Book Image

Getting Started with Talend Open Studio for Data Integration

By : Jonathan Bowen
Book Image

Getting Started with Talend Open Studio for Data Integration

By: Jonathan Bowen

Overview of this book

Talend Open Studio for Data Integration (TOS) is an open source graphical development environment for creating custom integrations between systems. It comes with over 600 pre-built connectors that make it quick and easy to connect databases, transform files, load data, move, copy and rename files and connect individual components in order to define complex integration processes. "Getting Started with Talend Open Studio for Data Integration" illustrates common uses and scenarios in a simple, practical manner and, building on knowledge as the book progresses, works towards more complex integration solutions. TOS is a code generator and so does a lot of the "heavy lifting"ù for you. As such, it is a suitable tool for experienced developers and non-developers alike. You'll start by learning how to construct some common integrations tasks ñ transforming files and extracting data from a database, for example. These building blocks form a "toolkit"ù of techniques that you will learn how to apply in many different situations. By the end of the book, once complex integrations will appear easy and you will be your organization's integration expert! Best of all, TOS makes integrating systems fun!
Table of Contents (22 chapters)
Getting Started with Talend Open Studio for Data Integration
Credits
Foreword
Foreword
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

Transforming XML to CSV


Let's start with a simple file format transformation. Many modern applications use Extensible Markup Language (XML) formats to get data in and out. Other, often simpler, systems use a Comma Separated Format (CSV). Common, desktop-based systems, such as Excel and Access, have wizards for taking data in the CSV format. We'll work through the process of taking a simple XML file and extracting its data into a comma-separated format.

Before we dive in and actually start to configure a the Studio job, let's look at the data that we want to transform. Our input file is an XML product catalogue named catalogue.xml, which is present in the datafiles of this chapter. Open this in the XML viewer of your choice. You can see that the data is pretty self-explanatory. The file contains data about Stock Keeping Units (SKUs). There are a number of repeating SKU elements, each containing an skuid, skuname, size, colour, and price.

We want to extract this data into a spreadsheet-style...