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PaaS Partner Community

  • July 1, 2016

Custom Transports in Service Bus 12.2.1 by Ricardo Ferreira

Jürgen Kress
PaaS Partner Adoption

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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