face: Refactor Face as LinkService+Transport

LpFace: new Face implementation
LpFaceWrapper: allows new Face system to work with old Face system

Eventually, LpFace will be renamed to Face and LpFaceWrapper will be removed.

refs #3088 #3179

Change-Id: Ia4ad7c84631e65b444d4f24e1d7593392927c8db
diff --git a/tests/daemon/face/dummy-lp-face.cpp b/tests/daemon/face/dummy-lp-face.cpp
new file mode 100644
index 0000000..20fb20d
--- /dev/null
+++ b/tests/daemon/face/dummy-lp-face.cpp
@@ -0,0 +1,140 @@
+/* -*- 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 "dummy-lp-face.hpp"
+#include "dummy-transport.hpp"
+
+namespace nfd {
+namespace face {
+namespace tests {
+
+class DummyLpFace::LinkService : public face::LinkService
+{
+public:
+  void
+  receiveInterest(const Interest& interest)
+  {
+    this->face::LinkService::receiveInterest(interest);
+  }
+
+  void
+  receiveData(const Data& data)
+  {
+    this->face::LinkService::receiveData(data);
+  }
+
+  void
+  receiveNack(const lp::Nack& nack)
+  {
+    this->face::LinkService::receiveNack(nack);
+  }
+
+  signal::Signal<LinkService> afterSend;
+
+private:
+  virtual void
+  doSendInterest(const Interest& interest) DECL_OVERRIDE
+  {
+    this->sentInterests.push_back(interest);
+    this->afterSend();
+  }
+
+  virtual void
+  doSendData(const Data& data) DECL_OVERRIDE
+  {
+    this->sentData.push_back(data);
+    this->afterSend();
+  }
+
+  virtual void
+  doSendNack(const lp::Nack& nack) DECL_OVERRIDE
+  {
+    this->sentNacks.push_back(nack);
+    this->afterSend();
+  }
+
+  virtual void
+  doReceivePacket(Transport::Packet&& packet) DECL_OVERRIDE
+  {
+    BOOST_ASSERT(false);
+  }
+
+public:
+  std::vector<Interest> sentInterests;
+  std::vector<Data> sentData;
+  std::vector<lp::Nack> sentNacks;
+};
+
+DummyLpFace::DummyLpFace(const std::string& localUri, const std::string& remoteUri,
+                         ndn::nfd::FaceScope scope, ndn::nfd::FacePersistency persistency,
+                         ndn::nfd::LinkType linkType)
+  : LpFace(make_unique<LinkService>(),
+           make_unique<DummyTransport>(localUri, remoteUri, scope, persistency, linkType))
+  , afterSend(this->getLinkServiceInternal()->afterSend)
+  , sentInterests(this->getLinkServiceInternal()->sentInterests)
+  , sentData(this->getLinkServiceInternal()->sentData)
+  , sentNacks(this->getLinkServiceInternal()->sentNacks)
+{
+}
+
+void
+DummyLpFace::setState(FaceState state)
+{
+  this->getTransportInternal()->setState(state);
+}
+
+void
+DummyLpFace::receiveInterest(const Interest& interest)
+{
+  this->getLinkServiceInternal()->receiveInterest(interest);
+}
+
+void
+DummyLpFace::receiveData(const Data& data)
+{
+  this->getLinkServiceInternal()->receiveData(data);
+}
+
+void
+DummyLpFace::receiveNack(const lp::Nack& nack)
+{
+  this->getLinkServiceInternal()->receiveNack(nack);
+}
+
+DummyLpFace::LinkService*
+DummyLpFace::getLinkServiceInternal()
+{
+  return static_cast<LinkService*>(this->getLinkService());
+}
+
+DummyTransport*
+DummyLpFace::getTransportInternal()
+{
+  return static_cast<DummyTransport*>(this->getTransport());
+}
+
+} // namespace tests
+} // namespace face
+} // namespace nfd