/**
* @param Envelope $envelope
* @return DeliveryResult
*/
protected function handleInternalMessage(Envelope $envelope) : DeliveryResult
{
if ('shutdown' === $envelope->getType()) {
$this->logger->info('Shutdown message received');
$this->shutdown();
$result = DeliveryResult::MSG_ACK();
} elseif ('reconfigure' === $envelope->getType()) {
$this->logger->info('Reconfigure message received');
try {
list($idleTimeout, $target, $prefetchSize, $prefetchCount) = json_decode($envelope->getBody());
if (is_numeric($idleTimeout)) {
$idleTimeout = (double) $idleTimeout;
}
Assertion::float($idleTimeout);
Assertion::min($target, 0);
Assertion::min($prefetchSize, 0);
Assertion::min($prefetchCount, 0);
} catch (\Throwable $e) {
$this->logger->error('Exception during reconfiguration: ' . $e->getMessage());
return DeliveryResult::MSG_REJECT();
}
$this->idleTimeout = $idleTimeout;
$this->target = $target;
$this->queue->getChannel()->qos($prefetchSize, $prefetchCount);
$this->blockSize = $prefetchCount;
$result = DeliveryResult::MSG_ACK();
} elseif ('ping' === $envelope->getType()) {
$this->logger->info('Ping message received');
$result = DeliveryResult::MSG_ACK();
} else {
$this->logger->error('Invalid internal message: ' . $envelope->getType());
$result = DeliveryResult::MSG_REJECT();
}
return $result;
}
/**
* @param Request $request
* @return array
*/
private function createAttributes(Request $request) : array
{
$attributes = ['content_type' => 'application/json', 'content_encoding' => 'UTF-8', 'delivery_mode' => 2, 'type' => $request->method(), 'timestamp' => $request->timestamp(), 'reply_to' => $this->queue->getName(), 'app_id' => $this->appId, 'user_id' => $this->queue->getConnection()->getOptions()->getLogin(), 'headers' => ['jsonrpc' => JsonRpcRequest::JSONRPC_VERSION]];
if (null !== $request->id()) {
$attributes['correlation_id'] = $request->id();
}
if (0 < $request->expiration()) {
$attributes['expiration'] = $request->expiration();
}
return $attributes;
}
/**
* Constructor
*
* @param Queue $queue
* @param callable(JsonRpcRequest):JsonRpcResponse $deliveryCallback
* @param LoggerInterface $logger
* @param float $idleTimeout in seconds
* @param string $consumerTag
* @param string $appId
*/
public function __construct(Queue $queue, callable $deliveryCallback, LoggerInterface $logger, float $idleTimeout, string $consumerTag = '', string $appId = '')
{
if ('' === $consumerTag) {
$consumerTag = bin2hex(random_bytes(24));
}
if (extension_loaded('pcntl')) {
declare (ticks=1);
$this->usePcntlSignalDispatch = true;
pcntl_signal(SIGTERM, [$this, 'shutdown']);
pcntl_signal(SIGINT, [$this, 'shutdown']);
pcntl_signal(SIGHUP, [$this, 'shutdown']);
}
$this->queue = $queue;
$this->exchange = $queue->getChannel()->newExchange();
$this->exchange->setType('direct');
$this->deliveryCallback = $deliveryCallback;
$this->logger = $logger;
$this->idleTimeout = $idleTimeout;
$this->consumerTag = $consumerTag;
$this->appId = $appId;
}
/**
* @param Queue $queue
* @param string $exchange
* @param array $routingKeys
* @param array $bindArguments
*/
private function bindQueue(Queue $queue, string $exchange, array $routingKeys, array $bindArguments)
{
if (empty($routingKeys)) {
$queue->bind($exchange, '', $bindArguments);
} else {
foreach ($routingKeys as $routingKey) {
$queue->bind($exchange, $routingKey, $bindArguments);
}
}
}