First step of refactoring code (ccnx prefix => ndn prefix)
diff --git a/apps/ndn-consumer-cbr.cc b/apps/ndn-consumer-cbr.cc
new file mode 100644
index 0000000..ef52ef5
--- /dev/null
+++ b/apps/ndn-consumer-cbr.cc
@@ -0,0 +1,145 @@
+/* -*-  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>
+ */
+
+#include "ndn-consumer-cbr.h"
+#include "ns3/ptr.h"
+#include "ns3/log.h"
+#include "ns3/simulator.h"
+#include "ns3/packet.h"
+#include "ns3/callback.h"
+#include "ns3/string.h"
+#include "ns3/boolean.h"
+#include "ns3/uinteger.h"
+#include "ns3/double.h"
+
+#include "ns3/ndn.h"
+#include "ns3/ndn-app-face.h"
+#include "ns3/ndn-interest-header.h"
+#include "ns3/ndn-content-object-header.h"
+
+NS_LOG_COMPONENT_DEFINE ("NdnConsumerCbr");
+
+namespace ns3
+{    
+    
+NS_OBJECT_ENSURE_REGISTERED (NdnConsumerCbr);
+    
+TypeId
+NdnConsumerCbr::GetTypeId (void)
+{
+  static TypeId tid = TypeId ("ns3::NdnConsumerCbr")
+    .SetGroupName ("Ndn")
+    .SetParent<NdnConsumer> ()
+    .AddConstructor<NdnConsumerCbr> ()
+
+    .AddAttribute ("Frequency", "Frequency of interest packets",
+                   StringValue ("1.0"),
+                   MakeDoubleAccessor (&NdnConsumerCbr::m_frequency),
+                   MakeDoubleChecker<double> ())
+    .AddAttribute ("Randomize", "Type of send time randomization: none (default), uniform, exponential",
+                   StringValue ("none"),
+                   MakeStringAccessor (&NdnConsumerCbr::SetRandomize, &NdnConsumerCbr::GetRandomize),
+                   MakeStringChecker ())
+    ;
+
+  return tid;
+}
+    
+NdnConsumerCbr::NdnConsumerCbr ()
+  : m_frequency (1.0)
+  , m_firstTime (true)
+  , m_random (0)
+{
+  NS_LOG_FUNCTION_NOARGS ();
+  m_seqMax = std::numeric_limits<uint32_t>::max ();
+}
+
+NdnConsumerCbr::~NdnConsumerCbr ()
+{
+  if (m_random)
+    delete m_random;
+}
+
+void
+NdnConsumerCbr::ScheduleNextPacket ()
+{
+  // double mean = 8.0 * m_payloadSize / m_desiredRate.GetBitRate ();
+  // std::cout << "next: " << Simulator::Now().ToDouble(Time::S) + mean << "s\n";
+
+  if (m_firstTime)
+    {
+      m_sendEvent = Simulator::Schedule (Seconds (0.0),
+                                         &NdnConsumer::SendPacket, this);
+      m_firstTime = false;
+    }
+  else if (!m_sendEvent.IsRunning ())
+    m_sendEvent = Simulator::Schedule (
+                                       (m_random == 0) ?
+                                         Seconds(1.0 / m_frequency)
+                                       :
+                                         Seconds(m_random->GetValue ()),
+                                       &NdnConsumer::SendPacket, this);
+}
+
+void
+NdnConsumerCbr::SetRandomize (const std::string &value)
+{
+  if (m_random)
+    delete m_random;
+
+  else if (value == "uniform")
+    {
+      m_random = new UniformVariable (0.0, 2 * 1.0 / m_frequency);
+    }
+  else if (value == "exponential")
+    {
+      m_random = new ExponentialVariable (1.0 / m_frequency, 50 * 1.0 / m_frequency);
+    }
+  else
+    m_random = 0;
+
+  m_randomType = value;  
+}
+
+std::string
+NdnConsumerCbr::GetRandomize () const
+{
+  return m_randomType;
+}
+
+
+///////////////////////////////////////////////////
+//          Process incoming packets             //
+///////////////////////////////////////////////////
+
+// void
+// NdnConsumer::OnContentObject (const Ptr<const NdnContentObjectHeader> &contentObject,
+//                                const Ptr<const Packet> &payload)
+// {
+//   NdnConsumer::OnContentObject (contentObject, payload); // tracing inside
+// }
+
+// void
+// NdnConsumer::OnNack (const Ptr<const NdnInterestHeader> &interest)
+// {
+//   NdnConsumer::OnNack (interest); // tracing inside
+// }
+
+} // namespace ns3