Custom Transports in Service Bus 12.2.1 by Ricardo Ferreira


clip_image002Oracle Service Bus (or Service Bus for short) provides a very powerful set of APIs that allow experienced Java developers to create custom transport providers. This is called Service Bus Transport SDK. By using this SDK, it is possible to create custom transport providers to handle both inbound and outbound message handling for specific protocols, without having to worry with the internal details of Service Bus.

The objective of this post is not about how the Service Bus Transport SDK works, neither about providing examples about how to use it. This is very detailed in the Service Bus documentation. Instead, we are going to cover the specifics about creating custom transport providers for Service Bus 12.2.1. Thus; this post will walk through the changes and challenges introduced by this new version, which may help people that want to port their custom transports from previous versions of Service Bus to 12.2.1.

Changes in the Classpath

No matter which IDE you commonly use to develop the code for custom transport providers, when you try to open your project you will face some annoying classpath issues. This will happen because the 12.2.1 version of Service Bus changed many of its JAR files, in an attempt to create a more consistent system library classpath. This is also true for some JAR files that belongs to WebLogic, and many others from the Fusion Middleware stack.

Therefore, you will have to adapt your classpath to be able to compile your source-code again, either compiling the code from the IDE or using the Ant javac task. The XML snippet below is an Eclipse user library export with some of the most important JARs that you might need while working with Service Bus 12.2.1. 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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