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
|
/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2010 Marcus Eriksson
*
* Authors:
*
* Marcus Eriksson <krummas@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "rabbitmq_handler.h"
using namespace std;
RabbitMQHandler::RabbitMQHandler(const char* rabbitMQHost,
const int rabbitMQPort,
const char* rabbitMQUsername,
const char* rabbitMQPassword,
const char* rabbitMQVirtualhost)
throw(rabbitmq_handler_exception):
hostname(rabbitMQHost),
port(rabbitMQPort),
username(rabbitMQUsername),
password(rabbitMQPassword),
virtualhost(rabbitMQVirtualhost)
{
rabbitmqConnection = amqp_new_connection();
/* open the socket to the rabbitmq server */
sockfd = amqp_open_socket(hostname, port);
if(sockfd < 0)
{
throw rabbitmq_handler_exception("Could not open socket, is rabbitmq running?");
}
amqp_set_sockfd(rabbitmqConnection, sockfd);
/* login to rabbitmq, handleAMQPError throws exception if there is a problem */
handleAMQPError(amqp_login(rabbitmqConnection,
virtualhost,
0,
131072,
0,
AMQP_SASL_METHOD_PLAIN,
username,
password),
"rabbitmq login");
/* open the channel */
amqp_channel_open(rabbitmqConnection, 1);
}
RabbitMQHandler::~RabbitMQHandler()
{
try
{
handleAMQPError(amqp_channel_close(rabbitmqConnection,
1,
AMQP_REPLY_SUCCESS),
"close channel");
handleAMQPError(amqp_connection_close(rabbitmqConnection,
AMQP_REPLY_SUCCESS),
"close connection");
amqp_destroy_connection(rabbitmqConnection);
}
catch(exception& e) {} // do not throw in destructorn
close(sockfd);
}
void RabbitMQHandler::publish(const uint8_t *message,
const int length,
const char* exchangeName,
const char* routingKey) throw(rabbitmq_handler_exception)
{
amqp_bytes_t b;
b.bytes= (void*)message;
b.len= length;
if(amqp_basic_publish(rabbitmqConnection,
1,
amqp_cstring_bytes(exchangeName),
amqp_cstring_bytes(routingKey),
0,
0,
NULL,
b) < 0)
{
throw rabbitmq_handler_exception("Could not publish message");
}
}
void RabbitMQHandler::handleAMQPError(amqp_rpc_reply_t x, string context) throw(rabbitmq_handler_exception)
{
string errorMessage("");
switch (x.reply_type) {
case AMQP_RESPONSE_NORMAL:
break;
case AMQP_RESPONSE_NONE:
errorMessage.assign("No response in ");
errorMessage.append(context);
throw rabbitmq_handler_exception(errorMessage);
case AMQP_RESPONSE_LIBRARY_EXCEPTION:
case AMQP_RESPONSE_SERVER_EXCEPTION:
switch (x.reply.id) {
case AMQP_CONNECTION_CLOSE_METHOD:
errorMessage.assign("Connection closed in ");
errorMessage.append(context);
throw rabbitmq_handler_exception(errorMessage);
case AMQP_CHANNEL_CLOSE_METHOD:
errorMessage.assign("Channel closed in ");
errorMessage.append(context);
throw rabbitmq_handler_exception(errorMessage);
default:
errorMessage.assign("Unknown error in ");
errorMessage.append(context);
throw rabbitmq_handler_exception(errorMessage);
}
}
}
|