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<?php |
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/** |
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* @license LGPLv3, https://opensource.org/licenses/LGPL-3.0 |
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* @copyright Aimeos (aimeos.org), 2016-2022 |
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* @package Base |
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* @subpackage MQueue |
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*/ |
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namespace Aimeos\Base\MQueue; |
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/** |
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* Default message queue implementation |
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* |
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* @package Base |
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* @subpackage MQueue |
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*/ |
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class Standard extends Base implements Iface |
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{ |
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private $conn; |
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private $queues = []; |
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/** |
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* Initializes the message queue object |
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* |
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* @param array $config Associative list of configuration key/value pairs |
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*/ |
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public function __construct( array $config ) |
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{ |
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parent::__construct( $config ); |
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try { |
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$this->conn = new \Aimeos\Base\DB\Connection\PDO( $config['db'] ?? [] ); |
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} catch( \Aimeos\Base\DB\Exception $e ) { |
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throw new \Aimeos\Base\MQueue\Exception( $e->getMessage(), -1, $e ); |
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} |
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} |
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/** |
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* Returns the queue for the given name |
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* |
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* @param string $name Queue name |
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* @return \Aimeos\Base\MQueue\Queue\Iface Message queue |
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*/ |
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public function getQueue( string $name ) : \Aimeos\Base\MQueue\Queue\Iface |
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{ |
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if( !isset( $this->queues[$name] ) ) |
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{ |
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$adapter = $this->config( 'db/adapter' ); |
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$sql = array( |
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'insert' => $this->config( 'sql/insert', ' |
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INSERT INTO madmin_queue (queue, cname, rtime, message) VALUES (?, ?, ?, ?) |
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' ), |
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'reserve' => $this->config( 'sql/reserve', $adapter !== 'mysql' ? ' |
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UPDATE madmin_queue SET cname = ?, rtime = ? WHERE id IN ( |
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SELECT id FROM ( |
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SELECT id FROM madmin_queue WHERE queue = ? AND rtime < ? |
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ORDER BY id OFFSET 0 ROWS FETCH NEXT 1 ROWS ONLY |
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) AS t |
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) |
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' : ' |
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UPDATE madmin_queue SET cname = ?, rtime = ? WHERE id IN ( |
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SELECT id FROM ( |
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SELECT id FROM madmin_queue WHERE queue = ? AND rtime < ? ORDER BY id LIMIT 1 |
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) AS t |
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) |
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' ), |
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'get' => $this->config( 'sql/get', $adapter !== 'mysql' ? ' |
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SELECT * FROM madmin_queue WHERE queue = ? AND cname = ? AND rtime = ? |
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ORDER BY id OFFSET 0 ROWS FETCH NEXT 1 ROWS ONLY |
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' : ' |
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SELECT * FROM madmin_queue WHERE queue = ? AND cname = ? AND rtime = ? ORDER BY id LIMIT 1 |
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' ), |
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'delete' => $this->config( 'sql/delete', ' |
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DELETE FROM madmin_queue WHERE id = ? AND queue = ? |
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' ), |
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); |
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$rtime = $this->config( 'releasetime', 60 ); |
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$this->queues[$name] = new \Aimeos\Base\MQueue\Queue\Standard( $this->conn, $name, $sql, $rtime ); |
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} |
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return $this->queues[$name]; |
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} |
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} |
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aimeos /
aimeos-base
