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Alexander Afanasyevc74a6022011-08-15 20:01:35 -07001/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
Alexander Afanasyev08d984e2011-08-13 19:20:22 -07002/*
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: Ilya Moiseenko <iliamo@cs.ucla.edu>
19 * Alexander Afanasyev <alexander.afanasyev@ucla.edu>
20 */
21
22#include "ccnx-content-object-header.h"
23
Alexander Afanasyev45b92d42011-08-14 23:11:38 -070024#include "ns3/log.h"
Alexander Afanasyevf9f4eb02011-12-16 01:51:14 -080025#include "../helper/ccnx-encoding-helper.h"
26#include "../helper/ccnx-decoding-helper.h"
Alexander Afanasyev45b92d42011-08-14 23:11:38 -070027
Alexander Afanasyev08d984e2011-08-13 19:20:22 -070028NS_LOG_COMPONENT_DEFINE ("CcnxContentObjectHeader");
29
30namespace ns3
31{
32
33NS_OBJECT_ENSURE_REGISTERED (CcnxContentObjectHeader);
Alexander Afanasyevc74a6022011-08-15 20:01:35 -070034NS_OBJECT_ENSURE_REGISTERED (CcnxContentObjectTail);
Alexander Afanasyev08d984e2011-08-13 19:20:22 -070035
36TypeId
37CcnxContentObjectHeader::GetTypeId (void)
38{
39 static TypeId tid = TypeId ("ns3::CcnxContentObjectHeader")
Alexander Afanasyev070aa482011-08-20 00:38:25 -070040 .SetGroupName ("Ccnx")
Alexander Afanasyev08d984e2011-08-13 19:20:22 -070041 .SetParent<Header> ()
42 .AddConstructor<CcnxContentObjectHeader> ()
43 ;
44 return tid;
45}
46
47CcnxContentObjectHeader::CcnxContentObjectHeader ()
48{
49}
50
51void
Ilya Moiseenko2bd1bc32011-08-23 16:01:35 -070052CcnxContentObjectHeader::SetName (const Ptr<CcnxNameComponents> &name)
Alexander Afanasyev08d984e2011-08-13 19:20:22 -070053{
54 m_name = name;
55}
56
Ilya Moiseenko2bd1bc32011-08-23 16:01:35 -070057const CcnxNameComponents&
Alexander Afanasyev08d984e2011-08-13 19:20:22 -070058CcnxContentObjectHeader::GetName () const
59{
Alexander Afanasyeve91ab752011-08-31 19:13:40 -070060 if (m_name==0) throw CcnxContentObjectHeaderException();
Alexander Afanasyev08d984e2011-08-13 19:20:22 -070061 return *m_name;
62}
63
64uint32_t
65CcnxContentObjectHeader::GetSerializedSize (void) const
66{
Alexander Afanasyev85a3bca2011-08-31 16:51:03 -070067 // unfortunately, we don't know exact header size in advance
68 return CcnxEncodingHelper::GetSerializedSize (*this);
Alexander Afanasyev08d984e2011-08-13 19:20:22 -070069}
70
71void
72CcnxContentObjectHeader::Serialize (Buffer::Iterator start) const
73{
Alexander Afanasyev834f35c2011-08-16 17:13:50 -070074 CcnxEncodingHelper::Serialize (start, *this);
Alexander Afanasyev08d984e2011-08-13 19:20:22 -070075}
76
77uint32_t
78CcnxContentObjectHeader::Deserialize (Buffer::Iterator start)
79{
Alexander Afanasyev834f35c2011-08-16 17:13:50 -070080 return CcnxDecodingHelper::Deserialize (start, *this); // \todo Debugging is necessary
Alexander Afanasyev08d984e2011-08-13 19:20:22 -070081}
82
83TypeId
84CcnxContentObjectHeader::GetInstanceTypeId (void) const
85{
86 return GetTypeId ();
87}
88
89void
90CcnxContentObjectHeader::Print (std::ostream &os) const
91{
Alexander Afanasyeve91ab752011-08-31 19:13:40 -070092 os << "<ContentObject><Name>" << GetName () << "</Name><Content>";
Alexander Afanasyev08d984e2011-08-13 19:20:22 -070093}
94
Alexander Afanasyevc74a6022011-08-15 20:01:35 -070095////////////////////////////////////////////////////////////////////////////////////////////////////
96
97CcnxContentObjectTail::CcnxContentObjectTail ()
98{
99}
100
101TypeId
102CcnxContentObjectTail::GetTypeId (void)
103{
Alexander Afanasyev834f35c2011-08-16 17:13:50 -0700104 static TypeId tid = TypeId ("ns3::CcnxContentObjectTail")
Alexander Afanasyeve91ab752011-08-31 19:13:40 -0700105 .SetParent<Trailer> ()
106 .AddConstructor<CcnxContentObjectTail> ()
Alexander Afanasyevc74a6022011-08-15 20:01:35 -0700107 ;
108 return tid;
109}
110
111TypeId
112CcnxContentObjectTail::GetInstanceTypeId (void) const
113{
114 return GetTypeId ();
115}
116
117void
118CcnxContentObjectTail::Print (std::ostream &os) const
119{
120 os << "</Content></ContentObject>";
121}
122
123uint32_t
124CcnxContentObjectTail::GetSerializedSize (void) const
125{
126 return 2;
127}
128
129void
130CcnxContentObjectTail::Serialize (Buffer::Iterator start) const
131{
132 Buffer::Iterator i = start;
Alexander Afanasyeve91ab752011-08-31 19:13:40 -0700133 i.Prev (2); // Trailer interface requires us to go backwards
134
Alexander Afanasyevc74a6022011-08-15 20:01:35 -0700135 i.WriteU8 (0x00); // </Content>
136 i.WriteU8 (0x00); // </ContentObject>
137}
138
139uint32_t
140CcnxContentObjectTail::Deserialize (Buffer::Iterator start)
141{
142 Buffer::Iterator i = start;
Alexander Afanasyeve91ab752011-08-31 19:13:40 -0700143 i.Prev (2); // Trailer interface requires us to go backwards
144
Alexander Afanasyevc74a6022011-08-15 20:01:35 -0700145 uint8_t __attribute__ ((unused)) closing_tag_content = i.ReadU8 ();
Alexander Afanasyev834f35c2011-08-16 17:13:50 -0700146 NS_ASSERT_MSG (closing_tag_content==0, "Should be a closing tag </Content> (0x00)");
Alexander Afanasyevc74a6022011-08-15 20:01:35 -0700147
148 uint8_t __attribute__ ((unused)) closing_tag_content_object = i.ReadU8 ();
Alexander Afanasyev834f35c2011-08-16 17:13:50 -0700149 NS_ASSERT_MSG (closing_tag_content_object==0, "Should be a closing tag </ContentObject> (0x00)");
Alexander Afanasyevc74a6022011-08-15 20:01:35 -0700150
151 return 2;
152}
153
154} // namespace ns3