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Learning Pentaho Data Integration 8 CE

You're reading from   Learning Pentaho Data Integration 8 CE An end-to-end guide to exploring, transforming, and integrating your data across multiple sources

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Product type Paperback
Published in Dec 2017
Publisher Packt
ISBN-13 9781788292436
Length 500 pages
Edition 3rd Edition
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Author (1):
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María Carina Roldán María Carina Roldán
Author Profile Icon María Carina Roldán
María Carina Roldán
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Table of Contents (17) Chapters Close

Preface 1. Getting Started with Pentaho Data Integration FREE CHAPTER 2. Getting Started with Transformations 3. Creating Basic Task Flows 4. Reading and Writing Files 5. Manipulating PDI Data and Metadata 6. Controlling the Flow of Data 7. Cleansing, Validating, and Fixing Data 8. Manipulating Data by Coding 9. Transforming the Dataset 10. Performing Basic Operations with Databases 11. Loading Data Marts with PDI 12. Creating Portable and Reusable Transformations 13. Implementing Metadata Injection 14. Creating Advanced Jobs 15. Launching Transformations and Jobs from the Command Line 16. Best Practices for Designing and Deploying a PDI Project

Splitting the stream based on conditions


In the previous section, you learned to split the main stream of data into two or more streams. Now you will learn how to put conditions, so the rows take one way or another depending on the results of evaluating those conditions.

Splitting a stream based on a simple condition

For this subsection, we will work one more time with the Excel file exported from JIRA, containing all the new features proposed for next releases of PDI. This time, suppose that you want to implement different treatments to the data, depending on the Severity of the issues. For example:

  • With the issues that have severity Urgent or High, you want to create a list and send it by email
  • With the rest of the issues, you want to create an Excel file order by status and severity, and copy this output to a shared folder to be revised

The source of both outputs is the same, but depending on the characteristics of the issues, the rows have to take one way or the other.

Following is how you...

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