Apache Synapse simulate mediator

Simulate mediator is a pluggable extension to Apache Synapse and WSO2 ESB, Enterprise Service Bus products. It performs regular expression matches against the message and if all the matches succeed, it replaces the message with the given contents of the file. You can replace the whole SOAP envelope or replace only the body contents. This mediator can be used to simulate Web service responses for development and testing. Check out the sample, and download the binary with the source code here.