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Talend Open Studio Cookbook

You're reading from   Talend Open Studio Cookbook Getting familiar with Talend Open Studio will greatly enhance your data handling and integration capabilities. This is the perfect reference book for beginners and intermediates with a host of practical recipes that clarify even complex features.

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Product type Paperback
Published in Oct 2013
Publisher Packt
ISBN-13 9781782167266
Length 270 pages
Edition 1st Edition
Languages
Tools
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Author (1):
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Rick Barton Rick Barton
Author Profile Icon Rick Barton
Rick Barton
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Toc

Table of Contents (16) Chapters Close

Preface 1. Introduction and General Principles FREE CHAPTER 2. Metadata and Schemas 3. Validating Data 4. Mapping Data 5. Using Java in Talend 6. Managing Context Variables 7. Working with Databases 8. Managing Files 9. Working with XML, Queues, and Web Services 10. Debugging, Logging, and Testing 11. Deploying and Scheduling Talend Code 12. Common Mistakes and Other Useful Hints and Tips A. Common Type Conversions
B. Management of Contexts Index

Using tJava to display status messages and variables


tJava is a very useful component for logging purposes, because it can be used in its own sub job. This enables tJava to be used to print job status information at given points in the process. The following recipe demonstrates this.

Getting ready

Open the jo_cook_ch10_0070_loggingWithtJava job.

How to do it...

The steps for using tJava to display status messages and variables are as follows:

  1. Open tJava_1 and add the following code:

    System.out.println("\n\nSearching directory "+context.cookbookData+"chapter10 for files matching wildcard *jo*\n\n");
  2. Open tJava_2 and add the following code:

    System.out.println("Processing file: "+((String)globalMap.get("tFileList_1_CURRENT_FILE")));
  3. Open tJava_3 and add the following code:

    System.out.println("\n\nCompleted......"+((Integer)globalMap.get("tFileList_1_NB_FILE"))+" files found\n\n");    

How it works...

tJava_1 and tJava_3 simply print out process status information (starting process and process end). tJava_2...

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