model: Returning back support for CCNb wire format
Refs #1008 (http://redmine.named-data.net/)
diff --git a/model/wire/ccnb/ccnb-parser/common.h b/model/wire/ccnb/ccnb-parser/common.h
new file mode 100644
index 0000000..aa3f68a
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/common.h
@@ -0,0 +1,189 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_COMMON_H_
+#define _CCNB_PARSER_COMMON_H_
+
+#include "ns3/ndn-common.h"
+
+#ifndef NDN_NAMESPACE_BEGIN
+#error "dafaq"
+#endif
+
+NDN_NAMESPACE_BEGIN;
+
+namespace wire {
+
+/**
+ * \ingroup ndn
+ * \defgroup ndn-ccnb CCNB decoding routines
+ */
+/**
+ * \ingroup ndn-ccnb
+ * \brief Namespace for ccnb parer
+ */
+namespace CcnbParser {
+
+// forward declarations
+class Block;
+class Blob;
+class Udata;
+class Tag;
+class Attr;
+class Dtag;
+class Dattr;
+class Ext;
+
+
+/**
+ * \brief Exception thrown if there is a parsing error
+ *
+ * \todo inherit this class from some exception class and provide meaningful error messages
+ */
+class CcnbDecodingException {};
+
+/**
+ * \brief Type tag for a ccnb start marker.
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/DTAG.html
+ */
+enum ccn_tt {
+ CCN_EXT, /**< starts composite extension - numval is subtype */
+ CCN_TAG, /**< starts composite - numval is tagnamelen-1 */
+ CCN_DTAG, /**< starts composite - numval is tagdict index (enum ccn_dtag) */
+ CCN_ATTR, /**< attribute - numval is attrnamelen-1, value follows */
+ CCN_DATTR, /**< attribute numval is attrdict index */
+ CCN_BLOB, /**< opaque binary data - numval is byte count */
+ CCN_UDATA, /**< UTF-8 encoded character data - numval is byte count */
+ CCN_NO_TOKEN /**< should not occur in encoding */
+};
+
+/** \brief CCN_CLOSE terminates composites */
+enum {CCN_CLOSE = 0};
+
+/**
+ * \brief DTAG identifies ccnb-encoded elements.
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/DTAG.html
+ */
+enum ccn_dtag {
+ CCN_DTAG_Any = 13,
+ CCN_DTAG_Name = 14,
+ CCN_DTAG_Component = 15,
+ CCN_DTAG_Certificate = 16,
+ CCN_DTAG_Collection = 17,
+ CCN_DTAG_CompleteName = 18,
+ CCN_DTAG_Content = 19,
+ CCN_DTAG_SignedInfo = 20,
+ CCN_DTAG_ContentDigest = 21,
+ CCN_DTAG_ContentHash = 22,
+ CCN_DTAG_Count = 24,
+ CCN_DTAG_Header = 25,
+ CCN_DTAG_Interest = 26, /* 20090915 */
+ CCN_DTAG_Key = 27,
+ CCN_DTAG_KeyLocator = 28,
+ CCN_DTAG_KeyName = 29,
+ CCN_DTAG_Length = 30,
+ CCN_DTAG_Link = 31,
+ CCN_DTAG_LinkAuthenticator = 32,
+ CCN_DTAG_NameComponentCount = 33, /* DeprecatedInInterest */
+ CCN_DTAG_RootDigest = 36,
+ CCN_DTAG_Signature = 37,
+ CCN_DTAG_Start = 38,
+ CCN_DTAG_Timestamp = 39,
+ CCN_DTAG_Type = 40,
+ CCN_DTAG_Nonce = 41,
+ CCN_DTAG_Scope = 42,
+ CCN_DTAG_Exclude = 43,
+ CCN_DTAG_Bloom = 44,
+ CCN_DTAG_BloomSeed = 45,
+ CCN_DTAG_AnswerOriginKind = 47,
+ CCN_DTAG_InterestLifetime = 48,
+ CCN_DTAG_Witness = 53,
+ CCN_DTAG_SignatureBits = 54,
+ CCN_DTAG_DigestAlgorithm = 55,
+ CCN_DTAG_BlockSize = 56,
+ CCN_DTAG_FreshnessSeconds = 58,
+ CCN_DTAG_FinalBlockID = 59,
+ CCN_DTAG_PublisherPublicKeyDigest = 60,
+ CCN_DTAG_PublisherCertificateDigest = 61,
+ CCN_DTAG_PublisherIssuerKeyDigest = 62,
+ CCN_DTAG_PublisherIssuerCertificateDigest = 63,
+ CCN_DTAG_ContentObject = 64, /* 20090915 */
+ CCN_DTAG_WrappedKey = 65,
+ CCN_DTAG_WrappingKeyIdentifier = 66,
+ CCN_DTAG_WrapAlgorithm = 67,
+ CCN_DTAG_KeyAlgorithm = 68,
+ CCN_DTAG_Label = 69,
+ CCN_DTAG_EncryptedKey = 70,
+ CCN_DTAG_EncryptedNonceKey = 71,
+ CCN_DTAG_WrappingKeyName = 72,
+ CCN_DTAG_Action = 73,
+ CCN_DTAG_FaceID = 74,
+ CCN_DTAG_IPProto = 75,
+ CCN_DTAG_Host = 76,
+ CCN_DTAG_Port = 77,
+ CCN_DTAG_MulticastInterface = 78,
+ CCN_DTAG_ForwardingFlags = 79,
+ CCN_DTAG_FaceInstance = 80,
+ CCN_DTAG_ForwardingEntry = 81,
+ CCN_DTAG_MulticastTTL = 82,
+ CCN_DTAG_MinSuffixComponents = 83,
+ CCN_DTAG_MaxSuffixComponents = 84,
+ CCN_DTAG_ChildSelector = 85,
+ CCN_DTAG_RepositoryInfo = 86,
+ CCN_DTAG_Version = 87,
+ CCN_DTAG_RepositoryVersion = 88,
+ CCN_DTAG_GlobalPrefix = 89,
+ CCN_DTAG_LocalName = 90,
+ CCN_DTAG_Policy = 91,
+ CCN_DTAG_Namespace = 92,
+ CCN_DTAG_GlobalPrefixName = 93,
+ CCN_DTAG_PolicyVersion = 94,
+ CCN_DTAG_KeyValueSet = 95,
+ CCN_DTAG_KeyValuePair = 96,
+ CCN_DTAG_IntegerValue = 97,
+ CCN_DTAG_DecimalValue = 98,
+ CCN_DTAG_StringValue = 99,
+ CCN_DTAG_BinaryValue = 100,
+ CCN_DTAG_NameValue = 101,
+ CCN_DTAG_Entry = 102,
+ CCN_DTAG_ACL = 103,
+ CCN_DTAG_ParameterizedName = 104,
+ CCN_DTAG_Prefix = 105,
+ CCN_DTAG_Suffix = 106,
+ CCN_DTAG_Root = 107,
+ CCN_DTAG_ProfileName = 108,
+ CCN_DTAG_Parameters = 109,
+ CCN_DTAG_InfoString = 110,
+ CCN_DTAG_StatusResponse = 112,
+ CCN_DTAG_StatusCode = 113,
+ CCN_DTAG_StatusText = 114,
+ CCN_DTAG_Nack = 200,
+ CCN_DTAG_SequenceNumber = 256,
+ CCN_DTAG_CCNProtocolDataUnit = 17702112
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_COMMON_H_
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/attr.cc b/model/wire/ccnb/ccnb-parser/syntax-tree/attr.cc
new file mode 100644
index 0000000..f661186
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/attr.cc
@@ -0,0 +1,48 @@
+/* -*- 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 "attr.h"
+#include "../common.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+// length length in octets of UTF-8 encoding of tag name - 1 (minimum tag name length is 1)
+Attr::Attr (Buffer::Iterator &start, uint32_t length)
+{
+ m_attr.reserve (length+2); // extra byte for potential \0 at the end
+ uint32_t i = 0;
+ for (; !start.IsEnd () && i < (length+1); i++)
+ {
+ m_attr.push_back (start.ReadU8 ());
+ }
+ if (i < (length+1) && start.IsEnd ())
+ throw CcnbDecodingException ();
+ m_value = DynamicCast<Udata> (Block::ParseBlock (start));
+ if (m_value == 0)
+ throw CcnbDecodingException (); // "ATTR must be followed by UDATA field"
+}
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/attr.h b/model/wire/ccnb/ccnb-parser/syntax-tree/attr.h
new file mode 100644
index 0000000..37882ad
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/attr.h
@@ -0,0 +1,64 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_ATTR_H_
+#define _CCNB_PARSER_ATTR_H_
+
+#include "base-attr.h"
+#include <string>
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Class to represent ATTR ccnb-encoded node
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+class Attr : public BaseAttr
+{
+public:
+ /**
+ * \brief Constructor that actually parsed ccnb-encoded ATTR block
+ *
+ * \param start buffer iterator pointing to the first byte of ATTR block name
+ * \param length length of ATTR name (extracted from the value field)
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+ Attr (Buffer::Iterator &start, uint32_t length);
+
+ virtual void accept( VoidNoArguVisitor &v ) { v.visit( *this ); }
+ virtual void accept( VoidVisitor &v, boost::any param ) { v.visit( *this, param ); }
+ virtual boost::any accept( NoArguVisitor &v ) { return v.visit( *this ); }
+ virtual boost::any accept( Visitor &v, boost::any param ) { return v.visit( *this, param ); }
+
+ std::string m_attr; ///< field holding name of the attribute
+};
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_ATTR_H_
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/base-attr.h b/model/wire/ccnb/ccnb-parser/syntax-tree/base-attr.h
new file mode 100644
index 0000000..c2b2627
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/base-attr.h
@@ -0,0 +1,49 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_BASE_ATTR_H_
+#define _CCNB_PARSER_BASE_ATTR_H_
+
+#include "udata.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Virtual base class providing a common storage for ATTR
+ * and DATTR ccnb-encoded blocks
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+class BaseAttr : public Block
+{
+public:
+ Ptr<Udata> m_value; ///< \brief Value of the attribute
+};
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_BASE_ATTR_H_
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/base-tag.h b/model/wire/ccnb/ccnb-parser/syntax-tree/base-tag.h
new file mode 100644
index 0000000..1449d9f
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/base-tag.h
@@ -0,0 +1,58 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_BASE_TAG_H_
+#define _CCNB_PARSER_BASE_TAG_H_
+
+#include "block.h"
+#include <list>
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Virtual base class providing a common storage for TAG
+ * and DTAG ccnb-encoded blocks
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+class BaseTag : public Block
+{
+public:
+ std::list<Ptr<Block> > m_attrs; ///< \brief List of attributes, associated with this tag
+ std::list<Ptr<Block> > m_nestedTags; ///< \brief List of nested tags
+
+protected:
+ /**
+ * \brief Default constructor
+ */
+ BaseTag() { }
+};
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_BASE_TAG_H_
+
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/blob.cc b/model/wire/ccnb/ccnb-parser/syntax-tree/blob.cc
new file mode 100644
index 0000000..6c2ab2e
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/blob.cc
@@ -0,0 +1,53 @@
+/* -*- 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 "blob.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+Blob::Blob (Buffer::Iterator &start, uint32_t length)
+{
+ m_blobSize = length;
+ m_blob = new char[length];
+ if (m_blob == 0 )
+ throw CcnbDecodingException (); // memory problem
+
+ uint32_t i = 0;
+ for (; !start.IsEnd () && i < length; i++)
+ {
+ m_blob[i] = start.ReadU8 ();
+ }
+ if (i < length && start.IsEnd ())
+ throw CcnbDecodingException ();
+ // Block::counter += length;
+}
+
+Blob::~Blob ()
+{
+ delete [] m_blob;
+}
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/blob.h b/model/wire/ccnb/ccnb-parser/syntax-tree/blob.h
new file mode 100644
index 0000000..2b480ca
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/blob.h
@@ -0,0 +1,65 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_BLOB_H_
+#define _CCNB_PARSER_BLOB_H_
+
+#include "block.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Class to represent BLOB ccnb-encoded node
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+class Blob : public Block
+{
+public:
+ /**
+ * \brief Constructor that actually parsed ccnb-encoded BLOB block
+ *
+ * \param start buffer iterator pointing to the first byte of BLOB data in ccnb-encoded block
+ * \param length length of data in BLOB block (extracted from the value field)
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+ Blob (Buffer::Iterator &start, uint32_t length);
+ ~Blob ();
+
+ virtual void accept( VoidNoArguVisitor &v ) { v.visit( *this ); }
+ virtual void accept( VoidVisitor &v, boost::any param ) { v.visit( *this, param ); }
+ virtual boost::any accept( NoArguVisitor &v ) { return v.visit( *this ); }
+ virtual boost::any accept( Visitor &v, boost::any param ) { return v.visit( *this, param ); }
+
+ char* m_blob; ///< \brief field holding a parsed BLOB value of the block
+ uint32_t m_blobSize; ///< @brief field representing size of the BLOB field stored
+};
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_BLOB_H_
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/block.cc b/model/wire/ccnb/ccnb-parser/syntax-tree/block.cc
new file mode 100644
index 0000000..06c8e2c
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/block.cc
@@ -0,0 +1,101 @@
+/* -*- 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 "block.h"
+
+#include "blob.h"
+#include "udata.h"
+#include "tag.h"
+#include "dtag.h"
+#include "attr.h"
+#include "dattr.h"
+#include "ext.h"
+
+#include "ns3/log.h"
+
+NS_LOG_COMPONENT_DEFINE ("ndn.CcnbParser.Block");
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/// @cond include_hidden
+const uint8_t CCN_TT_BITS = 3;
+const uint8_t CCN_TT_MASK = ((1 << CCN_TT_BITS) - 1);
+const uint8_t CCN_MAX_TINY= ((1 << (7-CCN_TT_BITS)) - 1);
+const uint8_t CCN_TT_HBIT = ((uint8_t)(1 << 7));
+/// @endcond
+
+// int Block::counter = 0;
+
+Ptr<Block> Block::ParseBlock (Buffer::Iterator &start)
+{
+ // std::cout << "<< pos: " << counter << "\n";
+ uint32_t value = 0;
+
+ // We will have problems if length field is more than 32 bits. Though it's really impossible
+ uint8_t byte = 0;
+ while (!start.IsEnd() && !(byte & CCN_TT_HBIT))
+ {
+ value <<= 8;
+ value += byte;
+ byte = start.ReadU8 ();
+ // Block::counter ++;
+ }
+ if (start.IsEnd())
+ CcnbDecodingException ();
+
+ value <<= 4;
+ value += ( (byte&(~CCN_TT_HBIT)) >> 3);
+
+ /**
+ * Huh. After fighting with NS-3, it became apparent that Create<T>(...) construct
+ * doesn't work with references. Just simply doesn't work. wtf?
+ */
+ switch (byte & CCN_TT_MASK)
+ {
+ case CCN_BLOB:
+ return Ptr<Blob> (new Blob(start, value), false);
+ case CCN_UDATA:
+ return Ptr<Udata> (new Udata(start, value), false);
+ case CCN_TAG:
+ return Ptr<Tag> (new Tag(start, value), false);
+ case CCN_ATTR:
+ return Ptr<Attr> (new Attr(start, value), false);
+ case CCN_DTAG:
+ return Ptr<Dtag> (new Dtag(start, value), false);
+ case CCN_DATTR:
+ return Ptr<Dattr> (new Dattr(start, value), false);
+ case CCN_EXT:
+ return Ptr<Ext> (new Ext(start, value), false);
+ default:
+ throw CcnbDecodingException ();
+ }
+}
+
+Block::~Block ()
+{
+}
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/block.h b/model/wire/ccnb/ccnb-parser/syntax-tree/block.h
new file mode 100644
index 0000000..caf227f
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/block.h
@@ -0,0 +1,89 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_BLOCK_H_
+#define _CCNB_PARSER_BLOCK_H_
+
+#include "ns3/simple-ref-count.h"
+#include "ns3/buffer.h"
+#include "ns3/ptr.h"
+
+// visitors
+#include "../visitors/void-no-argu-visitor.h"
+#include "../visitors/void-visitor.h"
+#include "../visitors/no-argu-visitor.h"
+#include "../visitors/visitor.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Base class for ccnb-encoded node
+ *
+ * This class provides a static method to create a new block
+ * (recursively) from the stream
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+class Block : public SimpleRefCount<Block>
+{
+public:
+ // static int counter;
+ /**
+ * \brief Parsing stream (recursively) and creating a parsed BLOCK
+ * object
+ *
+ * \param start buffer iterator pointing to the start position for parsing
+ * \returns parsed ccnb-encoded block, that could contain more block inside
+ */
+ static Ptr<Block>
+ ParseBlock (Buffer::Iterator &start);
+
+ virtual ~Block ();
+
+ virtual void accept( VoidNoArguVisitor &v ) = 0; ///< @brief Accept visitor void(*)()
+ virtual void accept( VoidVisitor &v, boost::any param ) = 0; ///< @brief Accept visitor void(*)(boost::any)
+ virtual boost::any accept( NoArguVisitor &v ) = 0; ///< @brief Accept visitor boost::any(*)()
+ virtual boost::any accept( Visitor &v, boost::any param ) = 0; ///< @brief Accept visitor boost::any(*)(boost::any)
+};
+
+/**
+ * @brief Necessary until Buffer::Iterator gets PeekU8 call
+ * @param i buffer iterator
+ * @return peeked uint8_t value
+ */
+inline
+uint8_t
+BufferIteratorPeekU8 (Buffer::Iterator &i)
+{
+ uint8_t ret = i.ReadU8 ();
+ i.Prev ();
+ return ret;
+}
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_BLOCK_H_
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/dattr.cc b/model/wire/ccnb/ccnb-parser/syntax-tree/dattr.cc
new file mode 100644
index 0000000..a37db84
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/dattr.cc
@@ -0,0 +1,40 @@
+/* -*- 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 "dattr.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+// dictionary attributes are not used (yet?) in CCNx
+Dattr::Dattr (Buffer::Iterator &start, uint32_t dattr)
+{
+ m_dattr = dattr;
+ m_value = DynamicCast<Udata> (Block::ParseBlock (start));
+ if (m_value == 0)
+ throw CcnbDecodingException (); // "ATTR must be followed by UDATA field"
+}
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/dattr.h b/model/wire/ccnb/ccnb-parser/syntax-tree/dattr.h
new file mode 100644
index 0000000..3728d6e
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/dattr.h
@@ -0,0 +1,63 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_DATTR_H_
+#define _CCNB_PARSER_DATTR_H_
+
+#include "base-attr.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Class to represent DATTR ccnb-encoded node
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+class Dattr : public BaseAttr
+{
+public:
+ /**
+ * \brief Constructor that actually parsed ccnb-encoded DATTR block
+ *
+ * \param start buffer iterator pointing to the first byte of attribute value (UDATA block)
+ * \param dattr dictionary code of DATTR (extracted from the value field)
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+ Dattr (Buffer::Iterator &start, uint32_t dattr);
+
+ virtual void accept( VoidNoArguVisitor &v ) { v.visit( *this ); }
+ virtual void accept( VoidVisitor &v, boost::any param ) { v.visit( *this, param ); }
+ virtual boost::any accept( NoArguVisitor &v ) { return v.visit( *this ); }
+ virtual boost::any accept( Visitor &v, boost::any param ) { return v.visit( *this, param ); }
+
+ uint32_t m_dattr; ///< \brief Dictionary code of DATTR
+};
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_DATTR_H_
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/dtag.cc b/model/wire/ccnb/ccnb-parser/syntax-tree/dtag.cc
new file mode 100644
index 0000000..b7af79b
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/dtag.cc
@@ -0,0 +1,91 @@
+/* -*- 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 "dtag.h"
+
+#include "base-attr.h"
+#include "base-tag.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+Dtag::Dtag (Buffer::Iterator &start, uint32_t dtag)
+{
+ m_dtag = dtag;
+ // std::cout << m_dtag << ", position: " << Block::counter << "\n";
+ /**
+ * Hack
+ *
+ * Stop processing after encountering "Content" dtag. Actual
+ * content (including virtual payload) will be stored in Packet
+ * buffer
+ */
+ if (dtag == CCN_DTAG_Content)
+ return; // hack #1. Do not process nesting block for <Content>
+
+ // parse attributes until first nested block reached
+ while (!start.IsEnd () && BufferIteratorPeekU8 (start)!=CCN_CLOSE)
+ {
+ Ptr<Block> block = Block::ParseBlock (start);
+ if (DynamicCast<BaseAttr> (block)!=0)
+ m_attrs.push_back (block);
+ else
+ {
+ m_nestedTags.push_back (block);
+ break;
+ }
+ }
+
+ // parse the rest of nested blocks
+ while (!start.IsEnd () && BufferIteratorPeekU8 (start)!=CCN_CLOSE)
+ {
+ // hack #2. Stop processing nested blocks if last block was <Content>
+ if (m_dtag == CCN_DTAG_ContentObject && // we are in <ContentObject>
+ DynamicCast<Dtag> (m_nestedTags.back())!=0 && // last block is DTAG
+ DynamicCast<Dtag> (m_nestedTags.back())->m_dtag == CCN_DTAG_Content)
+ {
+ return;
+ }
+
+ m_nestedTags.push_back (Block::ParseBlock (start));
+ }
+
+ // hack #3. Stop processing when last tag was <ContentObject>
+ if (m_dtag == CCN_DTAG_ContentObject && // we are in <ContentObject>
+ DynamicCast<Dtag> (m_nestedTags.back())!=0 && // last block is DTAG
+ DynamicCast<Dtag> (m_nestedTags.back())->m_dtag == CCN_DTAG_Content)
+ {
+ return;
+ }
+
+ if (start.IsEnd ())
+ throw CcnbDecodingException ();
+
+ start.ReadU8 (); // read CCN_CLOSE
+ // std::cout << "closer, position = " << Block::counter << "\n";
+ // Block::counter ++;
+}
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/dtag.h b/model/wire/ccnb/ccnb-parser/syntax-tree/dtag.h
new file mode 100644
index 0000000..0d00f50
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/dtag.h
@@ -0,0 +1,68 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_DTAG_H_
+#define _CCNB_PARSER_DTAG_H_
+
+#include "base-tag.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Class to represent DTAG ccnb-encoded node
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+class Dtag : public BaseTag
+{
+public:
+ /**
+ * \brief Constructor that actually parsed ccnb-encoded DTAG block
+ *
+ * \param start buffer iterator pointing to the first nesting block or closing tag
+ * \param dtag dictionary code of DTAG (extracted from the value field)
+ *
+ * DTAG parsing is slightly hacked to provide memory optimization
+ * for NS-3 simulations. Parsing will be stopped after encountering
+ * "Content" dtag. Actual content (including virtual payload) will
+ * be stored in Packet buffer
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+ Dtag (Buffer::Iterator &start, uint32_t dtag);
+
+ virtual void accept( VoidNoArguVisitor &v ) { v.visit( *this ); }
+ virtual void accept( VoidVisitor &v, boost::any param ) { v.visit( *this, param ); }
+ virtual boost::any accept( NoArguVisitor &v ) { return v.visit( *this ); }
+ virtual boost::any accept( Visitor &v, boost::any param ) { return v.visit( *this, param ); }
+
+ uint32_t m_dtag; ///< \brief Dictionary code for DTAG
+};
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_DTAG_H_
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/ext.cc b/model/wire/ccnb/ccnb-parser/syntax-tree/ext.cc
new file mode 100644
index 0000000..79ac738
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/ext.cc
@@ -0,0 +1,36 @@
+/* -*- 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 "ext.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+Ext::Ext (Buffer::Iterator &start, uint32_t extSubtype)
+{
+ m_extSubtype = extSubtype;
+}
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/ext.h b/model/wire/ccnb/ccnb-parser/syntax-tree/ext.h
new file mode 100644
index 0000000..532eb87
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/ext.h
@@ -0,0 +1,63 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_EXT_H_
+#define _CCNB_PARSER_EXT_H_
+
+#include "block.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Class to represent EXT ccnb-encoded node
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+class Ext : public Block
+{
+public:
+ /**
+ * \brief Constructor that actually parsed ccnb-encoded DTAG block
+ *
+ * \param start buffer iterator pointing to the next byte past EXT block
+ * \param extSubtype extension type (extracted from the value field)
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+ Ext (Buffer::Iterator &start, uint32_t extSubtype);
+
+ virtual void accept( VoidNoArguVisitor &v ) { v.visit( *this ); }
+ virtual void accept( VoidVisitor &v, boost::any param ) { v.visit( *this, param ); }
+ virtual boost::any accept( NoArguVisitor &v ) { return v.visit( *this ); }
+ virtual boost::any accept( Visitor &v, boost::any param ) { return v.visit( *this, param ); }
+
+ uint64_t m_extSubtype; ///< \brief Extension type
+};
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_EXT_H_
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/tag.cc b/model/wire/ccnb/ccnb-parser/syntax-tree/tag.cc
new file mode 100644
index 0000000..8cd7fd1
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/tag.cc
@@ -0,0 +1,70 @@
+/* -*- 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 "tag.h"
+
+#include "base-attr.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+Tag::Tag (Buffer::Iterator &start, uint32_t length)
+{
+ m_tag.reserve (length+2); // extra byte for potential \0 at the end
+ uint32_t i = 0;
+ for (; !start.IsEnd () && i < (length+1); i++)
+ {
+ m_tag.push_back (start.ReadU8 ());
+ }
+ if (i < (length+1) && start.IsEnd ())
+ throw CcnbDecodingException ();
+
+ // parse attributes until first nested block reached
+ while (!start.IsEnd () && BufferIteratorPeekU8 (start)!=CCN_CLOSE)
+ {
+ Ptr<Block> block = Block::ParseBlock (start);
+ if (DynamicCast<BaseAttr> (block)!=0)
+ m_attrs.push_back (block);
+ else
+ {
+ m_nestedTags.push_back (block);
+ break;
+ }
+ }
+
+ // parse the rest of nested blocks
+ while (!start.IsEnd () && BufferIteratorPeekU8 (start)!=CCN_CLOSE)
+ {
+ Ptr<Block> block = Block::ParseBlock (start);
+ m_nestedTags.push_back (block);
+ }
+
+ if (start.IsEnd ()) //should not be the end
+ throw CcnbDecodingException ();
+
+ start.ReadU8 (); // read CCN_CLOSE
+}
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/tag.h b/model/wire/ccnb/ccnb-parser/syntax-tree/tag.h
new file mode 100644
index 0000000..8949119
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/tag.h
@@ -0,0 +1,64 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_TAG_H_
+#define _CCNB_PARSER_TAG_H_
+
+#include "base-tag.h"
+#include <string>
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Class to represent TAG ccnb-encoded node
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+class Tag : public BaseTag
+{
+public:
+ /**
+ * \brief Constructor that actually parsed ccnb-encoded TAG block
+ *
+ * \param start buffer iterator pointing to the first byte of TAG block name
+ * \param length length of TAG name - 1 byte (i.e., minimum tag name is 1 byte)
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+ Tag (Buffer::Iterator &start, uint32_t length);
+
+ virtual void accept( VoidNoArguVisitor &v ) { v.visit( *this ); }
+ virtual void accept( VoidVisitor &v, boost::any param ) { v.visit( *this, param ); }
+ virtual boost::any accept( NoArguVisitor &v ) { return v.visit( *this ); }
+ virtual boost::any accept( Visitor &v, boost::any param ) { return v.visit( *this, param ); }
+
+ std::string m_tag; ///< \brief Name of TAG block
+};
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_TAG_H_
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/udata.cc b/model/wire/ccnb/ccnb-parser/syntax-tree/udata.cc
new file mode 100644
index 0000000..9d3c8df
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/udata.cc
@@ -0,0 +1,50 @@
+/* -*- 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 "udata.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+Udata::Udata (Buffer::Iterator &start, uint32_t length)
+{
+ // Ideally, the code should look like this. Unfortunately, we don't have normal compatible iterators
+ // Buffer::Iterator realStart = start;
+ // start.Next (length); // advancing forward
+ // m_udata.assign (realStart, start/*actually, it is the end*/);
+
+ m_udata.reserve (length+1); //just in case we will need \0 at the end later
+ // this is actually the way Read method is implemented in network/src/buffer.cc
+ uint32_t i = 0;
+ for (; !start.IsEnd () && i < length; i++)
+ {
+ m_udata.push_back (start.ReadU8 ());
+ }
+
+ if (i < length && start.IsEnd ())
+ throw CcnbDecodingException ();
+}
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/syntax-tree/udata.h b/model/wire/ccnb/ccnb-parser/syntax-tree/udata.h
new file mode 100644
index 0000000..463898f
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/syntax-tree/udata.h
@@ -0,0 +1,62 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_UDATA_H_
+#define _CCNB_PARSER_UDATA_H_
+
+#include "block.h"
+#include <string>
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Class to represent UDATA ccnb-encoded node
+ */
+class Udata : public Block
+{
+public:
+ /**
+ * \brief Constructor that actually parsed ccnb-encoded UDATA block
+ *
+ * \param start buffer iterator pointing to the first byte of string in ccnb-encoded block
+ * \param length length of data in UDATA block (extracted from the value field)
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+ Udata (Buffer::Iterator &start, uint32_t length);
+
+ virtual void accept( VoidNoArguVisitor &v ) { v.visit( *this ); }
+ virtual void accept( VoidVisitor &v, boost::any param ) { v.visit( *this, param ); }
+ virtual boost::any accept( NoArguVisitor &v ) { return v.visit( *this ); }
+ virtual boost::any accept( Visitor &v, boost::any param ) { return v.visit( *this, param ); }
+
+ std::string m_udata; ///< \brief field holding a parsed UDATA value of the block
+};
+
+} // namespace CcnbParser
+} // namespace wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_UDATA_H_
diff --git a/model/wire/ccnb/ccnb-parser/visitors/content-type-visitor.cc b/model/wire/ccnb/ccnb-parser/visitors/content-type-visitor.cc
new file mode 100644
index 0000000..91112da
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/content-type-visitor.cc
@@ -0,0 +1,54 @@
+/* -*- 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-type-visitor.h"
+#include "../syntax-tree/blob.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+boost::any
+ContentTypeVisitor::visit (Blob &n)
+{
+ // Buffer n.m_blob;
+ if (n.m_blobSize != 3)
+ throw CcnbDecodingException ();
+
+ uint32_t type =
+ (n.m_blob [0] << 16) |
+ (n.m_blob [1] << 8 ) |
+ (n.m_blob [2] );
+
+ return boost::any (type);
+}
+
+boost::any
+ContentTypeVisitor::visit (Udata &n)
+{
+ // std::string n.m_udata;
+ throw CcnbDecodingException ();
+}
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/visitors/content-type-visitor.h b/model/wire/ccnb/ccnb-parser/visitors/content-type-visitor.h
new file mode 100644
index 0000000..aa9abbf
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/content-type-visitor.h
@@ -0,0 +1,52 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_CONTENT_TYPE_VISITOR_H_
+#define _CCNB_PARSER_CONTENT_TYPE_VISITOR_H_
+
+#include "no-argu-depth-first-visitor.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Visitor to obtain nonce value from BLOB block
+ *
+ * Note, only first 32 bits will be actually parsed into nonce. If
+ * original Nonce contains more, the rest will be ignored
+ *
+ * Will return empty boost::any() if called on anything except BLOB block
+ */
+class ContentTypeVisitor : public NoArguDepthFirstVisitor
+{
+public:
+ virtual boost::any visit (Blob &n);
+ virtual boost::any visit (Udata &n); ///< Throws parsing error if BLOB object is encountered
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_CONTENT_TYPE_VISITOR_H_
diff --git a/model/wire/ccnb/ccnb-parser/visitors/depth-first-visitor.cc b/model/wire/ccnb/ccnb-parser/visitors/depth-first-visitor.cc
new file mode 100644
index 0000000..b82b140
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/depth-first-visitor.cc
@@ -0,0 +1,112 @@
+/* -*- 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 "depth-first-visitor.h"
+
+#include "../syntax-tree/blob.h"
+#include "../syntax-tree/udata.h"
+#include "../syntax-tree/tag.h"
+#include "../syntax-tree/dtag.h"
+#include "../syntax-tree/attr.h"
+#include "../syntax-tree/dattr.h"
+#include "../syntax-tree/ext.h"
+
+#include <boost/foreach.hpp>
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+boost::any
+DepthFirstVisitor::visit (Blob &n, boost::any param)
+{
+ // Buffer n.m_blob;
+ return n.m_blob;
+}
+
+boost::any
+DepthFirstVisitor::visit (Udata &n, boost::any param)
+{
+ // std::string n.m_udata;
+ return n.m_udata;
+}
+
+boost::any
+DepthFirstVisitor::visit (Tag &n, boost::any param)
+{
+ // std::string n.m_tag;
+ // std::list<Ptr<Block> > n.m_attrs;
+ // std::list<Ptr<Block> > n.m_nestedBlocks;
+ BOOST_FOREACH (Ptr<Block> block, n.m_attrs)
+ {
+ block->accept (*this, param);
+ }
+ BOOST_FOREACH (Ptr<Block> block, n.m_nestedTags)
+ {
+ block->accept (*this, param);
+ }
+ return boost::any();
+}
+
+boost::any
+DepthFirstVisitor::visit (Dtag &n, boost::any param)
+{
+ // std::string n.m_tag;
+ // std::list<Ptr<Block> > n.m_attrs;
+ // std::list<Ptr<Block> > n.m_nestedBlocks;
+ BOOST_FOREACH (Ptr<Block> block, n.m_attrs)
+ {
+ block->accept (*this, param);
+ }
+ BOOST_FOREACH (Ptr<Block> block, n.m_nestedTags)
+ {
+ block->accept (*this, param);
+ }
+ return boost::any ();
+}
+
+boost::any
+DepthFirstVisitor::visit (Attr &n, boost::any param)
+{
+ // std::string n.m_attr;
+ // Ptr<Udata> n.m_value;
+ return boost::any ();
+}
+
+boost::any
+DepthFirstVisitor::visit (Dattr &n, boost::any param)
+{
+ // uint32_t n.m_dattr;
+ // Ptr<Udata> n.m_value;
+ return boost::any ();
+}
+
+boost::any
+DepthFirstVisitor::visit (Ext &n, boost::any param)
+{
+ // uint64_t n.m_extSubtype;
+ return n.m_extSubtype;
+}
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/visitors/depth-first-visitor.h b/model/wire/ccnb/ccnb-parser/visitors/depth-first-visitor.h
new file mode 100644
index 0000000..be701b1
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/depth-first-visitor.h
@@ -0,0 +1,52 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_DEPTH_FIRST_VISITOR_H_
+#define _CCNB_PARSER_DEPTH_FIRST_VISITOR_H_
+
+#include "visitor.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Depth-first visitor that takes boot::any as argument and returns boost::any value
+ */
+class DepthFirstVisitor : public Visitor
+{
+public:
+ virtual boost::any visit (Blob&, boost::any);
+ virtual boost::any visit (Udata&, boost::any);
+ virtual boost::any visit (Tag&, boost::any);
+ virtual boost::any visit (Attr&, boost::any);
+ virtual boost::any visit (Dtag&, boost::any);
+ virtual boost::any visit (Dattr&, boost::any);
+ virtual boost::any visit (Ext&, boost::any);
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_DEPTH_FIRST_VISITOR_H_
diff --git a/model/wire/ccnb/ccnb-parser/visitors/name-visitor.cc b/model/wire/ccnb/ccnb-parser/visitors/name-visitor.cc
new file mode 100644
index 0000000..13043d3
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/name-visitor.cc
@@ -0,0 +1,62 @@
+/* -*- 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 "name-visitor.h"
+
+#include "string-visitor.h"
+#include "../syntax-tree/dtag.h"
+
+#include "ns3/ndn-name.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+void
+NameVisitor::visit (Dtag &n, boost::any param/*should be Name* */)
+{
+ // uint32_t n.m_dtag;
+ // std::list<Ptr<Block> > n.m_nestedBlocks;
+ static StringVisitor stringVisitor;
+
+ Name &components = *(boost::any_cast<Name*> (param));
+
+ switch (n.m_dtag)
+ {
+ case CCN_DTAG_Component:
+ if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
+ throw CcnbDecodingException ();
+ components.Add (
+ boost::any_cast<std::string> ((*n.m_nestedTags.begin())->accept(
+ stringVisitor
+ )));
+ break;
+ default:
+ // ignore any other components
+ // when parsing Exclude, there could be <Any /> and <Bloom /> tags
+ break;
+ }
+}
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/visitors/name-visitor.h b/model/wire/ccnb/ccnb-parser/visitors/name-visitor.h
new file mode 100644
index 0000000..f71e202
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/name-visitor.h
@@ -0,0 +1,47 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_NAME_COMPONENTS_VISITOR_H_
+#define _CCNB_PARSER_NAME_COMPONENTS_VISITOR_H_
+
+#include "void-depth-first-visitor.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Visitor to obtain fill CcnxName object with name components
+ */
+class NameVisitor : public VoidDepthFirstVisitor
+{
+public:
+ virtual void visit (Dtag &n, boost::any param/*should be Name* */);
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_NAME_COMPONENTS_VISITOR_H_
+
diff --git a/model/wire/ccnb/ccnb-parser/visitors/no-argu-depth-first-visitor.cc b/model/wire/ccnb/ccnb-parser/visitors/no-argu-depth-first-visitor.cc
new file mode 100644
index 0000000..6393e7e
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/no-argu-depth-first-visitor.cc
@@ -0,0 +1,112 @@
+/* -*- 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 "no-argu-depth-first-visitor.h"
+
+#include "../syntax-tree/blob.h"
+#include "../syntax-tree/udata.h"
+#include "../syntax-tree/tag.h"
+#include "../syntax-tree/dtag.h"
+#include "../syntax-tree/attr.h"
+#include "../syntax-tree/dattr.h"
+#include "../syntax-tree/ext.h"
+
+#include <boost/foreach.hpp>
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+boost::any
+NoArguDepthFirstVisitor::visit (Blob &n)
+{
+ // Buffer n.m_blob;
+ return n.m_blob;
+}
+
+boost::any
+NoArguDepthFirstVisitor::visit (Udata &n)
+{
+ // std::string n.m_udata;
+ return n.m_udata;
+}
+
+boost::any
+NoArguDepthFirstVisitor::visit (Tag &n)
+{
+ // uint32_t n.m_dtag;
+ // std::list<Ptr<Block> > n.m_attrs;
+ // std::list<Ptr<Block> > n.m_nestedBlocks;
+ BOOST_FOREACH (Ptr<Block> block, n.m_attrs)
+ {
+ block->accept (*this);
+ }
+ BOOST_FOREACH (Ptr<Block> block, n.m_nestedTags)
+ {
+ block->accept (*this);
+ }
+ return boost::any ();
+}
+
+boost::any
+NoArguDepthFirstVisitor::visit (Dtag &n)
+{
+ // uint32_t n.m_dtag;
+ // std::list<Ptr<Block> > n.m_attrs;
+ // std::list<Ptr<Block> > n.m_nestedBlocks;
+ BOOST_FOREACH (Ptr<Block> block, n.m_attrs)
+ {
+ block->accept (*this);
+ }
+ BOOST_FOREACH (Ptr<Block> block, n.m_nestedTags)
+ {
+ block->accept (*this);
+ }
+ return boost::any();
+}
+
+boost::any
+NoArguDepthFirstVisitor::visit (Attr &n)
+{
+ // std::string n.m_attr;
+ // Ptr<Udata> n.m_value;
+ return boost::any ();
+}
+
+boost::any
+NoArguDepthFirstVisitor::visit (Dattr &n)
+{
+ // uint32_t n.m_dattr;
+ // Ptr<Udata> n.m_value;
+ return boost::any ();
+}
+
+boost::any
+NoArguDepthFirstVisitor::visit (Ext &n)
+{
+ // uint64_t n.m_extSubtype;
+ return n.m_extSubtype;
+}
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/visitors/no-argu-depth-first-visitor.h b/model/wire/ccnb/ccnb-parser/visitors/no-argu-depth-first-visitor.h
new file mode 100644
index 0000000..c400083
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/no-argu-depth-first-visitor.h
@@ -0,0 +1,52 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_NO_ARGU_DEPTH_FIRST_VISITOR_H_
+#define _CCNB_PARSER_NO_ARGU_DEPTH_FIRST_VISITOR_H_
+
+#include "no-argu-visitor.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Depth-first visitor that takes no arguments and returns boost::any value
+ */
+class NoArguDepthFirstVisitor : public NoArguVisitor
+{
+public:
+ virtual boost::any visit (Blob& );
+ virtual boost::any visit (Udata&);
+ virtual boost::any visit (Tag& );
+ virtual boost::any visit (Attr& );
+ virtual boost::any visit (Dtag& );
+ virtual boost::any visit (Dattr&);
+ virtual boost::any visit (Ext& );
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_NO_ARGU_DEPTH_FIRST_VISITOR_H_
diff --git a/model/wire/ccnb/ccnb-parser/visitors/no-argu-visitor.h b/model/wire/ccnb/ccnb-parser/visitors/no-argu-visitor.h
new file mode 100644
index 0000000..d603a0a
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/no-argu-visitor.h
@@ -0,0 +1,58 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_NO_ARGU_VISITOR_H_
+#define _CCNB_PARSER_NO_ARGU_VISITOR_H_
+
+#include "../common.h"
+#include <boost/any.hpp>
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Visitor interface that takes no arguments and returns boost::any
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ * for ccnb encoding format help
+ */
+class NoArguVisitor
+{
+public:
+ virtual boost::any visit (Blob& )=0; ///< \brief Method accepting BLOB block
+ virtual boost::any visit (Udata&)=0; ///< \brief Method accepting UDATA block
+ virtual boost::any visit (Tag& )=0; ///< \brief Method accepting TAG block
+ virtual boost::any visit (Attr& )=0; ///< \brief Method accepting ATTR block
+ virtual boost::any visit (Dtag& )=0; ///< \brief Method accepting DTAG block
+ virtual boost::any visit (Dattr&)=0; ///< \brief Method accepting DATTR block
+ virtual boost::any visit (Ext& )=0; ///< \brief Method accepting EXT block
+
+ virtual ~NoArguVisitor () { }
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_NO_ARGU_VISITOR_H_
diff --git a/model/wire/ccnb/ccnb-parser/visitors/non-negative-integer-visitor.cc b/model/wire/ccnb/ccnb-parser/visitors/non-negative-integer-visitor.cc
new file mode 100644
index 0000000..9c2fee3
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/non-negative-integer-visitor.cc
@@ -0,0 +1,55 @@
+/* -*- 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 "non-negative-integer-visitor.h"
+
+#include "../syntax-tree/blob.h"
+#include "../syntax-tree/udata.h"
+#include <sstream>
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+boost::any
+NonNegativeIntegerVisitor::visit (Blob &n) //to throw parsing error
+{
+ // Buffer n.m_blob;
+ throw CcnbDecodingException ();
+}
+
+boost::any
+NonNegativeIntegerVisitor::visit (Udata &n)
+{
+ // std::string n.m_udata;
+ std::istringstream is (n.m_udata);
+ int32_t value;
+ is >> value;
+ if (value<0) // value should be non-negative
+ throw CcnbDecodingException ();
+
+ return static_cast<uint32_t> (value);
+}
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/visitors/non-negative-integer-visitor.h b/model/wire/ccnb/ccnb-parser/visitors/non-negative-integer-visitor.h
new file mode 100644
index 0000000..027e0eb
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/non-negative-integer-visitor.h
@@ -0,0 +1,49 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_NON_NEGATIVE_INTEGER_VISITOR_H_
+#define _CCNB_PARSER_NON_NEGATIVE_INTEGER_VISITOR_H_
+
+#include "no-argu-depth-first-visitor.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Visitor to obtain non-negative integer value from UDATA block
+ *
+ * Will return empty boost::any() if called on anything except UDATA block
+ */
+class NonNegativeIntegerVisitor : public NoArguDepthFirstVisitor
+{
+public:
+ virtual boost::any visit (Blob &n); ///< Throws an exception if BLOB object is encountered
+ virtual boost::any visit (Udata &n);
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_NON_NEGATIVE_INTEGER_VISITOR_H_
diff --git a/model/wire/ccnb/ccnb-parser/visitors/string-visitor.cc b/model/wire/ccnb/ccnb-parser/visitors/string-visitor.cc
new file mode 100644
index 0000000..5c41779
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/string-visitor.cc
@@ -0,0 +1,47 @@
+/* -*- 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 "string-visitor.h"
+#include "../syntax-tree/udata.h"
+#include "../syntax-tree/blob.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+boost::any
+StringVisitor::visit (Blob &n)
+{
+ // Buffer n.m_blob;
+ return std::string (n.m_blob, n.m_blobSize);
+}
+
+boost::any
+StringVisitor::visit (Udata &n)
+{
+ // std::string n.m_udata;
+ return n.m_udata;
+}
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/visitors/string-visitor.h b/model/wire/ccnb/ccnb-parser/visitors/string-visitor.h
new file mode 100644
index 0000000..b6a74fd
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/string-visitor.h
@@ -0,0 +1,49 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_STRING_VISITOR_H_
+#define _CCNB_PARSER_STRING_VISITOR_H_
+
+#include "no-argu-depth-first-visitor.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Visitor to obtain string value from UDATA block
+ *
+ * Will return empty boost::any() if called on anything except UDATA block
+ */
+class StringVisitor : public NoArguDepthFirstVisitor
+{
+public:
+ virtual boost::any visit (Blob &n);
+ virtual boost::any visit (Udata &n);
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_STRING_VISITOR_H_
diff --git a/model/wire/ccnb/ccnb-parser/visitors/timestamp-visitor.cc b/model/wire/ccnb/ccnb-parser/visitors/timestamp-visitor.cc
new file mode 100644
index 0000000..efea82a
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/timestamp-visitor.cc
@@ -0,0 +1,67 @@
+/* -*- 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 "timestamp-visitor.h"
+#include "../syntax-tree/blob.h"
+
+#include "ns3/nstime.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+boost::any/*Time*/
+TimestampVisitor::visit (Blob &n)
+{
+ // Buffer n.m_blob;
+ if (n.m_blobSize < 2)
+ throw CcnbDecodingException ();
+
+ const char *start = n.m_blob;
+
+ intmax_t seconds = 0;
+ intmax_t nanoseconds = 0;
+
+ for (uint32_t i=0; i < n.m_blobSize-2; i++)
+ {
+ seconds = (seconds << 8) | (uint8_t)start[i];
+ }
+ uint8_t combo = start[n.m_blobSize-2]; // 4 most significant bits hold 4 least significant bits of number of seconds
+ seconds = (seconds << 4) | (combo >> 4);
+
+ nanoseconds = combo & 0x0F; /*00001111*/ // 4 least significant bits hold 4 most significant bits of number of
+ nanoseconds = (nanoseconds << 8) | start[n.m_blobSize-1];
+ nanoseconds = (intmax_t) ((nanoseconds / 4096.0/*2^12*/) * 1000000 /*up-convert useconds*/);
+
+ return boost::any (Time::FromInteger (seconds, Time::S) + Time::FromInteger (nanoseconds, Time::US));
+}
+
+boost::any
+TimestampVisitor::visit (Udata &n)
+{
+ // std::string n.m_udata;
+ throw CcnbDecodingException ();
+}
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/visitors/timestamp-visitor.h b/model/wire/ccnb/ccnb-parser/visitors/timestamp-visitor.h
new file mode 100644
index 0000000..a5ad224
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/timestamp-visitor.h
@@ -0,0 +1,49 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_TIMESTAMP_VISITOR_H_
+#define _CCNB_PARSER_TIMESTAMP_VISITOR_H_
+
+#include "no-argu-depth-first-visitor.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Visitor to obtain timestamp value from BLOB block
+ *
+ * Will return empty boost::any() if called on anything except BLOB block
+ */
+class TimestampVisitor : public NoArguDepthFirstVisitor
+{
+public:
+ virtual boost::any visit (Blob &n);
+ virtual boost::any/*Time*/ visit (Udata &n); ///< Throws parsing error if UDATA object is encountered
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_TIMESTAMP_VISITOR_H_
diff --git a/model/wire/ccnb/ccnb-parser/visitors/uint32t-blob-visitor.cc b/model/wire/ccnb/ccnb-parser/visitors/uint32t-blob-visitor.cc
new file mode 100644
index 0000000..f5620ae
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/uint32t-blob-visitor.cc
@@ -0,0 +1,49 @@
+/* -*- 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 "uint32t-blob-visitor.h"
+#include "../syntax-tree/blob.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+boost::any
+Uint32tBlobVisitor::visit (Blob &n)
+{
+ // Buffer n.m_blob;
+ if (n.m_blobSize < 4)
+ throw CcnbDecodingException ();
+
+ return boost::any (*(reinterpret_cast<uint32_t*> (n.m_blob)));
+}
+
+boost::any
+Uint32tBlobVisitor::visit (Udata &n)
+{
+ // std::string n.m_udata;
+ throw CcnbDecodingException ();
+}
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/visitors/uint32t-blob-visitor.h b/model/wire/ccnb/ccnb-parser/visitors/uint32t-blob-visitor.h
new file mode 100644
index 0000000..5d30405
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/uint32t-blob-visitor.h
@@ -0,0 +1,52 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_UINT32T_BLOB_VISITOR_H_
+#define _CCNB_PARSER_UINT32T_BLOB_VISITOR_H_
+
+#include "no-argu-depth-first-visitor.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Visitor to obtain nonce value from BLOB block
+ *
+ * Note, only first 32 bits will be actually parsed into nonce. If
+ * original Nonce contains more, the rest will be ignored
+ *
+ * Will return empty boost::any() if called on anything except BLOB block
+ */
+class Uint32tBlobVisitor : public NoArguDepthFirstVisitor
+{
+public:
+ virtual boost::any visit (Blob &n);
+ virtual boost::any visit (Udata &n); ///< Throws parsing error if BLOB object is encountered
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_UINT32T_BLOB_VISITOR_H_
diff --git a/model/wire/ccnb/ccnb-parser/visitors/visitor.h b/model/wire/ccnb/ccnb-parser/visitors/visitor.h
new file mode 100644
index 0000000..ee9f831
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/visitor.h
@@ -0,0 +1,58 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_VISITOR_H_
+#define _CCNB_PARSER_VISITOR_H_
+
+#include "../common.h"
+#include <boost/any.hpp>
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Visitor interface that takes one boost::any argument and returns boost::any
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ * for ccnb encoding format help
+ */
+class Visitor
+{
+public:
+ virtual boost::any visit (Blob&, boost::any)=0; ///< \brief Method accepting BLOB block
+ virtual boost::any visit (Udata&, boost::any)=0; ///< \brief Method accepting UDATA block
+ virtual boost::any visit (Tag&, boost::any)=0; ///< \brief Method accepting TAG block
+ virtual boost::any visit (Attr&, boost::any)=0; ///< \brief Method accepting ATTR block
+ virtual boost::any visit (Dtag&, boost::any)=0; ///< \brief Method accepting DTAG block
+ virtual boost::any visit (Dattr&, boost::any)=0; ///< \brief Method accepting DATTR block
+ virtual boost::any visit (Ext&, boost::any)=0; ///< \brief Method accepting EXT block
+
+ virtual ~Visitor () { }
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_VISITOR_H_
diff --git a/model/wire/ccnb/ccnb-parser/visitors/void-depth-first-visitor.cc b/model/wire/ccnb/ccnb-parser/visitors/void-depth-first-visitor.cc
new file mode 100644
index 0000000..8a8adde
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/void-depth-first-visitor.cc
@@ -0,0 +1,105 @@
+/* -*- 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 "void-depth-first-visitor.h"
+
+#include "../syntax-tree/blob.h"
+#include "../syntax-tree/udata.h"
+#include "../syntax-tree/tag.h"
+#include "../syntax-tree/dtag.h"
+#include "../syntax-tree/attr.h"
+#include "../syntax-tree/dattr.h"
+#include "../syntax-tree/ext.h"
+
+#include <boost/foreach.hpp>
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+void
+VoidDepthFirstVisitor::visit (Blob &n, boost::any param)
+{
+ // Buffer n.m_blob;
+}
+
+void
+VoidDepthFirstVisitor::visit (Udata &n, boost::any param)
+{
+ // std::string n.m_udata;
+}
+
+void
+VoidDepthFirstVisitor::visit (Tag &n, boost::any param)
+{
+ // std::string n.m_tag;
+ // std::list<Ptr<Block> > n.m_attrs;
+ // std::list<Ptr<Block> > n.m_nestedBlocks;
+ BOOST_FOREACH (Ptr<Block> block, n.m_attrs)
+ {
+ block->accept (*this, param);
+ }
+ BOOST_FOREACH (Ptr<Block> block, n.m_nestedTags)
+ {
+ block->accept (*this, param);
+ }
+}
+
+void
+VoidDepthFirstVisitor::visit (Dtag &n, boost::any param)
+{
+ // std::string n.m_tag;
+ // std::list<Ptr<Block> > n.m_attrs;
+ // std::list<Ptr<Block> > n.m_nestedBlocks;
+ BOOST_FOREACH (Ptr<Block> block, n.m_attrs)
+ {
+ block->accept (*this, param);
+ }
+ BOOST_FOREACH (Ptr<Block> block, n.m_nestedTags)
+ {
+ block->accept (*this, param);
+ }
+}
+
+void
+VoidDepthFirstVisitor::visit (Attr &n, boost::any param)
+{
+ // std::string n.m_attr;
+ // Ptr<Udata> n.m_value;
+}
+
+void
+VoidDepthFirstVisitor::visit (Dattr &n, boost::any param)
+{
+ // uint32_t n.m_dattr;
+ // Ptr<Udata> n.m_value;
+}
+
+void
+VoidDepthFirstVisitor::visit (Ext &n, boost::any param)
+{
+ // uint64_t n.m_extSubtype;
+}
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/visitors/void-depth-first-visitor.h b/model/wire/ccnb/ccnb-parser/visitors/void-depth-first-visitor.h
new file mode 100644
index 0000000..96f8b6f
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/void-depth-first-visitor.h
@@ -0,0 +1,52 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_VOID_DEPTH_FIRST_VISITOR_H_
+#define _CCNB_PARSER_VOID_DEPTH_FIRST_VISITOR_H_
+
+#include "void-visitor.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Depth-first visitor that takes one argument and returns nothing
+ */
+class VoidDepthFirstVisitor : public VoidVisitor
+{
+public:
+ virtual void visit (Blob&, boost::any);
+ virtual void visit (Udata&, boost::any);
+ virtual void visit (Tag&, boost::any);
+ virtual void visit (Attr&, boost::any);
+ virtual void visit (Dtag&, boost::any);
+ virtual void visit (Dattr&, boost::any);
+ virtual void visit (Ext&, boost::any);
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_VOID_DEPTH_FIRST_VISITOR_H_
diff --git a/model/wire/ccnb/ccnb-parser/visitors/void-no-argu-depth-first-visitor.cc b/model/wire/ccnb/ccnb-parser/visitors/void-no-argu-depth-first-visitor.cc
new file mode 100644
index 0000000..5bcecb8
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/void-no-argu-depth-first-visitor.cc
@@ -0,0 +1,105 @@
+/* -*- 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 "void-no-argu-depth-first-visitor.h"
+
+#include "../syntax-tree/blob.h"
+#include "../syntax-tree/udata.h"
+#include "../syntax-tree/tag.h"
+#include "../syntax-tree/dtag.h"
+#include "../syntax-tree/attr.h"
+#include "../syntax-tree/dattr.h"
+#include "../syntax-tree/ext.h"
+
+#include <boost/foreach.hpp>
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+void
+VoidNoArguDepthFirstVisitor::visit (Blob &n)
+{
+ // Buffer n.m_blob;
+}
+
+void
+VoidNoArguDepthFirstVisitor::visit (Udata &n)
+{
+ // std::string n.m_udata;
+}
+
+void
+VoidNoArguDepthFirstVisitor::visit (Tag &n)
+{
+ // std::string n.m_tag;
+ // std::list<Ptr<Block> > n.m_attrs;
+ // std::list<Ptr<Block> > n.m_nestedBlocks;
+ BOOST_FOREACH (Ptr<Block> block, n.m_attrs)
+ {
+ block->accept (*this);
+ }
+ BOOST_FOREACH (Ptr<Block> block, n.m_nestedTags)
+ {
+ block->accept (*this);
+ }
+}
+
+void
+VoidNoArguDepthFirstVisitor::visit (Dtag &n)
+{
+ // uint32_t n.m_dtag;
+ // std::list<Ptr<Block> > n.m_attrs;
+ // std::list<Ptr<Block> > n.m_nestedBlocks;
+ BOOST_FOREACH (Ptr<Block> block, n.m_attrs)
+ {
+ block->accept (*this);
+ }
+ BOOST_FOREACH (Ptr<Block> block, n.m_nestedTags)
+ {
+ block->accept (*this);
+ }
+}
+
+void
+VoidNoArguDepthFirstVisitor::visit (Attr &n)
+{
+ // std::string n.m_attr;
+ // Ptr<Udata> n.m_value;
+}
+
+void
+VoidNoArguDepthFirstVisitor::visit (Dattr &n)
+{
+ // uint32_t n.m_dattr;
+ // Ptr<Udata> n.m_value;
+}
+
+void
+VoidNoArguDepthFirstVisitor::visit (Ext &n)
+{
+ // uint64_t n.m_extSubtype;
+}
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
diff --git a/model/wire/ccnb/ccnb-parser/visitors/void-no-argu-depth-first-visitor.h b/model/wire/ccnb/ccnb-parser/visitors/void-no-argu-depth-first-visitor.h
new file mode 100644
index 0000000..59b59d7
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/void-no-argu-depth-first-visitor.h
@@ -0,0 +1,52 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_VOID_NO_ARGU_DEPTH_FIRST_VISITOR_H_
+#define _CCNB_PARSER_VOID_NO_ARGU_DEPTH_FIRST_VISITOR_H_
+
+#include "void-no-argu-visitor.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Depth-first visitor that takes no arguments and returns nothing
+ */
+class VoidNoArguDepthFirstVisitor : public VoidNoArguVisitor
+{
+public:
+ virtual void visit (Blob& );
+ virtual void visit (Udata&);
+ virtual void visit (Tag& );
+ virtual void visit (Attr& );
+ virtual void visit (Dtag& );
+ virtual void visit (Dattr&);
+ virtual void visit (Ext& );
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_VOID_NO_ARGU_DEPTH_FIRST_VISITOR_H_
diff --git a/model/wire/ccnb/ccnb-parser/visitors/void-no-argu-visitor.h b/model/wire/ccnb/ccnb-parser/visitors/void-no-argu-visitor.h
new file mode 100644
index 0000000..a98d933
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/void-no-argu-visitor.h
@@ -0,0 +1,57 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_VOID_NO_ARGU_VISITOR_H_
+#define _CCNB_PARSER_VOID_NO_ARGU_VISITOR_H_
+
+#include "../common.h"
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ndn-ccnb
+ * \brief Visitor interface that takes no arguments and returns nothing
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ * for ccnb encoding format help
+ */
+class VoidNoArguVisitor
+{
+public:
+ virtual void visit (Blob& )=0; ///< \brief Method accepting BLOB block
+ virtual void visit (Udata&)=0; ///< \brief Method accepting UDATA block
+ virtual void visit (Tag& )=0; ///< \brief Method accepting TAG block
+ virtual void visit (Attr& )=0; ///< \brief Method accepting ATTR block
+ virtual void visit (Dtag& )=0; ///< \brief Method accepting DTAG block
+ virtual void visit (Dattr&)=0; ///< \brief Method accepting DATTR block
+ virtual void visit (Ext& )=0; ///< \brief Method accepting EXT block
+
+ virtual ~VoidNoArguVisitor () { }
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_VOID_NO_ARGU_VISITOR_H_
diff --git a/model/wire/ccnb/ccnb-parser/visitors/void-visitor.h b/model/wire/ccnb/ccnb-parser/visitors/void-visitor.h
new file mode 100644
index 0000000..8c51e21
--- /dev/null
+++ b/model/wire/ccnb/ccnb-parser/visitors/void-visitor.h
@@ -0,0 +1,58 @@
+/* -*- 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>
+ */
+
+#ifndef _CCNB_PARSER_VOID_VISITOR_H_
+#define _CCNB_PARSER_VOID_VISITOR_H_
+
+#include "../common.h"
+#include <boost/any.hpp>
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace CcnbParser {
+
+/**
+ * \ingroup ndn-ccnb
+ * \brief Visitor interface that takes one boost::any argument and returns nothing
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ * for ccnb encoding format help
+ */
+class VoidVisitor
+{
+public:
+ virtual void visit (Blob&, boost::any)=0; ///< \brief Method accepting BLOB block
+ virtual void visit (Udata&, boost::any)=0; ///< \brief Method accepting UDATA block
+ virtual void visit (Tag&, boost::any)=0; ///< \brief Method accepting TAG block
+ virtual void visit (Attr&, boost::any)=0; ///< \brief Method accepting ATTR block
+ virtual void visit (Dtag&, boost::any)=0; ///< \brief Method accepting DTAG block
+ virtual void visit (Dattr&, boost::any)=0; ///< \brief Method accepting DATTR block
+ virtual void visit (Ext&, boost::any)=0; ///< \brief Method accepting EXT block
+
+ virtual ~VoidVisitor () { }
+};
+
+} // CcnbParser
+} // wire
+
+NDN_NAMESPACE_END
+
+#endif // _CCNB_PARSER_VOID_VISITOR_H_