mgmt+core: Moving SegmentPublisher to core/ and removing KeyChain from nfd::AppFace
This change ensures interface uniformity between nfd::AppFace and
ndn::Face and allow now templated version of SegmentPublisher to be used
with either.
Change-Id: I82e29528b13b37bd2ae27ef47db30e8c87c15a38
Refs: #1749
diff --git a/core/segment-publisher.hpp b/core/segment-publisher.hpp
new file mode 100644
index 0000000..287b5ac
--- /dev/null
+++ b/core/segment-publisher.hpp
@@ -0,0 +1,120 @@
+/* -*- 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_CORE_SEGMENT_PUBLISHER_HPP
+#define NFD_CORE_SEGMENT_PUBLISHER_HPP
+
+#include "common.hpp"
+
+#include <ndn-cxx/encoding/encoding-buffer.hpp>
+#include <ndn-cxx/security/key-chain.hpp>
+
+namespace nfd {
+
+template <class FaceBase>
+class SegmentPublisher : noncopyable
+{
+public:
+ SegmentPublisher(FaceBase& face, const Name& prefix, ndn::KeyChain& keyChain)
+ : m_face(face)
+ , m_prefix(prefix)
+ , m_keyChain(keyChain)
+ {
+ }
+
+ virtual
+ ~SegmentPublisher()
+ {
+ }
+
+ static size_t
+ getMaxSegmentSize()
+ {
+ static const size_t MAX_SEGMENT_SIZE = ndn::MAX_NDN_PACKET_SIZE >> 1;
+ return MAX_SEGMENT_SIZE;
+ }
+
+ void
+ publish()
+ {
+ Name segmentPrefix(m_prefix);
+ segmentPrefix.appendVersion();
+
+ ndn::EncodingBuffer buffer;
+
+ generate(buffer);
+
+ const uint8_t* rawBuffer = buffer.buf();
+ const uint8_t* segmentBegin = rawBuffer;
+ const uint8_t* end = rawBuffer + buffer.size();
+
+ uint64_t segmentNo = 0;
+ while (segmentBegin < end)
+ {
+ const uint8_t* segmentEnd = segmentBegin + getMaxSegmentSize();
+ if (segmentEnd > end)
+ {
+ segmentEnd = end;
+ }
+
+ Name segmentName(segmentPrefix);
+ segmentName.appendSegment(segmentNo);
+
+ shared_ptr<Data> data(make_shared<Data>(segmentName));
+ data->setContent(segmentBegin, segmentEnd - segmentBegin);
+
+ segmentBegin = segmentEnd;
+ if (segmentBegin >= end)
+ {
+ data->setFinalBlockId(segmentName[-1]);
+ }
+
+ publishSegment(data);
+ segmentNo++;
+ }
+ }
+
+protected:
+
+ virtual size_t
+ generate(ndn::EncodingBuffer& outBuffer) =0;
+
+private:
+ void
+ publishSegment(shared_ptr<Data>& data)
+ {
+ m_keyChain.sign(*data);
+ m_face.put(*data);
+ }
+
+private:
+ FaceBase& m_face;
+ const Name m_prefix;
+ ndn::KeyChain& m_keyChain;
+};
+
+} // namespace nfd
+
+#endif // NFD_CORE_SEGMENT_PUBLISHER_HPP