model: Another major change: switching to NDN.cxx API for ndn::Name
NDN.cxx code is almost exactly the same, with minor NS-3 specific customizations
Refs #1011 (http://redmine.named-data.net/issues/1011)
diff --git a/ndn.cxx/exclude.cc b/ndn.cxx/exclude.cc
new file mode 100644
index 0000000..16c78bc
--- /dev/null
+++ b/ndn.cxx/exclude.cc
@@ -0,0 +1,166 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013, Regents of the University of California
+ * Alexander Afanasyev
+ *
+ * BSD license, See the LICENSE file for more information
+ *
+ * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#include "exclude.h"
+
+#include "detail/error.h"
+
+NDN_NAMESPACE_BEGIN
+
+Exclude::Exclude ()
+{
+}
+
+// example: ANY /b /d ANY /f
+//
+// ordered in map as:
+//
+// /f (false); /d (true); /b (false); / (true)
+//
+// lower_bound (/) -> / (true) <-- excluded (equal)
+// lower_bound (/a) -> / (true) <-- excluded (any)
+// lower_bound (/b) -> /b (false) <--- excluded (equal)
+// lower_bound (/c) -> /b (false) <--- not excluded (not equal and no ANY)
+// lower_bound (/d) -> /d (true) <- excluded
+// lower_bound (/e) -> /d (true) <- excluded
+bool
+Exclude::isExcluded (const name::Component &comp) const
+{
+ const_iterator lowerBound = m_exclude.lower_bound (comp);
+ if (lowerBound == end ())
+ return false;
+
+ if (lowerBound->second)
+ return true;
+ else
+ return lowerBound->first == comp;
+
+ return false;
+}
+
+Exclude &
+Exclude::excludeOne (const name::Component &comp)
+{
+ if (!isExcluded (comp))
+ {
+ m_exclude.insert (std::make_pair (comp, false));
+ }
+ return *this;
+}
+
+
+// example: ANY /b0 /d0 ANY /f0
+//
+// ordered in map as:
+//
+// /f0 (false); /d0 (true); /b0 (false); / (true)
+//
+// lower_bound (/) -> / (true) <-- excluded (equal)
+// lower_bound (/a0) -> / (true) <-- excluded (any)
+// lower_bound (/b0) -> /b0 (false) <--- excluded (equal)
+// lower_bound (/c0) -> /b0 (false) <--- not excluded (not equal and no ANY)
+// lower_bound (/d0) -> /d0 (true) <- excluded
+// lower_bound (/e0) -> /d0 (true) <- excluded
+
+
+// examples with desired outcomes
+// excludeRange (/, /f0) -> ANY /f0
+// /f0 (false); / (true)
+// excludeRange (/, /f1) -> ANY /f1
+// /f1 (false); / (true)
+// excludeRange (/a0, /e0) -> ANY /f0
+// /f0 (false); / (true)
+// excludeRange (/a0, /e0) -> ANY /f0
+// /f0 (false); / (true)
+
+// excludeRange (/b1, /c0) -> ANY /b0 /b1 ANY /c0 /d0 ANY /f0
+// /f0 (false); /d0 (true); /c0 (false); /b1 (true); /b0 (false); / (true)
+
+Exclude &
+Exclude::excludeRange (const name::Component &from, const name::Component &to)
+{
+ if (from >= to)
+ {
+ BOOST_THROW_EXCEPTION (error::Exclude ()
+ << error::msg ("Invalid exclude range (for single name exclude use Exclude::excludeOne)")
+ << error::msg (from.toUri ())
+ << error::msg (to.toUri ()));
+ }
+
+ iterator newFrom = m_exclude.lower_bound (from);
+ if (newFrom == end () || !newFrom->second /*without ANY*/)
+ {
+ std::pair<iterator, bool> fromResult = m_exclude.insert (std::make_pair (from, true));
+ newFrom = fromResult.first;
+ if (!fromResult.second)
+ {
+ // this means that the lower bound is equal to the item itself. So, just update ANY flag
+ newFrom->second = true;
+ }
+ }
+ // else
+ // nothing special if start of the range already exists with ANY flag set
+
+ iterator newTo = m_exclude.lower_bound (to); // !newTo cannot be end ()
+ if (newTo == newFrom || !newTo->second)
+ {
+ std::pair<iterator, bool> toResult = m_exclude.insert (std::make_pair (to, false));
+ newTo = toResult.first;
+ ++ newTo;
+ }
+ else
+ {
+ // nothing to do really
+ }
+
+ m_exclude.erase (newTo, newFrom); // remove any intermediate node, since all of the are excluded
+
+ return *this;
+}
+
+Exclude &
+Exclude::excludeAfter (const name::Component &from)
+{
+ iterator newFrom = m_exclude.lower_bound (from);
+ if (newFrom == end () || !newFrom->second /*without ANY*/)
+ {
+ std::pair<iterator, bool> fromResult = m_exclude.insert (std::make_pair (from, true));
+ newFrom = fromResult.first;
+ if (!fromResult.second)
+ {
+ // this means that the lower bound is equal to the item itself. So, just update ANY flag
+ newFrom->second = true;
+ }
+ }
+ // else
+ // nothing special if start of the range already exists with ANY flag set
+
+ if (newFrom != m_exclude.begin ())
+ {
+ m_exclude.erase (m_exclude.begin (), newFrom); // remove any intermediate node, since all of the are excluded
+ }
+
+ return *this;
+}
+
+
+std::ostream&
+operator << (std::ostream &os, const Exclude &exclude)
+{
+ for (Exclude::const_reverse_iterator i = exclude.rbegin (); i != exclude.rend (); i++)
+ {
+ os << i->first.toUri () << " ";
+ if (i->second)
+ os << "----> ";
+ }
+ return os;
+}
+
+NDN_NAMESPACE_END