Application Development for CICS Web Services

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This IBM® Redbooks® publication focuses on developing Web service applications in CICS®. It takes the broad view of developing and modernizing CICS applications for XML, Web services, SOAP, and SOA support, and lays out a reference architecture for developing these kinds of applications. We start by discussing Web services in general, then review how CICS implements Web services. We offer an overview of different development approaches: bottom-up, top-down, and meet-in-the-middle. After laying out the foundations, we review the CICS catalog manager sample application, as this is the application we used as a basis. We then look at how you would go about exposing a CICS application (namely, the catalog manager sample application) as a Web service provider, again looking at the different approaches. The book then steps through the process of creating a CICS Web service requester. We close out by looking at CICS application aggregation (including 3270 applications) with Rational® Application Developer for System z®. The final chapter offers hints and tips to help you when implementing this technology. About The Author Chris Rayns is an IT Specialist and the CICS project leader at the International Technical Support Organization, Poughkeepsie Center. He writes extensively on all areas of CICS. Before joining the ITSO, Chris worked in IBM Global Services in the United Kingdom as a CICS IT Specialist. George Burgess is currently working as the CICS Transaction Server on z/OS® Subject Matter Expert for the Peoples Republic of China and is based in Beijing. He has 24 years of experience as an Application Programmer, Systems Programmer, CICS Developer and OMEGAMON® XE for CICS Developer. His areas of expertise include Common Business Oriented Language (COBOL), CICS, DB2®, WebSphere® MQ, IMS™ DL/1, VSAM, JCL,z/OS, and OMEGAMON. Paul Cooper has been a member of the CICS development team in IBM Hursley for over 10 years. He has spent most of that time working on the Java™ support in CICS and the Web services support in CICS. He is often involved in customer support activities around CICS Web services Tony Fitzgerald is a Software Support Specialist in the UK. He has worked for IBM as CICS Level 2 Support for five years and has 15 years of experience working with CICS and DB2 as a Systems Programmer and an Applications Programmer. He holds a degree in Computer Science and Management Science from the University of Keele. Table of Contents Chapter 1. Overview of Web services Chapter 2. CICS implementation of Web services Chapter 3. Development approaches Chapter 4. CICS catalog manager example application Chapter 5. Rational Developer for System z (RDz) Chapter 6. Exposing the Catalog Sample CICS application as a Web service Chapter 7. Create a CICS Web service requester application using the Catalog Sample Chapter 8. Componentization Chapter 9. New SOA patterns for CICS TS V4.1 Chapter 10. Hints and tips Chapter 11. COBOL samples Appendix A. Sample Web services Appendix B. Sample COBOL programs