mirror of
https://github.com/Icinga/icingaweb2.git
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355 lines
9.9 KiB
PHP
355 lines
9.9 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Queue
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* @subpackage Adapter
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* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id$
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*/
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/**
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* @see Zend_Queue_Adapter_AdapterAbstract
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*/
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/**
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* @see Zend_Queue_Adapter_Stomp_Client
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*/
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/**
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* @see Zend_Queue_Adapter_Stomp_Frame
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*/
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/**
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* Class for using Stomp to talk to an Stomp compliant server
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*
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* @category Zend
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* @package Zend_Queue
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* @subpackage Adapter
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* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Queue_Adapter_Activemq extends Zend_Queue_Adapter_AdapterAbstract
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{
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const DEFAULT_SCHEME = 'tcp';
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const DEFAULT_HOST = '127.0.0.1';
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const DEFAULT_PORT = 61613;
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/**
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* @var Zend_Queue_Adapter_Stomp_client
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*/
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private $_client = null;
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/**
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* @var array
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*/
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private $_subscribed = array();
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/**
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* Constructor
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*
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* @param array|Zend_Config $config An array having configuration data
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* @param Zend_Queue The Zend_Queue object that created this class
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* @return void
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*/
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public function __construct($options, Zend_Queue $queue = null)
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{
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parent::__construct($options);
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$options = &$this->_options['driverOptions'];
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if (!array_key_exists('scheme', $options)) {
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$options['scheme'] = self::DEFAULT_SCHEME;
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}
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if (!array_key_exists('host', $options)) {
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$options['host'] = self::DEFAULT_HOST;
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}
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if (!array_key_exists('port', $options)) {
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$options['port'] = self::DEFAULT_PORT;
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}
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if (array_key_exists('stompClient', $options)) {
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$this->_client = $options['stompClient'];
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} else {
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$this->_client = new Zend_Queue_Stomp_Client($options['scheme'], $options['host'], $options['port']);
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}
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$connect = $this->_client->createFrame();
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// Username and password are optional on some messaging servers
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// such as Apache's ActiveMQ
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$connect->setCommand('CONNECT');
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if (isset($options['username'])) {
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$connect->setHeader('login', $options['username']);
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$connect->setHeader('passcode', $options['password']);
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}
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$response = $this->_client->send($connect)->receive();
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if ((false !== $response)
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&& ($response->getCommand() != 'CONNECTED')
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) {
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throw new Zend_Queue_Exception("Unable to authenticate to '".$options['scheme'].'://'.$options['host'].':'.$options['port']."'");
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}
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}
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/**
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* Close the socket explicitly when destructed
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*
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* @return void
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*/
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public function __destruct()
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{
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// Gracefully disconnect
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$frame = $this->_client->createFrame();
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$frame->setCommand('DISCONNECT');
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$this->_client->send($frame);
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unset($this->_client);
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}
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/**
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* Create a new queue
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*
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* @param string $name queue name
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* @param integer $timeout default visibility timeout
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* @return void
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* @throws Zend_Queue_Exception
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*/
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public function create($name, $timeout=null)
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{
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throw new Zend_Queue_Exception('create() is not supported in ' . get_class($this));
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}
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/**
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* Delete a queue and all of its messages
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*
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* @param string $name queue name
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* @return void
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* @throws Zend_Queue_Exception
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*/
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public function delete($name)
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{
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throw new Zend_Queue_Exception('delete() is not supported in ' . get_class($this));
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}
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/**
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* Delete a message from the queue
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*
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* Returns true if the message is deleted, false if the deletion is
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* unsuccessful.
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*
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* @param Zend_Queue_Message $message
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* @return boolean
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*/
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public function deleteMessage(Zend_Queue_Message $message)
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{
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$frame = $this->_client->createFrame();
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$frame->setCommand('ACK');
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$frame->setHeader('message-id', $message->handle);
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$this->_client->send($frame);
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return true;
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}
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/**
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* Get an array of all available queues
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*
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* @return void
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* @throws Zend_Queue_Exception
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*/
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public function getQueues()
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{
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throw new Zend_Queue_Exception('getQueues() is not supported in this adapter');
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}
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/**
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* Checks if the client is subscribed to the queue
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*
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* @param Zend_Queue $queue
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* @return boolean
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*/
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protected function _isSubscribed(Zend_Queue $queue)
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{
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return isset($this->_subscribed[$queue->getName()]);
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}
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/**
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* Subscribes the client to the queue.
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*
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* @param Zend_Queue $queue
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* @return void
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*/
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protected function _subscribe(Zend_Queue $queue)
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{
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$frame = $this->_client->createFrame();
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$frame->setCommand('SUBSCRIBE');
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$frame->setHeader('destination', $queue->getName());
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$frame->setHeader('ack', 'client');
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$this->_client->send($frame);
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$this->_subscribed[$queue->getName()] = true;
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}
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/**
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* Return the first element in the queue
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*
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* @param integer $maxMessages
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* @param integer $timeout
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* @param Zend_Queue $queue
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* @return Zend_Queue_Message_Iterator
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*/
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public function receive($maxMessages=null, $timeout=null, Zend_Queue $queue=null)
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{
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if ($maxMessages === null) {
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$maxMessages = 1;
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}
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if ($timeout === null) {
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$timeout = self::RECEIVE_TIMEOUT_DEFAULT;
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}
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if ($queue === null) {
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$queue = $this->_queue;
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}
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// read
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$data = array();
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// signal that we are reading
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if (!$this->_isSubscribed($queue)){
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$this->_subscribe($queue);
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}
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if ($maxMessages > 0) {
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if ($this->_client->canRead()) {
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for ($i = 0; $i < $maxMessages; $i++) {
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$response = $this->_client->receive();
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switch ($response->getCommand()) {
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case 'MESSAGE':
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$datum = array(
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'message_id' => $response->getHeader('message-id'),
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'handle' => $response->getHeader('message-id'),
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'body' => $response->getBody(),
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'md5' => md5($response->getBody())
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);
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$data[] = $datum;
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break;
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default:
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$block = print_r($response, true);
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throw new Zend_Queue_Exception('Invalid response received: ' . $block);
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}
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}
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}
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}
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$options = array(
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'queue' => $queue,
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'data' => $data,
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'messageClass' => $queue->getMessageClass()
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);
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$classname = $queue->getMessageSetClass();
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if (!class_exists($classname)) {
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Zend_Loader::loadClass($classname);
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}
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return new $classname($options);
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}
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/**
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* Push an element onto the end of the queue
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*
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* @param string $message message to send to the queue
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* @param Zend_Queue $queue
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* @return Zend_Queue_Message
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*/
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public function send($message, Zend_Queue $queue=null)
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{
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if ($queue === null) {
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$queue = $this->_queue;
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}
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$frame = $this->_client->createFrame();
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$frame->setCommand('SEND');
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$frame->setHeader('destination', $queue->getName());
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$frame->setHeader('content-length', strlen($message));
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$frame->setBody((string) $message);
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$this->_client->send($frame);
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$data = array(
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'message_id' => null,
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'body' => $message,
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'md5' => md5($message),
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'handle' => null
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);
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$options = array(
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'queue' => $queue,
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'data' => $data
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);
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$classname = $queue->getMessageClass();
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if (!class_exists($classname)) {
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Zend_Loader::loadClass($classname);
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}
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return new $classname($options);
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}
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/**
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* Returns the length of the queue
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*
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* @param Zend_Queue $queue
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* @return integer
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* @throws Zend_Queue_Exception (not supported)
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*/
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public function count(Zend_Queue $queue=null)
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{
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throw new Zend_Queue_Exception('count() is not supported in this adapter');
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}
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/**
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* Does a queue already exist?
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*
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* @param string $name
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* @return boolean
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* @throws Zend_Queue_Exception (not supported)
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*/
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public function isExists($name)
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{
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throw new Zend_Queue_Exception('isExists() is not supported in this adapter');
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}
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/**
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* Return a list of queue capabilities functions
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*
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* $array['function name'] = true or false
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* true is supported, false is not supported.
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*
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* @param string $name
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* @return array
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*/
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public function getCapabilities()
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{
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return array(
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'create' => false,
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'delete' => false,
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'send' => true,
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'receive' => true,
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'deleteMessage' => true,
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'getQueues' => false,
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'count' => false,
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'isExists' => false,
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);
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}
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}
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