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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Queue
* @subpackage Adapter
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
/**
* @see Zend_Queue_Adapter_AdapterAbstract
*/
require_once 'Zend/Queue/Adapter/AdapterAbstract.php';
/**
* Zend Platform JobQueue adapter
*
* @category Zend
* @package Zend_Queue
* @subpackage Adapter
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Queue_Adapter_PlatformJobQueue extends Zend_Queue_Adapter_AdapterAbstract
{
/**
* @var ZendApi_JobQueue
*/
protected $_zendQueue;
/**
* Constructor
*
* @param array|Zend_Config $options
* @param Zend_Queue|null $queue
* @return void
*/
public function __construct($options, Zend_Queue $queue = null)
{
parent::__construct($options, $queue);
if (!extension_loaded("jobqueue_client")) {
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('Platform Job Queue extension does not appear to be loaded');
}
if (! isset($this->_options['daemonOptions'])) {
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('Job Queue host and password should be provided');
}
$options = $this->_options['daemonOptions'];
if (!array_key_exists('host', $options)) {
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('Platform Job Queue host should be provided');
}
if (!array_key_exists('password', $options)) {
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('Platform Job Queue password should be provided');
}
$this->_zendQueue = new ZendApi_Queue($options['host']);
if (!$this->_zendQueue) {
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('Platform Job Queue connection failed');
}
if (!$this->_zendQueue->login($options['password'])) {
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('Job Queue login failed');
}
if ($this->_queue) {
$this->_queue->setMessageClass('Zend_Queue_Message_PlatformJob');
}
}
/********************************************************************
* Queue management functions
********************************************************************/
/**
* Does a queue already exist?
*
* @param string $name
* @return boolean
* @throws Zend_Queue_Exception (not supported)
*/
public function isExists($name)
{
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('isExists() is not supported in this adapter');
}
/**
* Create a new queue
*
* @param string $name queue name
* @param integer $timeout default visibility timeout
* @return void
* @throws Zend_Queue_Exception
*/
public function create($name, $timeout=null)
{
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('create() is not supported in ' . get_class($this));
}
/**
* Delete a queue and all of its messages
*
* @param string $name queue name
* @return void
* @throws Zend_Queue_Exception
*/
public function delete($name)
{
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('delete() is not supported in ' . get_class($this));
}
/**
* Get an array of all available queues
*
* @return void
* @throws Zend_Queue_Exception
*/
public function getQueues()
{
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('getQueues() is not supported in this adapter');
}
/**
* Return the approximate number of messages in the queue
*
* @param Zend_Queue|null $queue
* @return integer
*/
public function count(Zend_Queue $queue = null)
{
if ($queue !== null) {
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('Queue parameter is not supported');
}
return $this->_zendQueue->getNumOfJobsInQueue();
}
/********************************************************************
* Messsage management functions
********************************************************************/
/**
* Send a message to the queue
*
* @param array | ZendAPI_job $message Message to send to the active queue
* @param Zend_Queue $queue Not supported
* @return Zend_Queue_Message
* @throws Zend_Queue_Exception
*/
public function send($message, Zend_Queue $queue = null)
{
if ($queue !== null) {
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('Queue parameter is not supported');
}
// This adapter can work only for this message type
$classname = $this->_queue->getMessageClass();
if (!class_exists($classname)) {
require_once 'Zend/Loader.php';
Zend_Loader::loadClass($classname);
}
if ($message instanceof ZendAPI_Job) {
$message = array('data' => $message);
}
$zendApiJob = new $classname($message);
// Unfortunately, the Platform JQ API is PHP4-style...
$platformJob = $zendApiJob->getJob();
$jobId = $this->_zendQueue->addJob($platformJob);
if (!$jobId) {
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('Failed to add a job to queue: '
. $this->_zendQueue->getLastError());
}
$zendApiJob->setJobId($jobId);
return $zendApiJob;
}
/**
* Get messages in the queue
*
* @param integer $maxMessages Maximum number of messages to return
* @param integer $timeout Ignored
* @param Zend_Queue $queue Not supported
* @throws Zend_Queue_Exception
* @return ArrayIterator
*/
public function receive($maxMessages = null, $timeout = null, Zend_Queue $queue = null)
{
if ($maxMessages === null) {
$maxMessages = 1;
}
if ($queue !== null) {
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('Queue shouldn\'t be set');
}
$jobs = $this->_zendQueue->getJobsInQueue(null, $maxMessages, true);
$classname = $this->_queue->getMessageClass();
if (!class_exists($classname)) {
require_once 'Zend/Loader.php';
Zend_Loader::loadClass($classname);
}
$options = array(
'queue' => $this->_queue,
'data' => $jobs,
'messageClass' => $this->_queue->getMessageClass(),
);
$classname = $this->_queue->getMessageSetClass();
if (!class_exists($classname)) {
require_once 'Zend/Loader.php';
Zend_Loader::loadClass($classname);
}
return new $classname($options);
}
/**
* Delete a message from the queue
*
* Returns true if the message is deleted, false if the deletion is
* unsuccessful.
*
* @param Zend_Queue_Message $message
* @return boolean
* @throws Zend_Queue_Exception
*/
public function deleteMessage(Zend_Queue_Message $message)
{
if (get_class($message) != $this->_queue->getMessageClass()) {
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception(
'Failed to remove job from the queue; only messages of type '
. 'Zend_Queue_Message_PlatformJob may be used'
);
}
return $this->_zendQueue->removeJob($message->getJobId());
}
public function isJobIdExist($id)
{
return (($this->_zendQueue->getJob($id))? true : false);
}
/********************************************************************
* Supporting functions
********************************************************************/
/**
* Return a list of queue capabilities functions
*
* $array['function name'] = true or false
* true is supported, false is not supported.
*
* @param string $name
* @return array
*/
public function getCapabilities()
{
return array(
'create' => false,
'delete' => false,
'getQueues' => false,
'isExists' => false,
'count' => true,
'send' => true,
'receive' => true,
'deleteMessage' => true,
);
}
/********************************************************************
* Functions that are not part of the Zend_Queue_Adapter_AdapterAbstract
********************************************************************/
/**
* Serialize
*
* @return array
*/
public function __sleep()
{
return array('_options');
}
/**
* Unserialize
*
* @return void
*/
public function __wakeup()
{
$options = $this->_options['daemonOptions'];
$this->_zendQueue = new ZendApi_Queue($options['host']);
if (!$this->_zendQueue) {
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('Platform Job Queue connection failed');
}
if (!$this->_zendQueue->login($options['password'])) {
require_once 'Zend/Queue/Exception.php';
throw new Zend_Queue_Exception('Job Queue login failed');
}
}
}
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