z/TPF Data Event Starter Kit

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The z/TPF data event starter kit demonstrates how an example data event is defined and deployed on your z/TPF system and how z/TPF can automatically create data events as an application updates a sample database. To complete the end-to-end example, the starter kit also contains a sample event consumer that receives the data events created by your z/TPF system and processes the data events on a remote system.

The starter kit contains all of the specifications, DFDL schema files, and custom user programs required to define and deploy an example data event on your z/TPF system. Once the data event is deployed, the DEVT driver can be used to easily create data events. The DEVT driver represents the application and updates the sample z/TPFDF Credit database based on DEVT driver commands that are entered on the z/TPF command line. When the credit database (the z/TPFDF DR12ED file) is updated, the z/TPF system automatically captures the changed z/TPFDF logical records (LRECs). The captured LRECs are packaged as a data event named Credit_Trxns, event user context is added by an application enrichment program, and the resulting data event is sent to the event consumer over a TCP/IP connection.

The DFDLtoXMLSample sample Java application represents the event consumer, reads data events from the TCP/IP connection, and creates an XML document for each data event that is received from the z/TPF system. To create the XML document, the DFDLtoXMLSample application uses the IBM DFDL parser in the IBM Integration Bus and DFDL schema files to parse the binary data event that is received from z/TPF. By using the IBM DFDL parser and schema files, the DFDLtoXMLSample application can identify and format all of the structures and fields in the binary data event and create an XML document based on the data event.