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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\MysqlMq\Model\ResourceModel;
use Magento\MysqlMq\Model\QueueManagement;
/**
* Resource model for queue.
*/
class Queue extends \Magento\Framework\Model\ResourceModel\Db\AbstractDb
{
/**
* Model initialization
*
* @return void
*/
protected function _construct()
{
$this->_init('queue', 'id');
}
/**
* Save message to 'queue_message' table.
*
* @param string $messageTopic
* @param string $messageBody
* @return int ID of the inserted record
*/
public function saveMessage($messageTopic, $messageBody)
{
$this->getConnection()->insert(
$this->getMessageTable(),
['topic_name' => $messageTopic, 'body' => $messageBody]
);
return $this->getConnection()->lastInsertId($this->getMessageTable());
}
/**
* Save messages in bulk to 'queue_message' table.
*
* @param string $messageTopic
* @param array $messages
* @return array List of IDs of inserted records
*/
public function saveMessages($messageTopic, array $messages)
{
$data = [];
foreach ($messages as $message) {
$data[] = ['topic_name' => $messageTopic, 'body' => $message];
}
$rowCount = $this->getConnection()->insertMultiple($this->getMessageTable(), $data);
$firstId = $this->getConnection()->lastInsertId($this->getMessageTable());
$select = $this->getConnection()->select()
->from(['qm' => $this->getMessageTable()], ['id'])
->where('qm.id >= ?', $firstId)
->limit($rowCount);
return $this->getConnection()->fetchCol($select);
}
/**
* Add associations between the specified message and queues.
*
* @param int $messageId
* @param string[] $queueNames
* @return $this
*/
public function linkQueues($messageId, $queueNames)
{
return $this->linkMessagesWithQueues([$messageId], $queueNames);
}
/**
* Add associations between the specified messages and queues.
*
* @param array $messageIds
* @param string[] $queueNames
* @return $this
*/
public function linkMessagesWithQueues(array $messageIds, array $queueNames)
{
$connection = $this->getConnection();
$queueIds = $this->getQueueIdsByNames($queueNames);
$data = [];
foreach ($messageIds as $messageId) {
foreach ($queueIds as $queueId) {
$data[] = [
$queueId,
$messageId,
QueueManagement::MESSAGE_STATUS_NEW
];
}
}
if (!empty($data)) {
$connection->insertArray(
$this->getMessageStatusTable(),
['queue_id', 'message_id', 'status'],
$data
);
}
return $this;
}
/**
* Retrieve array of queue IDs corresponding to the specified array of queue names.
*
* @param string[] $queueNames
* @return int[]
*/
protected function getQueueIdsByNames($queueNames)
{
$selectObject = $this->getConnection()->select();
$selectObject->from(['queue' => $this->getQueueTable()])
->columns(['id'])
->where('queue.name IN (?)', $queueNames);
return $this->getConnection()->fetchCol($selectObject);
}
/**
* Retrieve messages from the specified queue.
*
* @param string $queueName
* @param int|null $limit
* @return array
*/
public function getMessages($queueName, $limit = null)
{
$connection = $this->getConnection();
$select = $connection->select()
->from(
['queue_message' => $this->getMessageTable()],
[QueueManagement::MESSAGE_TOPIC => 'topic_name', QueueManagement::MESSAGE_BODY => 'body']
)->join(
['queue_message_status' => $this->getMessageStatusTable()],
'queue_message.id = queue_message_status.message_id',
[
QueueManagement::MESSAGE_QUEUE_RELATION_ID => 'id',
QueueManagement::MESSAGE_QUEUE_ID => 'queue_id',
QueueManagement::MESSAGE_ID => 'message_id',
QueueManagement::MESSAGE_STATUS => 'status',
QueueManagement::MESSAGE_UPDATED_AT => 'updated_at',
QueueManagement::MESSAGE_NUMBER_OF_TRIALS => 'number_of_trials'
]
)->join(
['queue' => $this->getQueueTable()],
'queue.id = queue_message_status.queue_id',
[QueueManagement::MESSAGE_QUEUE_NAME => 'name']
)->where(
'queue_message_status.status IN (?)',
[QueueManagement::MESSAGE_STATUS_NEW, QueueManagement::MESSAGE_STATUS_RETRY_REQUIRED]
)->where('queue.name = ?', $queueName)
->order(['queue_message_status.updated_at ASC', 'queue_message_status.id ASC']);
if ($limit) {
$select->limit($limit);
}
return $connection->fetchAll($select);
}
/**
* Delete messages if there is no queue whrere the message is not in status TO BE DELETED
*
* @return void
*/
public function deleteMarkedMessages()
{
$connection = $this->getConnection();
$select = $connection->select()
->from(['queue_message_status' => $this->getMessageStatusTable()], ['message_id'])
->where('status <> ?', QueueManagement::MESSAGE_STATUS_TO_BE_DELETED)
->distinct();
$messageIds = $connection->fetchCol($select);
$condition = count($messageIds) > 0 ? ['id NOT IN (?)' => $messageIds] : null;
$connection->delete($this->getMessageTable(), $condition);
}
/**
* Mark specified messages with 'in progress' status.
*
* @param int[] $relationIds
* @return int[] IDs of messages which should be taken in progress by current process.
*/
public function takeMessagesInProgress($relationIds)
{
$takenMessagesRelationIds = [];
foreach ($relationIds as $relationId) {
$affectedRows = $this->getConnection()->update(
$this->getMessageStatusTable(),
['status' => QueueManagement::MESSAGE_STATUS_IN_PROGRESS],
['id = ?' => $relationId]
);
if ($affectedRows) {
/**
* If status was set to 'in progress' by some other process (due to race conditions),
* current process should not process the same message.
* So message will be processed only if current process was able to change its status.
*/
$takenMessagesRelationIds[] = $relationId;
}
}
return $takenMessagesRelationIds;
}
/**
* Set status of message to 'retry required' and increment number of processing trials.
*
* @param int $relationId
* @return void
*/
public function pushBackForRetry($relationId)
{
$this->getConnection()->update(
$this->getMessageStatusTable(),
[
'status' => QueueManagement::MESSAGE_STATUS_RETRY_REQUIRED,
'number_of_trials' => new \Zend_Db_Expr('number_of_trials+1')
],
['id = ?' => $relationId]
);
}
/**
* Change message status.
*
* @param int[] $relationIds
* @param int $status
* @return void
*/
public function changeStatus($relationIds, $status)
{
$this->getConnection()->update(
$this->getMessageStatusTable(),
['status' => $status],
['id IN (?)' => $relationIds]
);
}
/**
* Get name of table storing message statuses and associations to queues.
*
* @return string
*/
protected function getMessageStatusTable()
{
return $this->getTable('queue_message_status');
}
/**
* Get name of table storing declared queues.
*
* @return string
*/
protected function getQueueTable()
{
return $this->getTable('queue');
}
/**
* Get name of table storing message body and topic.
*
* @return string
*/
protected function getMessageTable()
{
return $this->getTable('queue_message');
}
}