publisher: add LSDB dataset publishers

refs #2280

Change-Id: Ifb1920ef9b807610890b0d0a04f24141d39f011d
diff --git a/src/publisher/lsa-publisher.hpp b/src/publisher/lsa-publisher.hpp
new file mode 100644
index 0000000..09aec8c
--- /dev/null
+++ b/src/publisher/lsa-publisher.hpp
@@ -0,0 +1,137 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2015,  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/>.
+ **/
+
+#ifndef NLSR_PUBLISHER_LSA_PUBLISHER_HPP
+#define NLSR_PUBLISHER_LSA_PUBLISHER_HPP
+
+#include "lsdb.hpp"
+#include "segment-publisher.hpp"
+#include "tlv/adjacency-lsa.hpp"
+#include "tlv/coordinate-lsa.hpp"
+#include "tlv/name-lsa.hpp"
+
+#include <ndn-cxx/face.hpp>
+
+namespace nlsr {
+
+template <class TlvType>
+class LsaPublisher : public SegmentPublisher<ndn::Face>
+{
+public:
+  LsaPublisher(ndn::Face& face,
+                const ndn::Name& prefix,
+                ndn::KeyChain& keyChain,
+                const ndn::Name::Component& datasetComponent)
+  : SegmentPublisher<ndn::Face>(face, ndn::Name(prefix).append(datasetComponent), keyChain)
+  {
+  }
+
+  virtual
+  ~LsaPublisher()
+  {
+  }
+
+protected:
+  virtual size_t
+  generate(ndn::EncodingBuffer& outBuffer)
+  {
+    size_t totalLength = 0;
+
+    for (const TlvType& lsaTlv : getTlvLsas()) {
+      totalLength += lsaTlv.wireEncode(outBuffer);
+    }
+
+    return totalLength;
+  }
+
+  virtual std::list<TlvType>
+  getTlvLsas() = 0;
+};
+
+/**
+ * @brief Abstraction to publish adjacency lsa dataset
+ * \sa http://redmine.named-data.net/projects/nlsr/wiki/LSDB_DataSet
+ */
+class AdjacencyLsaPublisher : public LsaPublisher<tlv::AdjacencyLsa>
+{
+public:
+  AdjacencyLsaPublisher(Lsdb& lsdb,
+                        ndn::Face& face,
+                        const ndn::Name& prefix,
+                        ndn::KeyChain& keyChain);
+
+  std::list<tlv::AdjacencyLsa>
+  getTlvLsas();
+
+public:
+  static const ndn::Name::Component DATASET_COMPONENT;
+
+private:
+  const std::list<AdjLsa>& m_adjacencyLsas;
+};
+
+/**
+ * @brief Abstraction to publish coordinate lsa dataset
+ * \sa http://redmine.named-data.net/projects/nlsr/wiki/LSDB_DataSet
+ */
+class CoordinateLsaPublisher : public LsaPublisher<tlv::CoordinateLsa>
+{
+public:
+  CoordinateLsaPublisher(Lsdb& lsdb,
+                        ndn::Face& face,
+                        const ndn::Name& prefix,
+                        ndn::KeyChain& keyChain);
+
+  std::list<tlv::CoordinateLsa>
+  getTlvLsas();
+
+public:
+  static const ndn::Name::Component DATASET_COMPONENT;
+
+private:
+  const std::list<CoordinateLsa>& m_coordinateLsas;
+};
+
+/**
+ * @brief Abstraction to publish name lsa dataset
+ * \sa http://redmine.named-data.net/projects/nlsr/wiki/LSDB_DataSet
+ */
+class NameLsaPublisher : public LsaPublisher<tlv::NameLsa>
+{
+public:
+  NameLsaPublisher(Lsdb& lsdb,
+                   ndn::Face& face,
+                   const ndn::Name& prefix,
+                   ndn::KeyChain& keyChain);
+
+  std::list<tlv::NameLsa>
+  getTlvLsas();
+
+public:
+  static const ndn::Name::Component DATASET_COMPONENT;
+
+private:
+  const std::list<NameLsa>& m_nameLsas;
+};
+
+} // namespace nlsr
+
+#endif // NLSR_PUBLISHER_LSA_PUBLISHER_HPP