OSB 11g - Call Asynchronous Web Service from OSB over http protocol

In my previous post, I explained how we can call Asynchronous web service from Oracle Service Bus using soa-direct protocol. But in many scenario’s we need to invoke asynchronous web service from Oracle Service Bus using http protocol.

In this post I am going to explain how we can invoke Asynchronous web service (Async Composite) from Oracle Service Bus over http protocol and route the call back response from Asynchronous web service to another proxy service which in turn call another composite (Second Composite).

Call Asynchronous Composite

Follow below steps to invoke Asynchronous Composite from OSB.

Create an Asynchronous Composite. Name it “AsyncComposite” and deploy it on SOA server.
Create a new OSB project and add three folders to it.

resources
proxyServices
businessServices

OSB Project

Click on “resources” folder. Choose “XML Schema” from “Select Resource Type”, name it as “AsyncCompositeSchema” and add it to resources folder. Similar ways choose “WSDL” from “Select Resource Type”, name it as “AsyncCompositeWSDL” and add it to resources folder.

resources folder

Now create business service to invoke Asynchronous Composite. To do this click on “businessServices” folder, choose “Business Service” from “Select Resource Type”, name it as “CallAsyncCompositeBS”.

Choose “WSDL Web Service” as “Service Type” and browse to above added WSDL file. Then select the port and submit it.

BusinessService

Accept defaults and save this business Service.

Now create proxy service to invoke above created business service. To do this click on “proxyServices” folder, choose “Proxy Service” from “Select Resource Type”, name it as “CallAsyncCompositeProxy”.

Choose “Business Service” as “Service Type” and browse to above created Business Service. Accept defaults and save this proxy service.

Proxy Service

Follow below steps to get response back from Asynchronous Composite.

Create a synchronous or one-way composite, name it “SecondComposite” and deploy it to SOA server. You can create either synchronous or One-way as we created this composite to show that our call back proxy is working.

Go to OSB project that we created above and click on “resources” folder. Add XSD and WSDL of SecondComposite to resources folder.

resources folder

Now create business service to invoke Synchronous Composite. To do this click on “businessServices” folder, choose “Business Service” from “Select Resource Type”, name it as “CallSyncCompositeBS”.

Choose “WSDL Web Service” as “Service Type” and browse to above added WSDL file. Then select the port and submit it.

Note down the “Endpoint URI “. In our case it is “/CallAsyncService/proxyServices/CallSyncCompositeProxy”.

Endpoint URI

Now we will complete the sample. We will configure “CallAsyncCompositeProxy” to send the call back response from Asynchronous Composite to CallSyncCompositeProxy.

Go to CallAsyncCompositeProxy and click on “Edit Message Flow”.