A Multi-Language Service-Oriented Architecture Using an Enterprise Service Bus Ricky E. Sward MITRE Corporation 1155 Academy Park Loop Colorado Springs, CO 80910 1-719-572-8263 Kelly J. Whitacre MITRE Corporation 1155 Academy Park Loop Colorado Springs, CO 80910 1-719-572-8366 rsward@mitre.org ABSTRACT An Enterprise Service Bus (ESB) provides developers a platform for the straightforward development of a multi-language ServiceOriented Architecture (SOA). Mule, an open source ESB, is presented as one such ESB that easily provides a multi-language SOA integration solution. This paper offers a Mule 1.4 ESB configuration allowing the communication between web services written in Java and Ada running on the Ada Web Server as an example. Additionally, the example demonstrates the use of SOAP and REST style messages within the SOA environment. kwhitacre@mitre.org This paper briefly describes ESB technologies and some of the utilities that are available. The Mule ESB is used as an example to show how services can be built and deployed on an ESB that have been written in different languages, Java and Ada. The example employs Java and Ada Web Services and demonstrates SOAP and REST messages between services. 2. Enterprise Service Bus As more systems designed with SOA technology are being developed, the backbone
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