Producer and consumer helpers
diff --git a/helper/ccnx-consumer-helper.h b/helper/ccnx-consumer-helper.h
new file mode 100644
index 0000000..e512a8f
--- /dev/null
+++ b/helper/ccnx-consumer-helper.h
@@ -0,0 +1,107 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Ilya Moiseenko <iliamo@cs.ucla.edu>
+ */
+
+#ifndef CCNX_CONSUMER_HELPER_H
+#define CCNX_CONSUMER_HELPER_H
+
+#include <stdint.h>
+#include <string>
+#include "ns3/object-factory.h"
+#include "ns3/address.h"
+#include "ns3/attribute.h"
+#include "ns3/net-device.h"
+#include "ns3/node-container.h"
+#include "ns3/application-container.h"
+#include "ns3/ccnx-name-components.h"
+#include "ns3/pointer.h"
+#include "ns3/ccnx-local-face.h"
+#include "ns3/callback.h"
+#include "ns3/ccnx-consumer.h"
+
+namespace ns3
+{
+/**
+* \brief A helper to make it easier to instantiate an ns3::CcnxConsumer Application
+* on a set of nodes.
+*/
+
+class CcnxConsumerHelper
+{
+public:
+
+/**
+* Create an CcnxConsumerHelper to make it easier to work with CcnxConsumer Apps
+*
+*/
+CcnxConsumerHelper (Ptr<CcnxNameComponents> interestName);
+
+/**
+* Helper function used to set the underlying application attributes.
+*
+* \param name the name of the application attribute to set
+* \param value the value of the application attribute to set
+*/
+void SetAttribute (std::string name, const AttributeValue &value);
+
+/**
+* Install an ns3::CcnxConsumer on each node of the input container
+* configured with all the attributes set with SetAttribute.
+*
+* \param c NodeContainer of the set of nodes on which an CcnxConsumer
+* will be installed.
+* \returns Container of Ptr to the applications installed.
+*/
+ApplicationContainer Install (NodeContainer c);
+
+/**
+* Install an ns3::CcnxConsumer on the node configured with all the
+* attributes set with SetAttribute.
+*
+* \param node The node on which an CcnxConsumer will be installed.
+* \returns Container of Ptr to the applications installed.
+*/
+ApplicationContainer Install (Ptr<Node> node);
+
+/**
+* Install an ns3::CcnxConsumer on the node configured with all the
+* attributes set with SetAttribute.
+*
+* \param nodeName The node on which an CcnxConsumer will be installed.
+* \returns Container of Ptr to the applications installed.
+*/
+ApplicationContainer Install (std::string nodeName);
+
+private:
+/**
+* \internal
+* Install an ns3::CcnxConsumer on the node configured with all the
+* attributes set with SetAttribute.
+*
+* \param node The node on which an CcnxConsumer will be installed.
+* \returns Ptr to the application installed.
+*/
+Ptr<Application> InstallPriv (Ptr<Node> node);
+ObjectFactory m_factory;
+
+};
+}
+
+#endif
+