* * @property AMQPStreamConnection $connection AMQP connection. * @property AMQPChannel $channel AMQP channel. */ class Component extends \yii\base\Component { const TYPE_TOPIC = 'topic'; const TYPE_DIRECT = 'direct'; const TYPE_HEADERS = 'headers'; const TYPE_FANOUT = 'fanout'; /** * @var AMQPStreamConnection */ protected $amqpConnection; /** * @var AMQPChannel[] */ protected $channels = []; /** * @var string */ public $host = '127.0.0.1'; /** * @var integer */ public $port = 5672; /** * @var string */ public $user; /** * @var string */ public $password; /** * @var string */ public $vhost = '/'; /** * @inheritdoc */ public function init() { parent::init(); if (empty($this->user)) { throw new Exception("Parameter 'user' was not set for AMQP connection."); } } /** * @return AMQPStreamConnection */ public function getConnection() { if (!$this->amqpConnection) { $this->amqpConnection = new AMQPStreamConnection( $this->host, $this->port, $this->user, $this->password, $this->vhost ); } return $this->amqpConnection; } /** * @param string $channel_id * @return AMQPChannel */ public function getChannel($channel_id = null) { $index = $channel_id ?: 'default'; if (!array_key_exists($index, $this->channels)) { $this->channels[$index] = $this->getConnection()->channel($channel_id); } return $this->channels[$index]; } // TODO: метод sendToQueue /** * Sends message to the exchange. * * @param string $exchangeName * @param string $routingKey * @param string|array $message * @param array $exchangeArgs * @param array $publishArgs */ public function sendToExchange($exchangeName, $routingKey, $message, $exchangeArgs = [], $publishArgs = []) { $message = $this->prepareMessage($message); $channel = $this->getChannel(); call_user_func_array([$channel, 'exchange_declare'], $this->prepareExchangeArgs($exchangeName, $exchangeArgs)); call_user_func_array([$channel, 'basic_publish'], $this->preparePublishArgs($message, $exchangeName, $routingKey, $publishArgs)); } /** * Объединяет переданный набор аргументов с поведением по умолчанию * * @param string $exchangeName * @param array $args * @return array */ protected function prepareExchangeArgs($exchangeName, array $args) { return array_replace([ $exchangeName, self::TYPE_FANOUT, false, false, false, ], $args); } /** * Объединяет переданный набор аргументов с поведением по умолчанию * * @param AMQPMessage $message * @param string $exchangeName * @param string $routeKey * @param array $args * * @return array */ protected function preparePublishArgs($message, $exchangeName, $routeKey, array $args) { return array_replace([ $message, $exchangeName, $routeKey, ], $args); } /** * Returns prepaired AMQP message. * * @param string|array|object $message * @param array $properties * @return AMQPMessage * @throws Exception If message is empty. */ public function prepareMessage($message, $properties = null) { if ($message instanceof AMQPMessage) { return $message; } if (empty($message)) { throw new Exception('AMQP message can not be empty'); } if (is_array($message) || is_object($message)) { $message = Json::encode($message); } return new AMQPMessage($message, $properties); } }