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/*
* 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.camel.component.jms.reply;
import java.math.BigInteger;
import java.util.Random;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.Session;
import org.apache.camel.AsyncCallback;
import org.apache.camel.CamelContext;
import org.apache.camel.Exchange;
import org.apache.camel.component.jms.ConsumerType;
import org.apache.camel.component.jms.DefaultSpringErrorHandler;
import org.apache.camel.component.jms.MessageListenerContainerFactory;
import org.apache.camel.component.jms.ReplyToType;
import org.apache.camel.component.jms.SimpleJmsMessageListenerContainer;
import org.springframework.jms.listener.AbstractMessageListenerContainer;
import org.springframework.jms.listener.DefaultMessageListenerContainer;
import org.springframework.jms.support.destination.DestinationResolver;
/**
* A {@link ReplyManager} when using regular queues.
*/
public class QueueReplyManager extends ReplyManagerSupport {
private String replyToSelectorValue;
private MessageSelectorCreator dynamicMessageSelector;
public QueueReplyManager(CamelContext camelContext) {
super(camelContext);
}
@Override
protected ReplyHandler createReplyHandler(
ReplyManager replyManager, Exchange exchange, AsyncCallback callback,
String originalCorrelationId, String correlationId, long requestTimeout) {
return new QueueReplyHandler(
replyManager, exchange, callback,
originalCorrelationId, correlationId, requestTimeout);
}
@Override
public void updateCorrelationId(String correlationId, String newCorrelationId, long requestTimeout) {
log.trace("Updated provisional correlationId [{}] to expected correlationId [{}]", correlationId, newCorrelationId);
ReplyHandler handler = correlation.remove(correlationId);
if (handler == null) {
// should not happen that we can't find the handler
return;
}
correlation.put(newCorrelationId, handler, requestTimeout);
}
@Override
protected void handleReplyMessage(String correlationID, Message message, Session session) {
ReplyHandler handler = correlation.get(correlationID);
if (handler == null && endpoint.isUseMessageIDAsCorrelationID()) {
handler = waitForProvisionCorrelationToBeUpdated(correlationID, message);
}
if (handler != null) {
correlation.remove(correlationID);
handler.onReply(correlationID, message, session);
} else {
// we could not correlate the received reply message to a matching request and therefore
// we cannot continue routing the unknown message
// log a warn and then ignore the message
log.warn(
"Reply received for unknown correlationID [{}] on reply destination [{}]. Current correlation map size: {}. The message will be ignored: {}",
correlationID, replyTo, correlation.size(), message);
}
}
@Override
public void setReplyToSelectorHeader(org.apache.camel.Message camelMessage, Message jmsMessage) throws JMSException {
String replyToSelectorName = endpoint.getReplyToDestinationSelectorName();
if (replyToSelectorName != null && replyToSelectorValue != null) {
camelMessage.setHeader(replyToSelectorName, replyToSelectorValue);
jmsMessage.setStringProperty(replyToSelectorName, replyToSelectorValue);
}
}
private final class DestinationResolverDelegate implements DestinationResolver {
private final DestinationResolver delegate;
private Destination destination;
DestinationResolverDelegate(DestinationResolver delegate) {
this.delegate = delegate;
}
@Override
public Destination resolveDestinationName(
Session session, String destinationName,
boolean pubSubDomain)
throws JMSException {
synchronized (QueueReplyManager.this) {
// resolve the reply to destination
if (destination == null) {
destination = delegate.resolveDestinationName(session, destinationName, pubSubDomain);
setReplyTo(destination);
}
}
return destination;
}
}
@Override
protected AbstractMessageListenerContainer createListenerContainer() throws Exception {
if (endpoint.getConfiguration().getReplyToConsumerType() == ConsumerType.Default) {
return createDefaultListenerContainer();
} else if (endpoint.getConfiguration().getReplyToConsumerType() == ConsumerType.Simple) {
return createSimpleListenerContainer();
} else {
MessageListenerContainerFactory factory = endpoint.getConfiguration().getMessageListenerContainerFactory();
if (factory != null) {
return factory.createMessageListenerContainer(endpoint);
}
throw new IllegalArgumentException(
"ReplyToConsumerType.Custom requires that a MessageListenerContainerFactory has been configured");
}
}
protected AbstractMessageListenerContainer createSimpleListenerContainer() {
SimpleJmsMessageListenerContainer answer;
ReplyToType type = endpoint.getConfiguration().getReplyToType();
if (type == null) {
// use shared by default for reply queues
type = ReplyToType.Shared;
}
if (ReplyToType.Shared == type) {
// shared reply to queues support either a fixed or dynamic JMS message selector
String replyToSelectorName = endpoint.getReplyToDestinationSelectorName();
if (replyToSelectorName != null) {
// create a random selector value we will use for the reply queue
// NOSONAR
replyToSelectorValue = "ID:" + new BigInteger(24 * 8, new Random()).toString(16);
String fixedMessageSelector = replyToSelectorName + "='" + replyToSelectorValue + "'";
answer = new SharedQueueSimpleMessageListenerContainer(endpoint, fixedMessageSelector);
log.debug("Using shared queue: {} with fixed message selector [{}] as reply listener: {}",
endpoint.getReplyTo(), fixedMessageSelector, answer);
} else {
// simple message listener must use fixed selector name
throw new IllegalArgumentException(
"ReplyToDestinationSelectorName must be configured when using Simple ReplyToConsumerType");
}
} else if (ReplyToType.Exclusive == type) {
answer = new ExclusiveQueueSimpleMessageListenerContainer(endpoint);
log.debug("Using exclusive queue: {} as reply listener: {}", endpoint.getReplyTo(), answer);
} else {
throw new IllegalArgumentException("ReplyToType " + type + " is not supported for reply queues");
}
DestinationResolver resolver = endpoint.getDestinationResolver();
if (resolver == null) {
resolver = answer.getDestinationResolver();
}
answer.setDestinationResolver(new DestinationResolverDelegate(resolver));
answer.setDestinationName(endpoint.getReplyTo());
answer.setAutoStartup(true);
answer.setMessageListener(this);
answer.setPubSubDomain(false);
answer.setSubscriptionDurable(false);
answer.setConcurrentConsumers(endpoint.getReplyToConcurrentConsumers());
answer.setConnectionFactory(endpoint.getConfiguration().getOrCreateConnectionFactory());
String clientId = endpoint.getClientId();
if (clientId != null) {
clientId += ".CamelReplyManager";
answer.setClientId(clientId);
}
// we cannot do request-reply over JMS with transaction
answer.setSessionTransacted(false);
// other optional properties
if (endpoint.getExceptionListener() != null) {
answer.setExceptionListener(endpoint.getExceptionListener());
}
if (endpoint.getErrorHandler() != null) {
answer.setErrorHandler(endpoint.getErrorHandler());
} else {
answer.setErrorHandler(new DefaultSpringErrorHandler(
endpoint.getCamelContext(), QueueReplyManager.class, endpoint.getErrorHandlerLoggingLevel(),
endpoint.isErrorHandlerLogStackTrace()));
}
// set task executor
if (endpoint.getTaskExecutor() != null) {
log.debug("Using custom TaskExecutor: {} on listener container: {}", endpoint.getTaskExecutor(), answer);
answer.setTaskExecutor(endpoint.getTaskExecutor());
}
// setup a bean name which is used by Spring JMS as the thread name
String name = "QueueReplyManager[" + answer.getDestinationName() + "]";
answer.setBeanName(name);
if (endpoint.getReplyToConcurrentConsumers() > 1) {
if (ReplyToType.Shared == type) {
// warn if using concurrent consumer with shared reply queue as that may not work properly
log.warn(
"Using {} concurrent consumer on {} with shared queue {} may not work properly with all message brokers.",
endpoint.getReplyToConcurrentConsumers(), name,
endpoint.getReplyTo());
} else {
// log that we are using concurrent consumers
log.info("Using {} concurrent consumers on {}",
endpoint.getReplyToConcurrentConsumers(), name);
}
}
return answer;
}
protected DefaultMessageListenerContainer createDefaultListenerContainer() throws Exception {
DefaultMessageListenerContainer answer;
ReplyToType type = endpoint.getConfiguration().getReplyToType();
if (type == null) {
// use shared by default for reply queues
type = ReplyToType.Shared;
}
if (ReplyToType.Shared == type) {
// shared reply to queues support either a fixed or dynamic JMS message selector
String replyToSelectorName = endpoint.getReplyToDestinationSelectorName();
if (replyToSelectorName != null) {
// create a random selector value we will use for the reply queue
// NOSONAR
replyToSelectorValue = "ID:" + new BigInteger(24 * 8, new Random()).toString(16);
String fixedMessageSelector = replyToSelectorName + "='" + replyToSelectorValue + "'";
answer = new SharedQueueMessageListenerContainer(endpoint, fixedMessageSelector);
log.debug("Using shared queue: {} with fixed message selector [{}] as reply listener: {}",
endpoint.getReplyTo(), fixedMessageSelector, answer);
} else {
// use a dynamic message selector which will select the message we want to receive as reply
dynamicMessageSelector = new MessageSelectorCreator(correlation);
answer = new SharedQueueMessageListenerContainer(endpoint, dynamicMessageSelector);
log.debug("Using shared queue: {} with dynamic message selector as reply listener: {}", endpoint.getReplyTo(),
answer);
}
// shared is not as fast as temporary or exclusive, so log this so the end user may be aware of this
log.warn("{} is using a shared reply queue, which is not as fast as alternatives."
+ " See more detail at the section 'Request-reply over JMS' in the JMS component documentation",
endpoint);
} else if (ReplyToType.Exclusive == type) {
answer = new ExclusiveQueueMessageListenerContainer(endpoint);
log.debug("Using exclusive queue: {} as reply listener: {}", endpoint.getReplyTo(), answer);
} else {
throw new IllegalArgumentException("ReplyToType " + type + " is not supported for reply queues");
}
String replyToCacheLevelName = endpoint.getConfiguration().getReplyToCacheLevelName();
if (replyToCacheLevelName != null) {
answer.setCacheLevelName(replyToCacheLevelName);
log.debug("Setting the replyCacheLevel to be {}", replyToCacheLevelName);
}
DestinationResolver resolver = endpoint.getDestinationResolver();
if (resolver == null) {
resolver = answer.getDestinationResolver();
}
answer.setDestinationResolver(new DestinationResolverDelegate(resolver));
answer.setDestinationName(endpoint.getReplyTo());
answer.setAutoStartup(true);
answer.setIdleConsumerLimit(endpoint.getIdleConsumerLimit());
answer.setIdleTaskExecutionLimit(endpoint.getIdleTaskExecutionLimit());
if (endpoint.getMaxMessagesPerTask() >= 0) {
answer.setMaxMessagesPerTask(endpoint.getMaxMessagesPerTask());
}
answer.setMessageListener(this);
answer.setPubSubDomain(false);
answer.setSubscriptionDurable(false);
answer.setConcurrentConsumers(endpoint.getReplyToConcurrentConsumers());
if (endpoint.getReplyToMaxConcurrentConsumers() > 0) {
answer.setMaxConcurrentConsumers(endpoint.getReplyToMaxConcurrentConsumers());
}
answer.setConnectionFactory(endpoint.getConfiguration().getOrCreateConnectionFactory());
setupClientId(endpoint, answer);
// we cannot do request-reply over JMS with transaction
answer.setSessionTransacted(false);
// other optional properties
if (endpoint.getExceptionListener() != null) {
answer.setExceptionListener(endpoint.getExceptionListener());
}
if (endpoint.getErrorHandler() != null) {
answer.setErrorHandler(endpoint.getErrorHandler());
} else {
answer.setErrorHandler(new DefaultSpringErrorHandler(
endpoint.getCamelContext(), QueueReplyManager.class, endpoint.getErrorHandlerLoggingLevel(),
endpoint.isErrorHandlerLogStackTrace()));
}
if (endpoint.getReceiveTimeout() >= 0) {
answer.setReceiveTimeout(endpoint.getReceiveTimeout());
}
if (endpoint.getRecoveryInterval() >= 0) {
answer.setRecoveryInterval(endpoint.getRecoveryInterval());
}
// set task executor
if (endpoint.getTaskExecutor() != null) {
log.debug("Using custom TaskExecutor: {} on listener container: {}", endpoint.getTaskExecutor(), answer);
answer.setTaskExecutor(endpoint.getTaskExecutor());
}
// setup a bean name which is used by Spring JMS as the thread name
String name = "QueueReplyManager[" + answer.getDestinationName() + "]";
answer.setBeanName(name);
if (answer.getConcurrentConsumers() > 1) {
if (ReplyToType.Shared == type) {
// warn if using concurrent consumer with shared reply queue as that may not work properly
log.warn(
"Using {}-{} concurrent consumer on {} with shared queue {} may not work properly with all message brokers.",
answer.getConcurrentConsumers(), answer.getMaxConcurrentConsumers(), name,
endpoint.getReplyTo());
} else {
// log that we are using concurrent consumers
log.info("Using {}-{} concurrent consumers on {}",
answer.getConcurrentConsumers(), answer.getMaxConcurrentConsumers(), name);
}
}
return answer;
}
}
