Since I am fairly new to the Oracle Service Bus I gathered a lot of information about this product. Most of it is not shocking and has been mentioned already, but this gave me a nice summarized overview of what 12c has to offer in comparing to 11g.
JDeveloper
Since the 12.1.3 release, you don’t need eclipse anymore to create your service bus projects. Just as for the SOA Suite you can do everything from JDeveloper. When creating a service bus project, you will get an sboverview file in your project. This file describes the entire application assembly of proxy services, business services, pipelines, and split-joins. There is one overview file for each Service Bus project.
Debugger
Not only are the Service Bus projects within JDeveloper, they also run on the Integrated WebLogic server. This way it becomes easier to debug the service bus. You can just place breakpoints in your source files and choose the debug command. A breakpoint marks a point in a pipeline or split-join where message processing pauses. This lets you examine the values of some or all of the message variables.
EM FMW Control Console
With the move of the service bus towards JDeveloper, it is now also integrated into the Enterprise Manager Fusion Middleware Control Console as we know it from the SOA Suite. However, there still is the sbconsole as we know it. The layout of the sbconsole has been moved towards the Oracle standard, with that the functionality as you know it from 11g might be displayed a bit different but it is all still there.
Rest/json support
The Service Bus now supports the use of REST service. Meaning you can create rest enabled endpoint with the service bus. However, the Service Bus only provides a virtualization layer to support REST, which means that only proxy and business services are REST-based. These REST services invoke, or are invoked by, a WSDL-based pipeline or split-join. REST proxy services convert the REST native payload to SOAP before invoking a pipeline or split-join, while REST business services invoked by a pipeline or split-join convert the payload from SOAP to REST. The internal interface is WSDL-based, while the external business and proxy services expose REST endpoints.
Read more in the Service Bus documentation.
Pipeline templates
You can create pipeline templates. These templates are living entities, when creating a new pipeline you can base these on the template. When creating these new pipeline you can decide whether you want it to be linked or unlinked.
If you decide to link the template to your pipeline this means that when the template changes, these changes will be rolled out to the linked pipelines and these will be updated. If you decide to unlink a template, the template will be used as a starting point to create the pipeline, but it will not be updated anymore if the template changes.
Xpath/xquery support
Where you might be used to xpath in the SOA Suite and xquery in the Service bus. With the release of 12.1.3 you can now use both xpath and xquery in the Service Bus as well as the SOA Suite.
Tracing
You can now trace an instance going through both the service bus and the soa suite back and forth. The first service that your instance hits will generate an ecid, this ecid will be used throughout the whole instance. This also works if your SOA Suite and Service bus run on a different domain.
Splitted Pipeline & Proxy Service
You can have a generic pipeline to multiple proxies, this way you can have multiple interfaces, for example to support both an xml and a json interface, but use the same generic pipeline.
Upcoming New Feature
There were a few demos of new features coming in the next release (12.2).
From 12.2 there will be a native end to end support for json, meaning the service bus will no longer translate the json to xml internally. Next to that, there will be a JavaScript action available which you can use in the pipeline to manipulate data. With the help of EX4 this JavaScript expression builder will also be available to manipulate xml, meaning that JavaScript will be a powerful tool within the Service Bus.
Available online resources
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