MonetDBAgileMartDialog.java

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 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2013 by Pentaho : http://www.pentaho.com
 *
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 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
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 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
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package org.pentaho.di.ui.trans.steps.monetdbagilemart;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.FocusAdapter;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.FocusListener;
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.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.pentaho.di.core.Const;
import org.pentaho.di.i18n.BaseMessages;
import org.pentaho.di.trans.TransMeta;
import org.pentaho.di.trans.step.StepDialogInterface;
import org.pentaho.di.trans.step.StepMeta;
import org.pentaho.di.trans.steps.monetdbbulkloader.MonetDBBulkLoaderMeta;
import org.pentaho.di.ui.core.widget.ComboVar;
import org.pentaho.di.ui.core.widget.TextVar;
import org.pentaho.di.ui.trans.steps.monetdbbulkloader.MonetDBBulkLoaderDialog;

/**
 * Dialog class for the MonetDB bulk loader step.
 *
 */
public class MonetDBAgileMartDialog extends MonetDBBulkLoaderDialog implements StepDialogInterface {
  private static Class<?> PKG = MonetDBBulkLoaderMeta.class; // for i18n purposes, needed by Translator2!!

  // private static final String DEFAULT_BUFFER_SIZE = "1000";
  private static final String DEFAULT_ENCODING = "UTF-8";
  private static final String DEFAULT_LOG_FILE = "MonetDBAgileMart.log";

  private ComboVar wConnection;

  private Label wlSchema;
  private TextVar wSchema;
  private FormData fdlSchema, fdSchema;

  private Label wlTable;
  private Button wbTable;
  private TextVar wTable;
  private FormData fdlTable, fdbTable, fdTable;

  private Label wlBufferSize;
  private TextVar wBufferSize;
  private FormData fdBufferSize, fdlBufferSize;

  private MonetDBBulkLoaderMeta input;

  // private static final String[] ALL_FILETYPES = new String[] { BaseMessages.getString(PKG,
  // "MonetDBBulkLoaderDialog.Filetype.All") };

  public MonetDBAgileMartDialog( Shell parent, Object in, TransMeta transMeta, String sname ) {
    super( parent, in, transMeta, sname );
    input = (MonetDBBulkLoaderMeta) in;
  }

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

    shell = new Shell( parent, SWT.DIALOG_TRIM | SWT.RESIZE | SWT.MAX | SWT.MIN );
    props.setLook( shell );
    setShellImage( shell, input );

    ModifyListener lsMod = new ModifyListener() {
      public void modifyText( ModifyEvent e ) {
        input.setChanged();
      }
    };
    FocusListener lsFocusLost = new FocusAdapter() {
      public void focusLost( FocusEvent arg0 ) {
        setTableFieldCombo();
      }
    };
    changed = input.hasChanged();

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

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

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

    // Stepname line
    wlStepname = new Label( shell, SWT.RIGHT );
    wlStepname.setText( BaseMessages.getString( PKG, "MonetDBBulkLoaderDialog.Stepname.Label" ) );
    props.setLook( wlStepname );
    fdlStepname = new FormData();
    fdlStepname.left = new FormAttachment( 0, 0 );
    fdlStepname.right = new FormAttachment( middle, -margin );
    fdlStepname.top = new FormAttachment( 0, margin );
    wlStepname.setLayoutData( fdlStepname );
    wStepname = new Text( shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    wStepname.setText( stepname );
    props.setLook( wStepname );
    wStepname.addModifyListener( lsMod );
    fdStepname = new FormData();
    fdStepname.left = new FormAttachment( middle, 0 );
    fdStepname.top = new FormAttachment( 0, margin );
    fdStepname.right = new FormAttachment( 100, 0 );
    wStepname.setLayoutData( fdStepname );

    // Connection line
    wConnection = addConnectionLine( shell, wStepname, middle, margin, null, transMeta );
    // if (input.getDatabaseMeta()==null && transMeta.nrDatabases()==1) wConnection.select(0);

    wConnection.addModifyListener( lsMod );

    // Schema line...
    wlSchema = new Label( shell, SWT.RIGHT );
    wlSchema.setText( BaseMessages.getString( PKG, "MonetDBBulkLoaderDialog.TargetSchema.Label" ) );
    props.setLook( wlSchema );
    fdlSchema = new FormData();
    fdlSchema.left = new FormAttachment( 0, 0 );
    fdlSchema.right = new FormAttachment( middle, -margin );
    fdlSchema.top = new FormAttachment( wConnection, margin * 2 );
    wlSchema.setLayoutData( fdlSchema );

    wSchema = new TextVar( transMeta, shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    props.setLook( wSchema );
    wSchema.addModifyListener( lsMod );
    wSchema.addFocusListener( lsFocusLost );
    fdSchema = new FormData();
    fdSchema.left = new FormAttachment( middle, 0 );
    fdSchema.top = new FormAttachment( wConnection, margin * 2 );
    fdSchema.right = new FormAttachment( 100, 0 );
    wSchema.setLayoutData( fdSchema );

    // Table line...
    wlTable = new Label( shell, SWT.RIGHT );
    wlTable.setText( BaseMessages.getString( PKG, "MonetDBBulkLoaderDialog.TargetTable.Label" ) );
    props.setLook( wlTable );
    fdlTable = new FormData();
    fdlTable.left = new FormAttachment( 0, 0 );
    fdlTable.right = new FormAttachment( middle, -margin );
    fdlTable.top = new FormAttachment( wSchema, margin );
    wlTable.setLayoutData( fdlTable );

    wbTable = new Button( shell, SWT.PUSH | SWT.CENTER );
    props.setLook( wbTable );
    wbTable.setText( BaseMessages.getString( PKG, "MonetDBBulkLoaderDialog.Browse.Button" ) );
    fdbTable = new FormData();
    fdbTable.right = new FormAttachment( 100, 0 );
    fdbTable.top = new FormAttachment( wSchema, margin );
    wbTable.setLayoutData( fdbTable );
    wTable = new TextVar( transMeta, shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    props.setLook( wTable );
    wTable.addModifyListener( lsMod );
    wTable.addFocusListener( lsFocusLost );
    fdTable = new FormData();
    fdTable.left = new FormAttachment( middle, 0 );
    fdTable.top = new FormAttachment( wSchema, margin );
    fdTable.right = new FormAttachment( wbTable, -margin );
    wTable.setLayoutData( fdTable );

    // Buffer size file line
    wlBufferSize = new Label( shell, SWT.RIGHT );
    wlBufferSize.setText( BaseMessages.getString( PKG, "MonetDBBulkLoaderDialog.BufferSize.Label" ) );
    props.setLook( wlBufferSize );
    fdlBufferSize = new FormData();
    fdlBufferSize.left = new FormAttachment( 0, 0 );
    fdlBufferSize.top = new FormAttachment( wbTable, margin );
    fdlBufferSize.right = new FormAttachment( middle, -margin );
    wlBufferSize.setLayoutData( fdlBufferSize );
    wBufferSize = new TextVar( transMeta, shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    props.setLook( wBufferSize );
    wBufferSize.addModifyListener( lsMod );
    fdBufferSize = new FormData();
    fdBufferSize.left = new FormAttachment( middle, 0 );
    fdBufferSize.top = new FormAttachment( wbTable, margin );
    fdBufferSize.right = new FormAttachment( 100, 0 );
    wBufferSize.setLayoutData( fdBufferSize );

    // THE BUTTONS
    wOK = new Button( shell, SWT.PUSH );
    wOK.setText( BaseMessages.getString( PKG, "System.Button.OK" ) );
    wCancel = new Button( shell, SWT.PUSH );
    wCancel.setText( BaseMessages.getString( PKG, "System.Button.Cancel" ) );

    setButtonPositions( new Button[] { wOK, wCancel }, margin, null );

    final Runnable runnable = new Runnable() {
      public void run() {
        StepMeta stepMeta = transMeta.findStep( stepname );
        if ( stepMeta != null ) {
          setComboBoxes();
        }
      }
    };
    new Thread( runnable ).start();

    // Add listeners
    lsOK = new Listener() {
      public void handleEvent( Event e ) {
        ok();
      }
    };
    lsCancel = new Listener() {
      public void handleEvent( Event e ) {
        cancel();
      }
    };

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

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

    wStepname.addSelectionListener( lsDef );
    wSchema.addSelectionListener( lsDef );
    wTable.addSelectionListener( lsDef );
    wBufferSize.addSelectionListener( lsDef );

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

    wbTable.addSelectionListener( new SelectionAdapter() {
      public void widgetSelected( SelectionEvent e ) {
        getTableName();
      }
    } );

    // Set the shell size, based upon previous time...
    setSize();

    getData();
    setTableFieldCombo();
    input.setChanged( changed );

    shell.open();
    while ( !shell.isDisposed() ) {
      if ( !display.readAndDispatch() ) {
        display.sleep();
      }
    }
    return stepname;
  }

  /**
   * Copy information from the meta-data input to the dialog fields.
   */
  public void getData() {
    if ( log.isDebug() ) {
      logDebug( BaseMessages.getString( PKG, "MonetDBBulkLoaderDialog.Log.GettingKeyInfo" ) );
    }

    wBufferSize.setText( "" + input.getBufferSize() );

    if ( input.getSchemaName() != null ) {
      wSchema.setText( input.getSchemaName() );
    }
    if ( input.getTableName() != null ) {
      wTable.setText( input.getTableName() );
    }
    if ( input.getDbConnectionName() != null ) {
      wConnection.setText( input.getDbConnectionName() );
    }

    wStepname.selectAll();
    wStepname.setFocus();
  }

  @Override
  protected void setTableFieldCombo() {
  }

  @Override
  protected void getInfo( MonetDBBulkLoaderMeta inf ) {

    inf.setBufferSize( wBufferSize.getText() );
    inf.setSchemaName( wSchema.getText() );
    inf.setTableName( wTable.getText() );
    inf.setDbConnectionName( wConnection.getText() );
    inf.setLogFile( DEFAULT_LOG_FILE );
    inf.setEncoding( DEFAULT_ENCODING );
    inf.setTruncate( true );
    inf.setAutoStringWidths( true );

    stepname = wStepname.getText(); // return value
  }

}