ECID propagation between SCA composites and JAX-WS web services by Nicolas Fonnegra


clip_image002The Oracle SOA Suite provides an Audit Trail monitor screen where the message flow between the different SCA composites can be tracked. Depending on the audit level, it can provide a very detailed chronology of the different states of the message, including the first component that receives the messages, its correspondent transformation along the way, and the routing it’s final destination. Nevertheless, a SOA platform is intended to integrate not only internal composites but also external components. The question is how to maintain the audit trail consistency in such scenarios?

The Oracle A-team posted a very helpful blog demonstrating how to propagate the ECID between JCA adapter calls in order to maintain the audit trail consistency. This blog is going to demonstrate how to achieve this result with JAXWS web services.

As the reader might have already figured it out, the key to this problem relies with the ECID. The execution context id (ECID) is the mechanism the SOA Suite uses to keep track of the messages as it passes between the different components. If an SCA calls another one, it will pass through the ECID, helping the audit trail to correlate the different component instances into one flow. Also, if instead of a SCA composite a JAXWS web service, the ECID will be passed in the SOAP header, more specifically in the ReplyTo element: Read the complete article here.

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About Jürgen Kress
As a middleware expert Jürgen works at Oracle EMEA Alliances and Channels, responsible for Oracle’s EMEA Fusion Middleware partner business. He is the founder of the Oracle SOA & BPM and the WebLogic Partner Communities and the global Oracle Partner Advisory Councils. With more than 5000 members from all over the world the Middleware Partner Community is the most successful and active community at Oracle. Jürgen manages the community with monthly newsletters, webcasts and conferences. He hosts his annual Fusion Middleware Partner Community Forums and the Fusion Middleware Summer Camps, where more than 200 partners get product updates, roadmap insights and hands-on trainings. Supplemented by many web 2.0 tools like twitter, discussion forums, online communities, blogs and wikis. For the SOA & Cloud Symposium by Thomas Erl, Jürgen is a member of the steering board. He is also a frequent speaker at conferences like the SOA & BPM Integration Days, JAX, UKOUG, OUGN, or OOP.

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