• Pentaho Data Integration (PDI), it is also called as Kettle. Pentaho responsible for the Extract, Transform and Load (ETL) processes to the PDI component.
• Data warehouses environments are most frequently used by this ETL tools. Other purposes are also used this PDI: Migrating data between applications or databases.

• Lets create a simple transformation to convert a CSV into an XML file.
• Our Transformation has to do the following:

• • Read the CSV file.
  • Build the greetings message.
  • Save the greetings in the XML file.

• Now Start the Transformation:

• • Left workspace is the Palette, Select the Input category.

• • Drag the CSV file onto the workspace on the right.

• • Select the Scripting category.

• • Drag the Modified JavaScript Value icon to the workspace.

• • Select the Output category.

• • Drag the XML Output icon to the workspace.

• Now link the CSV file input with the Modified Java Script Value by creating a Hop:

• • Select the first Step.

• • Hold the Shift key and drag the icon onto the second Step.

• • Link the Modified Java Script Value with the XML Output via this same process.

• • Double-click on the CSV file input. The configuration window for the step will appear. The file location will be indicated, file format (e.g. delimiters, enclosure characters, etc.) and column metadata (e.g. column name, data type, etc).

• • Change the step name with one that is more representative of this Step’s function. In this case, list out type in name list.

• • For the Filename field, click Browse and select the input file.

• • Click Get Fields to add the list of column names of the input file to the grid. By default, the Step assumes that the file has headers (the Header row present checkbox is checked).

• • The grid has now the names of the columns of your file.

• • Click Preview to ensure that the file will be read as expected. The file will be appear then data showing in window. Click OK to finish.

• • Double-click on the Modified JavaScript Value.

• • The Step configuration window will appear. This is different compare to the previous Step config window in that it allows to write JavaScript code. To build the message “Hello, ” concatenated with each of the names.

• • Name this Step Greetings.

• • The main area of the configuration window is for coding. To the left, there is a tree with a set of available functions that you can use in the code. In particular, the last two branches have the input and output fields, ready to use in the code. In this example there are two fields: last_name and name. Write the following code:

• • Variable created in the code through the bottom. Variable named msg we have created. This message will be send to the output file, the variable name in the grid to write.

• • Configuring the Modified Java Script Value step on click ok to finish.

• • Select the Step you just configured. To check that the new field will leave this Step, we will now see the Input and Output Fields. Input Fields are the data columns that reach a Step. Output Fields are the data columns that leave a Step. Simply transform the input data this Steps. In this case, the input and output fields are usually the same. There are Steps, however, to the Output that add fields – Calculator, for example. Filter or combine data for other Steps that causing that the Output has less fields that the Input – Group by, for example.

• • On click-right the Step to bring up a context menu.

• • Input Fields show to select. The CSV file input Step come to the Input Fields are last_name and name.

• • Output Fields show to select. We see that not only do we have the existing fields, but also the new msg field.

• • Double-click the XML Output. This kind of step will appear while configuration in window. To set the name and location of the output file, and we want to include which of the fields that to be established. We may include all or some of the fields.

• • Name the Step File: Greetings.

• • To write in the File box:

• • Click Get Fields to fill the grid with the three input fields.

• • Save the Transformation again.

• • Click on the RUN button on the menu bar and Launch the transformation.

• • We also create a Job which may be used to schedule multiple transformations and then run it.

• The wizard used to install PDI. PDI software install by wizard, the Tomcat web application server, and PostgreSQL, which is the default database that communities the DI Repository. The DI Repository holds audit, scheduling, and solution content data.
• PDI Installation steps are same for the Windows, Linux, and Mac platforms.

• Make sure that logged into the computer then install PDI. To install software that allows while logged on with an account. On Windows, this is typically an account that has administrator privileges. On Linux, create an pentaho to log in.

• Download the correct installation wizard’s file an operating system.

• • Windows: pdi-6.0.1-x64.exe.
  • Linux: pdi-6.0.1-x64.bin.
  • Mac: pdi-6.0.1-x64.app.tar.gz.

• Using Linux, make sure that have the appropriate permission to execute the file. Open a Terminal window, navigate to the directory just download the file, then the prompt to type the following commands.

• Launch the installation wizard.

• • PDI on Windows: Open Windows Explorer and navigate to the installation file download. To launch on double-click the pdi-6.0.1-x64.exe file.
  • PDI on Mac: pdi-6.0.1-x64.app.tar.gz archive, pdi-6.0.1-x64.app on double click the file to install will start.
  • PDI on Linux and computer can display graphics: In a windows to open a Terminal and navigate to the installation file download. In the prompt type this command, and press Enter.

PDI on Linux and computer cannot display graphics: In a windows to open a Terminal and navigate to the installation file download. Enter one of these commands at the prompt, and press Enter. If GTK libraries on the system type this command and want to use the GTK Toolkit:

If do not have GTK libraries on the system type this command or if we want to use OpenMotif instead:

• The Pentaho Wizard splash screen appears, then the Welcome window. Click Next.

• License agreement to read. Then continue, to select the license agreement to accept, then Next button to click.

• When window appears the Installation Folder, do one of these things.

• Accept the default directory and click Next to continue.

• While using a different directory by entering the path in the text box or click Browse to navigate to the place where want PDI to be installed. Then click Next button to continue.

• When the PostgreSQL postgres user password window appears, type the password want to assign to the PostgreSQL database’s admin user. Wizard cannot access these type of characters in the password:

• Next button click to continue. window appears for Ready to Install. Next button click to install the software.

• Window appears the Generating Evaluation Licenses as evaluation licenses are installed. If they are not able to install, since the evaluation licenses were not installed in a window appears to shows.

• Window appears the Installation in Progress. Make sure the software installs completely before moving on to the next step.

• Window appears to show the Installation Complete. To view Spoon by to click the Open Pentaho Data Integration. Then to click Finish.

• Launched spoon.

• Trouble occur when to the installer, to check the documentation.

• To verify the installation the following steps:

• Open a file explorer window like Windows Explorer or a Command Prompt or Terminal windows.

• Navigate to the directory where to installed PDI, then compare this directory structure

pentaho/	

	pentaho/design-tools/	

	pentaho/design-tools/data-integration/	

	pentaho/documentation/	

	pentaho/java/	

	pentaho/jdbc-distribution	

	pentaho/license-installer/	

	pentaho/licenses/	

	pentaho/monetdb/	

	pentaho/postgresql/	

	pentaho/scripts/	

	pentaho/server/	

	pentaho/server/data-integration-server/	

	pentaho/server/data-integration-server/logs/	

	pentaho/server/data-integration-server/pentaho-solutions/	

	pentaho/server/data-integration-server/scripts/	

	pentaho/server/data-integration-server/tomcat/	

• Open the installation-summary.txt file. Installed are listed plugins and design tools.

• Directories and location of files to review:

• Top-level files /pentaho directory:

• • ctlscript.sh: The status of pentaho services are starts, stops, restarts, and shows. Available on Linux only.
  • installation-summary.txt: In the summary contains the information screen installation process to be end.
  • uninstall: Remove what are they install.

• Specific programs of locations :

• • DI Server: /pentaho/server/data-integration-server/
  • Spoon: /pentaho/design-tools/data-integration/
  • License Installer: /pentaho/license-installer/

• Logs of Location:

• • DI Server Logs: pentaho/server/data-integration-server/logs/
  • Tomcat Logs for DI Server: pentaho/server/data-integration-server/tomcat/logs/

• JDBC drivers of location:

• • DI Server: pentaho/server/data-integration-server/tomcat/lib
  • Spoon: pentaho/design-tools/data-integration/lib/

• Port Number are default:

• • 5434: PostgreSQL Server.
  • 9080: DI Server Port.
  • 9001: HSQL Server Port.
  • 9092: Embedded H2 Database.
  • 50000 or 50006: Monet Database Port.

• Pentaho to be uninstall the following steps:

• Pentaho directory to navigate, and run the uninstall file.

• Wizard is launched to uninstall.

• Delete data files are indicates in the prompted.

• Then restart the computer.