Proof of Concept on Exposing EJB and WS Repositories using Service Aggregation, Utilizing the Open Source WSO2 Enterprise Service Bus. Executive Summary This case study describes a proof of concept for a government organization exposing two repositories (one accessible as an EJB and the other as a Web Service), as a single composite service so that the results could be merged and returned to the caller, removing any possible duplicates. This example shows, caller identity propagation through WS-Security, JAAS and HTTP Basic Authentication from the composite service to the EJB and Web Service, in addition to how failures and timeouts can be handled within the ESB when returning results from external repositories. Problem Identification and Analysis An application (application A) of

Join for free to read