122 lines
2.8 KiB
PHP
122 lines
2.8 KiB
PHP
<?php
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/**
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; under version 2
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* of the License (non-upgradable).
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (c) 2017 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT);
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*
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*/
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namespace oat\taoTaskQueue\model\QueueBroker;
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use oat\tao\model\taskQueue\Queue\Broker\AbstractQueueBroker;
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use oat\tao\model\taskQueue\Task\TaskInterface;
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/**
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* Stores tasks in memory. It accomplishes Sync Queue mechanism.
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*
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* @deprecated Use \oat\tao\model\taskQueue\Queue\Broker\InMemoryQueueBroker
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*
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* @author Gyula Szucs <gyula@taotesting.com>
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*/
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class InMemoryQueueBroker extends AbstractQueueBroker implements SyncQueueBrokerInterface
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{
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/**
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* @var \SplQueue
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*/
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private $queue;
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/**
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* @return \SplQueue
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*/
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private function getQueue()
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{
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if (is_null($this->queue)) {
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$this->createQueue();
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}
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return $this->queue;
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}
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/**
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* Initiates the SplQueue
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*/
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public function createQueue()
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{
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$this->queue = new \SplQueue();
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$this->logDebug('Memory Queue created');
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}
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/**
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* @return int
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*/
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public function count()
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{
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return $this->getQueue()->count();
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}
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/**
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* @param TaskInterface $task
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* @return bool
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*/
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public function push(TaskInterface $task)
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{
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$this->getQueue()->enqueue($this->serializeTask($task));
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return true;
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}
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/**
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* Overwriting the parent totally because in this case we need a much simpler logic for popping messages.
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*
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* @return mixed|null
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*/
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public function pop()
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{
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if (!$this->count()) {
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return null;
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}
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$task = $this->getQueue()->dequeue();
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return $this->unserializeTask($task, '');
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}
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/**
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* Do nothing.
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*/
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protected function doPop()
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{
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}
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/**
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* Do nothing, because dequeue automatically deletes the message from the queue
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*
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* @param TaskInterface $task
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*/
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public function delete(TaskInterface $task)
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{
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}
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/**
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* Do nothing.
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*
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* @param string $receipt
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* @param array $logContext
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*/
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protected function doDelete($receipt, array $logContext = [])
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{
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}
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}
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