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Getting Started with Talend Open Studio for Data Integration
Getting Started with Talend Open Studio for Data Integration

Getting Started with Talend Open Studio for Data Integration: This is the complete course for anybody who wants to get to grips with Talend Open Studio for Data Integration. From the basics of transferring data to complex integration processes, it will give you a head start.

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Getting Started with Talend Open Studio for Data Integration

Chapter 2. Working with Talend Open Studio

Now that we have the Studio installed, we can start to build integration jobs. However, before we dive straight in with some complex developments, let's get familiar with the working environment, get ourselves organized, and start with something simple.

In this chapter, we will:

  • Learn how to log on to the Studio

  • Get a tour of the Studio's environment and find out the different elements that make up the Studio tool

  • Learn how to create a new project and a new job

  • Learn about metadata—what it is and how it is used in the Studio

Studio definitions


Let's start with a few definitions to make everything clear:

  • A workspace is a directory on your computer that contains one or more projects

  • A project is a logical grouping of one or more jobs

  • A job is a group or one or more components that, when executed, implement a data flow or integration process

We will create each of these as we work through the chapter.

Starting the Studio


The Studio is a cross-platform development tool and supports Windows, Linux, and Mac OS in both 32-bit and 64-bit versions. To start the Studio, go to the directory where the Studio was installed, and double-click on the executable appropriate for your operating system.

  1. When you start the Studio for the first time, you will be presented with a license notification. Click on Accept to proceed. We will then see the first-time start up screen and we are presented with a few options at this point. We can:

    • Import a demo project

    • Create a new project

    • Change some basic settings

  2. We will start by amending some settings. Click on Advanced. You will see the following screen:

  3. The first thing we will do is change the workspace location. You can leave it with the default value if you want, but the path is a little convoluted, so it is worth changing it. Click on the Change button and select an appropriate path, such as C:\Talend\Workspace.

  4. You will then see a prompt to restart the Studio...

Tour of the Studio


Let's look at the Studio environment. To help illustrate the different windows and views of the Studio tool, we will open a job from the demo project.

In the left-hand column of the Studio tool, we will see the Repository window. The Repository contains all of the artifacts associated with a project—Job Designs, Business Models, Metadata, and so on—as shown in the following screenshot:

Expand the Job Designs section of the Repository and double-click on the job named priorTest 0.1. This will open the priorTest job as shown in the following screenshot:

The Repository

As noted earlier, the Repository window, shown in the top-left of the Studio, contains all of the artifacts associated with a project. This will typically include:

  • One or more job definitions

  • Metadata items such as database connection details, FTP connection details, and file schema definitions

  • Reusable code snippets

  • Business Models that describe the non-technical workflows of a data integration job

  • Contexts—global...

Creating a new project


Let's now create a new project, which we will use as a container for all of the example jobs illustrated in later chapters of the book.

Start the Studio (or if it is already open, go to File | Switch Project) and wait for the logon screen to appear. We will see our demo project in the list of projects but we won't open this project; instead, we'll create a new one. Click on the Create button as shown in the following screenshot:

You will be prompted to enter a project name. Enter BEGINNERSGUIDE, optionally adding a project description if you wish, and click on the Finish button. You'll now see the new project in the project list. Highlight the BEGINNERSGUIDE project and click on the Open button.

Once the Studio is open, we will see the standard Studio layout as described previously. Let's create a simple job to illustrate the development process and give you some hands-on experience with the Studio.

Creating an example job


The Studio helpfully describes the development process for you on the default design workspace window.

The basic process is as follows:

  1. Create a job in the Repository.

  2. Drop components from the Palette onto the design workspace of your job.

  3. Configure the properties of the components.

  4. Run the job and view the results.

Simple, right?

In the time-honored tradition of programming books, our first job will be a simple "hello world" job. Follow the given steps:

  1. In the Repository, right-click on Job Designs and select Create Job.

  2. We will be presented with the New Job window as shown in the following screenshot:

  3. Enter HelloWorld into the Name field and click on Finish. Our new job will open, showing the design workspace window.

  4. In the Palette, search for message. In the Misc folder, we have a component named tMsgBox. Drag this onto the design workspace.

  5. Click on the message box component and click on the Component tab of the configuration area below the design workspace. We will see...

Metadata


For the final part of this chapter, let's look at how the Studio uses "metadata". Metadata is defined as "data about data". It describes the data, but isn't the data itself. In the Studio context, metadata refers to reusable configurations that describe the data, its attributes, or its containers. For example, we could define metadata in the Studio that describes an XML schema, a web service definition, or an FTP connection. Once defined, these configurations can be used across multiple Studio jobs.

The benefit of metadata components is that they save developers time as they are defined once and used many times. They also provide a single place to update configurations for many jobs. For example, if the password to an FTP account changes and this FTP connection is used in 10 different jobs, the details would have to be updated 10 times. However, if you store this configuration in a single metadata component, it only needs to be updated once.

Let's work through an example of metadata...

Summary


In this chapter, we looked at the Studio working environment and introduced some of the standard tasks you will undertake as a developer, such as creating projects, jobs, and metadata. We created a "Hello World" job that illustrated a simple development process and executed the job to see how the Studio presents its results.

In the next chapter, we will get truly hands on with the Studio and create some jobs that transform data files.

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Key benefits

  • Develop complex integration jobs without writing code
  • Go beyond "extract, transform and load"ù by constructing end-to-end integrations
  • Learn how to package your jobs for production use

Description

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!

Who is this book for?

Are you a developer, business analyst, project manager, business intelligence specialist, system architect or a consultant who needs to undertake integration projects, then this book is for you. The book assumes a certain level of familiarity with Relational database management systems with SQL and experience and Java.

What you will learn

  • How to transform data files from one format to another
  • Getting data in and out of a relational database
  • Using common data operations such as filtering, sorting and aggregating
  • Managing files ñ moving, copying, renaming and deleting
  • Adding flow logic to integration jobs, including "if/then"ù operations and sequence dependencies
  • How to use dynamic variables, avoiding hard-coded routines
  • Using TOS in real-life scenarios with lots of tips and tricks
  • Learn how to integrate data to and from many different sources
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Publication date : Nov 06, 2012
Length: 320 pages
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Language : English
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ISBN-13 : 9781849514729
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Table of Contents

10 Chapters
Knowing Talend Open Studio Chevron down icon Chevron up icon
Working with Talend Open Studio Chevron down icon Chevron up icon
Transforming Files Chevron down icon Chevron up icon
Working with Databases Chevron down icon Chevron up icon
Filtering, Sorting, and Other Processing Techniques Chevron down icon Chevron up icon
Managing Files Chevron down icon Chevron up icon
Job Orchestration Chevron down icon Chevron up icon
Managing Jobs Chevron down icon Chevron up icon
Global Variables and Contexts Chevron down icon Chevron up icon
Worked Examples Chevron down icon Chevron up icon

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dwarch Aug 03, 2013
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I had used Talend years ago in an enterprise data warehouse environment (enterprise edition), and bought this book as a refresher. I was more than pleased. The content in the book covers what most people want to use the product for - database migrations, data transformations, reading and writing files of various formats, merge, sort, aggregate, normalize, denormalize, and several other common ETL tasks. Examples are used throughout the book to demonstrate all these. Chapter 10 Worked Examples was particularly useful, as it brought together all of the concepts in the book into real world complex ETL project examples. Throughout the book, the author was concise in explaining each concept and example, without all the fluff typically found in other larger "bible" books that many times regurgitate product manuals. This book is real world Talend ETL. Not to be cliche, but this book is definitely a must read for developers who need to get a great jump start in Talend. I got through it in a weekend, which was perfect for me.
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Motif Jul 22, 2015
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Excellent book. If you follow all the exercises you will get up to speed quickly on the tool.
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T. Battle Aug 01, 2016
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This book was exactly what I needed. Perfect!!!
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Amy Dunham Oct 26, 2017
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good
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Oleg Zamsky Mar 21, 2013
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Very good and comrehensive book. It covers most of the topics for integration. Does not have much on MDM, but did not expect it in a first place.
Amazon Verified review Amazon
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