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You're reading from  Talend Open Studio Cookbook

Product typeBook
Published inOct 2013
Reading LevelIntermediate
PublisherPackt
ISBN-139781782167266
Edition1st Edition
Languages
Java
Tools
Talend
Concepts
Data Analysis
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Author (1)
Rick Barton
Rick Barton
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Rick Barton

Rick Barton is a freelance consultant who has specialized in data integration and ETL for the last 13 years as part of an IT career spanning over 25 years. After gaining a degree in Computer Systems from Cardiff University, he began his career as a firmware programmer before moving into Mainframe data processing and then into ETL tools in 1999. He has provided technical consultancy to some of the UKs largest companies, including banks and telecommunications companies, and was a founding partner of a Big Data integration consultancy. Four years ago he moved back into freelance development and has been working almost exclusively with Talend Open Studio and Talend Integration Suite, on multiple projects, of various sizes, in UK. It is on these projects that he has learned many of the lessons that can be found in this, his first book.
Read more about Rick Barton

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Processing control/validation files

Some organizations prefer to use a companion (control/validation) file containing file information instead of storing the information in the file header or trailer. This means that the detail file is much simpler to process, because it is a normal flat file.

In this recipe, the control file has the same name as the detail file; however, it is suffixed with .ctrl rather than .txt. This recipe shows how the control file is processed.

Getting ready

Open the jo_cook_ch08_0130_controlFile job. You will see that tFileList_1 is looking for files with the mask of chapter08_jo_0130_customerData*.txt. There are two of these in the directory.

How to do it...

The steps for processing control/validation files

  1. Copy the first sub job.

  2. Change the new tFileList mask to StringHandling.EREPLACE(((String)globalMap.get("tFileList_1_CURRENT_FILE")),"txt","ctrl").

  3. Open tJava_2 and change the command to System.out.println("Found control file: "+((String)globalMap.get("tFileList_2_CURRENT_FILE...

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Talend Open Studio Cookbook
Published in: Oct 2013Publisher: PacktISBN-13: 9781782167266
© 2013 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Rick Barton

Rick Barton is a freelance consultant who has specialized in data integration and ETL for the last 13 years as part of an IT career spanning over 25 years. After gaining a degree in Computer Systems from Cardiff University, he began his career as a firmware programmer before moving into Mainframe data processing and then into ETL tools in 1999. He has provided technical consultancy to some of the UKs largest companies, including banks and telecommunications companies, and was a founding partner of a Big Data integration consultancy. Four years ago he moved back into freelance development and has been working almost exclusively with Talend Open Studio and Talend Integration Suite, on multiple projects, of various sizes, in UK. It is on these projects that he has learned many of the lessons that can be found in this, his first book.
Read more about Rick Barton

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