@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 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;
}
@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();
}
}
/**
* 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);
}