Another set of refactoring
diff --git a/model/cs/content-store-impl.cc b/model/cs/content-store-impl.cc
new file mode 100644
index 0000000..fe6346b
--- /dev/null
+++ b/model/cs/content-store-impl.cc
@@ -0,0 +1,188 @@
+/* -*-  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: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#include "content-store-impl.h"
+#include "ns3/log.h"
+#include "ns3/uinteger.h"
+#include "ns3/string.h"
+
+#include "../../utils/random-policy.h"
+#include "../../utils/lru-policy.h"
+#include "../../utils/fifo-policy.h"
+
+NS_LOG_COMPONENT_DEFINE ("ndn.cs.ContentStoreImpl");
+
+#define NS_OBJECT_ENSURE_REGISTERED_TEMPL(type, templ)  \
+  static struct X ## type ## templ ## RegistrationClass \
+  {                                                     \
+    X ## type ## templ ## RegistrationClass () {        \
+      ns3::TypeId tid = type<templ>::GetTypeId ();      \
+      tid.GetParent ();                                 \
+    }                                                   \
+  } x_ ## type ## templ ## RegistrationVariable
+
+namespace ns3 {
+namespace ndn {
+
+using namespace ndnSIM;
+
+namespace cs {
+
+
+template<>
+TypeId
+ContentStoreImpl< lru_policy_traits >::GetTypeId ()
+{
+  static TypeId tid = TypeId ("ns3::ndn::cs::Lru")
+    .SetGroupName ("Ndn")
+    .SetParent<ContentStore> ()
+    .AddConstructor< ContentStoreImpl< lru_policy_traits > > ()
+    .AddAttribute ("MaxSize",
+                   "Set maximum number of entries in ContentStore. If 0, limit is not enforced",
+                   StringValue ("100"),
+                   MakeUintegerAccessor (&ContentStoreImpl< lru_policy_traits >::GetMaxSize,
+                                         &ContentStoreImpl< lru_policy_traits >::SetMaxSize),
+                   MakeUintegerChecker<uint32_t> ())
+    ;
+
+  return tid;
+}
+
+template<>
+TypeId
+ContentStoreImpl< random_policy_traits >::GetTypeId ()
+{
+  static TypeId tid = TypeId ("ns3::ndn::cs::Random")
+    .SetGroupName ("Ndn")
+    .SetParent<ContentStore> ()
+    .AddConstructor< ContentStoreImpl< random_policy_traits > > ()
+    .AddAttribute ("MaxSize",
+                   "Set maximum number of entries in ContentStore. If 0, limit is not enforced",
+                   StringValue ("100"),
+                   MakeUintegerAccessor (&ContentStoreImpl< random_policy_traits >::GetMaxSize,
+                                         &ContentStoreImpl< random_policy_traits >::SetMaxSize),
+                   MakeUintegerChecker<uint32_t> ())
+    ;
+
+  return tid;
+}
+
+template<>
+TypeId
+ContentStoreImpl< fifo_policy_traits >::GetTypeId ()
+{
+  static TypeId tid = TypeId ("ns3::ndn::cs::Fifo")
+    .SetGroupName ("Ndn")
+    .SetParent<ContentStore> ()
+    .AddConstructor< ContentStoreImpl< fifo_policy_traits > > ()
+    .AddAttribute ("MaxSize",
+                   "Set maximum number of entries in ContentStore. If 0, limit is not enforced",
+                   StringValue ("100"),
+                   MakeUintegerAccessor (&ContentStoreImpl< fifo_policy_traits >::GetMaxSize,
+                                         &ContentStoreImpl< fifo_policy_traits >::SetMaxSize),
+                   MakeUintegerChecker<uint32_t> ())
+    ;
+
+  return tid;
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////
+
+template<class Policy>
+boost::tuple<Ptr<Packet>, Ptr<const ContentObjectHeader>, Ptr<const Packet> >
+ContentStoreImpl<Policy>::Lookup (Ptr<const InterestHeader> interest)
+{
+  // NS_LOG_FUNCTION (this << interest->GetName ());
+
+  /// @todo Change to search with predicate
+  typename super::const_iterator node = this->deepest_prefix_match (interest->GetName ());
+  
+  if (node != this->end ())
+    {
+      this->m_cacheHitsTrace (interest, node->payload ()->GetHeader ());
+
+      // NS_LOG_DEBUG ("cache hit with " << node->payload ()->GetHeader ()->GetName ());
+      return boost::make_tuple (node->payload ()->GetFullyFormedNdnPacket (),
+                                node->payload ()->GetHeader (),
+                                node->payload ()->GetPacket ());
+    }
+  else
+    {
+      // NS_LOG_DEBUG ("cache miss for " << interest->GetName ());
+      this->m_cacheMissesTrace (interest);
+      return boost::tuple<Ptr<Packet>, Ptr<ContentObjectHeader>, Ptr<Packet> > (0, 0, 0);
+    }
+}   
+    
+template<class Policy>
+bool 
+ContentStoreImpl<Policy>::Add (Ptr<const ContentObjectHeader> header, Ptr<const Packet> packet)
+{
+  // NS_LOG_FUNCTION (this << header->GetName ());
+
+  return
+    this->insert (header->GetName (), Create<Entry> (header, packet))
+    .second;
+}
+    
+template<class Policy>
+void 
+ContentStoreImpl<Policy>::Print (std::ostream &os) const
+{
+  for (typename super::policy_container::const_iterator item = this->getPolicy ().begin ();
+       item != this->getPolicy ().end ();
+       item++)
+  // BOOST_FOREACH (const typename super::parent_trie &item, this->getPolicy ())
+    {
+      os << item->payload ()->GetName () << std::endl;
+    }
+}
+
+template<class Policy>
+void 
+ContentStoreImpl<Policy>::SetMaxSize (uint32_t maxSize)
+{
+  this->getPolicy ().set_max_size (maxSize);
+}
+
+template<class Policy>
+uint32_t
+ContentStoreImpl<Policy>::GetMaxSize () const
+{
+  return this->getPolicy ().get_max_size ();
+}
+
+////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////
+
+// explicit instantiation and registering
+template class ContentStoreImpl<lru_policy_traits>;
+template class ContentStoreImpl<random_policy_traits>;
+template class ContentStoreImpl<fifo_policy_traits>;
+
+NS_OBJECT_ENSURE_REGISTERED_TEMPL(ContentStoreImpl, lru_policy_traits);
+NS_OBJECT_ENSURE_REGISTERED_TEMPL(ContentStoreImpl, random_policy_traits);
+NS_OBJECT_ENSURE_REGISTERED_TEMPL(ContentStoreImpl, fifo_policy_traits);
+
+
+} // namespace cs
+} // namespace ndn
+} // namespace ns3