@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 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);
}
@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;
}