/**
* Publish an order confirmation message to the queue.
*
* @param $observer Either a varien object or an event object, depending on where it's coming from
* @param $key Routing key to where the message will be published
* @param $type Content type of the message
*/
public function publishMessage($observer, $key, $type = "application/json")
{
//Converting observer to a proper order object
if ($observer instanceof Varien_Event_Observer) {
$order = $observer->getEvent()->getOrder();
} else {
if ($observer instanceof Varien_Object) {
$order = $observer;
}
}
//Set mqmodule_status to 0 - indicating confirmation has not been sent yet
$order->setMqmoduleStatus(0);
$msg_body = $this->orderToJSON($order);
extract($this->getConfigs());
try {
//Establishing connection and channel with appropriate configs
$conn = new PhpAmqpLib_Connection_AMQPConnection($host, $port, $user, $password, $vhost);
$ch = $conn->channel();
//Set up and send the message
$msg = new PhpAmqpLib_Message_AMQPMessage($msg_body, array('content_type' => $type, 'delivery_mode' => 2));
$ch->basic_publish($msg, $exchange, $key);
$order->setMqmoduleStatus(1);
//Closing the channel and connection
$ch->close();
$conn->close();
} catch (Exception $e) {
Mage::logException($e);
Mage::log("Order confirmation failed to publish - mqmodule_status still set to 0. ");
}
}
public function listen()
{
//Configs from RabbitMQ Module
extract(Mage::helper('mqmodule')->getConfigs());
if ($active == 1) {
$consumer_tag = 'consumer';
//create connection to rabbit and open a channel
$conn = new PhpAmqpLib_Connection_AMQPConnection($host, $port, $user, $password, $vhost);
$ch = $conn->channel();
//define channel and attach queue and exchange
$ch->queue_declare($queue, false, true, false, false);
$ch->exchange_declare($exchange, 'topic', false, true, false);
$ch->queue_bind($queue, $exchange);
register_shutdown_function('shutdown', $ch, $conn);
//create consumer on the queue that passes messages to callback function
$ch->basic_consume($queue, $consumer_tag, false, false, false, false, 'process_message');
while (count($ch->callbacks)) {
$ch->wait(null, false, 10);
}
$ch->basic_cancel($consumer_tag);
}
}
/**
* Initialize the lazy connection if not initialized yet
*/
private function initLazyConnection()
{
if (is_null($this->io)) {
parent::__construct($this->host, $this->port, $this->user, $this->password, $this->vhost, $this->insist, $this->login_method, $this->login_response, $this->locale, $this->connection_timeout, $this->read_write_timeout, $this->context);
}
}
