helper: StrategyChoiceHelper
diff --git a/helper/ndn-strategy-choice-helper.cpp b/helper/ndn-strategy-choice-helper.cpp
new file mode 100644
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+++ b/helper/ndn-strategy-choice-helper.cpp
@@ -0,0 +1,75 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2011-2014 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 "ndn-strategy-choice-helper.hpp"
+
+#include "ns3/log.h"
+
+#include "ndn-stack-helper.hpp"
+
+namespace ns3 {
+namespace ndn {
+
+NS_LOG_COMPONENT_DEFINE("ndn.StrategyChoiceHelper");
+
+void
+StrategyChoiceHelper::sendCommand(const ControlParameters& parameters, Ptr<Node> node)
+{
+ NS_LOG_DEBUG("Strategy choice command was initialized");
+ Block encodedParameters(parameters.wireEncode());
+
+ Name commandName("/localhost/nfd/strategy-choice");
+ commandName.append("set");
+ commandName.append(encodedParameters);
+
+ shared_ptr<Interest> command(make_shared<Interest>(commandName));
+ StackHelper::getKeyChain().signWithSha256(*command);
+ Ptr<L3Protocol> L3protocol = node->GetObject<L3Protocol>();
+ auto strategyChoiceManager = L3protocol->getStrategyChoiceManager();
+ strategyChoiceManager->onStrategyChoiceRequest(*command);
+ NS_LOG_DEBUG("Forwarding strategy installed in node " << node->GetId());
+}
+
+void
+StrategyChoiceHelper::Install(const NodeContainer& c, const Name& namePrefix, const Name& strategy)
+{
+ for (NodeContainer::Iterator i = c.Begin(); i != c.End(); ++i) {
+ Install(*i, namePrefix, strategy);
+ }
+}
+
+void
+StrategyChoiceHelper::Install(Ptr<Node> node, const Name& namePrefix, const Name& strategy)
+{
+ ControlParameters parameters;
+ parameters.setName(namePrefix);
+ NS_LOG_DEBUG("Node ID: " << node->GetId() << " with forwarding strategy " << strategy);
+ parameters.setStrategy(strategy);
+ sendCommand(parameters, node);
+}
+
+void
+StrategyChoiceHelper::InstallAll(const Name& namePrefix, const Name& strategy)
+{
+ Install(NodeContainer::GetGlobal(), namePrefix, strategy);
+}
+
+} // namespace ndn
+
+} // namespace ns