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CICS TS for Z/OS: Using CICS Service Flow Runtime Chapter 1 CICS Transaction Server for z/OS 5.5 Using CICS Service Flow Runtime IBM Note Before using this information and the product it supports, read the information in “Notices” on page 187. This edition applies to the IBM® CICS® Transaction Server for z/OS® Version 5 Release 5 (product number 5655-Y04) and to all subsequent releases and modifications until otherwise indicated in new editions. © Copyright International Business Machines Corporation 1974, 2020. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents About this PDF.....................................................................................................vii Chapter 1. Product overview..................................................................................1 The runtime environment and BTS..............................................................................................................2 The service flow project tools......................................................................................................................4 Benefits of CICS Service Flow Runtime and service flow project tools..................................................... 5 Server adapters............................................................................................................................................5 Front End Programming Interface (FEPI) server adapter..................................................................... 6 Link3270 server adapter........................................................................................................................ 7 Program link server adapter...................................................................................................................7 Queue server adapter.............................................................................................................................8 Web service server adapter....................................................................................................................8 Sequence of tasks for using CICS Service Flow Runtime and service flow project tools.......................... 9 Service flow runtime terminology............................................................................................................. 10 Chapter 2. What's new.........................................................................................13 Support for Rational Developer for IBM z Systems.................................................................................. 13 Changes to the installation........................................................................................................................ 13 Enhancements to deploying and managing service flows........................................................................13 New processing mode............................................................................................................................... 14 Enhancements to server adapters............................................................................................................ 14 Changes to error handling......................................................................................................................... 15 Chapter 3. Planning............................................................................................. 17 Discovery phase of an application transformation project.......................................................................17 Planning phase of an application transformation project.........................................................................17 Deployment patterns................................................................................................................................. 18 How the processing mode is selected.......................................................................................................19 Considering security.................................................................................................................................. 19 Audit levels.................................................................................................................................................20 Chapter 4. Installing............................................................................................21 Software prerequisites.............................................................................................................................. 21 Performing postinstallation tasks..............................................................................................................21 Customizing the setup procedure DFHMAINJ.....................................................................................22 Running the product definition procedure DFHMASET.......................................................................26 Defining the PLT program DFHMAINS................................................................................................. 27 Defining the security of transactions................................................................................................... 27 Copying the build-time templates....................................................................................................... 28 Setting up data conversion...................................................................................................................28 Configuring the autostart procedure for the Link3270 facility state cleanup programs....................29 Adding support for BIDI transformation in service flows................................................................... 30 CICS Service Flow Runtime samples listing........................................................................................ 30 Chapter 5. Deploying a service flow......................................................................33 Deploying a new service flow.................................................................................................................... 33 Installing service flows.............................................................................................................................. 34 The service flow repository file................................................................................................................. 35 iii Chapter 6. Invoking a service flow....................................................................... 37 The service requester................................................................................................................................ 37 Invoking a service flow using a CICS-supplied interface......................................................................... 38 Invoking a service flow using the CICS-MQ bridge...................................................................................39 Invoking a service flow from a Web service..............................................................................................40 Sending the request message in containers............................................................................................. 40 Sending the request message in a COMMAREA........................................................................................42 Data conversion......................................................................................................................................... 43 Data conversion using the IBM MQ interface...................................................................................... 43 Data conversion using a CICS-supplied interface............................................................................... 43 Code page conversion.......................................................................................................................... 44 Request message containers.................................................................................................................... 44 Container DFHMAC-ALLPARMS........................................................................................................... 44 Container DFHMAC-ERROR..................................................................................................................44 Container DFHMAC-LNK3270V1......................................................................................................... 45 Container DFHMAC-REQUESTV1.........................................................................................................46 Container DFHMAC-SYSPARMV1.........................................................................................................46 Container DFHMAC-USERDATA........................................................................................................... 46 Container DFHWS-DATA.......................................................................................................................46 Request message headers........................................................................................................................ 47 DFHMAH header structure...................................................................................................................47 DFHMAH field definitions.....................................................................................................................48 Chapter 7. Managing service flows......................................................................
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