Splitting a message, and processing and gathering responses

This recipe will show you how you how to split a message into individual fragments, process each fragment individually, and re-aggregate the processed exchanges back into a single exchange. In EIP terms, this is known as a Composed Message Processor, and is made up of a combination of a Splitter and an Aggregator.

Getting ready

Java code for this recipe is located in the org.camelcookbook.splitjoin.splitaggregate package. The Spring XML examples are located under src/main/resources/META-INF/spring and prefixed with splitAggregate.

How to do it...

In order to split and aggregate (join) a message, combine a split DSL statement with an associated AggregationStrategy as follows:

1. Define an AggregationStrategy instance as described in the Aggregating related messages recipe. For this example, we will reuse the SetAggregationStrategy implementation from that recipe:

   <bean id="setAggregationRepository"
         class="org.camelcookbook,splitjoin...