StepsMetricsDialog.java

/*! ******************************************************************************
 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2016 by Pentaho : http://www.pentaho.com
 *
 *******************************************************************************
 *
 * 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
 *
 * 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
 * limitations under the License.
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package org.pentaho.di.ui.trans.steps.stepsmetrics;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CTabFolder;
import org.eclipse.swt.custom.CTabItem;
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.Composite;
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.Table;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Text;
import org.pentaho.di.core.Const;
import org.pentaho.di.core.util.Utils;
import org.pentaho.di.i18n.BaseMessages;
import org.pentaho.di.trans.TransMeta;
import org.pentaho.di.trans.step.BaseStepMeta;
import org.pentaho.di.trans.step.StepDialogInterface;
import org.pentaho.di.trans.step.StepMeta;
import org.pentaho.di.trans.steps.stepsmetrics.StepsMetrics;
import org.pentaho.di.trans.steps.stepsmetrics.StepsMetricsMeta;
import org.pentaho.di.ui.core.PropsUI;
import org.pentaho.di.ui.core.widget.ColumnInfo;
import org.pentaho.di.ui.core.widget.TableView;
import org.pentaho.di.ui.core.widget.TextVar;
import org.pentaho.di.ui.trans.step.BaseStepDialog;

public class StepsMetricsDialog extends BaseStepDialog implements StepDialogInterface {
  private static Class<?> PKG = StepsMetrics.class; // for i18n purposes, needed by Translator2!!

  private static final String[] YES_NO_COMBO = new String[] {
    BaseMessages.getString( PKG, "System.Combo.No" ), BaseMessages.getString( PKG, "System.Combo.Yes" ) };

  private String[] previousSteps;
  private StepsMetricsMeta input;

  private Label wlFields;
  private TableView wFields;
  private FormData fdlFields, fdFields;

  private CTabFolder wTabFolder;
  private FormData fdTabFolder;

  private CTabItem wGeneralTab, wFieldsTab;

  private FormData fdGeneralComp, fdFieldsComp;

  private Label wlStepnameField;
  private TextVar wStepnameField;
  private FormData fdlStepnameField, fdStepnameField;

  private Label wlStepidField;
  private TextVar wStepidField;
  private FormData fdlStepidField, fdStepidField;

  private Label wlLinesinputField;
  private TextVar wLinesinputField;
  private FormData fdlLinesinputField, fdLinesinputField;

  private Label wlLinesoutputField;
  private TextVar wLinesoutputField;
  private FormData fdlLinesoutputField, fdLinesoutputField;

  private Label wlLinesreadField;
  private TextVar wLinesreadField;
  private FormData fdlLinesreadField, fdLinesreadField;

  private Label wlLineswrittenField;
  private TextVar wLineswrittenField;
  private FormData fdlLineswrittenField, fdLineswrittenField;

  private Label wlLineserrorsField;
  private TextVar wLineserrorsField;
  private FormData fdlLineserrorsField, fdLineserrorsField;

  private Label wlSecondsField;
  private TextVar wSecondsField;
  private FormData fdlSecondsField, fdSecondsField;

  private Label wlLinesupdatedField;
  private TextVar wLinesupdatedField;
  private FormData fdlLinesupdatedField, fdLinesupdatedField;

  public StepsMetricsDialog( Shell parent, Object in, TransMeta tr, String sname ) {
    super( parent, (BaseStepMeta) in, tr, sname );
    input = (StepsMetricsMeta) in;
  }

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

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

    ModifyListener lsMod = new ModifyListener() {
      public void modifyText( ModifyEvent e ) {
        input.setChanged();
      }
    };
    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, "StepsMetricsDialog.Shell.Title" ) );

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

    // Stepname line
    wlStepname = new Label( shell, SWT.RIGHT );
    wlStepname.setText( BaseMessages.getString( PKG, "StepsMetricsDialog.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 );

    wTabFolder = new CTabFolder( shell, SWT.BORDER );
    props.setLook( wTabFolder, PropsUI.WIDGET_STYLE_TAB );

    // ////////////////////////
    // START OF GENERAL TAB///
    // /
    wGeneralTab = new CTabItem( wTabFolder, SWT.NONE );
    wGeneralTab.setText( BaseMessages.getString( PKG, "StepsMetricsDialog.General" ) );
    Composite wGeneralComp = new Composite( wTabFolder, SWT.NONE );
    props.setLook( wGeneralComp );
    FormLayout fileLayout = new FormLayout();
    fileLayout.marginWidth = 3;
    fileLayout.marginHeight = 3;
    wGeneralComp.setLayout( fileLayout );

    // Get the previous steps...
    setStepNames();

    wOK = new Button( shell, SWT.PUSH );
    wOK.setText( BaseMessages.getString( PKG, "System.Button.OK" ) );
    wGet = new Button( shell, SWT.PUSH );
    wGet.setText( BaseMessages.getString( PKG, "StepsMetricsDialog.getSteps.Label" ) );
    wCancel = new Button( shell, SWT.PUSH );
    wCancel.setText( BaseMessages.getString( PKG, "System.Button.Cancel" ) );

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

    // Table with fields
    wlFields = new Label( wGeneralComp, SWT.NONE );
    wlFields.setText( BaseMessages.getString( PKG, "StepsMetricsDialog.Fields.Label" ) );
    props.setLook( wlFields );
    fdlFields = new FormData();
    fdlFields.left = new FormAttachment( 0, 0 );
    fdlFields.top = new FormAttachment( wStepname, margin );
    wlFields.setLayoutData( fdlFields );

    final int FieldsCols = 3;
    final int FieldsRows = input.getStepName().length;

    ColumnInfo[] colinf = new ColumnInfo[FieldsCols];
    colinf[0] =
      new ColumnInfo(
        BaseMessages.getString( PKG, "StepsMetricsDialog.Fieldname.Step" ), ColumnInfo.COLUMN_TYPE_CCOMBO,
        previousSteps, false );
    colinf[1] =
      new ColumnInfo(
        BaseMessages.getString( PKG, "StepsMetricsDialog.Fieldname.CopyNr" ), ColumnInfo.COLUMN_TYPE_TEXT,
        false );
    colinf[2] =
      new ColumnInfo(
        BaseMessages.getString( PKG, "StepsMetricsDialog.Required.Column" ), ColumnInfo.COLUMN_TYPE_CCOMBO,
        YES_NO_COMBO );
    colinf[1].setUsingVariables( true );
    wFields =
      new TableView(
        transMeta, wGeneralComp, SWT.BORDER | SWT.FULL_SELECTION | SWT.MULTI, colinf, FieldsRows, lsMod, props );

    fdFields = new FormData();
    fdFields.left = new FormAttachment( 0, 0 );
    fdFields.top = new FormAttachment( wlFields, margin );
    fdFields.right = new FormAttachment( 100, 0 );
    fdFields.bottom = new FormAttachment( 100, -2 * margin );
    wFields.setLayoutData( fdFields );

    fdGeneralComp = new FormData();
    fdGeneralComp.left = new FormAttachment( 0, 0 );
    fdGeneralComp.top = new FormAttachment( 0, 0 );
    fdGeneralComp.right = new FormAttachment( 100, 0 );
    fdGeneralComp.bottom = new FormAttachment( 100, 0 );
    wGeneralComp.setLayoutData( fdGeneralComp );

    wGeneralComp.layout();
    wGeneralTab.setControl( wGeneralComp );

    // ///////////////////////////////////////////////////////////
    // / END OF GENERAL TAB
    // ///////////////////////////////////////////////////////////

    // ////////////////////////
    // START OF FIELDS TAB///
    // /
    wFieldsTab = new CTabItem( wTabFolder, SWT.NONE );
    wFieldsTab.setText( BaseMessages.getString( PKG, "StepsMetricsDialog.Group.Fields" ) );
    Composite wFieldsComp = new Composite( wTabFolder, SWT.NONE );
    props.setLook( wFieldsComp );
    FormLayout fieldsLayout = new FormLayout();
    fieldsLayout.marginWidth = 3;
    fieldsLayout.marginHeight = 3;
    wFieldsComp.setLayout( fieldsLayout );

    // Stepname line
    wlStepnameField = new Label( wFieldsComp, SWT.RIGHT );
    wlStepnameField.setText( BaseMessages.getString( PKG, "StepsMetricsDialog.Label.StepnameField" ) );
    props.setLook( wlStepnameField );
    fdlStepnameField = new FormData();
    fdlStepnameField.left = new FormAttachment( 0, 0 );
    fdlStepnameField.top = new FormAttachment( 0, margin );
    fdlStepnameField.right = new FormAttachment( middle, -margin );
    wlStepnameField.setLayoutData( fdlStepnameField );
    wStepnameField = new TextVar( transMeta, wFieldsComp, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    wStepnameField.setText( "" );
    props.setLook( wStepnameField );
    wStepnameField.addModifyListener( lsMod );
    fdStepnameField = new FormData();
    fdStepnameField.left = new FormAttachment( middle, 0 );
    fdStepnameField.top = new FormAttachment( 0, margin );
    fdStepnameField.right = new FormAttachment( 100, -margin );
    wStepnameField.setLayoutData( fdStepnameField );

    // Stepid line
    wlStepidField = new Label( wFieldsComp, SWT.RIGHT );
    wlStepidField.setText( BaseMessages.getString( PKG, "StepsMetricsDialog.Label.StepidField" ) );
    props.setLook( wlStepidField );
    fdlStepidField = new FormData();
    fdlStepidField.left = new FormAttachment( 0, 0 );
    fdlStepidField.top = new FormAttachment( wStepnameField, margin );
    fdlStepidField.right = new FormAttachment( middle, -margin );
    wlStepidField.setLayoutData( fdlStepidField );
    wStepidField = new TextVar( transMeta, wFieldsComp, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    wStepidField.setText( "" );
    props.setLook( wStepidField );
    wStepidField.addModifyListener( lsMod );
    fdStepidField = new FormData();
    fdStepidField.left = new FormAttachment( middle, 0 );
    fdStepidField.top = new FormAttachment( wStepnameField, margin );
    fdStepidField.right = new FormAttachment( 100, -margin );
    wStepidField.setLayoutData( fdStepidField );

    // Linesinput line
    wlLinesinputField = new Label( wFieldsComp, SWT.RIGHT );
    wlLinesinputField.setText( BaseMessages.getString( PKG, "StepsMetricsDialog.Label.LinesinputField" ) );
    props.setLook( wlLinesinputField );
    fdlLinesinputField = new FormData();
    fdlLinesinputField.left = new FormAttachment( 0, 0 );
    fdlLinesinputField.top = new FormAttachment( wStepidField, margin );
    fdlLinesinputField.right = new FormAttachment( middle, -margin );
    wlLinesinputField.setLayoutData( fdlLinesinputField );
    wLinesinputField = new TextVar( transMeta, wFieldsComp, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    wLinesinputField.setText( "" );
    props.setLook( wLinesinputField );
    wLinesinputField.addModifyListener( lsMod );
    fdLinesinputField = new FormData();
    fdLinesinputField.left = new FormAttachment( middle, 0 );
    fdLinesinputField.top = new FormAttachment( wStepidField, margin );
    fdLinesinputField.right = new FormAttachment( 100, -margin );
    wLinesinputField.setLayoutData( fdLinesinputField );

    // Linesoutput line
    wlLinesoutputField = new Label( wFieldsComp, SWT.RIGHT );
    wlLinesoutputField.setText( BaseMessages.getString( PKG, "StepsMetricsDialog.Label.LinesoutputField" ) );
    props.setLook( wlLinesoutputField );
    fdlLinesoutputField = new FormData();
    fdlLinesoutputField.left = new FormAttachment( 0, 0 );
    fdlLinesoutputField.top = new FormAttachment( wLinesinputField, margin );
    fdlLinesoutputField.right = new FormAttachment( middle, -margin );
    wlLinesoutputField.setLayoutData( fdlLinesoutputField );
    wLinesoutputField = new TextVar( transMeta, wFieldsComp, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    wLinesoutputField.setText( "" );
    props.setLook( wLinesoutputField );
    wLinesoutputField.addModifyListener( lsMod );
    fdLinesoutputField = new FormData();
    fdLinesoutputField.left = new FormAttachment( middle, 0 );
    fdLinesoutputField.top = new FormAttachment( wLinesinputField, margin );
    fdLinesoutputField.right = new FormAttachment( 100, -margin );
    wLinesoutputField.setLayoutData( fdLinesoutputField );

    // Linesread line
    wlLinesreadField = new Label( wFieldsComp, SWT.RIGHT );
    wlLinesreadField.setText( BaseMessages.getString( PKG, "StepsMetricsDialog.Label.LinesreadField" ) );
    props.setLook( wlLinesreadField );
    fdlLinesreadField = new FormData();
    fdlLinesreadField.left = new FormAttachment( 0, 0 );
    fdlLinesreadField.top = new FormAttachment( wLinesoutputField, margin );
    fdlLinesreadField.right = new FormAttachment( middle, -margin );
    wlLinesreadField.setLayoutData( fdlLinesreadField );
    wLinesreadField = new TextVar( transMeta, wFieldsComp, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    wLinesreadField.setText( "" );
    props.setLook( wLinesreadField );
    wLinesreadField.addModifyListener( lsMod );
    fdLinesreadField = new FormData();
    fdLinesreadField.left = new FormAttachment( middle, 0 );
    fdLinesreadField.top = new FormAttachment( wLinesoutputField, margin );
    fdLinesreadField.right = new FormAttachment( 100, -margin );
    wLinesreadField.setLayoutData( fdLinesreadField );

    // Linesupdated line
    wlLinesupdatedField = new Label( wFieldsComp, SWT.RIGHT );
    wlLinesupdatedField.setText( BaseMessages.getString( PKG, "StepsMetricsDialog.Label.LinesupdatedField" ) );
    props.setLook( wlLinesupdatedField );
    fdlLinesupdatedField = new FormData();
    fdlLinesupdatedField.left = new FormAttachment( 0, 0 );
    fdlLinesupdatedField.top = new FormAttachment( wLinesreadField, margin );
    fdlLinesupdatedField.right = new FormAttachment( middle, -margin );
    wlLinesupdatedField.setLayoutData( fdlLinesupdatedField );
    wLinesupdatedField = new TextVar( transMeta, wFieldsComp, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    wLinesupdatedField.setText( "" );
    props.setLook( wLinesupdatedField );
    wLinesupdatedField.addModifyListener( lsMod );
    fdLinesupdatedField = new FormData();
    fdLinesupdatedField.left = new FormAttachment( middle, 0 );
    fdLinesupdatedField.top = new FormAttachment( wLinesreadField, margin );
    fdLinesupdatedField.right = new FormAttachment( 100, -margin );
    wLinesupdatedField.setLayoutData( fdLinesupdatedField );

    // Lineswritten line
    wlLineswrittenField = new Label( wFieldsComp, SWT.RIGHT );
    wlLineswrittenField.setText( BaseMessages.getString( PKG, "StepsMetricsDialog.Label.LineswrittenField" ) );
    props.setLook( wlLineswrittenField );
    fdlLineswrittenField = new FormData();
    fdlLineswrittenField.left = new FormAttachment( 0, 0 );
    fdlLineswrittenField.top = new FormAttachment( wLinesupdatedField, margin );
    fdlLineswrittenField.right = new FormAttachment( middle, -margin );
    wlLineswrittenField.setLayoutData( fdlLineswrittenField );
    wLineswrittenField = new TextVar( transMeta, wFieldsComp, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    wLineswrittenField.setText( "" );
    props.setLook( wLineswrittenField );
    wLineswrittenField.addModifyListener( lsMod );
    fdLineswrittenField = new FormData();
    fdLineswrittenField.left = new FormAttachment( middle, 0 );
    fdLineswrittenField.top = new FormAttachment( wLinesupdatedField, margin );
    fdLineswrittenField.right = new FormAttachment( 100, -margin );
    wLineswrittenField.setLayoutData( fdLineswrittenField );

    // Lineserrors line
    wlLineserrorsField = new Label( wFieldsComp, SWT.RIGHT );
    wlLineserrorsField.setText( BaseMessages.getString( PKG, "StepsMetricsDialog.Label.LineserrorsField" ) );
    props.setLook( wlLineserrorsField );
    fdlLineserrorsField = new FormData();
    fdlLineserrorsField.left = new FormAttachment( 0, 0 );
    fdlLineserrorsField.top = new FormAttachment( wLineswrittenField, margin );
    fdlLineserrorsField.right = new FormAttachment( middle, -margin );
    wlLineserrorsField.setLayoutData( fdlLineserrorsField );
    wLineserrorsField = new TextVar( transMeta, wFieldsComp, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    wLineserrorsField.setText( "" );
    props.setLook( wLineserrorsField );
    wLineserrorsField.addModifyListener( lsMod );
    fdLineserrorsField = new FormData();
    fdLineserrorsField.left = new FormAttachment( middle, 0 );
    fdLineserrorsField.top = new FormAttachment( wLineswrittenField, margin );
    fdLineserrorsField.right = new FormAttachment( 100, -margin );
    wLineserrorsField.setLayoutData( fdLineserrorsField );

    // Seconds line
    wlSecondsField = new Label( wFieldsComp, SWT.RIGHT );
    wlSecondsField.setText( BaseMessages.getString( PKG, "StepsMetricsDialog.Label.DurationField" ) );
    props.setLook( wlSecondsField );
    fdlSecondsField = new FormData();
    fdlSecondsField.left = new FormAttachment( 0, 0 );
    fdlSecondsField.top = new FormAttachment( wLineserrorsField, margin );
    fdlSecondsField.right = new FormAttachment( middle, -margin );
    wlSecondsField.setLayoutData( fdlSecondsField );
    wSecondsField = new TextVar( transMeta, wFieldsComp, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    wSecondsField.setText( "" );
    props.setLook( wSecondsField );
    wSecondsField.addModifyListener( lsMod );
    fdSecondsField = new FormData();
    fdSecondsField.left = new FormAttachment( middle, 0 );
    fdSecondsField.top = new FormAttachment( wLineserrorsField, margin );
    fdSecondsField.right = new FormAttachment( 100, -margin );
    wSecondsField.setLayoutData( fdSecondsField );

    fdFieldsComp = new FormData();
    fdFieldsComp.left = new FormAttachment( 0, 0 );
    fdFieldsComp.top = new FormAttachment( 0, 0 );
    fdFieldsComp.right = new FormAttachment( 100, 0 );
    fdFieldsComp.bottom = new FormAttachment( 100, 0 );
    wFieldsComp.setLayoutData( fdFieldsComp );
    wFieldsComp.layout();
    wFieldsTab.setControl( wFieldsComp );

    // ///////////////////////////////////////////////////////////
    // / END OF FIELDS TAB
    // ///////////////////////////////////////////////////////////

    fdTabFolder = new FormData();
    fdTabFolder.left = new FormAttachment( 0, 0 );
    fdTabFolder.top = new FormAttachment( wStepname, margin );
    fdTabFolder.right = new FormAttachment( 100, 0 );
    fdTabFolder.bottom = new FormAttachment( 100, -50 );
    wTabFolder.setLayoutData( fdTabFolder );

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

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

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

    wStepname.addSelectionListener( lsDef );

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

    wTabFolder.setSelection( 0 );
    // Set the shell size, based upon previous time...
    setSize();

    getData();
    input.setChanged( changed );

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

  private void setStepNames() {
    previousSteps = transMeta.getStepNames();
    String[] nextSteps = transMeta.getNextStepNames( stepMeta );

    List<String> entries = new ArrayList<String>();
    for ( int i = 0; i < previousSteps.length; i++ ) {
      if ( !previousSteps[i].equals( stepname ) ) {
        if ( nextSteps != null ) {
          for ( int j = 0; j < nextSteps.length; j++ ) {
            if ( !nextSteps[j].equals( previousSteps[i] ) ) {
              entries.add( previousSteps[i] );
            }
          }
        }
      }
    }
    previousSteps = entries.toArray( new String[entries.size()] );
  }

  private void get() {
    wFields.removeAll();
    Table table = wFields.table;

    for ( int i = 0; i < previousSteps.length; i++ ) {
      TableItem ti = new TableItem( table, SWT.NONE );
      ti.setText( 0, "" + ( i + 1 ) );
      ti.setText( 1, previousSteps[i] );
      ti.setText( 2, "0" );
      ti.setText( 3, BaseMessages.getString( PKG, "System.Combo.No" ) );
    }
    wFields.removeEmptyRows();
    wFields.setRowNums();
    wFields.optWidth( true );

  }

  /**
   * Copy information from the meta-data input to the dialog fields.
   */
  public void getData() {
    Table table = wFields.table;
    if ( input.getStepName().length > 0 ) {
      table.removeAll();
    }
    for ( int i = 0; i < input.getStepName().length; i++ ) {
      TableItem ti = new TableItem( table, SWT.NONE );
      ti.setText( 0, "" + ( i + 1 ) );
      if ( input.getStepName()[i] != null ) {
        ti.setText( 1, input.getStepName()[i] );
        ti.setText( 2, String.valueOf( Const.toInt( input.getStepCopyNr()[i], 0 ) ) );
        ti.setText( 3, input.getRequiredStepsDesc( input.getStepRequired()[i] ) );
      }
    }

    wFields.removeEmptyRows();
    wFields.setRowNums();
    wFields.optWidth( true );

    if ( input.getStepNameFieldName() != null ) {
      wStepnameField.setText( input.getStepNameFieldName() );
    }
    if ( input.getStepIdFieldName() != null ) {
      wStepidField.setText( input.getStepIdFieldName() );
    }
    if ( input.getStepLinesInputFieldName() != null ) {
      wLinesinputField.setText( input.getStepLinesInputFieldName() );
    }
    if ( input.getStepLinesOutputFieldName() != null ) {
      wLinesoutputField.setText( input.getStepLinesOutputFieldName() );
    }
    if ( input.getStepLinesReadFieldName() != null ) {
      wLinesreadField.setText( input.getStepLinesReadFieldName() );
    }
    if ( input.getStepLinesWrittenFieldName() != null ) {
      wLineswrittenField.setText( input.getStepLinesWrittenFieldName() );
    }
    if ( input.getStepLinesUpdatedFieldName() != null ) {
      wLinesupdatedField.setText( input.getStepLinesUpdatedFieldName() );
    }
    if ( input.getStepLinesErrorsFieldName() != null ) {
      wLineserrorsField.setText( input.getStepLinesErrorsFieldName() );
    }
    if ( input.getStepSecondsFieldName() != null ) {
      wSecondsField.setText( input.getStepSecondsFieldName() );
    }

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

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

  private void ok() {
    if ( Utils.isEmpty( wStepname.getText() ) ) {
      return;
    }

    getInfo( input );
    dispose();
  }

  private void getInfo( StepsMetricsMeta in ) {
    stepname = wStepname.getText(); // return value
    int nrsteps = wFields.nrNonEmpty();
    in.allocate( nrsteps );
    for ( int i = 0; i < nrsteps; i++ ) {
      TableItem ti = wFields.getNonEmpty( i );
      StepMeta tm = transMeta.findStep( ti.getText( 1 ) );
      //CHECKSTYLE:Indentation:OFF
      if ( tm != null ) {
        in.getStepName()[i] = tm.getName();
        in.getStepCopyNr()[i] = "" + Const.toInt( ti.getText( 2 ), 0 );
        in.getStepRequired()[i] = in.getRequiredStepsCode( ti.getText( 3 ) );
      }

    }

    in.setStepNameFieldName( wStepnameField.getText() );
    in.setStepIdFieldName( wStepidField.getText() );
    in.setStepLinesInputFieldName( wLinesinputField.getText() );
    in.setStepLinesOutputFieldName( wLinesoutputField.getText() );
    in.setStepLinesReadFieldName( wLinesreadField.getText() );
    in.setStepLinesWrittenFieldName( wLineswrittenField.getText() );
    in.setStepLinesUpdatedFieldName( wLinesupdatedField.getText() );
    in.setStepLinesErrorsFieldName( wLineserrorsField.getText() );
    in.setStepSecondsFieldName( wSecondsField.getText() );

  }
}