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

Example 41 with QueueingConsumer

use of com.rabbitmq.client.QueueingConsumer in project rabbitmq-java-client by rabbitmq.

the class QosTests method limitIncrease.

@Test
public void limitIncrease() throws IOException {
    QueueingConsumer c = new QueueingConsumer(channel);
    configure(c, 1, 3);
    channel.basicQos(2, true);
    drain(c, 1);
}

Example 42 with QueueingConsumer

use of com.rabbitmq.client.QueueingConsumer in project rabbitmq-java-client by rabbitmq.

the class QosTests method singleChannelAndQueueFairness.

@Test
public void singleChannelAndQueueFairness() throws IOException {
    // check that when we have multiple consumers on the same
    // channel & queue, and a prefetch limit set, that all
    // consumers get a fair share of the messages.
    channel.basicQos(1, true);
    String q = channel.queueDeclare().getQueue();
    channel.queueBind(q, "amq.fanout", "");
    final Map<String, Integer> counts = Collections.synchronizedMap(new HashMap<String, Integer>());
    QueueingConsumer c = new QueueingConsumer(channel) {

        @Override
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
            counts.put(consumerTag, counts.get(consumerTag) + 1);
            super.handleDelivery(consumerTag, envelope, properties, body);
        }
    };
    channel.basicConsume(q, false, "c1", c);
    channel.basicConsume(q, false, "c2", c);
    int count = 10;
    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");
    }
    // we only check that the server isn't grossly unfair; perfect
    // fairness is too much to ask for (even though RabbitMQ atm
    // does actually provide it in this case)
    assertTrue(counts.get("c1").intValue() > 0);
    assertTrue(counts.get("c2").intValue() > 0);
}

Example 43 with QueueingConsumer

use of com.rabbitmq.client.QueueingConsumer in project rabbitmq-java-client by rabbitmq.

the class QosTests method limitInheritsUnackedCount.

@Test
public void limitInheritsUnackedCount() throws IOException {
    QueueingConsumer c = new QueueingConsumer(channel);
    declareBindConsume(c);
    fill(1);
    drain(c, 1);
    channel.basicQos(2, true);
    fill(2);
    drain(c, 1);
}

Example 44 with QueueingConsumer

use of com.rabbitmq.client.QueueingConsumer in project rabbitmq-java-client by rabbitmq.

the class QosTests method limitDecrease.

@Test
public void limitDecrease() throws IOException {
    QueueingConsumer c = new QueueingConsumer(channel);
    List<Delivery> d = configure(c, 2, 4);
    channel.basicQos(1, true);
    drain(c, 0);
    ack(d, true);
    drain(c, 1);
}

Example 45 with QueueingConsumer

use of com.rabbitmq.client.QueueingConsumer in project rabbitmq-java-client by rabbitmq.

the class QosTests method noAckNoAlterLimit.

@Test
public void noAckNoAlterLimit() throws IOException {
    QueueingConsumer c = new QueueingConsumer(channel);
    declareBindConsume(channel, c, true);
    channel.basicQos(1, true);
    fill(2);
    drain(c, 2);
}