First step of refactoring code (ccnx prefix => ndn prefix)
diff --git a/model/ndn-name-components.cc b/model/ndn-name-components.cc
new file mode 100644
index 0000000..96d40ec
--- /dev/null
+++ b/model/ndn-name-components.cc
@@ -0,0 +1,152 @@
+/* -*- 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>
+ * Ilya Moiseenko <iliamo@cs.ucla.edu>
+ */
+
+#include "ndn-name-components.h"
+#include <boost/foreach.hpp>
+#include "ns3/log.h"
+
+#include <iostream>
+
+using namespace std;
+
+NS_LOG_COMPONENT_DEFINE ("NdnNameComponents");
+
+namespace ns3 {
+
+ATTRIBUTE_HELPER_CPP (NdnNameComponents);
+
+NdnNameComponents::NdnNameComponents (/* root */)
+{
+}
+
+NdnNameComponents::NdnNameComponents (const std::list<boost::reference_wrapper<const std::string> > &components)
+{
+ BOOST_FOREACH (const boost::reference_wrapper<const std::string> &component, components)
+ {
+ Add (component.get ());
+ }
+}
+
+NdnNameComponents::NdnNameComponents (const std::string &prefix)
+{
+ istringstream is (prefix);
+ is >> *this;
+}
+
+NdnNameComponents::NdnNameComponents (const char *prefix)
+{
+ NS_ASSERT (prefix != 0);
+
+ istringstream is (prefix);
+ is >> *this;
+}
+
+const std::list<std::string> &
+NdnNameComponents::GetComponents () const
+{
+ return m_prefix;
+}
+
+std::string
+NdnNameComponents::GetLastComponent () const
+{
+ if (m_prefix.size () == 0)
+ {
+ return "";
+ }
+
+ return m_prefix.back ();
+}
+
+std::list<boost::reference_wrapper<const std::string> >
+NdnNameComponents::GetSubComponents (size_t num) const
+{
+ NS_ASSERT_MSG (0<=num && num<=m_prefix.size (), "Invalid number of subcomponents requested");
+
+ std::list<boost::reference_wrapper<const std::string> > subComponents;
+ std::list<std::string>::const_iterator component = m_prefix.begin();
+ for (size_t i=0; i<num; i++, component++)
+ {
+ subComponents.push_back (boost::ref (*component));
+ }
+
+ return subComponents;
+}
+
+NdnNameComponents
+NdnNameComponents::cut (size_t minusComponents) const
+{
+ NdnNameComponents retval;
+ std::list<std::string>::const_iterator component = m_prefix.begin ();
+ for (uint32_t i = 0; i < m_prefix.size () - minusComponents; i++, component++)
+ {
+ retval.Add (*component);
+ }
+
+ return retval;
+}
+
+void
+NdnNameComponents::Print (std::ostream &os) const
+{
+ for (const_iterator i=m_prefix.begin(); i!=m_prefix.end(); i++)
+ {
+ os << "/" << *i;
+ }
+ if (m_prefix.size ()==0) os << "/";
+}
+
+std::ostream &
+operator << (std::ostream &os, const NdnNameComponents &components)
+{
+ components.Print (os);
+ return os;
+}
+
+std::istream &
+operator >> (std::istream &is, NdnNameComponents &components)
+{
+ istream_iterator<char> eos; // end of stream
+
+ std::string component = "";
+ istream_iterator<char> it (is);
+ for (; it != eos; it++)
+ {
+ if (*it == '/')
+ {
+ if (component != "")
+ components.Add (component);
+ component = "";
+ }
+ else
+ component.push_back (*it);
+ }
+ if (component != "")
+ components.Add (component);
+
+ is.clear ();
+ // NS_LOG_ERROR (components << ", bad: " << is.bad () <<", fail: " << is.fail ());
+
+ return is;
+}
+
+}
+