Chapter 11: Using the Web Services Gateway with J2EE Connectors

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This chapter discusses using the Web Services Gateway in an intra-enterprise integration scenario. We are using the Web Services Gateway packaged with IBM WebSphere Application Server Network Deployment V5.0.2 in this scenario.

This chapter extends the scenario covered in the previous chapter by looking at the protocol and message conversion capabilities of the Web Services Gateway. We examine how the gateway can provide Web service access to a CICS application using the CICS ECI J2EE Connector.

11.1 Business scenario

In this scenario, ABC Electronics has a legacy system running some of its core business processes. The intention is not to replace or re-engineer this system, but to allow more modern and flexible business applications to reuse the important business processes that this core system hosts. The goal is to leverage the legacy system in a way that enables ABC Electronics to be responsive to their customer's needs.

The integration functionality to be implemented is explained in 6.2.2, "Stage II: Internal ordering on demand with delivery date" on page 119. The retail system must access, in real time, an existing wholesale system to check the availability of a product and obtain its estimated delivery date. For the scenario covered in this chapter, the legacy wholesale system is a CICS server located on the internal network.

An important requirement is to provide a standards-based interface to the system. The aim of this requirement is to allow interoperability with different technologies now and in the future. A solution meeting this requirement is vendor-independent, and easier to maintain and test using standard tools and procedures.

If possible, it is preferable to use off-the-shelf products to provide connectivity among different technologies and protocols because they are usually faster to implement, and have wider support and lower costs.



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Patterns Direct Connections for Intra- And Inter-Enterprise. Direct Connections for Intra- And Inter-Enterprise (IBM Redbook) (Paperback)
Patterns Direct Connections for Intra- And Inter-Enterprise. Direct Connections for Intra- And Inter-Enterprise (IBM Redbook) (Paperback)
ISBN: N/A
EAN: N/A
Year: 2003
Pages: 139

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