management: replace FaceFlags with individual fields

refs #1992

Change-Id: I2b8e999fcf27444b8f3805f23da9f8ef9bcb5624
diff --git a/src/management/nfd-face-event-notification.cpp b/src/management/nfd-face-event-notification.cpp
new file mode 100644
index 0000000..d459de4
--- /dev/null
+++ b/src/management/nfd-face-event-notification.cpp
@@ -0,0 +1,186 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2014 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library 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 Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#include "nfd-face-event-notification.hpp"
+
+namespace ndn {
+namespace nfd {
+FaceEventNotification::FaceEventNotification()
+  : FaceTraits()
+  , m_kind(static_cast<FaceEventKind>(0))
+{
+}
+
+FaceEventNotification::FaceEventNotification(const Block& block)
+{
+  this->wireDecode(block);
+}
+
+template<bool T>
+size_t
+FaceEventNotification::wireEncode(EncodingImpl<T>& encoder) const
+{
+  size_t totalLength = 0;
+
+  totalLength += prependNonNegativeIntegerBlock(encoder,
+                 tlv::nfd::LinkType, m_linkType);
+  totalLength += prependNonNegativeIntegerBlock(encoder,
+                 tlv::nfd::FacePersistency, m_facePersistency);
+  totalLength += prependNonNegativeIntegerBlock(encoder,
+                 tlv::nfd::FaceScope, m_faceScope);
+  totalLength += prependByteArrayBlock(encoder, tlv::nfd::LocalUri,
+                 reinterpret_cast<const uint8_t*>(m_localUri.c_str()), m_localUri.size());
+  totalLength += prependByteArrayBlock(encoder, tlv::nfd::Uri,
+                 reinterpret_cast<const uint8_t*>(m_remoteUri.c_str()), m_remoteUri.size());
+  totalLength += prependNonNegativeIntegerBlock(encoder,
+                 tlv::nfd::FaceId, m_faceId);
+  totalLength += prependNonNegativeIntegerBlock(encoder,
+                 tlv::nfd::FaceEventKind, m_kind);
+
+  totalLength += encoder.prependVarNumber(totalLength);
+  totalLength += encoder.prependVarNumber(tlv::nfd::FaceEventNotification);
+  return totalLength;
+}
+
+const Block&
+FaceEventNotification::wireEncode() const
+{
+  if (m_wire.hasWire())
+    return m_wire;
+
+  EncodingEstimator estimator;
+  size_t estimatedSize = wireEncode(estimator);
+
+  EncodingBuffer buffer(estimatedSize, 0);
+  wireEncode(buffer);
+
+  m_wire = buffer.block();
+  return m_wire;
+}
+
+void
+FaceEventNotification::wireDecode(const Block& block)
+{
+  if (block.type() != tlv::nfd::FaceEventNotification) {
+    throw Error("expecting FaceEventNotification block");
+  }
+  m_wire = block;
+  m_wire.parse();
+  Block::element_const_iterator val = m_wire.elements_begin();
+
+  if (val != m_wire.elements_end() && val->type() == tlv::nfd::FaceEventKind) {
+    m_kind = static_cast<FaceEventKind>(readNonNegativeInteger(*val));
+    ++val;
+  }
+  else {
+    throw Error("missing required FaceEventKind field");
+  }
+
+  if (val != m_wire.elements_end() && val->type() == tlv::nfd::FaceId) {
+    m_faceId = readNonNegativeInteger(*val);
+    ++val;
+  }
+  else {
+    throw Error("missing required FaceId field");
+  }
+
+  if (val != m_wire.elements_end() && val->type() == tlv::nfd::Uri) {
+    m_remoteUri.assign(reinterpret_cast<const char*>(val->value()), val->value_size());
+    ++val;
+  }
+  else {
+    throw Error("missing required Uri field");
+  }
+
+  if (val != m_wire.elements_end() && val->type() == tlv::nfd::LocalUri) {
+    m_localUri.assign(reinterpret_cast<const char*>(val->value()), val->value_size());
+    ++val;
+  }
+  else {
+    throw Error("missing required LocalUri field");
+  }
+
+  if (val != m_wire.elements_end() && val->type() == tlv::nfd::FaceScope) {
+    m_faceScope = static_cast<FaceScope>(readNonNegativeInteger(*val));
+    ++val;
+  }
+  else {
+    throw Error("missing required FaceScope field");
+  }
+
+  if (val != m_wire.elements_end() && val->type() == tlv::nfd::FacePersistency) {
+    m_facePersistency = static_cast<FacePersistency>(readNonNegativeInteger(*val));
+    ++val;
+  }
+  else {
+    throw Error("missing required FacePersistency field");
+  }
+
+  if (val != m_wire.elements_end() && val->type() == tlv::nfd::LinkType) {
+    m_linkType = static_cast<LinkType>(readNonNegativeInteger(*val));
+    ++val;
+  }
+  else {
+    throw Error("missing required LinkType field");
+  }
+}
+
+FaceEventNotification&
+FaceEventNotification::setKind(FaceEventKind kind)
+{
+  m_wire.reset();
+  m_kind = kind;
+  return *this;
+}
+
+void
+FaceEventNotification::wireReset() const
+{
+  m_wire.reset();
+}
+
+std::ostream&
+operator<<(std::ostream& os, const FaceEventNotification& notification)
+{
+  os << "FaceEventNotification(";
+
+  switch (notification.getKind())
+    {
+    case FACE_EVENT_CREATED:
+      os << "Kind: created, ";
+      break;
+    case FACE_EVENT_DESTROYED:
+      os << "Kind: destroyed, ";
+      break;
+    }
+
+  os << "FaceID: " << notification.getFaceId() << ", "
+     << "RemoteUri: " << notification.getRemoteUri() << ", "
+     << "LocalUri: " << notification.getLocalUri() << ", "
+     << "FaceScope: " << notification.getFaceScope() << ", "
+     << "FacePersistency: " << notification.getFacePersistency() << ", "
+     << "LinkType: " << notification.getLinkType()
+     << ")";
+  return os;
+}
+
+} // namespace nfd
+} // namespace ndn