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Merge pull request #492 from php-enqueue/amqp-subscription-consumers
Move subscription related logic to SubscriptionConsumer class.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| <?php | ||
|
|
||
| namespace Enqueue\AmqpBunny; | ||
|
|
||
| use Bunny\Channel; | ||
| use Bunny\Client; | ||
| use Bunny\Exception\ClientException; | ||
| use Bunny\Message; | ||
| use Enqueue\AmqpTools\SignalSocketHelper; | ||
| use Interop\Amqp\AmqpConsumer as InteropAmqpConsumer; | ||
| use Interop\Queue\Exception; | ||
| use Interop\Queue\PsrConsumer; | ||
| use Interop\Queue\PsrSubscriptionConsumer; | ||
|
|
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| class AmqpSubscriptionConsumer implements PsrSubscriptionConsumer | ||
| { | ||
| /** | ||
| * @var AmqpContext | ||
| */ | ||
| private $context; | ||
|
|
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| /** | ||
| * an item contains an array: [AmqpConsumerInterop $consumer, callable $callback];. | ||
| * | ||
| * @var array | ||
| */ | ||
| private $subscribers; | ||
|
|
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| public function __construct(AmqpContext $context) | ||
| { | ||
| $this->context = $context; | ||
|
|
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| $this->subscribers = []; | ||
| } | ||
|
|
||
| /** | ||
| * {@inheritdoc} | ||
| */ | ||
| public function consume($timeout = 0) | ||
| { | ||
| if (empty($this->subscribers)) { | ||
| throw new \LogicException('There is no subscribers. Consider calling basicConsumeSubscribe before consuming'); | ||
| } | ||
|
|
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| $signalHandler = new SignalSocketHelper(); | ||
| $signalHandler->beforeSocket(); | ||
|
|
||
| try { | ||
| $this->context->getBunnyChannel()->getClient()->run(0 !== $timeout ? $timeout / 1000 : null); | ||
| } catch (ClientException $e) { | ||
| if ('stream_select() failed.' == $e->getMessage() && $signalHandler->wasThereSignal()) { | ||
| return; | ||
| } | ||
|
|
||
| throw $e; | ||
| } finally { | ||
| $signalHandler->afterSocket(); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * @param AmqpConsumer $consumer | ||
| * | ||
| * {@inheritdoc} | ||
| */ | ||
| public function subscribe(PsrConsumer $consumer, callable $callback) | ||
| { | ||
| if (false == $consumer instanceof AmqpConsumer) { | ||
| throw new \InvalidArgumentException(sprintf('The consumer must be instance of "%s" got "%s"', AmqpConsumer::class, get_class($consumer))); | ||
| } | ||
|
|
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| if ($consumer->getConsumerTag() && array_key_exists($consumer->getConsumerTag(), $this->subscribers)) { | ||
| return; | ||
| } | ||
|
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| $bunnyCallback = function (Message $message, Channel $channel, Client $bunny) { | ||
| $receivedMessage = $this->context->convertMessage($message); | ||
| $receivedMessage->setConsumerTag($message->consumerTag); | ||
|
|
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| /** | ||
| * @var AmqpConsumer | ||
| * @var callable $callback | ||
| */ | ||
| list($consumer, $callback) = $this->subscribers[$message->consumerTag]; | ||
|
|
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| if (false === call_user_func($callback, $receivedMessage, $consumer)) { | ||
| $bunny->stop(); | ||
| } | ||
| }; | ||
|
|
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| $frame = $this->context->getBunnyChannel()->consume( | ||
| $bunnyCallback, | ||
| $consumer->getQueue()->getQueueName(), | ||
| $consumer->getConsumerTag(), | ||
| (bool) ($consumer->getFlags() & InteropAmqpConsumer::FLAG_NOLOCAL), | ||
| (bool) ($consumer->getFlags() & InteropAmqpConsumer::FLAG_NOACK), | ||
| (bool) ($consumer->getFlags() & InteropAmqpConsumer::FLAG_EXCLUSIVE), | ||
| (bool) ($consumer->getFlags() & InteropAmqpConsumer::FLAG_NOWAIT) | ||
| ); | ||
|
|
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| if (empty($frame->consumerTag)) { | ||
| throw new Exception('Got empty consumer tag'); | ||
| } | ||
|
|
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| $consumer->setConsumerTag($frame->consumerTag); | ||
|
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| $this->subscribers[$frame->consumerTag] = [$consumer, $callback]; | ||
| } | ||
|
|
||
| /** | ||
| * @param AmqpConsumer $consumer | ||
| * | ||
| * {@inheritdoc} | ||
| */ | ||
| public function unsubscribe(PsrConsumer $consumer) | ||
| { | ||
| if (false == $consumer instanceof AmqpConsumer) { | ||
| throw new \InvalidArgumentException(sprintf('The consumer must be instance of "%s" got "%s"', AmqpConsumer::class, get_class($consumer))); | ||
| } | ||
|
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| if (false == $consumer->getConsumerTag()) { | ||
| return; | ||
| } | ||
|
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| $consumerTag = $consumer->getConsumerTag(); | ||
|
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| $this->context->getBunnyChannel()->cancel($consumerTag); | ||
| $consumer->setConsumerTag(null); | ||
| unset($this->subscribers[$consumerTag]); | ||
| } | ||
|
|
||
| /** | ||
| * {@inheritdoc} | ||
| */ | ||
| public function unsubscribeAll() | ||
| { | ||
| foreach ($this->subscribers as list($consumer)) { | ||
| $this->unsubscribe($consumer); | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| <?php | ||
|
|
||
| namespace Enqueue\AmqpBunny\Tests; | ||
|
|
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| use Enqueue\AmqpBunny\AmqpContext; | ||
| use Enqueue\AmqpBunny\AmqpSubscriptionConsumer; | ||
| use Interop\Queue\PsrSubscriptionConsumer; | ||
| use PHPUnit\Framework\TestCase; | ||
|
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| class AmqpSubscriptionConsumerTest extends TestCase | ||
| { | ||
| public function testShouldImplementPsrSubscriptionConsumerInterface() | ||
| { | ||
| $rc = new \ReflectionClass(AmqpSubscriptionConsumer::class); | ||
|
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| $this->assertTrue($rc->implementsInterface(PsrSubscriptionConsumer::class)); | ||
| } | ||
|
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| public function testCouldBeConstructedWithAmqpContextAsFirstArgument() | ||
| { | ||
| new AmqpSubscriptionConsumer($this->createAmqpContextMock()); | ||
| } | ||
|
|
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| /** | ||
| * @return AmqpContext|\PHPUnit_Framework_MockObject_MockObject | ||
| */ | ||
| private function createAmqpContextMock() | ||
| { | ||
| return $this->createMock(AmqpContext::class); | ||
| } | ||
| } |
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