Integrating Spring Context into JDeveloper SOA 11g

Invoking REST Service API from SOA Suite 11g via Spring Context

Requirements:

a)      Oracle SOA Suite 11g (If you gonna use SOA Suite 12c, then this post is not useful, as 12c have implemented REST Adapters for JSON based REST API Invocation)

b)      JDeveloper 11g

c)       RCU & Database (I will come up with a separate post for this)

Steps:

1)      Open JDeveloper Application

2)      Select Tools -> Check for Updates -> Click Next -> Select all the checkboxes -> locate “SOA Composite Editor” and Install

3)      Select Tools -> Check for Updates -> Click Next -> Select all the checkboxes -> locate “Spring, Weblogic SCA Integration Extension” and Install

4)      Select File -> New -> Under General, Applications -> SOA Application -> Enter Application Name and Click Next

5)      Enter the Project Name, select Java & XML from Available to Selected and Click Next

6)      Enter the Composite Name, select Empty Composite and Click Finish.

7)      Open <Composite Name>.xml, select Design Tab

8)      In Component Palette, From Service Component section, click & drag BPEL Process into composite.xml

9)      It creates a client & a simple BPEL Workflow

10)    In Component Palette, From Service Component section, click & drag Spring Context into composite.xml

11)   Now we need to create Spring Bean for integrating Spring into BPEL Workflow

12)   Create a Java Interface and define methods

13)   Create a Java Class which implements the above created Interface and implement your logic

14)   Register the bean into Spring.xml configuration file as below,

<bean class="<fully qualified class name>" id="impl" />

<sca:service name="test" target="impl" type="<fully qualified interface name>" />

15)   In composite.xml, Connect the BPEL Component & Spring Component, necessary files (wsdl, componentType) will be generated by JDeveloper

16)   Now you can use the Spring Component inside BPEL Workflow, as needed you can invoke this Spring Component via Invoke activity with proper input & output variables assigned.

17)   In the Spring Implementation Class, you can play around with all capabilities of Java. As mentioned in the Topic, I’ve used it for Invoking a REST API by constructing a Jersey Client.

18)   Import necessary libraries by, Right-click Project -> Project Properties -> Libraries & Classpath -> Click Add Jar/Directory -> locate and import libraries

19)   There are two ways to deploy the artifacts into WebLogic App Server, post completion of development. Direct Deployment or export the application as SOA archive and deploy it via Enterprise Manager Console.

I have used Jersey 2.6 as SOA 11g supported by jdk6.

Jersey 2.6 API Dependency List,

If needed, i can share the sample code.