face, mgmt: add channel status dataset publisher

Expose channel maps in protocol factories

Change-Id: I057b1bba638bfc9372867318653d71ba7d0e9888
Refs: #1631, #1653
diff --git a/daemon/mgmt/channel-status-publisher.hpp b/daemon/mgmt/channel-status-publisher.hpp
new file mode 100644
index 0000000..b204258
--- /dev/null
+++ b/daemon/mgmt/channel-status-publisher.hpp
@@ -0,0 +1,58 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014,  Regents of the University of California,
+ *                      Arizona Board of Regents,
+ *                      Colorado State University,
+ *                      University Pierre & Marie Curie, Sorbonne University,
+ *                      Washington University in St. Louis,
+ *                      Beijing Institute of Technology,
+ *                      The University of Memphis
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD 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.
+ *
+ * NFD 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
+ * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef NFD_DAEMON_MGMT_CHANNEL_STATUS_PUBLISHER_HPP
+#define NFD_DAEMON_MGMT_CHANNEL_STATUS_PUBLISHER_HPP
+
+#include "mgmt/segment-publisher.hpp"
+
+namespace nfd {
+
+class ProtocolFactory;
+
+class ChannelStatusPublisher : public SegmentPublisher
+{
+public:
+  typedef std::map< std::string/*protocol*/, shared_ptr<ProtocolFactory> > FactoryMap;
+
+  ChannelStatusPublisher(const FactoryMap& factories,
+                         shared_ptr<AppFace> face,
+                         const Name& prefix);
+
+  virtual
+  ~ChannelStatusPublisher();
+
+protected:
+
+  virtual size_t
+  generate(ndn::EncodingBuffer& outBuffer);
+
+private:
+  const FactoryMap& m_factories;
+};
+
+} // namespace nfd
+
+#endif // NFD_DAEMON_MGMT_CHANNEL_STATUS_PUBLISHER_HPP