Examples with DeliverCallback com.rabbitmq.client.DeliverCallback used on opensource projects

Example 41 with DeliverCallback

use of com.rabbitmq.client.DeliverCallback in project rabbitmq-tutorials by rabbitmq.

the class ReceiveLogsTopic method main.

public static void main(String[] argv) throws Exception {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();
    channel.exchangeDeclare(EXCHANGE_NAME, "topic");
    String queueName = channel.queueDeclare().getQueue();
    if (argv.length < 1) {
        System.err.println("Usage: ReceiveLogsTopic [binding_key]...");
        System.exit(1);
    }
    for (String bindingKey : argv) {
        channel.queueBind(queueName, EXCHANGE_NAME, bindingKey);
    }
    System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
    DeliverCallback deliverCallback = (consumerTag, delivery) -> {
        String message = new String(delivery.getBody(), "UTF-8");
        System.out.println(" [x] Received '" + delivery.getEnvelope().getRoutingKey() + "':'" + message + "'");
    };
    channel.basicConsume(queueName, true, deliverCallback, consumerTag -> {
    });
}

Example 42 with DeliverCallback

use of com.rabbitmq.client.DeliverCallback in project rabbitmq-tutorials by rabbitmq.

the class Worker method main.

public static void main(String[] argv) throws Exception {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    final Connection connection = factory.newConnection();
    final Channel channel = connection.createChannel();
    channel.queueDeclare(TASK_QUEUE_NAME, true, false, false, null);
    System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
    channel.basicQos(1);
    DeliverCallback deliverCallback = (consumerTag, delivery) -> {
        String message = new String(delivery.getBody(), "UTF-8");
        System.out.println(" [x] Received '" + message + "'");
        try {
            doWork(message);
        } finally {
            System.out.println(" [x] Done");
            channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
        }
    };
    channel.basicConsume(TASK_QUEUE_NAME, false, deliverCallback, consumerTag -> {
    });
}

Example 43 with DeliverCallback

use of com.rabbitmq.client.DeliverCallback in project quarkus-quickstarts by quarkusio.

the class QuoteProcessorTest method testProcessor.

@Test
void testProcessor() throws Exception {
    String quoteId = UUID.randomUUID().toString();
    Channel channel = getChannel();
    channel.exchangeDeclare("quotes", TOPIC, true, false, Map.of());
    String queue = channel.queueDeclare("quotes", true, false, false, Map.of()).getQueue();
    channel.queueBind(queue, "quotes", "#");
    AtomicReference<Quote> receivedQuote = new AtomicReference<>(null);
    DeliverCallback deliverCallback = (consumerTag, message) -> {
        Quote quote = objectMapper.readValue(message.getBody(), Quote.class);
        if (!Objects.equals(quote.id, quoteId)) {
            return;
        }
        receivedQuote.set(quote);
    };
    String consumerTag = channel.basicConsume(queue, true, deliverCallback, tag -> {
    });
    AMQP.BasicProperties props = new AMQP.BasicProperties.Builder().contentType("text/plain").build();
    channel.basicPublish("quote-requests", quoteId, props, quoteId.getBytes(UTF_8));
    await().atMost(3, SECONDS).untilAtomic(receivedQuote, notNullValue());
    channel.basicCancel(consumerTag);
}

Example 44 with DeliverCallback

use of com.rabbitmq.client.DeliverCallback in project mt-auth by publicdevop2019.

the class RabbitMQEventStreamService method subscribe.

@Override
public void subscribe(String subscribedApplicationName, boolean internal, @Nullable String fixedQueueName, Consumer<StoredEvent> consumer, String... topics) {
    String routingKeyWithoutTopic = subscribedApplicationName + "." + (internal ? "internal" : "external") + ".";
    String queueName;
    if (fixedQueueName != null) {
        queueName = fixedQueueName;
    } else {
        long id = CommonDomainRegistry.getUniqueIdGeneratorService().id();
        queueName = Long.toString(id, 36);
    }
    DeliverCallback deliverCallback = (consumerTag, delivery) -> {
        log.trace("mq message received");
        String s = new String(delivery.getBody(), StandardCharsets.UTF_8);
        StoredEvent event = CommonDomainRegistry.getCustomObjectSerializer().deserialize(s, StoredEvent.class);
        log.debug("handling {} with id {}", ClassUtility.getShortName(event.getName()), event.getId());
        try {
            consumer.accept(event);
        } catch (Exception ex) {
            log.error("error during consume, catch error to maintain connection", ex);
        }
        log.trace("mq message consumed");
    };
    try {
        Channel channel = connectionSub.createChannel();
        channel.queueDeclare(queueName, true, false, false, null);
        checkExchange(channel);
        for (String topic : topics) {
            channel.queueBind(queueName, EXCHANGE_NAME, routingKeyWithoutTopic + topic);
        }
        channel.basicConsume(queueName, true, deliverCallback, consumerTag -> {
        });
    } catch (IOException e) {
        log.error("unable create queue for {} with routing key {} and queue name {}", subscribedApplicationName, routingKeyWithoutTopic, queueName, e);
    }
}

Example 45 with DeliverCallback

use of com.rabbitmq.client.DeliverCallback in project Iot-now-start by Dongboy111.

the class Work01 method main.

public static void main(String[] args) throws IOException, TimeoutException {
    Channel channel = RabbitMqUtils.getChannel();
    // 声明接受消息
    DeliverCallback deliverCallback = (consumerTag, message) -> {
        System.out.println("接受到的消息：" + new String(message.getBody()));
    };
    // 取消消息消费
    CancelCallback cancelCallback = cousumerTag -> {
        System.out.println("消费被中断");
    };
    System.out.println("C2等到接收消息，，，，");
    channel.basicConsume(QUEUE_NAME, true, deliverCallback, cancelCallback);
// 不关闭的话一直等待
}