/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.qpid.jms.consumer;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;
import org.apache.activemq.broker.jmx.QueueViewMBean;
import org.apache.qpid.jms.JmsConnection;
import org.apache.qpid.jms.policy.JmsDefaultRedeliveryPolicy;
import org.apache.qpid.jms.support.AmqpTestSupport;
import org.apache.qpid.jms.support.Wait;
import org.junit.Test;
/**
* Test for MessageConsumer that has a prefetch value of zero.
*/
public class JmsZeroPrefetchTest extends AmqpTestSupport {
@Override
public String getAmqpConnectionURIOptions() {
return "jms.prefetchPolicy.all=0";
}
@Test(timeout = 60000)
public void testBlockingReceivesUnBlocksOnMessageSend() throws Exception {
connection = createAmqpConnection();
connection.start();
final Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue(getDestinationName());
final MessageProducer producer = session.createProducer(queue);
Thread producerThread = new Thread(new Runnable() {
@Override
public void run() {
try {
Thread.sleep(1500);
producer.send(session.createTextMessage("Hello World! 1"));
} catch (Exception e) {
}
}
});
producerThread.start();
MessageConsumer consumer = session.createConsumer(queue);
Message answer = consumer.receive();
assertNotNull("Should have received a message!", answer);
final QueueViewMBean queueView = getProxyToQueue(getDestinationName());
// Assert that we only pulled one message and that we didn't cause
// the other message to be dispatched.
assertTrue(Wait.waitFor(new Wait.Condition() {
@Override
public boolean isSatisified() throws Exception {
return queueView.getQueueSize() == 0;
}
}));
}
@Test(timeout = 60000)
public void testReceiveTimesOutAndRemovesCredit() throws Exception {
connection = createAmqpConnection();
connection.start();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue(getDestinationName());
MessageConsumer consumer = session.createConsumer(queue);
Message answer = consumer.receive(100);
assertNull("Should have not received a message!", answer);
MessageProducer producer = session.createProducer(queue);
producer.send(session.createTextMessage("Hello World! 1"));
final QueueViewMBean queueView = getProxyToQueue(getDestinationName());
// Assert that we only pulled one message and that we didn't cause
// the other message to be dispatched.
assertTrue(Wait.waitFor(new Wait.Condition() {
@Override
public boolean isSatisified() throws Exception {
return queueView.getQueueSize() == 1;
}
}));
assertEquals(0, queueView.getInFlightCount());
}
@Test(timeout = 60000)
public void testReceiveNoWaitWaitForSever() throws Exception {
connection = createAmqpConnection();
connection.start();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue(getDestinationName());
MessageProducer producer = session.createProducer(queue);
producer.send(session.createTextMessage("Hello World! 1"));
MessageConsumer consumer = session.createConsumer(queue);
Message answer = consumer.receiveNoWait();
assertNotNull("Should have received a message!", answer);
// Send another, it should not get dispatched.
producer.send(session.createTextMessage("Hello World! 2"));
final QueueViewMBean queueView = getProxyToQueue(getDestinationName());
// Assert that we only pulled one message and that we didn't cause
// the other message to be dispatched.
assertTrue(Wait.waitFor(new Wait.Condition() {
@Override
public boolean isSatisified() throws Exception {
return queueView.getQueueSize() == 1;
}
}));
assertEquals(0, queueView.getInFlightCount());
}
@Test(timeout = 60000)
public void testRepeatedPullAttempts() throws Exception {
connection = createAmqpConnection();
connection.start();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue(getDestinationName());
MessageProducer producer = session.createProducer(queue);
producer.send(session.createTextMessage("Hello World!"));
// now lets receive it
MessageConsumer consumer = session.createConsumer(queue);
Message answer = consumer.receive(5000);
assertNotNull("Should have received a message!", answer);
// check if method will return at all and will return a null
answer = consumer.receive(1);
assertNull("Should have not received a message!", answer);
answer = consumer.receiveNoWait();
assertNull("Should have not received a message!", answer);
}
@Test(timeout = 60000)
public void testPullConsumerOnlyRequestsOneMessage() throws Exception {
connection = createAmqpConnection();
connection.start();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue(getDestinationName());
MessageProducer producer = session.createProducer(queue);
producer.send(session.createTextMessage("Hello World! 1"));
producer.send(session.createTextMessage("Hello World! 2"));
final QueueViewMBean queueView = getProxyToQueue(getDestinationName());
// Check initial Queue State
assertEquals(2, queueView.getQueueSize());
assertEquals(0, queueView.getInFlightCount());
// now lets receive it
MessageConsumer consumer = session.createConsumer(queue);
Message answer = consumer.receive(5000);
assertNotNull("Should have received a message!", answer);
// Assert that we only pulled one message and that we didn't cause
// the other message to be dispatched.
assertTrue(Wait.waitFor(new Wait.Condition() {
@Override
public boolean isSatisified() throws Exception {
return queueView.getQueueSize() == 1;
}
}));
assertEquals(0, queueView.getInFlightCount());
}
@Test(timeout = 60000)
public void testTwoConsumers() throws Exception {
connection = createAmqpConnection();
connection.start();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue(getDestinationName());
MessageProducer producer = session.createProducer(queue);
producer.send(session.createTextMessage("Msg1"));
producer.send(session.createTextMessage("Msg2"));
// now lets receive it
MessageConsumer consumer1 = session.createConsumer(queue);
MessageConsumer consumer2 = session.createConsumer(queue);
TextMessage answer = (TextMessage)consumer1.receive(5000);
assertNotNull(answer);
assertEquals("Should have received a message!", answer.getText(), "Msg1");
answer = (TextMessage)consumer2.receive(5000);
assertNotNull(answer);
assertEquals("Should have received a message!", answer.getText(), "Msg2");
answer = (TextMessage)consumer2.receiveNoWait();
assertNull("Should have not received a message!", answer);
}
@Test(timeout = 60000)
public void testConsumerWithNoMessageDoesNotHogMessages() throws Exception {
connection = createAmqpConnection();
connection.start();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue(getDestinationName());
// Try and receive one message which will fail
MessageConsumer consumer1 = session.createConsumer(queue);
assertNull(consumer1.receive(10));
// Now Producer a message
MessageProducer producer = session.createProducer(queue);
producer.send(session.createTextMessage("Msg1"));
// now lets receive it with the second consumer, the first should
// not be accepting messages now and the broker should give it to
// consumer 2.
MessageConsumer consumer2 = session.createConsumer(queue);
TextMessage answer = (TextMessage)consumer2.receive(3000);
assertNotNull(answer);
assertEquals("Should have received a message!", answer.getText(), "Msg1");
}
@Test(timeout=60000)
public void testConsumerReceivePrefetchZeroRedeliveryZero() throws Exception {
connection = createAmqpConnection();
connection.start();
// push message to queue
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue("test.prefetch.zero");
MessageProducer producer = session.createProducer(queue);
TextMessage textMessage = session.createTextMessage("test Message");
producer.send(textMessage);
session.close();
// consume and rollback - increase redelivery counter on message
session = connection.createSession(true, Session.SESSION_TRANSACTED);
MessageConsumer consumer = session.createConsumer(queue);
Message message = consumer.receive(3000);
assertNotNull(message);
session.rollback();
session.close();
JmsDefaultRedeliveryPolicy redeliveryPolicy = new JmsDefaultRedeliveryPolicy();
redeliveryPolicy.setMaxRedeliveries(0);
// Reconnect with zero prefetch and zero redeliveries allowed.
connection.close();
connection = createAmqpConnection();
((JmsConnection)connection).setRedeliveryPolicy(redeliveryPolicy);
connection.start();
// try consume with timeout - expect it to timeout and return NULL message
session = connection.createSession(true, Session.SESSION_TRANSACTED);
consumer = session.createConsumer(queue);
message = consumer.receive(1000);
assertNull(message);
}
}