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* implemented STOMP support for external message queueing systems

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* (ticket-724)
* included PHP STOMP libraries (http://code.google.com/p/stompcli/)
This commit is contained in:
Federico Marani
2009-02-20 18:57:20 +00:00
parent 09bab90409
commit 2ac684f53d
9 changed files with 980 additions and 20 deletions
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74
lib/queuehandler.php
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@@ -75,15 +75,9 @@ class QueueHandler extends Daemon
return true;
}
function run()
{
if (!$this->start()) {
return false;
}
$this->log(LOG_INFO, 'checking for queued notices');
$transport = $this->transport();
function db_dispatch() {
do {
$qi = Queue_item::top($transport);
$qi = Queue_item::top($this->transport());
if ($qi) {
$this->log(LOG_INFO, 'Got item enqueued '.common_exact_date($qi->created));
$notice = Notice::staticGet($qi->notice_id);
@@ -115,6 +109,68 @@ class QueueHandler extends Daemon
$this->idle(5);
}
} while (true);
}
function stomp_dispatch() {
require("Stomp.php");
$con = new Stomp(common_config('queue','stomp_server'));
if (!$con->connect()) {
$this->log(LOG_ERR, 'Failed to connect to queue server');
return false;
}
$queue_basename = common_config('queue','queue_basename');
// subscribe to the relevant queue (format: basename-transport)
$con->subscribe('/queue/'.$queue_basename.'-'.$this->transport());
do {
$frame = $con->readFrame();
if ($frame) {
$this->log(LOG_INFO, 'Got item enqueued '.common_exact_date($frame->headers['created']));
// XXX: Now the queue handler receives only the ID of the
// notice, and it has to get it from the DB
// A massive improvement would be avoid DB query by transmitting
// all the notice details via queue server...
$notice = Notice::staticGet($frame->body);
if ($notice) {
$this->log(LOG_INFO, 'broadcasting notice ID = ' . $notice->id);
$result = $this->handle_notice($notice);
if ($result) {
// if the msg has been handled positively, ack it
// and the queue server will remove it from the queue
$con->ack($frame);
$this->log(LOG_INFO, 'finished broadcasting notice ID = ' . $notice->id);
}
else {
// no ack
$this->log(LOG_WARNING, 'Failed broadcast for notice ID = ' . $notice->id);
}
$notice->free();
unset($notice);
$notice = null;
} else {
$this->log(LOG_WARNING, 'queue item for notice that does not exist');
}
}
} while (true);
$con->disconnect();
}
function run()
{
if (!$this->start()) {
return false;
}
$this->log(LOG_INFO, 'checking for queued notices');
if (common_config('queue','subsystem') == 'stomp') {
$this->stomp_dispatch();
}
else {
$this->db_dispatch();
}
if (!$this->finish()) {
return false;
}
@@ -143,4 +199,4 @@ class QueueHandler extends Daemon
common_log($level, $this->class_name() . ' ('. $this->get_id() .'): '.$msg);
}
}