DER encoding: Add stub for SimpleVisitor implementation.
diff --git a/ndn-cpp/encoding/der/visitor/simple-visitor.cpp b/ndn-cpp/encoding/der/visitor/simple-visitor.cpp
new file mode 100644
index 0000000..f71ad56
--- /dev/null
+++ b/ndn-cpp/encoding/der/visitor/simple-visitor.cpp
@@ -0,0 +1,101 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/**
+ * Copyright (C) 2013 Regents of the University of California.
+ * @author: Yingdi Yu <yingdi@cs.ucla.edu>
+ * @author: Jeff Thompson <jefft0@remap.ucla.edu>
+ * See COPYING for copyright and distribution information.
+ */
+
+#include "simple-visitor.hpp"
+#include "../der.hpp"
+#include <ndn-cpp/encoding/oid.hpp>
+
+using namespace std;
+
+namespace ndn {
+
+namespace der
+{
+
+Any
+SimpleVisitor::visit(DerBool& derBool)
+{
+ bool result = true;
+
+ if(0 == derBool.getPayload()[0])
+ result = false;
+
+ return Any(result);
+}
+
+#if 0
+Any
+SimpleVisitor::visit(DerInteger& derInteger)
+{
+ return Any(derInteger.getPayload());
+}
+
+Any
+SimpleVisitor::visit(DerPrintableString& derPStr)
+{
+ return Any(string(derPStr.getPayload().buf(), derPStr.getPayload().size()));
+}
+
+Any
+SimpleVisitor::visit(DerBitString& derBStr)
+{
+ return Any(derBStr.getPayload());
+}
+
+Any
+SimpleVisitor::visit(DerNull& derNull)
+{
+ return Any();
+}
+
+Any
+SimpleVisitor::visit(DerOctetString& derOStr)
+{
+ Ptr<Blob> result = Ptr<Blob>(new Blob(derOStr.getPayload().buf(), derOStr.getPayload().size()));
+ return Any(result);
+}
+
+Any
+SimpleVisitor::visit(DerOid& derOid)
+{
+ vector<int> intList;
+ int offset = 0;
+
+ Blob & blob = derOid.getPayload();
+
+ int first = blob[offset];
+
+ intList.push_back(first / 40);
+ intList.push_back(first % 40);
+
+ offset++;
+
+ while(offset < blob.size()){
+ intList.push_back(derOid.decode128(offset));
+ }
+
+ return Any(OID(intList));
+}
+
+Any
+SimpleVisitor::visit(DerSequence& derSeq)
+{
+ return Any();
+}
+
+Any
+SimpleVisitor::visit(DerGtime& derGtime)
+{
+ string str(derGtime.getPayload().buf() , derGtime.getPayload().size());
+ return Any(boost::posix_time::from_iso_string(str.substr(0, 8) + "T" + str.substr(8, 6)));
+}
+#endif
+
+} // der
+
+}
diff --git a/ndn-cpp/encoding/der/visitor/simple-visitor.hpp b/ndn-cpp/encoding/der/visitor/simple-visitor.hpp
index 4ec3a8c..d54c499 100644
--- a/ndn-cpp/encoding/der/visitor/simple-visitor.hpp
+++ b/ndn-cpp/encoding/der/visitor/simple-visitor.hpp
@@ -15,7 +15,7 @@
namespace der {
-class NoArgumentsVisitor : public NoArgumentsVisitor
+class SimpleVisitor : public NoArgumentsVisitor
{
public:
virtual Any visit(DerBool& ) = 0;