Dynamic Partner Link in BPEL

Problem: Accessing external service from the BPEL process where the address of the external services will be updated when the external service have different version or deployed on to different location with only changes in binding section.

External Service Development: Develop a bpel process which takes string as input and return the string output as “version : processversion input Data : input string” E.g. “version :2.0 input : Manohar”

Implementation: Create a SOA project with name as “VersionProject” and Synchronous bpel process with name “VersionProcess”

Next

Finish

Click OK

Double Click on the “VersionProcess”

Add the “Assign” activity to the process and assign the “OutputVariable” with

concat(“Version: “,ora:getProcessVersion(), ” input Data: “, $inputVariable.payload/client:input)

Click Ok

Deploy the project with 3 different versions

Version 1.0 WSDL URL:

http://localhost:7001/soa-infra/services/default/VersionProject!1.0*soa_7a3502df-e26f-4f0b-a009-ffa2c08fbb04/versionprocess_client_ep?WSDL

Version 2.0 WSDL URL:

http://localhost:7001/soa-infra/services/default/VersionProject!2.0*soa_b7df1d0d-582e-4402-bbc7-be68666d7d50/versionprocess_client_ep?WSDL

Version 3.0 WSDL URL:

http://localhost:7001/soa-infra/services/default/VersionProject/versionprocess_client_ep?WSDL

Dynamic Partner Link: Client accessing partner link dynamically

Create a Client SOA project with name “DynamicPartnerLink” and BPEL process with “DynamicClient”

Update the xsd as below

Open the BPEL component and add a external partner link for VersionProject3.0

Click OK

Create a SOA-MDS connection as below

Once the Connection is made to DEV_MDS we should be able access the shared WS-Addressing.xsd

In BPEL editor create a element variable for

Click on browse button

Click OK à OK àSelect “EndpointReference” and click Ok

Know your variables window looks as below

Add an “Assign” activity to BPEL Process.

Click on “Assign_URL_to_addressVar” and assign URL to addressVar as below

Add “Invoke” activity to BPEL Process and connect the invoke activity to Partner Link i.e. VersionProjectPL

Add two more “Assign” activities before Invoke activity.

One Assign activity ” Assign_addressVar_PartnerLink” for assigning addressVar to PartnerLink

Another assign for copying input msg to Invoke activity input variable

Add one more “Assign” activity after the Invoke activity to assign invokeoutput variable to output variable

Finally BPEL process looks as below. Deploy the project on to Weblogic server

Testing the DynamicPartnerLink Project through SOAPUI tool

To create a SOAPUI project we need to have WSDL url. For our project the wsdl is

http://localhost:7001/soa-infra/services/default/DynamicPartnerLink/dynamicclient_client_ep?WSDL

Go to File à New SOAPUI Project à Enter the details and click ok

You can find the project created with sample request for the operation exposed in service.

Click on “Request1”

Enter the inputs for the request to test VersionProject1.0 and click “Play button”

Msg: Manohar

URL: http://localhost:7001/soa-infra/services/default/VersionProject!1.0*soa_7a3502df-e26f-4f0b-a009-ffa2c08fbb04/versionprocess_client_ep?WSDL

Repeat the test with URL for VersionProject2.0

Msg: Manohar

URL: http://localhost:7001/soa-infra/services/default/VersionProject!2.0*soa_b7df1d0d-582e-4402-bbc7-be68666d7d50/versionprocess_client_ep?WSDL

Repeat the test with URL for VersionProject3.0

Msg: Manohar

URL: http://localhost:7001/soa-infra/services/default/VersionProject/versionprocess_client_ep?WSDL