Set the number of messages to prefetch from the broker during a call to
AMQPQueue::consume() or AMQPQueue::get(). Any call to this method will
automatically set the prefetch window size to 0, meaning that the
prefetch window size setting will be ignored.
| public setPrefetchCount ( integer $count ) : boolean | ||
| $count | integer | The number of messages to prefetch. |
| 리턴 | boolean | TRUE on success or FALSE on failure. |
/**
* @param $count
*
* @return bool
*/
public function setPrefetchCount($count)
{
try {
return $this->rawChannel->setPrefetchCount($count);
} catch (\AMQPConnectionException $e) {
ClientHelper::throwRightException($e);
}
}
/**
* @return \AMQPChannel
*/
protected function getChannel()
{
if ($this->channel === null) {
$this->channel = new \AMQPChannel($this->getConnection());
$this->channel->setPrefetchCount(1);
}
return $this->channel;
}
/**
* Initialize if not yet initialized and return channel to AMQP broker
*
* @return \AMQPChannel
*
* @throws ConnectionException
*/
private function getChannel()
{
if ($this->channel && $this->channel->isConnected()) {
return $this->channel;
}
try {
$this->channel = null;
if ($this->connection->isConnected()) {
$this->connection->disconnect();
}
$this->connection->connect();
$channel = new \AMQPChannel($this->connection);
$channel->setPrefetchCount(self::DEFAULT_PREFETCH_COUNT);
} catch (\AMQPException $e) {
throw new ConnectionException(sprintf('AMQP connection error (%s:%s): %s', $this->connection->getHost(), $this->connection->getPort(), $e->getMessage()));
}
return $this->channel = $channel;
}
<?php
/**
* Created by PhpStorm.
* User: seyfer
* Date: 11/23/15
*/
//Establish connection to AMQP
$connection = new AMQPConnection();
$connection->setHost('127.0.0.1');
$connection->setLogin('guest');
$connection->setPassword('guest');
$connection->connect();
//Create and declare channel
$channel = new AMQPChannel($connection);
$channel->setPrefetchCount(1);
$routing_key = 'task_queue';
try {
$queue = new AMQPQueue($channel);
$queue->setName($routing_key);
$queue->setFlags(AMQP_DURABLE);
$queue->declareQueue();
} catch (Exception $ex) {
print_r($ex);
}
//Read from stdin
$message = implode(' ', array_slice($argv, 1));
if (empty($message)) {
$message = "Hello World!";
}
$exchange = new AMQPExchange($channel);
/**
* @inheritdoc
*/
public function setPrefetchCount(int $count)
{
$this->channel->setPrefetchCount($count);
}
/**
* Get connection
*
* @param string $name Connection name
*
* @return array Return connection and channel
*/
protected function getConnection($name)
{
if (isset($this->connections[$name])) {
return $this->connections[$name];
}
$config = $this->getConfig('connection', $name);
if (null == $config) {
throw new \InvalidArgumentException("Connection '{$name}' doesn't exists.");
}
$connection = new \AMQPConnection($config);
$connection->connect();
$channel = new \AMQPChannel($connection);
if (isset($config['prefetch_count'])) {
$channel->setPrefetchCount($config['prefetch_count']);
}
return $this->connections[$name] = ['connection' => $connection, 'channel' => $channel];
}
$container->bind('parsley.brokers.rabbitmq.listener', 'AMQPy\\Listener', true);
$container->bind('AMQPy\\Serializers\\SerializersPool', function ($container) {
$serializers_pool = new \AMQPy\Serializers\SerializersPool();
$serializers_pool->register($container['config']->get('parsley.amqpy.serializers', []));
return $serializers_pool;
}, true);
$container->bind('AMQPConnection', function ($container) {
$connection = new AMQPConnection($container['config']->get('parsley.amqpy.credentials', []));
$connection->connect();
return $connection;
}, true);
$container->bind('AMQPChannel', function ($container) {
$ch = new AMQPChannel($container->make('AMQPConnection'));
$qos = $container['config']->get('parsley.amqpy.qos');
if ($qos != null) {
$ch->setPrefetchCount($qos);
}
return $ch;
}, true);
$container->bind('AMQPExchange', function ($container) {
/** @var AMQPExchange $exchange */
$exchange = new AMQPExchange($container->make('AMQPChannel'));
$exchange->setName($container['config']->get('parsley.amqpy.exchange', 'parsley'));
$exchange->setType($container['config']->get('parsley.amqpy.exchange_type', AMQP_EX_TYPE_TOPIC));
$exchange->declareExchange();
return $exchange;
}, true);
$container->bind('AMQPQueue', function ($container) {
/** @var AMQPQueue $queue */
$queue = new AMQPQueue($container->make('AMQPChannel'));
/** @var \Illuminate\Config\Repository $config */
/**
* Declare Channel
*/
protected function setChannel()
{
$this->channel = new AMQPChannel($this->connection);
$this->channel->setPrefetchCount(1);
}
