/*
* 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.activemq.artemis.junit;
import org.apache.activemq.artemis.api.core.ActiveMQException;
import org.apache.activemq.artemis.api.core.SimpleString;
import org.apache.activemq.artemis.api.core.client.ClientConsumer;
import org.apache.activemq.artemis.api.core.client.ClientMessage;
import org.apache.activemq.artemis.api.core.client.ServerLocator;
import org.apache.activemq.artemis.api.core.RoutingType;
/**
* A JUnit Rule that embeds an ActiveMQ Artemis ClientConsumer into a test.
*
* This JUnit Rule is designed to simplify using ActiveMQ Artemis clients in unit tests. Adding the rule to a test will startup
* a ClientConsumer, which can then be used to consume messages from an ActiveMQ Artemis server.
*
* <pre><code>
* public class SimpleTest {
* @Rule
* public ActiveMQConsumerResource client = new ActiveMQProducerResource( "vm://0", "test.queue" );
*
* @Test
* public void testSomething() throws Exception {
* // Use the embedded client here
* ClientMessage message = client.receiveMessage();
* }
* }
* </code></pre>
*/
public class ActiveMQConsumerResource extends AbstractActiveMQClientResource {
long defaultReceiveTimeout = 50;
SimpleString queueName;
ClientConsumer consumer;
public ActiveMQConsumerResource(String url, String queueName) {
this(url, SimpleString.toSimpleString(queueName));
}
public ActiveMQConsumerResource(String url, SimpleString queueName) {
super(url);
this.queueName = queueName;
}
public ActiveMQConsumerResource(ServerLocator serverLocator, String queueName) {
this(serverLocator, SimpleString.toSimpleString(queueName));
}
public ActiveMQConsumerResource(ServerLocator serverLocator, SimpleString queueName) {
super(serverLocator);
this.queueName = queueName;
}
public long getDefaultReceiveTimeout() {
return defaultReceiveTimeout;
}
/**
* Sets the default timeout in milliseconds used when receiving messages. Defaults to 50 milliseconds
*
* @param defaultReceiveTimeout received timeout in milliseconds
*/
public void setDefaultReceiveTimeout(long defaultReceiveTimeout) {
this.defaultReceiveTimeout = defaultReceiveTimeout;
}
@Override
protected void createClient() {
boolean browseOnly = false;
try {
if (!session.queueQuery(queueName).isExists() && autoCreateQueue) {
log.warn("{}: queue does not exist - creating queue: address = {}, name = {}", this.getClass().getSimpleName(), queueName.toString(), queueName.toString());
session.createAddress(queueName, RoutingType.MULTICAST, true);
session.createQueue(queueName, queueName);
}
consumer = session.createConsumer(queueName, browseOnly);
} catch (ActiveMQException amqEx) {
throw new ActiveMQClientResourceException(String.format("Error creating consumer for queueName %s", queueName.toString()), amqEx);
}
}
@Override
protected void stopClient() {
if (consumer != null) {
try {
consumer.close();
} catch (ActiveMQException amqEx) {
log.warn("Exception encountered closing consumer - ignoring", amqEx);
} finally {
consumer = null;
}
}
}
@Override
public boolean isAutoCreateQueue() {
return autoCreateQueue;
}
/**
* Enable/Disable the automatic creation of non-existent queues. The default is to automatically create non-existent queues
*
* @param autoCreateQueue
*/
@Override
public void setAutoCreateQueue(boolean autoCreateQueue) {
this.autoCreateQueue = autoCreateQueue;
}
public ClientMessage receiveMessage() {
return receiveMessage(defaultReceiveTimeout);
}
public ClientMessage receiveMessage(long timeout) {
ClientMessage message = null;
if (timeout > 0) {
try {
message = consumer.receive(timeout);
} catch (ActiveMQException amqEx) {
throw new EmbeddedActiveMQResource.EmbeddedActiveMQResourceException(String.format("ClientConsumer.receive( timeout = %d ) for %s failed", timeout, queueName.toString()), amqEx);
}
} else if (timeout == 0) {
try {
message = consumer.receiveImmediate();
} catch (ActiveMQException amqEx) {
throw new EmbeddedActiveMQResource.EmbeddedActiveMQResourceException(String.format("ClientConsumer.receiveImmediate() for %s failed", queueName.toString()), amqEx);
}
} else {
try {
message = consumer.receive();
} catch (ActiveMQException amqEx) {
throw new EmbeddedActiveMQResource.EmbeddedActiveMQResourceException(String.format("ClientConsumer.receive() for %s failed", queueName.toString()), amqEx);
}
}
return message;
}
}