Custom Dialog for Talend Job

Some times we may require to show some dialog to the user when the job run (This wil be usefull when our requirement is not just a mesaage box and we need to get the input from the user).

Also this will be more useful if you are planning to execute your job as a stand alone Job.

You can create a dialog just by placing the below code in the Java Custom Code component.

class AboutDialog extends JDialog implements ActionListener {
  public AboutDialog(JFrame parent, String title, String message) {
    super(parent, title, true);
    if (parent != null) {
      Dimension parentSize = parent.getSize();
      Point p = parent.getLocation();
      setLocation(p.x + parentSize.width / 4, p.y + parentSize.height / 4);
    }
    JPanel    topPanel;
    JList listbox;
    JPanel messagePane = new JPanel();
    messagePane.add(new JLabel(message));
    topPanel = new JPanel();
        topPanel.setLayout( new BorderLayout() );
        getContentPane().add( topPanel );

        // Create some items to add to the list
        String    listData[] =
        {
            “Item 1”,
            “Item 2”,
            “Item 3”,
            “Item 4”
        };

        // Create a new listbox control
        listbox = new JList( listData );
        topPanel.add( listbox, BorderLayout.CENTER );
    //getContentPane().add(messagePane);
    JPanel buttonPane = new JPanel();
    JButton button = new JButton(“OK”);
    buttonPane.add(button);
    button.addActionListener(this);
        JButton button1 = new JButton(“Double OK”);
    buttonPane.add(button1);
    button1.addActionListener(this);
    getContentPane().add(buttonPane, BorderLayout.SOUTH);
    setDefaultCloseOperation(DISPOSE_ON_CLOSE);
   
    pack();
    final Toolkit toolkit = Toolkit.getDefaultToolkit();
final Dimension screenSize = toolkit.getScreenSize();
final int x = (screenSize.width – getWidth()) / 2;
final int y = (screenSize.height – getHeight()) / 2;
setLocation(x, y);
    setVisible(true);
   
  }
  public void actionPerformed(ActionEvent e) {
    globalMap.put(“testdata”,e.getActionCommand());
    if (e.getActionCommand() == “OK” )
     System.exit(0);
    setVisible(false);
    dispose();
  }
 }

AboutDialog dlg = new AboutDialog(new JFrame(), “title”, “message”);

And also dont forget to add the below lines in the advanced setting pane of the tJava component.

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JList;
import java.awt.*;

The same code can be extended to create a simple dialog to get some inut from the user and in the action listener u can code it to put the values in the global map and you can get the values from any other component from the map.