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Create custom operators for WebSphere DataStage

Blayne Chard, Software Engineer, IBM
Blayne Chard is a intern at the IBM Silicon Valley Lab in San Jose, Calif. He received is bachelor's degree with honors in Computer Science from Victoria University of Wellington, New Zealand. Blayne currently works for the WebSphere Information Server team.

Summary:  Create a simple DataStage operator, then learn how to load the operator into DataStage Designer. An operator is the basic building block of a DataStage job. Operators can read records from input streams, modify or use the data from the input stream, and then write the results to a output stream.

Date:  08 Feb 2007
Level:  Intermediate
PDF:  A4 and Letter (1276 KB | 32 pages)Get Adobe® Reader®

Activity:  16780 views
Comments:  

Before you start

About this tutorial

This tutorial gives you an introduction to creating a basic DataStage operator. You'll start by learning how to write a basic operator, and then walk step-by-step through the process of loading the operator into the DataStage Designer.

Objectives

In this tutorial you learn:

  1. How to write a simple DataStage operator
  2. How to set up the development environment to compile and run a DataStage operator
  3. The basics of the Orchestrate Shell (OSH) scripting language for DataStage jobs
  4. How to load your operator into the DataStage Designer so you can use it on any job you create

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Prerequisites

This tutorial is written for Windows programmers whose skills and experience are at a intermediate level. You should have a solid understanding of IBM WebSphere DataStage and a working knowledge of the C++ language.

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System requirements

To run the examples in this tutorial, you need a Windows computer with the following:

  • Microsoft Visual Studio .NET 2003
  • IBM WebSphere DataStage 8.0
  • MKS Toolkit

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Before you begin

Before you start this tutorial, refer to the Download section and download the source code for this tutorial. Extract this example to a simple location, as you will be accessing it frequently. In this tutorial, the directory e:/osh/ has been used, so change any reference to this location to the location of your source code directory.

Inside the download code.zip archive, there are seven files:

  • /setup.bat -- Batch script to setup the environment
  • /myhelloworld.osh -- OSH script used to run the operator
  • /make.bat -- Batch script to compile and link the operator
  • /operator.apt -- Operator configuration file
  • /src/myhelloworld.c -- The source code for the operator
  • /input/mhw.txt -- The input file used for running the operator
  • /output/mhw.txt -- The output file used for running the operator

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static.content.url=http://www.ibm.com/developerworks/js/artrating/
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TutorialTitle=Create custom operators for WebSphere DataStage
publish-date=02082007
author1-email=bchard@us.ibm.com
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