1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include <qpid/broker/Message.h>
#include <iostream>
// AMQP version change - kpvdr 2006-11-17
#include <qpid/framing/ProtocolVersion.h>
#include <qpid/framing/BasicDeliverBody.h>
#include <qpid/framing/BasicGetOkBody.h>
using namespace boost;
using namespace qpid::broker;
using namespace qpid::framing;
Message::Message(const ConnectionToken* const _publisher,
const string& _exchange, const string& _routingKey,
bool _mandatory, bool _immediate) : publisher(_publisher),
exchange(_exchange),
routingKey(_routingKey),
mandatory(_mandatory),
immediate(_immediate),
redelivered(false),
size(0),
persistenceId(0) {}
Message::Message(Buffer& buffer) : publisher(0), mandatory(false), immediate(false), redelivered(false), size(0), persistenceId(0){
decode(buffer);
}
Message::Message() : publisher(0), mandatory(false), immediate(false), redelivered(false), size(0), persistenceId(0){}
Message::~Message(){}
void Message::setHeader(AMQHeaderBody::shared_ptr _header){
this->header = _header;
}
void Message::addContent(AMQContentBody::shared_ptr data){
content.push_back(data);
size += data->size();
}
bool Message::isComplete(){
return header.get() && (header->getContentSize() == contentSize());
}
void Message::redeliver(){
redelivered = true;
}
void Message::deliver(OutputHandler* out, int channel,
const string& consumerTag, u_int64_t deliveryTag,
u_int32_t framesize){
// AMQP version change - kpvdr 2006-11-17
// TODO: Make this class version-aware and link these hard-wired numbers to that version
out->send(new AMQFrame(channel, new BasicDeliverBody(ProtocolVersion(8,0), consumerTag, deliveryTag, redelivered, exchange, routingKey)));
sendContent(out, channel, framesize);
}
void Message::sendGetOk(OutputHandler* out,
int channel,
u_int32_t messageCount,
u_int64_t deliveryTag,
u_int32_t framesize){
// AMQP version change - kpvdr 2006-11-17
// TODO: Make this class version-aware and link these hard-wired numbers to that version
out->send(new AMQFrame(channel, new BasicGetOkBody(ProtocolVersion(8,0), deliveryTag, redelivered, exchange, routingKey, messageCount)));
sendContent(out, channel, framesize);
}
void Message::sendContent(OutputHandler* out, int channel, u_int32_t framesize){
AMQBody::shared_ptr headerBody = static_pointer_cast<AMQBody, AMQHeaderBody>(header);
out->send(new AMQFrame(channel, headerBody));
for(content_iterator i = content.begin(); i != content.end(); i++){
if((*i)->size() > framesize){
//TODO: need to split it
std::cout << "WARNING: Dropped message. Re-fragmentation not yet implemented." << std::endl;
}else{
AMQBody::shared_ptr contentBody = static_pointer_cast<AMQBody, AMQContentBody>(*i);
out->send(new AMQFrame(channel, contentBody));
}
}
}
BasicHeaderProperties* Message::getHeaderProperties(){
return dynamic_cast<BasicHeaderProperties*>(header->getProperties());
}
const ConnectionToken* const Message::getPublisher(){
return publisher;
}
bool Message::isPersistent()
{
if(!header) return false;
BasicHeaderProperties* props = getHeaderProperties();
return props && props->getDeliveryMode() == PERSISTENT;
}
void Message::decode(Buffer& buffer)
{
decodeHeader(buffer);
decodeContent(buffer);
}
void Message::decodeHeader(Buffer& buffer)
{
buffer.getShortString(exchange);
buffer.getShortString(routingKey);
u_int32_t headerSize = buffer.getLong();
AMQHeaderBody::shared_ptr headerBody(new AMQHeaderBody());
headerBody->decode(buffer, headerSize);
setHeader(headerBody);
}
void Message::decodeContent(Buffer& buffer)
{
AMQContentBody::shared_ptr contentBody;
while (buffer.available()) {
AMQFrame contentFrame;
contentFrame.decode(buffer);
contentBody = dynamic_pointer_cast<AMQContentBody, AMQBody>(contentFrame.getBody());
addContent(contentBody);
}
}
void Message::encode(Buffer& buffer)
{
encodeHeader(buffer);
encodeContent(buffer);
}
void Message::encodeHeader(Buffer& buffer)
{
buffer.putShortString(exchange);
buffer.putShortString(routingKey);
buffer.putLong(header->size());
header->encode(buffer);
}
void Message::encodeContent(Buffer& buffer)
{
//Use a frame around each content block. Not really required but
//gives some error checking at little expense. Could change in the
//future...
AMQBody::shared_ptr body;
for (content_iterator i = content.begin(); i != content.end(); i++) {
body = static_pointer_cast<AMQBody, AMQContentBody>(*i);
AMQFrame contentFrame(0, body);
contentFrame.encode(buffer);
}
}
u_int32_t Message::encodedSize()
{
return encodedHeaderSize() + encodedContentSize();
}
u_int32_t Message::encodedContentSize()
{
int encodedContentSize(0);
for (content_iterator i = content.begin(); i != content.end(); i++) {
encodedContentSize += (*i)->size() + 8;//8 extra bytes for the frame
}
return encodedContentSize;
}
u_int32_t Message::encodedHeaderSize()
{
return exchange.size() + 1
+ routingKey.size() + 1
+ header->size() + 4;//4 extra bytes for size
}
u_int64_t Message::expectedContentSize()
{
return header.get() ? header->getContentSize() : 0;
}
void Message::releaseContent()
{
content.clear();
}
|
