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());
}
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;
}