UpdateDialog.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.
 *
 ******************************************************************************/

package org.pentaho.di.ui.trans.steps.update;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CCombo;
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.SelectionListener;
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.MessageBox;
import org.eclipse.swt.widgets.Shell;
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.core.SQLStatement;
import org.pentaho.di.core.database.Database;
import org.pentaho.di.core.database.DatabaseMeta;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.core.row.RowMetaInterface;
import org.pentaho.di.core.row.ValueMetaInterface;
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.update.UpdateMeta;
import org.pentaho.di.ui.core.database.dialog.DatabaseExplorerDialog;
import org.pentaho.di.ui.core.database.dialog.SQLEditor;
import org.pentaho.di.ui.core.dialog.EnterSelectionDialog;
import org.pentaho.di.ui.core.dialog.ErrorDialog;
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;
import org.pentaho.di.ui.trans.step.TableItemInsertListener;

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

  private CCombo wConnection;

  private Label wlKey;
  private TableView wKey;
  private FormData fdlKey, fdKey;

  private Label wlSchema;
  private TextVar wSchema;
  private FormData fdlSchema, fdSchema;
  private FormData fdbSchema;
  private Button wbSchema;

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

  private Label wlReturn;
  private TableView wReturn;
  private FormData fdlReturn, fdReturn;

  private Label wlCommit;
  private TextVar wCommit;
  private FormData fdlCommit, fdCommit;

  private Label wlBatch;
  private Button wBatch;
  private FormData fdlBatch, fdBatch;

  private Label wlErrorIgnored;
  private Button wErrorIgnored;
  private FormData fdlErrorIgnored, fdErrorIgnored;

  private Label wlIgnoreFlagField;
  private Text wIgnoreFlagField;
  private FormData fdlIgnoreFlagField, fdIgnoreFlagField;

  private Button wGetLU;
  private FormData fdGetLU;
  private Listener lsGetLU;

  private UpdateMeta input;

  private ColumnInfo[] ciKey;

  private ColumnInfo[] ciReturn;

  private Map<String, Integer> inputFields;

  private Label wlSkipLookup;
  private Button wSkipLookup;
  private FormData fdlSkipLookup, fdSkipLookup;

  /**
   * List of ColumnInfo that should have the field names of the selected database table
   */
  private List<ColumnInfo> tableFieldColumns = new ArrayList<ColumnInfo>();

  public UpdateDialog( Shell parent, Object in, TransMeta tr, String sname ) {
    super( parent, (BaseStepMeta) in, tr, sname );
    input = (UpdateMeta) in;
    inputFields = new HashMap<String, Integer>();
  }

  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();
      }
    };
    ModifyListener lsTableMod = new ModifyListener() {
      public void modifyText( ModifyEvent arg0 ) {
        input.setChanged();
        setTableFieldCombo();
      }
    };
    SelectionListener lsSelection = new SelectionAdapter() {
      public void widgetSelected( SelectionEvent e ) {
        input.setChanged();
        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, "UpdateDialog.Shell.Title" ) );

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

    // Stepname line
    wlStepname = new Label( shell, SWT.RIGHT );
    wlStepname.setText( BaseMessages.getString( PKG, "UpdateDialog.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 );
    if ( input.getDatabaseMeta() == null && transMeta.nrDatabases() == 1 ) {
      wConnection.select( 0 );
    }
    wConnection.addModifyListener( lsMod );
    wConnection.addSelectionListener( lsSelection );

    // Schema line...
    wlSchema = new Label( shell, SWT.RIGHT );
    wlSchema.setText( BaseMessages.getString( PKG, "UpdateDialog.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 );

    wbSchema = new Button( shell, SWT.PUSH | SWT.CENTER );
    props.setLook( wbSchema );
    wbSchema.setText( BaseMessages.getString( PKG, "System.Button.Browse" ) );
    fdbSchema = new FormData();
    fdbSchema.top = new FormAttachment( wConnection, 2 * margin );
    fdbSchema.right = new FormAttachment( 100, 0 );
    wbSchema.setLayoutData( fdbSchema );

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

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

    wbTable = new Button( shell, SWT.PUSH | SWT.CENTER );
    props.setLook( wbTable );
    wbTable.setText( BaseMessages.getString( PKG, "UpdateDialog.Browse.Button" ) );
    fdbTable = new FormData();
    fdbTable.right = new FormAttachment( 100, 0 );
    fdbTable.top = new FormAttachment( wbSchema, margin );
    wbTable.setLayoutData( fdbTable );

    wTable = new TextVar( transMeta, shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    props.setLook( wTable );
    wTable.addModifyListener( lsTableMod );
    fdTable = new FormData();
    fdTable.left = new FormAttachment( middle, 0 );
    fdTable.top = new FormAttachment( wbSchema, margin );
    fdTable.right = new FormAttachment( wbTable, -margin );
    wTable.setLayoutData( fdTable );

    // Commit line
    wlCommit = new Label( shell, SWT.RIGHT );
    wlCommit.setText( BaseMessages.getString( PKG, "UpdateDialog..Commit.Label" ) );
    props.setLook( wlCommit );
    fdlCommit = new FormData();
    fdlCommit.left = new FormAttachment( 0, 0 );
    fdlCommit.top = new FormAttachment( wTable, margin );
    fdlCommit.right = new FormAttachment( middle, -margin );
    wlCommit.setLayoutData( fdlCommit );
    wCommit = new TextVar( transMeta, shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    props.setLook( wCommit );
    wCommit.addModifyListener( lsMod );
    fdCommit = new FormData();
    fdCommit.left = new FormAttachment( middle, 0 );
    fdCommit.top = new FormAttachment( wTable, margin );
    fdCommit.right = new FormAttachment( 100, 0 );
    wCommit.setLayoutData( fdCommit );

    // Batch update
    wlBatch = new Label( shell, SWT.RIGHT );
    wlBatch.setText( BaseMessages.getString( PKG, "UpdateDialog.Batch.Label" ) );
    props.setLook( wlBatch );
    fdlBatch = new FormData();
    fdlBatch.left = new FormAttachment( 0, 0 );
    fdlBatch.top = new FormAttachment( wCommit, margin );
    fdlBatch.right = new FormAttachment( middle, -margin );
    wlBatch.setLayoutData( fdlBatch );
    wBatch = new Button( shell, SWT.CHECK );
    props.setLook( wBatch );
    fdBatch = new FormData();
    fdBatch.left = new FormAttachment( middle, 0 );
    fdBatch.top = new FormAttachment( wCommit, margin );
    fdBatch.right = new FormAttachment( 100, 0 );
    wBatch.setLayoutData( fdBatch );
    wBatch.addSelectionListener( new SelectionAdapter() {
      public void widgetSelected( SelectionEvent arg0 ) {
        setFlags();
      }
    } );

    // UsePart update
    wlSkipLookup = new Label( shell, SWT.RIGHT );
    wlSkipLookup.setText( BaseMessages.getString( PKG, "UpdateDialog.SkipLookup.Label" ) );
    props.setLook( wlSkipLookup );
    fdlSkipLookup = new FormData();
    fdlSkipLookup.left = new FormAttachment( 0, 0 );
    fdlSkipLookup.top = new FormAttachment( wBatch, margin );
    fdlSkipLookup.right = new FormAttachment( middle, -margin );
    wlSkipLookup.setLayoutData( fdlSkipLookup );
    wSkipLookup = new Button( shell, SWT.CHECK );
    wSkipLookup.setToolTipText( BaseMessages.getString( PKG, "UpdateDialog.SkipLookup.Tooltip" ) );
    props.setLook( wSkipLookup );
    fdSkipLookup = new FormData();
    fdSkipLookup.left = new FormAttachment( middle, 0 );
    fdSkipLookup.top = new FormAttachment( wBatch, margin );
    fdSkipLookup.right = new FormAttachment( 100, 0 );
    wSkipLookup.setLayoutData( fdSkipLookup );
    wSkipLookup.addSelectionListener( new SelectionAdapter() {
      public void widgetSelected( SelectionEvent e ) {
        input.setChanged();
        setActiveIgnoreLookup();
      }
    } );

    wlErrorIgnored = new Label( shell, SWT.RIGHT );
    wlErrorIgnored.setText( BaseMessages.getString( PKG, "UpdateDialog.ErrorIgnored.Label" ) );
    props.setLook( wlErrorIgnored );
    fdlErrorIgnored = new FormData();
    fdlErrorIgnored.left = new FormAttachment( 0, 0 );
    fdlErrorIgnored.top = new FormAttachment( wSkipLookup, margin );
    fdlErrorIgnored.right = new FormAttachment( middle, -margin );
    wlErrorIgnored.setLayoutData( fdlErrorIgnored );

    wErrorIgnored = new Button( shell, SWT.CHECK );
    props.setLook( wErrorIgnored );
    wErrorIgnored.setToolTipText( BaseMessages.getString( PKG, "UpdateDialog.ErrorIgnored.ToolTip" ) );
    fdErrorIgnored = new FormData();
    fdErrorIgnored.left = new FormAttachment( middle, 0 );
    fdErrorIgnored.top = new FormAttachment( wSkipLookup, margin );
    wErrorIgnored.setLayoutData( fdErrorIgnored );
    wErrorIgnored.addSelectionListener( new SelectionAdapter() {
      public void widgetSelected( SelectionEvent e ) {
        input.setChanged();
        setFlags();
      }
    } );

    wlIgnoreFlagField = new Label( shell, SWT.LEFT );
    wlIgnoreFlagField.setText( BaseMessages.getString( PKG, "UpdateDialog.FlagField.Label" ) );
    props.setLook( wlIgnoreFlagField );
    fdlIgnoreFlagField = new FormData();
    fdlIgnoreFlagField.left = new FormAttachment( wErrorIgnored, margin );
    fdlIgnoreFlagField.top = new FormAttachment( wSkipLookup, margin );
    wlIgnoreFlagField.setLayoutData( fdlIgnoreFlagField );
    wIgnoreFlagField = new Text( shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
    props.setLook( wIgnoreFlagField );
    wIgnoreFlagField.addModifyListener( lsMod );
    fdIgnoreFlagField = new FormData();
    fdIgnoreFlagField.left = new FormAttachment( wlIgnoreFlagField, margin );
    fdIgnoreFlagField.top = new FormAttachment( wSkipLookup, margin );
    fdIgnoreFlagField.right = new FormAttachment( 100, 0 );
    wIgnoreFlagField.setLayoutData( fdIgnoreFlagField );

    wlKey = new Label( shell, SWT.NONE );
    wlKey.setText( BaseMessages.getString( PKG, "UpdateDialog.Key.Label" ) );
    props.setLook( wlKey );
    fdlKey = new FormData();
    fdlKey.left = new FormAttachment( 0, 0 );
    fdlKey.top = new FormAttachment( wIgnoreFlagField, margin );
    wlKey.setLayoutData( fdlKey );

    int nrKeyCols = 4;
    int nrKeyRows = ( input.getKeyStream() != null ? input.getKeyStream().length : 1 );

    ciKey = new ColumnInfo[nrKeyCols];
    ciKey[0] =
      new ColumnInfo(
        BaseMessages.getString( PKG, "UpdateDialog.ColumnInfo.TableField" ), ColumnInfo.COLUMN_TYPE_CCOMBO,
        new String[] { "" }, false );
    ciKey[1] =
      new ColumnInfo(
        BaseMessages.getString( PKG, "UpdateDialog.ColumnInfo.Comparator" ),
        ColumnInfo.COLUMN_TYPE_CCOMBO,
        new String[] { "=", "= ~NULL", "<>", "<", "<=", ">", ">=", "LIKE", "BETWEEN", "IS NULL", "IS NOT NULL" } );
    ciKey[2] =
      new ColumnInfo(
        BaseMessages.getString( PKG, "UpdateDialog.ColumnInfo.StreamField1" ), ColumnInfo.COLUMN_TYPE_CCOMBO,
        new String[] { "" }, false );
    ciKey[3] =
      new ColumnInfo(
        BaseMessages.getString( PKG, "UpdateDialog.ColumnInfo.StreamField2" ), ColumnInfo.COLUMN_TYPE_CCOMBO,
        new String[] { "" }, false );
    tableFieldColumns.add( ciKey[0] );
    wKey =
      new TableView(
        transMeta, shell, SWT.BORDER | SWT.FULL_SELECTION | SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL, ciKey,
        nrKeyRows, lsMod, props );

    wGet = new Button( shell, SWT.PUSH );
    wGet.setText( BaseMessages.getString( PKG, "UpdateDialog.GetFields.Button" ) );
    fdGet = new FormData();
    fdGet.right = new FormAttachment( 100, 0 );
    fdGet.top = new FormAttachment( wlKey, margin );
    wGet.setLayoutData( fdGet );

    fdKey = new FormData();
    fdKey.left = new FormAttachment( 0, 0 );
    fdKey.top = new FormAttachment( wlKey, margin );
    fdKey.right = new FormAttachment( wGet, -margin );
    fdKey.bottom = new FormAttachment( wlKey, 190 );
    wKey.setLayoutData( fdKey );

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

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

    // THE UPDATE/INSERT TABLE
    wlReturn = new Label( shell, SWT.NONE );
    wlReturn.setText( BaseMessages.getString( PKG, "UpdateDialog.Return.Label" ) );
    props.setLook( wlReturn );
    fdlReturn = new FormData();
    fdlReturn.left = new FormAttachment( 0, 0 );
    fdlReturn.top = new FormAttachment( wKey, margin );
    wlReturn.setLayoutData( fdlReturn );

    int UpInsCols = 2;
    int UpInsRows = ( input.getUpdateLookup() != null ? input.getUpdateLookup().length : 1 );

    ciReturn = new ColumnInfo[UpInsCols];
    ciReturn[0] =
      new ColumnInfo(
        BaseMessages.getString( PKG, "UpdateDialog.ColumnInfo.TableField" ), ColumnInfo.COLUMN_TYPE_CCOMBO,
        new String[] { "" }, false );
    ciReturn[1] =
      new ColumnInfo(
        BaseMessages.getString( PKG, "UpdateDialog.ColumnInfo.StreamField" ), ColumnInfo.COLUMN_TYPE_CCOMBO,
        new String[] { "" }, false );
    tableFieldColumns.add( ciReturn[0] );
    wReturn =
      new TableView(
        transMeta, shell, SWT.BORDER | SWT.FULL_SELECTION | SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL, ciReturn,
        UpInsRows, lsMod, props );

    wGetLU = new Button( shell, SWT.PUSH );
    wGetLU.setText( BaseMessages.getString( PKG, "UpdateDialog.GetAndUpdateFields" ) );
    fdGetLU = new FormData();
    fdGetLU.top = new FormAttachment( wlReturn, margin );
    fdGetLU.right = new FormAttachment( 100, 0 );
    wGetLU.setLayoutData( fdGetLU );

    fdReturn = new FormData();
    fdReturn.left = new FormAttachment( 0, 0 );
    fdReturn.top = new FormAttachment( wlReturn, margin );
    fdReturn.right = new FormAttachment( wGetLU, -margin );
    fdReturn.bottom = new FormAttachment( wOK, -2 * margin );
    wReturn.setLayoutData( fdReturn );

    //
    // Search the fields in the background
    //

    final Runnable runnable = new Runnable() {
      public void run() {
        StepMeta stepMeta = transMeta.findStep( stepname );
        if ( stepMeta != null ) {
          try {
            RowMetaInterface row = transMeta.getPrevStepFields( stepMeta );

            // Remember these fields...
            for ( int i = 0; i < row.size(); i++ ) {
              inputFields.put( row.getValueMeta( i ).getName(), i );
            }

            setComboBoxes();
          } catch ( KettleException e ) {
            logError( BaseMessages.getString( PKG, "System.Dialog.GetFieldsFailed.Message" ) );
          }
        }
      }
    };
    new Thread( runnable ).start();

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

    wOK.addListener( SWT.Selection, lsOK );
    wGet.addListener( SWT.Selection, lsGet );
    wGetLU.addListener( SWT.Selection, lsGetLU );
    wSQL.addListener( SWT.Selection, lsSQL );
    wCancel.addListener( SWT.Selection, lsCancel );

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

    wStepname.addSelectionListener( lsDef );
    wSchema.addSelectionListener( lsDef );
    wTable.addSelectionListener( lsDef );
    wCommit.addSelectionListener( lsDef );
    wIgnoreFlagField.addSelectionListener( lsDef );

    // Detect X or ALT-F4 or something that kills this window...
    shell.addShellListener( new ShellAdapter() {
      public void shellClosed( ShellEvent e ) {
        cancel();
      }
    } );
    wbSchema.addSelectionListener( new SelectionAdapter() {
      public void widgetSelected( SelectionEvent e ) {
        getSchemaNames();
      }
    } );
    wbTable.addSelectionListener( new SelectionAdapter() {
      public void widgetSelected( SelectionEvent e ) {
        getTableName();
      }
    } );

    // Set the shell size, based upon previous time...
    setSize();
    getData();
    setActiveIgnoreLookup();
    setTableFieldCombo();
    input.setChanged( changed );

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

  public void setActiveIgnoreLookup() {
    if ( wSkipLookup.getSelection() ) {
      wErrorIgnored.setSelection( false );
      wIgnoreFlagField.setText( "" );
    }
    wErrorIgnored.setEnabled( !wSkipLookup.getSelection() );
    wlErrorIgnored.setEnabled( !wSkipLookup.getSelection() );
    wlIgnoreFlagField.setEnabled( !wSkipLookup.getSelection() && wErrorIgnored.getSelection() );
    wIgnoreFlagField.setEnabled( !wSkipLookup.getSelection() && wErrorIgnored.getSelection() );

  }

  protected void setComboBoxes() {
    // Something was changed in the row.
    //
    final Map<String, Integer> fields = new HashMap<String, Integer>();

    // Add the currentMeta fields...
    fields.putAll( inputFields );

    Set<String> keySet = fields.keySet();
    List<String> entries = new ArrayList<String>( keySet );

    String[] fieldNames = entries.toArray( new String[entries.size()] );
    Const.sortStrings( fieldNames );
    // Key fields
    ciKey[2].setComboValues( fieldNames );
    ciKey[3].setComboValues( fieldNames );
    // return fields
    ciReturn[1].setComboValues( fieldNames );
  }

  public void setFlags() {
    wlIgnoreFlagField.setEnabled( wErrorIgnored.getSelection() );
    wIgnoreFlagField.setEnabled( wErrorIgnored.getSelection() );

    DatabaseMeta databaseMeta = transMeta.findDatabase( wConnection.getText() );
    boolean hasErrorHandling = transMeta.findStep( stepname ).isDoingErrorHandling();

    // Can't use batch yet when grabbing auto-generated keys...
    // Only enable batch option when not returning keys.
    // If we are on PostgreSQL (and look-a-likes), error handling is not supported. (PDI-366)
    //
    boolean enableBatch = wBatch.getSelection() && !transMeta.isUsingUniqueConnections();
    enableBatch =
      enableBatch
        && !( databaseMeta != null && databaseMeta.supportsErrorHandlingOnBatchUpdates() && hasErrorHandling );
  }

  private void setTableFieldCombo() {
    Runnable fieldLoader = new Runnable() {
      public void run() {
        if ( !wTable.isDisposed() && !wConnection.isDisposed() && !wSchema.isDisposed() ) {
          final String tableName = wTable.getText(), connectionName = wConnection.getText(), schemaName =
            wSchema.getText();

          // clear
          for ( ColumnInfo colInfo : tableFieldColumns ) {
            colInfo.setComboValues( new String[] {} );
          }
          if ( !Utils.isEmpty( tableName ) ) {
            DatabaseMeta ci = transMeta.findDatabase( connectionName );
            if ( ci != null ) {
              Database db = new Database( loggingObject, ci );
              try {
                db.connect();

                String schemaTable =
                  ci.getQuotedSchemaTableCombination( transMeta.environmentSubstitute( schemaName ), transMeta
                    .environmentSubstitute( tableName ) );
                RowMetaInterface r = db.getTableFields( schemaTable );
                if ( null != r ) {
                  String[] fieldNames = r.getFieldNames();
                  if ( null != fieldNames ) {
                    for ( ColumnInfo colInfo : tableFieldColumns ) {
                      colInfo.setComboValues( fieldNames );
                    }
                  }
                }
              } catch ( Exception e ) {
                for ( ColumnInfo colInfo : tableFieldColumns ) {
                  colInfo.setComboValues( new String[] {} );
                }
                // ignore any errors here. drop downs will not be
                // filled, but no problem for the user
              } finally {
                try {
                  if ( db != null ) {
                    db.disconnect();
                  }
                } catch ( Exception ignored ) {
                  // ignore any errors here.
                  db = null;
                }
              }
            }
          }
        }
      }
    };
    shell.getDisplay().asyncExec( fieldLoader );
  }

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

    wCommit.setText( input.getCommitSizeVar() );
    wBatch.setSelection( input.useBatchUpdate() );
    wSkipLookup.setSelection( input.isSkipLookup() );
    wErrorIgnored.setSelection( input.isErrorIgnored() );
    if ( input.getIgnoreFlagField() != null ) {
      wIgnoreFlagField.setText( input.getIgnoreFlagField() );
    }

    if ( input.getKeyStream() != null ) {
      for ( int i = 0; i < input.getKeyStream().length; i++ ) {
        TableItem item = wKey.table.getItem( i );
        if ( input.getKeyLookup()[i] != null ) {
          item.setText( 1, input.getKeyLookup()[i] );
        }
        if ( input.getKeyCondition()[i] != null ) {
          item.setText( 2, input.getKeyCondition()[i] );
        }
        if ( input.getKeyStream()[i] != null ) {
          item.setText( 3, input.getKeyStream()[i] );
        }
        if ( input.getKeyStream2()[i] != null ) {
          item.setText( 4, input.getKeyStream2()[i] );
        }
      }
    }

    if ( input.getUpdateLookup() != null ) {
      for ( int i = 0; i < input.getUpdateLookup().length; i++ ) {
        TableItem item = wReturn.table.getItem( i );
        if ( input.getUpdateLookup()[i] != null ) {
          item.setText( 1, input.getUpdateLookup()[i] );
        }
        if ( input.getUpdateStream()[i] != null ) {
          item.setText( 2, input.getUpdateStream()[i] );
        }
      }
    }

    if ( input.getSchemaName() != null ) {
      wSchema.setText( input.getSchemaName() );
    }
    if ( input.getTableName() != null ) {
      wTable.setText( input.getTableName() );
    }
    if ( input.getDatabaseMeta() != null ) {
      wConnection.setText( input.getDatabaseMeta().getName() );
    } else if ( transMeta.nrDatabases() == 1 ) {
      wConnection.setText( transMeta.getDatabase( 0 ).getName() );
    }

    wKey.setRowNums();
    wKey.optWidth( true );
    wReturn.setRowNums();
    wReturn.optWidth( true );

    setFlags();

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

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

  private void getInfo( UpdateMeta inf ) {
    // Table ktable = wKey.table;
    int nrkeys = wKey.nrNonEmpty();
    int nrfields = wReturn.nrNonEmpty();

    inf.allocate( nrkeys, nrfields );

    inf.setCommitSize(  wCommit.getText() );
    inf.setUseBatchUpdate( wBatch.getSelection() );
    inf.setSkipLookup( wSkipLookup.getSelection() );

    if ( log.isDebug() ) {
      logDebug( BaseMessages.getString( PKG, "UpdateDialog.Log.FoundKeys", nrkeys + "" ) );
    }
    //CHECKSTYLE:Indentation:OFF
    for ( int i = 0; i < nrkeys; i++ ) {
      TableItem item = wKey.getNonEmpty( i );
      inf.getKeyLookup()[i] = item.getText( 1 );
      inf.getKeyCondition()[i] = item.getText( 2 );
      inf.getKeyStream()[i] = item.getText( 3 );
      inf.getKeyStream2()[i] = item.getText( 4 );
    }

    // Table ftable = wReturn.table;

    logDebug( BaseMessages.getString( PKG, "UpdateDialog.Log.FoundFields", nrfields + "" ) );
    //CHECKSTYLE:Indentation:OFF
    for ( int i = 0; i < nrfields; i++ ) {
      TableItem item = wReturn.getNonEmpty( i );
      inf.getUpdateLookup()[i] = item.getText( 1 );
      inf.getUpdateStream()[i] = item.getText( 2 );
    }

    inf.setSchemaName( wSchema.getText() );
    inf.setTableName( wTable.getText() );
    inf.setDatabaseMeta( transMeta.findDatabase( wConnection.getText() ) );

    inf.setErrorIgnored( wErrorIgnored.getSelection() );
    inf.setIgnoreFlagField( wIgnoreFlagField.getText() );

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

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

    // Get the information for the dialog into the input structure.
    getInfo( input );

    if ( input.getDatabaseMeta() == null ) {
      MessageBox mb = new MessageBox( shell, SWT.OK | SWT.ICON_ERROR );
      mb.setMessage( BaseMessages.getString( PKG, "UpdateDialog.InvalidConnection.DialogMessage" ) );
      mb.setText( BaseMessages.getString( PKG, "UpdateDialog.InvalidConnection.DialogTitle" ) );
      mb.open();
      return;
    }

    dispose();
  }

  private void getTableName() {
    DatabaseMeta inf = null;
    // New class: SelectTableDialog
    int connr = wConnection.getSelectionIndex();
    if ( connr >= 0 ) {
      inf = transMeta.getDatabase( connr );
    }

    if ( inf != null ) {
      if ( log.isDebug() ) {
        logDebug( BaseMessages.getString( PKG, "UpdateDialog.Log.LookingAtConnection" ) + inf.toString() );
      }

      DatabaseExplorerDialog std = new DatabaseExplorerDialog( shell, SWT.NONE, inf, transMeta.getDatabases() );
      std.setSelectedSchemaAndTable( wSchema.getText(), wTable.getText() );
      if ( std.open() ) {
        wSchema.setText( Const.NVL( std.getSchemaName(), "" ) );
        wTable.setText( Const.NVL( std.getTableName(), "" ) );
        setTableFieldCombo();
      }
    } else {
      MessageBox mb = new MessageBox( shell, SWT.OK | SWT.ICON_ERROR );
      mb.setMessage( BaseMessages.getString( PKG, "UpdateDialog.InvalidConnection.DialogMessage" ) );
      mb.setText( BaseMessages.getString( PKG, "UpdateDialog.InvalidConnection.DialogTitle" ) );
      mb.open();
    }
  }

  private void get() {
    try {
      RowMetaInterface r = transMeta.getPrevStepFields( stepname );
      if ( r != null && !r.isEmpty() ) {
        TableItemInsertListener listener = new TableItemInsertListener() {
          public boolean tableItemInserted( TableItem tableItem, ValueMetaInterface v ) {
            tableItem.setText( 2, "=" );
            return true;
          }
        };
        BaseStepDialog.getFieldsFromPrevious( r, wKey, 1, new int[] { 1, 3 }, new int[] {}, -1, -1, listener );
      }
    } catch ( KettleException ke ) {
      new ErrorDialog(
        shell, BaseMessages.getString( PKG, "UpdateDialog.FailedToGetFields.DialogTitle" ), BaseMessages
          .getString( PKG, "UpdateDialog.FailedToGetFields.DialogMessage" ), ke );
    }
  }

  private void getUpdate() {
    try {
      RowMetaInterface r = transMeta.getPrevStepFields( stepname );
      if ( r != null && !r.isEmpty() ) {
        BaseStepDialog.getFieldsFromPrevious( r, wReturn, 1, new int[] { 1, 2 }, new int[] {}, -1, -1, null );
      }
    } catch ( KettleException ke ) {
      new ErrorDialog(
        shell, BaseMessages.getString( PKG, "UpdateDialog.FailedToGetFields.DialogTitle" ), BaseMessages
          .getString( PKG, "UpdateDialog.FailedToGetFields.DialogMessage" ), ke );
    }

  }

  // Generate code for create table...
  // Conversions done by Database
  private void create() {
    try {
      UpdateMeta info = new UpdateMeta();
      getInfo( info );

      String name = stepname; // new name might not yet be linked to other steps!
      StepMeta stepinfo = new StepMeta( BaseMessages.getString( PKG, "UpdateDialog.StepMeta.Title" ), name, info );
      RowMetaInterface prev = transMeta.getPrevStepFields( stepname );

      SQLStatement sql = info.getSQLStatements( transMeta, stepinfo, prev, repository, metaStore );
      if ( !sql.hasError() ) {
        if ( sql.hasSQL() ) {
          SQLEditor sqledit =
            new SQLEditor( transMeta, shell, SWT.NONE, info.getDatabaseMeta(), transMeta.getDbCache(), sql
              .getSQL() );
          sqledit.open();
        } else {
          MessageBox mb = new MessageBox( shell, SWT.OK | SWT.ICON_INFORMATION );
          mb.setMessage( BaseMessages.getString( PKG, "UpdateDialog.NoSQLNeeds.DialogMessage" ) );
          mb.setText( BaseMessages.getString( PKG, "UpdateDialog.NoSQLNeeds.DialogTitle" ) );
          mb.open();
        }
      } else {
        MessageBox mb = new MessageBox( shell, SWT.OK | SWT.ICON_ERROR );
        mb.setMessage( sql.getError() );
        mb.setText( BaseMessages.getString( PKG, "UpdateDialog.SQLError.DialogTitle" ) );
        mb.open();
      }
    } catch ( KettleException ke ) {
      new ErrorDialog(
        shell, BaseMessages.getString( PKG, "UpdateDialog.CouldNotBuildSQL.DialogTitle" ), BaseMessages
          .getString( PKG, "UpdateDialog.CouldNotBuildSQL.DialogMessage" ), ke );
    }

  }

  private void getSchemaNames() {
    DatabaseMeta databaseMeta = transMeta.findDatabase( wConnection.getText() );
    if ( databaseMeta != null ) {
      Database database = new Database( loggingObject, databaseMeta );
      try {
        database.connect();
        String[] schemas = database.getSchemas();

        if ( null != schemas && schemas.length > 0 ) {
          schemas = Const.sortStrings( schemas );
          EnterSelectionDialog dialog = new EnterSelectionDialog( shell, schemas,
            BaseMessages.getString( PKG, "UpdateDialog.AvailableSchemas.Title", wConnection.getText() ),
            BaseMessages.getString( PKG, "UpdateDialog.AvailableSchemas.Message", wConnection.getText() ) );
          String d = dialog.open();
          if ( d != null ) {
            wSchema.setText( Const.NVL( d, "" ) );
            setTableFieldCombo();
          }

        } else {
          MessageBox mb = new MessageBox( shell, SWT.OK | SWT.ICON_ERROR );
          mb.setMessage( BaseMessages.getString( PKG, "UpdateDialog.NoSchema.Error" ) );
          mb.setText( BaseMessages.getString( PKG, "UpdateDialog.GetSchemas.Error" ) );
          mb.open();
        }
      } catch ( Exception e ) {
        new ErrorDialog( shell,
          BaseMessages.getString( PKG, "System.Dialog.Error.Title" ),
          BaseMessages.getString( PKG, "UpdateDialog.ErrorGettingSchemas" ), e );
      } finally {
        database.disconnect();
      }
    }
  }
}