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
|
<?php
/**
* Laconica, the distributed open-source microblogging tool
*
* Abstract class for queue managers
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category QueueManager
* @package Laconica
* @author Evan Prodromou <evan@controlyourself.ca>
* @author Sarven Capadisli <csarven@controlyourself.ca>
* @copyright 2009 Control Yourself, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://laconi.ca/
*/
require_once 'Stomp.php';
class StompQueueManager
{
var $server = null;
var $username = null;
var $password = null;
var $base = null;
var $con = null;
var $frames = array();
function __construct()
{
$this->server = common_config('queue', 'stomp_server');
$this->username = common_config('queue', 'stomp_username');
$this->password = common_config('queue', 'stomp_password');
$this->base = common_config('queue', 'queue_basename');
}
function _connect()
{
if (empty($this->con)) {
$this->_log(LOG_INFO, "Connecting to '$this->server' as '$this->username'...");
$this->con = new Stomp($this->server);
if ($this->con->connect($this->username, $this->password)) {
$this->_log(LOG_INFO, "Connected.");
} else {
$this->_log(LOG_ERR, 'Failed to connect to queue server');
throw new ServerException('Failed to connect to queue server');
}
}
}
function enqueue($object, $queue)
{
$notice = $object;
$this->_connect();
// XXX: serialize and send entire notice
$result = $this->con->send($this->_queueName($queue),
$notice->id, // BODY of the message
array ('created' => $notice->created));
if (!$result) {
common_log(LOG_ERR, 'Error sending to '.$queue.' queue');
return false;
}
common_log(LOG_DEBUG, 'complete remote queueing notice ID = '
. $notice->id . ' for ' . $queue);
}
function service($queue, $handler)
{
$result = null;
$this->_connect();
$this->con->setReadTimeout($handler->timeout());
$this->con->subscribe($this->_queueName($queue));
while (true) {
$frame = $this->con->readFrame();
if ($frame) {
$notice = Notice::staticGet($frame->body);
if ($handler->handle_notice($notice)) {
$this->_log(LOG_INFO, 'Successfully handled notice '. $notice->id .' posted at ' . $frame->headers['created']);
$this->con->ack($frame);
}
}
$handler->idle(0);
}
$this->con->unsubscribe($this->_queueName($queue));
}
function _queueName($queue)
{
return common_config('queue', 'queue_basename') . $queue;
}
function _log($level, $msg)
{
common_log($level, 'StompQueueManager: '.$msg);
}
}
|
