/**
* Get messages in the queue
*
* @param QueueInterface $queue
* @param integer $maxMessages Maximum number of messages to return
* @param ReceiveParametersInterface $params
* @return MessageIterator
*/
public function receiveMessages(QueueInterface $queue, $maxMessages = null, ReceiveParametersInterface $params = null)
{
if ($maxMessages === null) {
$maxMessages = 1;
}
$timeout = $params ? $params->getVisibilityTimeout() : null;
$filter = $params ? $params->getClassFilter() : null;
$peek = $params ? $params->getPeekMode() : false;
$microtime = (int) microtime(true);
$data = [];
if ($maxMessages > 0) {
$count = 0;
$temp =& $this->data[$queue->getName()];
foreach ($temp as $messageId => &$msg) {
if (null !== $filter && $msg['class'] != $filter) {
continue;
}
if (isset($msg['schedule']) && $microtime < $msg['schedule']) {
continue;
}
if ($msg['handle'] === null || $msg['timeout'] !== null && $msg['timeout'] < $microtime) {
if ($peek) {
$msg['handle'] = null;
$msg['timeout'] = null;
} else {
$msg['handle'] = md5(uniqid(rand(), true));
$msg['timeout'] = $timeout ? $microtime + $timeout : null;
}
$msg['metadata'][$queue->getOptions()->getMessageMetadatumKey()] = $this->buildMessageInfo($msg['handle'], $messageId, $queue, [SendParametersInterface::SCHEDULE => isset($msg['schedule']) ? $msg['schedule'] : null, SendParametersInterface::REPEATING_INTERVAL => isset($msg['interval']) ? $msg['interval'] : null]);
$data[] = $msg;
++$count;
}
if ($count >= $maxMessages) {
break;
}
}
}
$classname = $queue->getOptions()->getMessageSetClass();
return new $classname($data, $queue);
}
/**
* @param Queue $queue
* @param MessageInterface $message
* @return void
*/
protected function cleanMessageInfo(Queue $queue, MessageInterface $message)
{
$metadatumKey = $queue->getOptions()->getMessageMetadatumKey();
if ($message->getMetadata($metadatumKey)) {
$message->setMetadata($metadatumKey, null);
}
}
