JobEntryTalendJobExecDialog.java

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 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2016 by Pentaho : http://www.pentaho.com
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 * Licensed under the Apache License, Version 2.0 (the "License");
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package org.pentaho.di.ui.job.entries.talendjobexec;

import org.apache.commons.vfs2.FileObject;
import org.apache.commons.vfs2.FileSystemException;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.ShellAdapter;
import org.eclipse.swt.events.ShellEvent;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.MessageBox;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.pentaho.di.core.Const;
import org.pentaho.di.core.util.Utils;
import org.pentaho.di.core.vfs.KettleVFS;
import org.pentaho.di.i18n.BaseMessages;
import org.pentaho.di.job.JobMeta;
import org.pentaho.di.job.entries.talendjobexec.JobEntryTalendJobExec;
import org.pentaho.di.job.entry.JobEntryDialogInterface;
import org.pentaho.di.job.entry.JobEntryInterface;
import org.pentaho.di.repository.Repository;
import org.pentaho.di.ui.core.gui.WindowProperty;
import org.pentaho.di.ui.core.widget.TextVar;
import org.pentaho.di.ui.job.dialog.JobDialog;
import org.pentaho.di.ui.job.entry.JobEntryDialog;
import org.pentaho.di.ui.spoon.Spoon;
import org.pentaho.di.ui.trans.step.BaseStepDialog;
import org.pentaho.vfs.ui.VfsFileChooserDialog;

/**
 * This dialog allows you to edit the SQL job entry settings. (select the connection and the sql script to be executed)
 *
 * @author Matt
 * @since 19-06-2003
 */
public class JobEntryTalendJobExecDialog extends JobEntryDialog implements JobEntryDialogInterface {
  private static Class<?> PKG = JobEntryTalendJobExec.class; // for i18n purposes, needed by Translator2!!

  private static final String[] EXTENSIONS = new String[] { "*.ZIP;*.zip", "*" };

  private static final String[] FILETYPES = new String[] {
    BaseMessages.getString( PKG, "JobEntryTalendJobExec.Filetype.ZIP" ),
    BaseMessages.getString( PKG, "JobEntryTalendJobExec.Filetype.All" ) };

  private Label wlName;

  private Text wName;

  private FormData fdlName, fdName;

  private Label wlFilename;

  private Button wbFilename;

  private TextVar wFilename;

  private FormData fdlFilename, fdbFilename, fdFilename;

  private Button wOK, wCancel;

  private Listener lsOK, lsCancel;

  private JobEntryTalendJobExec jobEntry;

  private Shell shell;

  private SelectionAdapter lsDef;

  private boolean changed;

  private TextVar wClassName;

  public JobEntryTalendJobExecDialog( Shell parent, JobEntryInterface jobEntryInt, Repository rep, JobMeta jobMeta ) {
    super( parent, jobEntryInt, rep, jobMeta );
    jobEntry = (JobEntryTalendJobExec) jobEntryInt;
    if ( this.jobEntry.getName() == null ) {
      this.jobEntry.setName( BaseMessages.getString( PKG, "JobEntryTalendJobExec.Name.Default" ) );
    }
  }

  public JobEntryInterface open() {
    Shell parent = getParent();
    Display display = parent.getDisplay();

    shell = new Shell( parent, props.getJobsDialogStyle() );
    props.setLook( shell );
    JobDialog.setShellImage( shell, jobEntry );

    ModifyListener lsMod = new ModifyListener() {
      public void modifyText( ModifyEvent e ) {
        jobEntry.setChanged();
      }
    };
    changed = jobEntry.hasChanged();

    FormLayout formLayout = new FormLayout();
    formLayout.marginWidth = Const.FORM_MARGIN;
    formLayout.marginHeight = Const.FORM_MARGIN;

    shell.setLayout( formLayout );
    shell.setText( BaseMessages.getString( PKG, "JobEntryTalendJobExec.Title" ) );

    int middle = props.getMiddlePct();
    int margin = Const.MARGIN;

    // Filename line
    wlName = new Label( shell, SWT.RIGHT );
    wlName.setText( BaseMessages.getString( PKG, "JobEntryTalendJobExec.Name.Label" ) );
    props.setLook( wlName );
    fdlName = new FormData();
    fdlName.left = new FormAttachment( 0, 0 );
    fdlName.right = new FormAttachment( middle, -margin );
    fdlName.top = new FormAttachment( 0, margin );
    wlName.setLayoutData( fdlName );
    wName = new Text( shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    props.setLook( wName );
    wName.addModifyListener( lsMod );
    fdName = new FormData();
    fdName.left = new FormAttachment( middle, 0 );
    fdName.top = new FormAttachment( 0, margin );
    fdName.right = new FormAttachment( 100, 0 );
    wName.setLayoutData( fdName );
    Control lastControl = wName;

    // Filename line
    wlFilename = new Label( shell, SWT.RIGHT );
    wlFilename.setText( BaseMessages.getString( PKG, "JobEntryTalendJobExec.Filename.Label" ) );
    props.setLook( wlFilename );
    fdlFilename = new FormData();
    fdlFilename.left = new FormAttachment( 0, 0 );
    fdlFilename.top = new FormAttachment( lastControl, margin );
    fdlFilename.right = new FormAttachment( middle, -margin );
    wlFilename.setLayoutData( fdlFilename );

    wbFilename = new Button( shell, SWT.PUSH | SWT.CENTER );
    props.setLook( wbFilename );
    wbFilename.setText( BaseMessages.getString( PKG, "System.Button.Browse" ) );
    fdbFilename = new FormData();
    fdbFilename.right = new FormAttachment( 100, 0 );
    fdbFilename.top = new FormAttachment( lastControl, 0 );
    // fdbFilename.height = 22;
    wbFilename.setLayoutData( fdbFilename );

    wFilename = new TextVar( jobMeta, shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    props.setLook( wFilename );
    wFilename.addModifyListener( lsMod );
    fdFilename = new FormData();
    fdFilename.left = new FormAttachment( middle, 0 );
    fdFilename.top = new FormAttachment( lastControl, margin );
    fdFilename.right = new FormAttachment( wbFilename, -margin );
    wFilename.setLayoutData( fdFilename );

    // Whenever something changes, set the tooltip to the expanded version:
    wFilename.addModifyListener( new ModifyListener() {
      public void modifyText( ModifyEvent e ) {
        wFilename.setToolTipText( jobMeta.environmentSubstitute( wFilename.getText() ) );
      }
    } );

    wbFilename.addSelectionListener( new SelectionAdapter() {
      public void widgetSelected( SelectionEvent e ) {
        try {
          FileObject fileName = null;

          try {
            String curFile = wFilename.getText();

            if ( curFile.trim().length() > 0 ) {
              fileName =
                KettleVFS.getInstance().getFileSystemManager().resolveFile(
                  jobMeta.environmentSubstitute( wFilename.getText() ) );
            } else {
              fileName = KettleVFS.getInstance().getFileSystemManager().resolveFile( Const.getUserHomeDirectory() );
            }

          } catch ( FileSystemException ex ) {
            fileName = KettleVFS.getInstance().getFileSystemManager().resolveFile( Const.getUserHomeDirectory() );
          }

          VfsFileChooserDialog vfsFileChooser =
            Spoon.getInstance().getVfsFileChooserDialog( fileName.getParent(), fileName );

          FileObject selected =
            vfsFileChooser.open( shell, null, EXTENSIONS, FILETYPES, VfsFileChooserDialog.VFS_DIALOG_OPEN_FILE );
          wFilename.setText( selected != null ? selected.getURL().toString() : Const.EMPTY_STRING );
        } catch ( FileSystemException ex ) {
          ex.printStackTrace();
        }
      }
    } );
    lastControl = wFilename;

    // Filename line
    Label wlClassName = new Label( shell, SWT.RIGHT );
    wlClassName.setText( BaseMessages.getString( PKG, "JobEntryTalendJobExec.ClassName.Label" ) );
    props.setLook( wlClassName );
    FormData fdlClassName = new FormData();
    fdlClassName.left = new FormAttachment( 0, 0 );
    fdlClassName.right = new FormAttachment( middle, -margin );
    fdlClassName.top = new FormAttachment( lastControl, margin );
    wlClassName.setLayoutData( fdlClassName );
    wClassName = new TextVar( jobMeta, shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    wClassName.setToolTipText( BaseMessages.getString( PKG, "JobEntryTalendJobExec.ClassName.Tooltip" ) );
    props.setLook( wClassName );
    wClassName.addModifyListener( lsMod );
    FormData fdClassName = new FormData();
    fdClassName.left = new FormAttachment( middle, 0 );
    fdClassName.top = new FormAttachment( lastControl, margin );
    fdClassName.right = new FormAttachment( 100, 0 );
    wClassName.setLayoutData( fdClassName );
    lastControl = wClassName;

    wOK = new Button( shell, SWT.PUSH );
    wOK.setText( BaseMessages.getString( PKG, "System.Button.OK" ) );
    FormData fd = new FormData();
    fd.right = new FormAttachment( 50, -10 );
    fd.bottom = new FormAttachment( 100, 0 );
    fd.width = 100;
    wOK.setLayoutData( fd );

    wCancel = new Button( shell, SWT.PUSH );
    wCancel.setText( BaseMessages.getString( PKG, "System.Button.Cancel" ) );
    fd = new FormData();
    fd.left = new FormAttachment( 50, 10 );
    fd.bottom = new FormAttachment( 100, 0 );
    fd.width = 100;
    wCancel.setLayoutData( fd );

    BaseStepDialog.positionBottomButtons( shell, new Button[] { wOK, wCancel }, margin, wClassName );
    // Add listeners
    lsCancel = new Listener() {
      public void handleEvent( Event e ) {
        cancel();
      }
    };
    lsOK = new Listener() {
      public void handleEvent( Event e ) {
        ok();
      }
    };

    wCancel.addListener( SWT.Selection, lsCancel );
    wOK.addListener( SWT.Selection, lsOK );

    lsDef = new SelectionAdapter() {
      public void widgetDefaultSelected( SelectionEvent e ) {
        ok();
      }
    };

    wName.addSelectionListener( lsDef );
    wFilename.addSelectionListener( lsDef );

    // Detect X or ALT-F4 or something that kills this window...
    shell.addShellListener( new ShellAdapter() {
      public void shellClosed( ShellEvent e ) {
        cancel();
      }
    } );

    getData();

    BaseStepDialog.setSize( shell );

    shell.open();
    props.setDialogSize( shell, "JobEntryTalendJobExec.DialogSize" );
    while ( !shell.isDisposed() ) {
      if ( !display.readAndDispatch() ) {
        display.sleep();
      }
    }
    return jobEntry;
  }

  public void dispose() {
    WindowProperty winprop = new WindowProperty( shell );
    props.setScreen( winprop );
    shell.dispose();
  }

  /**
   * Copy information from the meta-data input to the dialog fields.
   */
  public void getData() {
    wFilename.setText( Const.NVL( jobEntry.getFilename(), "" ) );
    wClassName.setText( Const.NVL( jobEntry.getClassName(), "" ) );

    wName.setText( Const.NVL( jobEntry.getName(), "" ) );

    wName.selectAll();
    wName.setFocus();
  }

  private void cancel() {
    jobEntry.setChanged( changed );
    jobEntry = null;
    dispose();
  }

  private void ok() {
    if ( Utils.isEmpty( wName.getText() ) ) {
      MessageBox mb = new MessageBox( shell, SWT.OK | SWT.ICON_ERROR );
      mb.setText( BaseMessages.getString( PKG, "System.StepJobEntryNameMissing.Title" ) );
      mb.setMessage( BaseMessages.getString( PKG, "System.JobEntryNameMissing.Msg" ) );
      mb.open();
      return;
    }

    jobEntry.setName( wName.getText() );
    jobEntry.setFilename( wFilename.getText() );
    jobEntry.setClassName( wClassName.getText() );
    dispose();
  }

  public boolean evaluates() {
    return true;
  }

  public boolean isUnconditional() {
    return false;
  }

}