Package com.rabbitmq.client

Examples of com.rabbitmq.client.QueueingConsumer.nextDelivery()

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        setResourceAlarm("disk");
        assertNull(c.nextDelivery(100));
        clearResourceAlarm("memory");
        assertNull(c.nextDelivery(100));
        clearResourceAlarm("disk");
        assertNotNull(c.nextDelivery(3100));

        channel.basicCancel(consumerTag);
        basicPublishVolatile(Q);
        assertNotNull(basicGet(Q));
    }
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            ch.queueDeclare(queueName, false, false, false, null);

            QueueingConsumer consumer = new QueueingConsumer(ch);
            ch.basicConsume(queueName, consumer);
            while (true) {
                QueueingConsumer.Delivery delivery = consumer.nextDelivery();
                System.out.println("Message: " + new String(delivery.getBody()));
                ch.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
            }
        } catch (Exception ex) {
            System.err.println("Main thread caught exception: " + ex);
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                               " from queue " + queue);

            QueueingConsumer consumer = new QueueingConsumer(channel);
            channel.basicConsume(queue, consumer);
            while (true) {
                QueueingConsumer.Delivery delivery = consumer.nextDelivery();
                Envelope envelope = delivery.getEnvelope();
                System.out.println(envelope.getRoutingKey() + ": " + new String(delivery.getBody()));
                channel.basicAck(envelope.getDeliveryTag(), false);
            }
        } catch (Exception ex) {
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        //measure round-trip latency
        QueueingConsumer c = new QueueingConsumer(channel);
        String cTag = channel.basicConsume(TEST_QUEUE_NAME, true, c);
        long start = System.currentTimeMillis();
        publish(null, "test");
        Delivery d = c.nextDelivery(TTL);
        long stop = System.currentTimeMillis();
        assertNotNull(d);
        channel.basicCancel(cTag);
        long latency = stop-start;
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        fill(1);
        QueueingConsumer c2 = new QueueingConsumer(channel);
        declareBindConsume(channel, c2, true);
        fill(1);
        try {
            Delivery d = c2.nextDelivery(1000);
            assertNull(d);
        } catch (InterruptedException ie) {
            fail("interrupted");
        }
        List<Delivery> d = drain(c1, 1);
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        counts.put("c1", 0);
        counts.put("c2", 0);
        fill(count);
        try {
            for (int i = 0; i < count; i++) {
                Delivery d = c.nextDelivery();
                channel.basicAck(d.getEnvelope().getDeliveryTag(), false);
            }
        } catch (InterruptedException ie) {
            fail("interrupted");
        }
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    void verifyRedeliverOnRecover(RecoverCallback call)
        throws IOException, InterruptedException {
        QueueingConsumer consumer = new QueueingConsumer(channel);
        channel.basicConsume(queue, false, consumer); // require acks.
        channel.basicPublish("", queue, new AMQP.BasicProperties.Builder().build(), body);
        QueueingConsumer.Delivery delivery = consumer.nextDelivery();
        assertTrue("consumed message body not as sent",
                   Arrays.equals(body, delivery.getBody()));
        // Don't ack it, and get it redelivered to the same consumer
        call.recover(channel);
        QueueingConsumer.Delivery secondDelivery = consumer.nextDelivery(5000);
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        QueueingConsumer.Delivery delivery = consumer.nextDelivery();
        assertTrue("consumed message body not as sent",
                   Arrays.equals(body, delivery.getBody()));
        // Don't ack it, and get it redelivered to the same consumer
        call.recover(channel);
        QueueingConsumer.Delivery secondDelivery = consumer.nextDelivery(5000);
        assertNotNull("timed out waiting for redelivered message", secondDelivery);
        assertTrue("consumed (redelivered) message body not as sent",
                   Arrays.equals(body, delivery.getBody()));
    }
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    void verifyNoRedeliveryWithAutoAck(RecoverCallback call)
        throws IOException, InterruptedException {
        QueueingConsumer consumer = new QueueingConsumer(channel);
        channel.basicConsume(queue, true, consumer); // auto ack.
        channel.basicPublish("", queue, new AMQP.BasicProperties.Builder().build(), body);
        QueueingConsumer.Delivery delivery = consumer.nextDelivery();
        assertTrue("consumed message body not as sent",
                   Arrays.equals(body, delivery.getBody()));
        call.recover(channel);
        // there's a race here between our recover finishing and the basic.get;
        Thread.sleep(500);
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        openConnection();
        open();
        injectMessage();
        QueueingConsumer c = new QueueingConsumer(channel);
        channel.basicConsume(Q, c);
        c.nextDelivery();
        close();
        open();
        assertNotNull(getMessage());
        close();
        closeConnection();
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