NS-3 based Named Data Networking (NDN) simulator
ndnSIM: NDN, CCN, CCNx, content centric networks
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content-type-visitor.cc
1 /* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
2 /*
3  * Copyright (c) 2011 University of California, Los Angeles
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation;
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  *
18  * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
19  */
20 
21 #include "content-type-visitor.h"
22 #include "../syntax-tree/blob.h"
23 
24 NDN_NAMESPACE_BEGIN
25 
26 namespace wire {
27 namespace CcnbParser {
28 
29 boost::any
30 ContentTypeVisitor::visit (Blob &n)
31 {
32  // Buffer n.m_blob;
33  if (n.m_blobSize != 3)
34  throw CcnbDecodingException ();
35 
36  uint32_t type =
37  (n.m_blob [0] << 16) |
38  (n.m_blob [1] << 8 ) |
39  (n.m_blob [2] );
40 
41  return boost::any (type);
42 }
43 
44 boost::any
45 ContentTypeVisitor::visit (Udata &n)
46 {
47  // std::string n.m_udata;
48  throw CcnbDecodingException ();
49 }
50 
51 } // CcnbParser
52 } // wire
53 
54 NDN_NAMESPACE_END
Exception thrown if there is a parsing error.
Definition: common.h:50
char * m_blob
field holding a parsed BLOB value of the block
Definition: blob.h:56
Class to represent BLOB ccnb-encoded node.
Definition: blob.h:37
uint32_t m_blobSize
field representing size of the BLOB field stored
Definition: blob.h:57
Class to represent UDATA ccnb-encoded node.
Definition: udata.h:36