helper: Introduce helper to manage NetworkRegionTable
This is to add a mechanism to configure nfd NetworkRegionTable.
Refs: #3806
Change-Id: I13091f481a3d0e45ef46983ea12c84057682460c
diff --git a/examples/ndn-simple-for-nrt-helper/requester-app.cpp b/examples/ndn-simple-for-nrt-helper/requester-app.cpp
new file mode 100644
index 0000000..6eee63c
--- /dev/null
+++ b/examples/ndn-simple-for-nrt-helper/requester-app.cpp
@@ -0,0 +1,111 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2011-2016 Regents of the University of California.
+ *
+ * This file is part of ndnSIM. See AUTHORS for complete list of ndnSIM authors and
+ * contributors.
+ *
+ * ndnSIM 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.
+ *
+ * ndnSIM 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
+ * ndnSIM, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+#include "ns3/core-module.h"
+#include "ns3/ndnSIM/helper/ndn-stack-helper.hpp"
+#include "ns3/ndnSIM/apps/ndn-app.hpp"
+#include "ns3/ndnSIM/ndn-cxx/link.hpp"
+#include "ns3/ndnSIM/ndn-cxx/interest.hpp"
+
+NS_LOG_COMPONENT_DEFINE("RequesterApp");
+
+namespace ns3 {
+namespace ndn {
+
+class RequesterApp : public App
+{
+public:
+ static TypeId
+ GetTypeId()
+ {
+ static TypeId tid = TypeId("RequesterApp")
+ .SetParent<App>()
+ .AddConstructor<RequesterApp>()
+ .AddAttribute("Name", "Name of data to request",
+ StringValue("/data/name"),
+ MakeNameAccessor(&RequesterApp::m_name), MakeNameChecker())
+ .AddAttribute("Delegation", "Delegation name to attach to Interest",
+ StringValue("/"),
+ MakeNameAccessor(&RequesterApp::getDelegation, &RequesterApp::setDelegation), MakeNameChecker())
+ ;
+
+ return tid;
+ }
+
+protected:
+ virtual void
+ StartApplication() override
+ {
+ App::StartApplication();
+
+ Simulator::Schedule(Seconds(1.0), &RequesterApp::sendInterest, this);
+ }
+
+ virtual void
+ StopApplication() override
+ {
+ // do cleanup
+ App::StopApplication();
+ m_face->close();
+ }
+
+private:
+ void
+ setDelegation(const Name& delegation)
+ {
+ m_delegation = delegation;
+
+ m_link = ::ndn::Link(Name(m_name).append("/LINK"));
+ m_link.addDelegation(1, m_delegation);
+ ndn::StackHelper::getKeyChain().sign(m_link, ::ndn::security::SigningInfo(::ndn::security::SigningInfo::SIGNER_TYPE_SHA256));
+
+ NS_LOG_DEBUG("Created Link Object "<< m_link);
+ }
+
+ Name
+ getDelegation() const
+ {
+ return m_delegation;
+ }
+
+ void
+ sendInterest()
+ {
+ auto interest = make_shared<Interest>(m_name);
+ interest->setInterestLifetime(time::seconds(1));
+ if (m_delegation.size() > 0) {
+ interest->setLink(m_link.wireEncode());
+ }
+
+ NS_LOG_DEBUG("Sending an Interest for "<< *interest);
+
+ m_transmittedInterests(interest, this, m_face);
+ m_appLink->onReceiveInterest(*interest);
+ }
+
+private:
+ Name m_name;
+ Name m_delegation;
+ ::ndn::Link m_link;
+};
+
+NS_OBJECT_ENSURE_REGISTERED(RequesterApp);
+
+} // namespace ndn
+} // namespace ns3