mgmt: Dispatcher
Change-Id: I92b3dc9daae75abac9d791632b6a0bec111b4573
refs: #2107
diff --git a/src/mgmt/status-dataset-context.cpp b/src/mgmt/status-dataset-context.cpp
new file mode 100644
index 0000000..1d386ef
--- /dev/null
+++ b/src/mgmt/status-dataset-context.cpp
@@ -0,0 +1,139 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2015, 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/>.
+ */
+
+#include "status-dataset-context.hpp"
+
+namespace ndn {
+namespace mgmt {
+
+const time::milliseconds DEFAULT_STATUS_DATASET_FRESHNESS_PERIOD = time::milliseconds(1000);
+
+const Name&
+StatusDatasetContext::getPrefix() const
+{
+ return m_prefix;
+}
+
+StatusDatasetContext&
+StatusDatasetContext::setPrefix(const Name& prefix)
+{
+ if (!m_interest.getName().isPrefixOf(prefix)) {
+ BOOST_THROW_EXCEPTION(std::invalid_argument("prefix does not start with Interest Name"));
+ }
+
+ if (m_state != State::INITIAL) {
+ BOOST_THROW_EXCEPTION(std::domain_error("state is not in INITIAL"));
+ }
+
+ m_prefix = prefix;
+
+ if (!m_prefix[-1].isVersion()) {
+ m_prefix.appendVersion();
+ }
+
+ return *this;
+}
+
+const time::milliseconds&
+StatusDatasetContext::getExpiry() const
+{
+ return m_expiry;
+}
+
+StatusDatasetContext&
+StatusDatasetContext::setExpiry(const time::milliseconds& expiry)
+{
+ m_expiry = expiry;
+ return *this;
+}
+
+void
+StatusDatasetContext::append(const Block& block)
+{
+ if (m_state == State::FINALIZED) {
+ BOOST_THROW_EXCEPTION(std::domain_error("state is in FINALIZED"));
+ }
+
+ m_state = State::RESPONDED;
+
+ size_t nBytesLeft = block.size();
+
+ while (nBytesLeft > 0) {
+ size_t nBytesAppend = std::min(nBytesLeft,
+ (ndn::MAX_NDN_PACKET_SIZE >> 1) - m_buffer->size());
+ m_buffer->appendByteArray(block.wire() + (block.size() - nBytesLeft), nBytesAppend);
+ nBytesLeft -= nBytesAppend;
+
+ if (nBytesLeft > 0) {
+ const Block& content = makeBinaryBlock(tlv::Content, m_buffer->buf(), m_buffer->size());
+ m_dataSender(Name(m_prefix).appendSegment(m_segmentNo++), content,
+ MetaInfo().setFreshnessPeriod(m_expiry));
+
+ m_buffer = std::make_shared<EncodingBuffer>();
+ }
+ }
+}
+
+void
+StatusDatasetContext::end()
+{
+ if (m_state == State::FINALIZED) {
+ BOOST_THROW_EXCEPTION(std::domain_error("state is in FINALIZED"));
+ }
+
+ m_state = State::FINALIZED;
+
+ auto dataName = Name(m_prefix).appendSegment(m_segmentNo++);
+ m_dataSender(dataName, makeBinaryBlock(tlv::Content, m_buffer->buf(), m_buffer->size()),
+ MetaInfo().setFreshnessPeriod(m_expiry).setFinalBlockId(dataName[-1]));
+}
+
+void
+StatusDatasetContext::reject(const ControlResponse& resp /*= a ControlResponse with 400*/)
+{
+ if (m_state != State::INITIAL) {
+ BOOST_THROW_EXCEPTION(std::domain_error("state is in REPONSED or FINALIZED"));
+ }
+
+ m_state = State::FINALIZED;
+
+ m_dataSender(m_interest.getName(), resp.wireEncode(),
+ MetaInfo().setType(tlv::ContentType_Nack));
+}
+
+StatusDatasetContext::StatusDatasetContext(const Interest& interest,
+ const DataSender& dataSender)
+ : m_interest(interest)
+ , m_dataSender(dataSender)
+ , m_expiry(DEFAULT_STATUS_DATASET_FRESHNESS_PERIOD)
+ , m_buffer(make_shared<EncodingBuffer>())
+ , m_segmentNo(0)
+ , m_state(State::INITIAL)
+{
+ setPrefix(interest.getName());
+}
+
+} // namespace mgmt
+} // namespace ndn