Synapse uses Apache Axis2 as the underlying Web Services engine. Therefore it has outstanding support for Web Services and related standards such as SOAP and WSDL. Tried and tested Axis2 modules like Apache Rampart and Apache Sandesha2 can be used with Synapse with no configuration overhead. Using such external modules, Apache Synapse supports a range of Web Services standards including WS-Security and WS-Reliable Messaging. Synapse also makes use of the Axis2 clustering framework to provide enterprise grade clustering support.
Synapse is configured using a simple, XML-based configuration language. The configuration language and the related functional components are designed with SOA best practices in mind. It is trivial to store configuration fragments in an external SOA registry and import them to the mediation engine on demand. Synapse ships with a large collection of mediators that can be used to implement even the most complex enterprise integration scenarios. If necessary, the mediation engine can be extended by developing custom mediators using Java or your favorite scripting language.
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