As part of Oracle Utilities Application Framework V22.214.171.124.0, a new set of Web Services capabilities is now available to replace the Multi-Purpose Listener (MPL) and also XAI Servlet completely with more exciting capabilities.
Here is a summary of the facilities:
- There is a new Inbound Web Services (IWS) capability to replace the XAI Inbound Services and XAI Servlet (which will be deprecated in a future release). This capability combines the meta data within the Oracle Utilities Application Framework with the power of the native Web Services capability within the J2EE Web Application Server to give the following advantages:
- It is possible to define individual Web Services to be deployed on the J2EE Web Application Server. Web based and command line utilities have been provided to allow developers to design, deploy and manage individual Inbound Web Services.
- It is now possible to define multiple operations per Web Service. XAI was restricted to a single operation with multiple transaction types. IWS supports multiple operations separated by transaction type. Operations can even extend to different objects within the same Web Service. This will aid in rationalizing Web Services.
- IWS makes it possible to monitor and manage individual Web Services from the J2EE Web Application Server console (or Oracle Enterprise Manager). These metrics are also available from Oracle Enterprise Manager to provide SLA and trend tracking capabilities. These metrics can also be fine grained to the operation level within a Web Service.
- IWS allows greater flexibility in security. Individual Services can now support standards such as WS-Policy, WS-ReliableMessaging etc as dictated by the capabilities of the J2EE Web Application Server. This includes message and transport based security, such as SAML, X.509 etc and data encryption.
- For customers lucky enough to be on Oracle WebLogic and/or Oracle SOA Suite, IWS now allows full support for Oracle Web Services Manager (OWSM) on individual Web Services. This also allows the Web Services to enjoy additional WS-Policy support, as well as, for the first time, Web Service access rules. These access rules allow you to control when and who can run the individual service using simple or complex criteria ranging from system settings (such as dates and times), security (the user and roles) or individual data elements in the payload.
- Customers migrating from XAI to IWS will be able to reuse a vast majority of their existing definitions. The only change is that each IWS service has to be registered and redeployed to the server, using the provided tools, and the URL for invoking the service will be altered. XAI can be used in parallel to allow for flexibility in migration.
- The IWS capability and the migration path for customers using XAI Inbound Services is available in a new whitepaper Migrating from XAI to IWS (Doc Id: 1644914.1) available from My Oracle Support.
Over the next few weeks I will be publishing articles highlighting capabilities for both IWS and the OSB to help implementations upgrade to these new capabilities.
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