@Override
public void bindRequestor(
String name, MessageChannel requests, MessageChannel replies, Properties properties) {
if (logger.isInfoEnabled()) {
logger.info("binding requestor: " + name);
}
validateProducerProperties(name, properties, SUPPORTED_REQUESTING_PRODUCER_PROPERTIES);
Assert.isInstanceOf(SubscribableChannel.class, requests);
RabbitPropertiesAccessor accessor = new RabbitPropertiesAccessor(properties);
String queueName = applyRequests(name);
AmqpOutboundEndpoint queue =
this.buildOutboundEndpoint(queueName, accessor, this.rabbitTemplate);
queue.setBeanFactory(this.getBeanFactory());
String replyQueueName =
accessor.getPrefix(this.defaultPrefix)
+ name
+ ".replies."
+ this.getIdGenerator().generateId();
this.doRegisterProducer(name, requests, queue, replyQueueName, accessor);
Queue replyQueue = new Queue(replyQueueName, false, false, true); // auto-delete
declareQueueIfNotPresent(replyQueue);
// register with context so it will be redeclared after a connection failure
if (!this.autoDeclareContext.containsBean(replyQueueName)) {
this.autoDeclareContext.getBeanFactory().registerSingleton(replyQueueName, replyQueue);
}
this.doRegisterConsumer(name, replies, replyQueue, accessor, false);
}
private RabbitTemplate determineRabbitTemplate(RabbitPropertiesAccessor properties) {
RabbitTemplate rabbitTemplate = null;
if (properties.isBatchingEnabled(this.defaultBatchingEnabled)) {
BatchingStrategy batchingStrategy =
new SimpleBatchingStrategy(
properties.getBatchSize(this.defaultBatchSize),
properties.geteBatchBufferLimit(this.defaultBatchBufferLimit),
properties.getBatchTimeout(this.defaultBatchTimeout));
rabbitTemplate =
new BatchingRabbitTemplate(
batchingStrategy,
getApplicationContext()
.getBean(IntegrationContextUtils.TASK_SCHEDULER_BEAN_NAME, TaskScheduler.class));
rabbitTemplate.setConnectionFactory(this.connectionFactory);
}
if (properties.isCompress(this.defaultCompress)) {
if (rabbitTemplate == null) {
rabbitTemplate = new RabbitTemplate(this.connectionFactory);
}
rabbitTemplate.setBeforePublishPostProcessors(this.compressingPostProcessor);
rabbitTemplate.afterPropertiesSet();
}
if (rabbitTemplate == null) {
rabbitTemplate = this.rabbitTemplate;
}
return rabbitTemplate;
}
private Map<String, Object> queueArgs(RabbitPropertiesAccessor accessor, String queueName) {
Map<String, Object> args = new HashMap<>();
if (accessor.getAutoBindDLQ(this.defaultAutoBindDLQ)) {
args.put(
"x-dead-letter-exchange", applyPrefix(accessor.getPrefix(this.defaultPrefix), "DLX"));
args.put("x-dead-letter-routing-key", queueName);
}
return args;
}
private void configureOutboundHandler(
AmqpOutboundEndpoint handler, RabbitPropertiesAccessor properties) {
DefaultAmqpHeaderMapper mapper = new DefaultAmqpHeaderMapper();
mapper.setRequestHeaderNames(
properties.getRequestHeaderPattens(this.defaultRequestHeaderPatterns));
mapper.setReplyHeaderNames(properties.getReplyHeaderPattens(this.defaultReplyHeaderPatterns));
handler.setHeaderMapper(mapper);
handler.setDefaultDeliveryMode(properties.getDeliveryMode(this.defaultDefaultDeliveryMode));
handler.setBeanFactory(this.getBeanFactory());
handler.afterPropertiesSet();
}
@Override
public void bindPubSubProducer(
String name, MessageChannel moduleOutputChannel, Properties properties) {
validateProducerProperties(name, properties, SUPPORTED_PUBSUB_PRODUCER_PROPERTIES);
RabbitPropertiesAccessor accessor = new RabbitPropertiesAccessor(properties);
String exchangeName = applyPrefix(accessor.getPrefix(this.defaultPrefix), applyPubSub(name));
declareExchangeIfNotPresent(new FanoutExchange(exchangeName));
AmqpOutboundEndpoint fanout = new AmqpOutboundEndpoint(determineRabbitTemplate(accessor));
fanout.setExchangeName(exchangeName);
configureOutboundHandler(fanout, accessor);
doRegisterProducer(name, moduleOutputChannel, fanout, accessor);
}
private MessageRecoverer determineRecoverer(String name, RabbitPropertiesAccessor properties) {
if (properties.getRepublishToDLQ(this.defaultRepublishToDLQ)) {
RabbitTemplate errorTemplate = new RabbitTemplate(this.connectionFactory);
String prefix = properties.getPrefix(this.defaultPrefix);
RepublishMessageRecoverer republishMessageRecoverer =
new RepublishMessageRecoverer(
errorTemplate, deadLetterExchangeName(prefix), applyPrefix(prefix, name));
// TODO: Add container id to republished message headers? (Needs AMQP-489).
return republishMessageRecoverer;
} else {
return new RejectAndDontRequeueRecoverer();
}
}
private SendingHandler(
MessageHandler delegate, String replyTo, RabbitPropertiesAccessor properties) {
this.delegate = delegate;
this.replyTo = replyTo;
this.partitioningMetadata =
new PartitioningMetadata(properties, properties.getNextModuleCount());
this.setBeanFactory(RabbitMessageChannelBinder.this.getBeanFactory());
}
/**
* If so requested, declare the DLX/DLQ and bind it. The DLQ is bound to the DLX with a routing
* key of the original queue name because we use default exchange routing by queue name for the
* original message.
*
* @param name The name.
* @param properties The properties accessor.
*/
private void autoBindDLQ(final String name, RabbitPropertiesAccessor properties) {
if (logger.isDebugEnabled()) {
logger.debug(
"autoBindDLQ=" + properties.getAutoBindDLQ(this.defaultAutoBindDLQ) + " for: " + name);
}
if (properties.getAutoBindDLQ(this.defaultAutoBindDLQ)) {
String prefix = properties.getPrefix(this.defaultPrefix);
String queueName = applyPrefix(prefix, name);
String dlqName = constructDLQName(queueName);
Queue dlq = new Queue(dlqName);
declareQueueIfNotPresent(dlq);
final String dlxName = deadLetterExchangeName(prefix);
final DirectExchange dlx = new DirectExchange(dlxName);
declareExchangeIfNotPresent(dlx);
this.rabbitAdmin.declareBinding(BindingBuilder.bind(dlq).to(dlx).with(queueName));
}
}
@Override
public void bindReplier(
String name, MessageChannel requests, MessageChannel replies, Properties properties) {
if (logger.isInfoEnabled()) {
logger.info("binding replier: " + name);
}
validateConsumerProperties(name, properties, SUPPORTED_REPLYING_CONSUMER_PROPERTIES);
RabbitPropertiesAccessor accessor = new RabbitPropertiesAccessor(properties);
Queue requestQueue =
new Queue(applyPrefix(accessor.getPrefix(this.defaultPrefix), applyRequests(name)));
declareQueueIfNotPresent(requestQueue);
this.doRegisterConsumer(name, requests, requestQueue, accessor, false);
AmqpOutboundEndpoint replyQueue = new AmqpOutboundEndpoint(rabbitTemplate);
replyQueue.setExpressionRoutingKey(
EXPRESSION_PARSER.parseExpression("headers['" + AmqpHeaders.REPLY_TO + "']"));
configureOutboundHandler(replyQueue, accessor);
doRegisterProducer(name, replies, replyQueue, accessor);
}
private AmqpOutboundEndpoint buildOutboundEndpoint(
final String name, RabbitPropertiesAccessor properties, RabbitTemplate rabbitTemplate) {
String queueName = applyPrefix(properties.getPrefix(this.defaultPrefix), name);
String partitionKeyExtractorClass = properties.getPartitionKeyExtractorClass();
Expression partitionKeyExpression = properties.getPartitionKeyExpression();
AmqpOutboundEndpoint queue = new AmqpOutboundEndpoint(rabbitTemplate);
if (partitionKeyExpression == null && !StringUtils.hasText(partitionKeyExtractorClass)) {
declareQueueIfNotPresent(new Queue(queueName));
queue.setRoutingKey(queueName); // uses default exchange
} else {
queue.setExpressionRoutingKey(
EXPRESSION_PARSER.parseExpression(buildPartitionRoutingExpression(queueName)));
// if the stream is partitioned, create one queue for each target partition
for (int i = 0; i < properties.getNextModuleCount(); i++) {
this.rabbitAdmin.declareQueue(new Queue(queueName + "-" + i));
}
}
configureOutboundHandler(queue, properties);
return queue;
}
@Override
public void bindPubSubConsumer(
String name, MessageChannel moduleInputChannel, Properties properties) {
String exchangeName = BinderUtils.removeGroupFromPubSub(name);
if (logger.isInfoEnabled()) {
logger.info("declaring pubsub for inbound: " + name + ", bound to: " + exchangeName);
}
RabbitPropertiesAccessor accessor = new RabbitPropertiesAccessor(properties);
validateConsumerProperties(name, properties, SUPPORTED_PUBSUB_CONSUMER_PROPERTIES);
String prefix = accessor.getPrefix(this.defaultPrefix);
FanoutExchange exchange = new FanoutExchange(applyPrefix(prefix, applyPubSub(exchangeName)));
declareExchangeIfNotPresent(exchange);
Queue queue;
boolean durable = accessor.isDurable(this.defaultDurableSubscription);
String queueName = applyPrefix(prefix, name);
if (durable) {
Map<String, Object> args = queueArgs(accessor, queueName);
queue = new Queue(queueName, true, false, false, args);
} else {
queue = new Queue(queueName, false, false, true);
}
declareQueueIfNotPresent(queue);
org.springframework.amqp.core.Binding binding = BindingBuilder.bind(queue).to(exchange);
this.rabbitAdmin.declareBinding(binding);
// register with context so they will be redeclared after a connection failure
if (!this.autoDeclareContext.containsBean(applyPubSub(name))) {
this.autoDeclareContext.getBeanFactory().registerSingleton(applyPubSub(name), queue);
}
String bindingBeanName = exchange.getName() + "." + queue.getName() + ".binding";
if (!this.autoDeclareContext.containsBean(bindingBeanName)) {
this.autoDeclareContext.getBeanFactory().registerSingleton(bindingBeanName, binding);
}
doRegisterConsumer(name, moduleInputChannel, queue, accessor, true);
if (durable) {
autoBindDLQ(name, accessor);
}
}
@Override
public void bindConsumer(
final String name, MessageChannel moduleInputChannel, Properties properties) {
if (logger.isInfoEnabled()) {
logger.info("declaring queue for inbound: " + name);
}
if (name.startsWith(P2P_NAMED_CHANNEL_TYPE_PREFIX)) {
validateConsumerProperties(name, properties, SUPPORTED_NAMED_CONSUMER_PROPERTIES);
} else {
validateConsumerProperties(name, properties, SUPPORTED_CONSUMER_PROPERTIES);
}
RabbitPropertiesAccessor accessor = new RabbitPropertiesAccessor(properties);
String queueName = applyPrefix(accessor.getPrefix(this.defaultPrefix), name);
int partitionIndex = accessor.getPartitionIndex();
if (partitionIndex >= 0) {
queueName += "-" + partitionIndex;
}
Map<String, Object> args = queueArgs(accessor, queueName);
Queue queue = new Queue(queueName, true, false, false, args);
declareQueueIfNotPresent(queue);
autoBindDLQ(name, accessor);
doRegisterConsumer(name, moduleInputChannel, queue, accessor, false);
bindExistingProducerDirectlyIfPossible(name, moduleInputChannel);
}
private void doRegisterConsumer(
String name,
MessageChannel moduleInputChannel,
Queue queue,
RabbitPropertiesAccessor properties,
boolean isPubSub) {
// Fix for XD-2503
// Temporarily overrides the thread context classloader with the one where the
// SimpleMessageListenerContainer
// is defined
// This allows for the proxying that happens while initializing the
// SimpleMessageListenerContainer to work
// correctly
ClassLoader originalClassloader = Thread.currentThread().getContextClassLoader();
try {
ClassUtils.overrideThreadContextClassLoader(
SimpleMessageListenerContainer.class.getClassLoader());
SimpleMessageListenerContainer listenerContainer =
new SimpleMessageListenerContainer(this.connectionFactory);
listenerContainer.setAcknowledgeMode(
properties.getAcknowledgeMode(this.defaultAcknowledgeMode));
listenerContainer.setChannelTransacted(
properties.getTransacted(this.defaultChannelTransacted));
listenerContainer.setDefaultRequeueRejected(
properties.getRequeueRejected(this.defaultDefaultRequeueRejected));
if (!isPubSub) {
int concurrency = properties.getConcurrency(this.defaultConcurrency);
concurrency = concurrency > 0 ? concurrency : 1;
listenerContainer.setConcurrentConsumers(concurrency);
int maxConcurrency = properties.getMaxConcurrency(this.defaultMaxConcurrency);
if (maxConcurrency > concurrency) {
listenerContainer.setMaxConcurrentConsumers(maxConcurrency);
}
}
listenerContainer.setPrefetchCount(properties.getPrefetchCount(this.defaultPrefetchCount));
listenerContainer.setTxSize(properties.getTxSize(this.defaultTxSize));
listenerContainer.setTaskExecutor(new SimpleAsyncTaskExecutor(queue.getName() + "-"));
listenerContainer.setQueues(queue);
int maxAttempts = properties.getMaxAttempts(this.defaultMaxAttempts);
if (maxAttempts > 1 || properties.getRepublishToDLQ(this.defaultRepublishToDLQ)) {
RetryOperationsInterceptor retryInterceptor =
RetryInterceptorBuilder.stateless()
.maxAttempts(maxAttempts)
.backOffOptions(
properties.getBackOffInitialInterval(this.defaultBackOffInitialInterval),
properties.getBackOffMultiplier(this.defaultBackOffMultiplier),
properties.getBackOffMaxInterval(this.defaultBackOffMaxInterval))
.recoverer(determineRecoverer(name, properties))
.build();
listenerContainer.setAdviceChain(new Advice[] {retryInterceptor});
}
listenerContainer.setAfterReceivePostProcessors(this.decompressingPostProcessor);
listenerContainer.setMessagePropertiesConverter(
RabbitMessageChannelBinder.inboundMessagePropertiesConverter);
listenerContainer.afterPropertiesSet();
AmqpInboundChannelAdapter adapter = new AmqpInboundChannelAdapter(listenerContainer);
adapter.setBeanFactory(this.getBeanFactory());
DirectChannel bridgeToModuleChannel = new DirectChannel();
bridgeToModuleChannel.setBeanFactory(this.getBeanFactory());
bridgeToModuleChannel.setBeanName(name + ".bridge");
adapter.setOutputChannel(bridgeToModuleChannel);
adapter.setBeanName("inbound." + name);
DefaultAmqpHeaderMapper mapper = new DefaultAmqpHeaderMapper();
mapper.setRequestHeaderNames(
properties.getRequestHeaderPattens(this.defaultRequestHeaderPatterns));
mapper.setReplyHeaderNames(properties.getReplyHeaderPattens(this.defaultReplyHeaderPatterns));
adapter.setHeaderMapper(mapper);
adapter.afterPropertiesSet();
Binding consumerBinding = Binding.forConsumer(name, adapter, moduleInputChannel, properties);
addBinding(consumerBinding);
ReceivingHandler convertingBridge = new ReceivingHandler();
convertingBridge.setOutputChannel(moduleInputChannel);
convertingBridge.setBeanName(name + ".convert.bridge");
convertingBridge.afterPropertiesSet();
bridgeToModuleChannel.subscribe(convertingBridge);
consumerBinding.start();
} finally {
Thread.currentThread().setContextClassLoader(originalClassloader);
}
}