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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");
* 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.switchcase;
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.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.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.exception.KettleStepException;
import org.pentaho.di.core.row.RowMetaInterface;
import org.pentaho.di.core.row.value.ValueMetaBase;
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.steps.switchcase.SwitchCaseMeta;
import org.pentaho.di.trans.steps.switchcase.SwitchCaseTarget;
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.trans.step.BaseStepDialog;
public class SwitchCaseDialog extends BaseStepDialog implements StepDialogInterface {
private static Class<?> PKG = SwitchCaseMeta.class; // for i18n purposes, needed by Translator2!!
private Label wlFieldName;
private CCombo wFieldName;
private Label wlDataType;
private CCombo wDataType;
private Label wlConversionMask;
private Text wConversionMask;
private Label wlDecimalSymbol;
private Text wDecimalSymbol;
private Label wlGroupingSymbol;
private Text wGroupingSymbol;
private Label wlValues;
private TableView wValues;
private Label wlDefaultTarget;
private CCombo wDefaultTarget;
private Label wlContains;
private Button wContains;
private FormData fdlContains, fdContains;
private SwitchCaseMeta input;
private RowMetaInterface inputFields;
public SwitchCaseDialog( Shell parent, Object in, TransMeta tr, String sname ) {
super( parent, (BaseStepMeta) in, tr, sname );
input = (SwitchCaseMeta) 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();
}
};
SelectionAdapter lsSel = new SelectionAdapter() {
public void widgetSelected( SelectionEvent arg0 ) {
input.setChanged();
}
};
backupChanged = input.hasChanged();
FormLayout formLayout = new FormLayout();
formLayout.marginWidth = Const.FORM_MARGIN;
formLayout.marginHeight = Const.FORM_MARGIN;
shell.setLayout( formLayout );
shell.setText( BaseMessages.getString( PKG, "SwitchCaseDialog.Shell.Title" ) );
int middle = props.getMiddlePct();
int margin = Const.MARGIN;
// Stepname line
wlStepname = new Label( shell, SWT.RIGHT );
wlStepname.setText( BaseMessages.getString( PKG, "SwitchCaseDialog.Stepname.Label" ) );
props.setLook( wlStepname );
fdlStepname = new FormData();
fdlStepname.left = new FormAttachment( 0, 0 );
fdlStepname.right = new FormAttachment( middle, 0 );
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, margin );
fdStepname.top = new FormAttachment( 0, margin );
fdStepname.right = new FormAttachment( 100, 0 );
wStepname.setLayoutData( fdStepname );
// The name of the field to validate
//
wlFieldName = new Label( shell, SWT.RIGHT );
wlFieldName.setText( BaseMessages.getString( PKG, "SwitchCaseDialog.FieldName.Label" ) );
props.setLook( wlFieldName );
FormData fdlFieldName = new FormData();
fdlFieldName.left = new FormAttachment( 0, 0 );
fdlFieldName.right = new FormAttachment( middle, 0 );
fdlFieldName.top = new FormAttachment( wStepname, margin );
wlFieldName.setLayoutData( fdlFieldName );
wFieldName = new CCombo( shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
props.setLook( wFieldName );
FormData fdFieldName = new FormData();
fdFieldName.left = new FormAttachment( middle, margin );
fdFieldName.right = new FormAttachment( 100, 0 );
fdFieldName.top = new FormAttachment( wStepname, margin );
wFieldName.setLayoutData( fdFieldName );
wFieldName.addModifyListener( lsMod );
// TODO: grab field list in thread in the background...
//
try {
inputFields = transMeta.getPrevStepFields( stepMeta );
wFieldName.setItems( inputFields.getFieldNames() );
} catch ( KettleStepException ex ) {
new ErrorDialog( shell,
BaseMessages.getString( PKG, "SwitchCaseDialog.Exception.CantGetFieldsFromPreviousSteps.Title" ),
BaseMessages.getString( PKG, "SwitchCaseDialog.Exception.CantGetFieldsFromPreviousSteps.Message" ), ex );
}
wlContains = new Label( shell, SWT.RIGHT );
wlContains.setText( BaseMessages.getString( PKG, "SwitchCaseDialog.Contains.Label" ) );
props.setLook( wlContains );
fdlContains = new FormData();
fdlContains.left = new FormAttachment( 0, 0 );
fdlContains.right = new FormAttachment( middle, -margin );
fdlContains.top = new FormAttachment( wFieldName, margin * 2 );
wlContains.setLayoutData( fdlContains );
wContains = new Button( shell, SWT.CHECK );
wContains.setToolTipText( BaseMessages.getString( PKG, "SwitchCaseDialog.Contains.Tooltip" ) );
props.setLook( wContains );
fdContains = new FormData();
fdContains.left = new FormAttachment( middle, 0 );
fdContains.top = new FormAttachment( wFieldName, margin * 2 );
fdContains.right = new FormAttachment( 100, 0 );
wContains.setLayoutData( fdContains );
wContains.addSelectionListener( lsSel );
// Data type
//
wlDataType = new Label( shell, SWT.RIGHT );
wlDataType.setText( BaseMessages.getString( PKG, "SwitchCaseDialog.DataType.Label" ) );
props.setLook( wlDataType );
FormData fdlDataType = new FormData();
fdlDataType.left = new FormAttachment( 0, 0 );
fdlDataType.right = new FormAttachment( middle, 0 );
fdlDataType.top = new FormAttachment( wContains, margin );
wlDataType.setLayoutData( fdlDataType );
wDataType = new CCombo( shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
wDataType.setItems( ValueMetaBase.getTypes() );
props.setLook( wDataType );
FormData fdDataType = new FormData();
fdDataType.left = new FormAttachment( middle, margin );
fdDataType.right = new FormAttachment( 100, 0 );
fdDataType.top = new FormAttachment( wContains, margin );
wDataType.setLayoutData( fdDataType );
wDataType.addModifyListener( lsMod );
// Conversion mask
//
wlConversionMask = new Label( shell, SWT.RIGHT );
wlConversionMask.setText( BaseMessages.getString( PKG, "SwitchCaseDialog.ConversionMask.Label" ) );
props.setLook( wlConversionMask );
FormData fdlConversionMask = new FormData();
fdlConversionMask.left = new FormAttachment( 0, 0 );
fdlConversionMask.right = new FormAttachment( middle, 0 );
fdlConversionMask.top = new FormAttachment( wDataType, margin );
wlConversionMask.setLayoutData( fdlConversionMask );
wConversionMask = new Text( shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
props.setLook( wConversionMask );
FormData fdConversionMask = new FormData();
fdConversionMask.left = new FormAttachment( middle, margin );
fdConversionMask.right = new FormAttachment( 100, 0 );
fdConversionMask.top = new FormAttachment( wDataType, margin );
wConversionMask.setLayoutData( fdConversionMask );
wConversionMask.addModifyListener( lsMod );
// Decimal Symbol
//
wlDecimalSymbol = new Label( shell, SWT.RIGHT );
wlDecimalSymbol.setText( BaseMessages.getString( PKG, "SwitchCaseDialog.DecimalSymbol.Label" ) );
props.setLook( wlDecimalSymbol );
FormData fdlDecimalSymbol = new FormData();
fdlDecimalSymbol.left = new FormAttachment( 0, 0 );
fdlDecimalSymbol.right = new FormAttachment( middle, 0 );
fdlDecimalSymbol.top = new FormAttachment( wConversionMask, margin );
wlDecimalSymbol.setLayoutData( fdlDecimalSymbol );
wDecimalSymbol = new Text( shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
props.setLook( wDecimalSymbol );
FormData fdDecimalSymbol = new FormData();
fdDecimalSymbol.left = new FormAttachment( middle, margin );
fdDecimalSymbol.right = new FormAttachment( 100, 0 );
fdDecimalSymbol.top = new FormAttachment( wConversionMask, margin );
wDecimalSymbol.setLayoutData( fdDecimalSymbol );
wDecimalSymbol.addModifyListener( lsMod );
// Grouping Symbol
//
wlGroupingSymbol = new Label( shell, SWT.RIGHT );
wlGroupingSymbol.setText( BaseMessages.getString( PKG, "SwitchCaseDialog.GroupingSymbol.Label" ) );
props.setLook( wlGroupingSymbol );
FormData fdlGroupingSymbol = new FormData();
fdlGroupingSymbol.left = new FormAttachment( 0, 0 );
fdlGroupingSymbol.right = new FormAttachment( middle, 0 );
fdlGroupingSymbol.top = new FormAttachment( wDecimalSymbol, margin );
wlGroupingSymbol.setLayoutData( fdlGroupingSymbol );
wGroupingSymbol = new Text( shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
props.setLook( wGroupingSymbol );
FormData fdGroupingSymbol = new FormData();
fdGroupingSymbol.left = new FormAttachment( middle, margin );
fdGroupingSymbol.right = new FormAttachment( 100, 0 );
fdGroupingSymbol.top = new FormAttachment( wDecimalSymbol, margin );
wGroupingSymbol.setLayoutData( fdGroupingSymbol );
wGroupingSymbol.addModifyListener( lsMod );
String[] nextStepNames = transMeta.getNextStepNames( stepMeta );
// The values to switch on...
//
wlValues = new Label( shell, SWT.RIGHT );
wlValues.setText( BaseMessages.getString( PKG, "SwitchCaseDialog.ValueCases.Label" ) );
props.setLook( wlValues );
FormData fdlValues = new FormData();
fdlValues.left = new FormAttachment( 0, 0 );
fdlValues.top = new FormAttachment( wGroupingSymbol, margin );
fdlValues.right = new FormAttachment( middle, 0 );
wlValues.setLayoutData( fdlValues );
ColumnInfo[] colinf =
new ColumnInfo[] {
new ColumnInfo(
BaseMessages.getString( PKG, "SwitchCaseDialog.ColumnInfo.Value" ), ColumnInfo.COLUMN_TYPE_TEXT,
false ),
new ColumnInfo(
BaseMessages.getString( PKG, "SwitchCaseDialog.ColumnInfo.TargetStep" ),
ColumnInfo.COLUMN_TYPE_CCOMBO, nextStepNames, false ), };
wValues =
new TableView( transMeta, shell, SWT.BORDER | SWT.FULL_SELECTION | SWT.MULTI, colinf, input
.getStepIOMeta().getTargetStreams().size(), lsMod, props );
// Some 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 );
// The name of the field to validate
//
wlDefaultTarget = new Label( shell, SWT.RIGHT );
wlDefaultTarget.setText( BaseMessages.getString( PKG, "SwitchCaseDialog.DefaultTarget.Label" ) );
props.setLook( wlDefaultTarget );
FormData fdlDefaultTarget = new FormData();
fdlDefaultTarget.left = new FormAttachment( 0, 0 );
fdlDefaultTarget.right = new FormAttachment( middle, 0 );
fdlDefaultTarget.bottom = new FormAttachment( wOK, -margin * 2 );
wlDefaultTarget.setLayoutData( fdlDefaultTarget );
wDefaultTarget = new CCombo( shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
props.setLook( wDefaultTarget );
FormData fdDefaultTarget = new FormData();
fdDefaultTarget.left = new FormAttachment( middle, margin );
fdDefaultTarget.right = new FormAttachment( 100, 0 );
fdDefaultTarget.bottom = new FormAttachment( wOK, -margin * 2 );
wDefaultTarget.setLayoutData( fdDefaultTarget );
wDefaultTarget.setItems( nextStepNames );
wDefaultTarget.addModifyListener( lsMod );
FormData fdValues = new FormData();
fdValues.left = new FormAttachment( middle, margin );
fdValues.top = new FormAttachment( wGroupingSymbol, margin );
fdValues.right = new FormAttachment( 100, 0 );
fdValues.bottom = new FormAttachment( wDefaultTarget, -margin );
wValues.setLayoutData( fdValues );
// 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();
}
};
wStepname.addSelectionListener( lsDef );
// Detect X or ALT-F4 or something that kills this window...
shell.addShellListener( new ShellAdapter() {
public void shellClosed( ShellEvent e ) {
cancel();
}
} );
// Set the shell size, based upon previous time...
setSize();
getData();
input.setChanged( backupChanged );
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() {
wFieldName.setText( Const.NVL( input.getFieldname(), "" ) );
wContains.setSelection( input.isContains() );
wDataType.setText( ValueMetaBase.getTypeDesc( input.getCaseValueType() ) );
wDecimalSymbol.setText( Const.NVL( input.getCaseValueDecimal(), "" ) );
wGroupingSymbol.setText( Const.NVL( input.getCaseValueGroup(), "" ) );
wConversionMask.setText( Const.NVL( input.getCaseValueFormat(), "" ) );
for ( int i = 0; i < input.getCaseTargets().size(); i++ ) {
TableItem item = wValues.table.getItem( i );
SwitchCaseTarget target = input.getCaseTargets().get( i );
if ( target != null ) {
item.setText( 1, Const.NVL( target.caseValue, "" ) ); // The value
item.setText( 2, target.caseTargetStep == null ? "" : target.caseTargetStep.getName() ); // The target step name
}
}
wValues.removeEmptyRows();
wValues.setRowNums();
wValues.optWidth( true );
wDefaultTarget.setText( input.getDefaultTargetStep() == null ? "" : input.getDefaultTargetStep().getName() );
wStepname.selectAll();
wStepname.setFocus();
}
private void cancel() {
stepname = null;
input.setChanged( backupChanged );
dispose();
}
private void ok() {
if ( Utils.isEmpty( wStepname.getText() ) ) {
return;
}
input.setFieldname( wFieldName.getText() );
input.setContains( wContains.getSelection() );
input.setCaseValueType( ValueMetaBase.getType( wDataType.getText() ) );
input.setCaseValueFormat( wConversionMask.getText() );
input.setCaseValueDecimal( wDecimalSymbol.getText() );
input.setCaseValueGroup( wGroupingSymbol.getText() );
int nrValues = wValues.nrNonEmpty();
input.allocate();
for ( int i = 0; i < nrValues; i++ ) {
TableItem item = wValues.getNonEmpty( i );
SwitchCaseTarget target = new SwitchCaseTarget();
target.caseValue = item.getText( 1 );
target.caseTargetStep = transMeta.findStep( item.getText( 2 ) );
input.getCaseTargets().add( target );
}
input.setDefaultTargetStep( transMeta.findStep( wDefaultTarget.getText() ) );
stepname = wStepname.getText(); // return value
dispose();
}
}