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<?php declare(strict_types=1); |
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/** |
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* This file is part of the ngutech/bitcoind-adapter project. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace NGUtech\Bitcoind\Message; |
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use BitWasp\Buffertools\Buffer; |
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use Daikon\AsyncJob\Worker\WorkerInterface; |
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use Daikon\Boot\Service\Provisioner\MessageBusProvisioner; |
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use Daikon\Interop\Assertion; |
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use Daikon\Interop\RuntimeException; |
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use Daikon\MessageBus\MessageBusInterface; |
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use Daikon\RabbitMq3\Connector\RabbitMq3Connector; |
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use Daikon\ValueObject\Timestamp; |
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use NGUtech\Bitcoin\Message\BitcoinBlockHashReceived; |
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use NGUtech\Bitcoin\Message\BitcoinMessageInterface; |
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use NGUtech\Bitcoin\Message\BitcoinTransactionHashReceived; |
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use PhpAmqpLib\Channel\AMQPChannel; |
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use PhpAmqpLib\Message\AMQPMessage; |
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use Psr\Log\LoggerInterface; |
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final class BitcoindMessageWorker implements WorkerInterface |
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{ |
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private const MESSAGE_BLOCK_HASH = 'bitcoind.message.hashblock'; |
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private const MESSAGE_TRANSACTION_HASH = 'bitcoind.message.hashtx'; |
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private RabbitMq3Connector $connector; |
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private MessageBusInterface $messageBus; |
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private LoggerInterface $logger; |
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private array $settings; |
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public function __construct( |
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RabbitMq3Connector $connector, |
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MessageBusInterface $messageBus, |
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LoggerInterface $logger, |
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array $settings = [] |
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) { |
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$this->connector = $connector; |
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$this->messageBus = $messageBus; |
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$this->logger = $logger; |
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$this->settings = $settings; |
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} |
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public function run(array $parameters = []): void |
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{ |
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$queue = $parameters['queue']; |
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Assertion::notBlank($queue); |
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$messageHandler = function (AMQPMessage $amqpMessage): void { |
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$this->execute($amqpMessage); |
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}; |
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/** @var AMQPChannel $channel */ |
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$channel = $this->connector->getConnection()->channel(); |
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$channel->basic_qos(0, 1, false); |
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$channel->basic_consume($queue, '', true, false, false, false, $messageHandler); |
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while (count($channel->callbacks)) { |
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$channel->wait(); |
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} |
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} |
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private function execute(AMQPMessage $amqpMessage): void |
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{ |
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try { |
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$message = $this->createMessage($amqpMessage); |
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if ($message instanceof BitcoinMessageInterface) { |
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$this->messageBus->publish($message, MessageBusProvisioner::EVENTS_CHANNEL); |
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} |
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$amqpMessage->ack(); |
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} catch (RuntimeException $error) { |
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$this->logger->error( |
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"Error handling bitcoind message '{$amqpMessage->getRoutingKey()}'.", |
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['exception' => $error->getTrace()] |
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); |
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$amqpMessage->nack(); |
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} |
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} |
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private function createMessage(AMQPMessage $amqpMessage): ?BitcoinMessageInterface |
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{ |
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$payload = [ |
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'hash' => (new Buffer($amqpMessage->body))->getHex(), |
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'receivedAt' => (string)Timestamp::fromTime($amqpMessage->get('timestamp')) |
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]; |
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switch ($amqpMessage->getRoutingKey()) { |
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case self::MESSAGE_TRANSACTION_HASH: |
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$message = BitcoinTransactionHashReceived::fromNative($payload); |
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break; |
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case self::MESSAGE_BLOCK_HASH: |
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$message = BitcoinBlockHashReceived::fromNative($payload); |
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break; |
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default: |
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// ignore unknown routing keys |
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} |
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return $message ?? null; |
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} |
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} |
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NGUtech /
bitcoind-adapter
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