLSR (Named-data Link State Routing).
+ * See AUTHORS.md for complete list of NLSR authors and contributors.
+ *
+ * NLSR is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NLSR 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
+ * NLSR, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+#include "lsa.hpp"
+#include "nlsr.hpp"
+#include "name-prefix-list.hpp"
+#include "adjacent.hpp"
+#include "tlv/tlv-nlsr.hpp"
+
+namespace nlsr {
+
+Lsa::Lsa(const ndn::Name& originRouter, uint32_t seqNo,
+ ndn::time::system_clock::TimePoint expirationTimePoint)
+ : m_originRouter(originRouter)
+ , m_seqNo(seqNo)
+ , m_expirationTimePoint(expirationTimePoint)
+{
+}
+
+ndn::Name
+Lsa::getKey() const
+{
+ return ndn::Name(m_originRouter).append(boost::lexical_cast<std::string>((getType())));
+}
+
+template<ndn::encoding::Tag TAG>
+size_t
+Lsa::wireEncode(ndn::EncodingImpl<TAG>& encoder) const
+{
+ size_t totalLength = 0;
+
+ totalLength += prependStringBlock(encoder,
+ ndn::tlv::nlsr::ExpirationTime,
+ ndn::time::toString(m_expirationTimePoint));
+
+ totalLength += prependNonNegativeIntegerBlock(encoder, ndn::tlv::nlsr::SequenceNumber,
+ m_seqNo);
+
+ totalLength += m_originRouter.wireEncode(encoder);
+
+ totalLength += encoder.prependVarNumber(totalLength);
+ totalLength += encoder.prependVarNumber(ndn::tlv::nlsr::Lsa);
+
+ return totalLength;
+}
+
+NDN_CXX_DEFINE_WIRE_ENCODE_INSTANTIATIONS(Lsa);
+
+void
+Lsa::wireDecode(const ndn::Block& wire)
+{
+ m_originRouter.clear();
+ m_seqNo = 0;
+
+ m_baseWire = wire;
+
+ if (m_baseWire.type() != ndn::tlv::nlsr::Lsa) {
+ std::stringstream error;
+ error << "Expected Lsa Block, but Block is of a different type: #"
+ << m_baseWire.type();
+ BOOST_THROW_EXCEPTION(Error(error.str()));
+ }
+
+ m_baseWire.parse();
+
+ ndn::Block::element_const_iterator val = m_baseWire.elements_begin();
+
+ if (val != m_baseWire.elements_end() && val->type() == ndn::tlv::Name) {
+ m_originRouter.wireDecode(*val);
+ }
+ else {
+ BOOST_THROW_EXCEPTION(Error("OriginRouter: Missing required Name field"));
+ }
+
+ ++val;
+
+ if (val != m_baseWire.elements_end() && val->type() == ndn::tlv::nlsr::SequenceNumber) {
+ m_seqNo = ndn::readNonNegativeInteger(*val);
+ ++val;
+ }
+ else {
+ BOOST_THROW_EXCEPTION(Error("Missing required SequenceNumber field"));
+ }
+
+ if (val != m_baseWire.elements_end() && val->type() == ndn::tlv::nlsr::ExpirationTime) {
+ m_expirationTimePoint = ndn::time::fromString(readString(*val));
+ }
+ else {
+ BOOST_THROW_EXCEPTION(Error("Missing required ExpirationTimePoint field"));
+ }
+}
+
+std::ostream&
+operator<<(std::ostream& os, const Lsa::Type& type)
+{
+ switch (type) {
+ case nlsr::Lsa::Type::ADJACENCY:
+ os << "ADJACENCY";
+ break;
+
+ case nlsr::Lsa::Type::COORDINATE:
+ os << "COORDINATE";
+ break;
+
+ case nlsr::Lsa::Type::NAME:
+ os << "NAME";
+ break;
+
+ default:
+ os << "BASE";
+ break;
+ }
+ return os;
+}
+
+std::istream&
+operator>>(std::istream& is, Lsa::Type& type)
+{
+ std::string typeString;
+ is >> typeString;
+ if (typeString == "ADJACENCY") {
+ type = Lsa::Type::ADJACENCY;
+ }
+ else if (typeString == "COORDINATE") {
+ type = Lsa::Type::COORDINATE;
+ }
+ else if (typeString == "NAME") {
+ type = Lsa::Type::NAME;
+ }
+ else {
+ type = Lsa::Type::BASE;
+ }
+ return is;
+}
+
+std::string
+Lsa::toString() const
+{
+ std::ostringstream os;
+ auto duration = getExpirationTimePoint() - ndn::time::system_clock::now();
+ os << " " << getType() << " LSA:\n"
+ << " Origin Router : " << getOriginRouter() << "\n"
+ << " Sequence Number : " << getSeqNo() << "\n"
+ << " Expires in : " << ndn::time::duration_cast<ndn::time::milliseconds>(duration)
+ << "\n";
+ return os.str();
+}
+
+} // namespace nlsr