@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;
}
/**
* @deprecated in favor of {@link #setExpressionRoutingKey}. Will be changed in a future release
* to use an {@link Expression} parameter.
* @param routingKeyExpression the expression to set.
*/
@Deprecated
public void setRoutingKeyExpression(String routingKeyExpression) {
Assert.hasText(routingKeyExpression);
setExpressionRoutingKey(expressionParser.parseExpression(routingKeyExpression));
}