/*! ******************************************************************************
*
* 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.fieldschangesequence;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.dialogs.MessageDialogWithToggle;
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.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.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.fieldschangesequence.FieldsChangeSequenceMeta;
import org.pentaho.di.ui.core.dialog.ErrorDialog;
import org.pentaho.di.ui.core.gui.GUIResource;
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 FieldsChangeSequenceDialog extends BaseStepDialog implements StepDialogInterface {
private static Class<?> PKG = FieldsChangeSequenceMeta.class; // for i18n purposes, needed by Translator2!!
private FieldsChangeSequenceMeta input;
private Label wlStart;
private TextVar wStart;
private FormData fdlStart, fdStart;
private Label wlIncrement;
private TextVar wIncrement;
private FormData fdlIncrement, fdIncrement;
private Label wlFields;
private TableView wFields;
private FormData fdlFields, fdFields;
private Label wlResult;
private Text wResult;
private FormData fdlResult, fdResult;
private Map<String, Integer> inputFields;
private ColumnInfo[] colinf;
public static final String STRING_CHANGE_SEQUENCE_WARNING_PARAMETER = "ChangeSequenceSortWarning";
public FieldsChangeSequenceDialog( Shell parent, Object in, TransMeta tr, String sname ) {
super( parent, (BaseStepMeta) in, tr, sname );
input = (FieldsChangeSequenceMeta) 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.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, "FieldsChangeSequenceDialog.Shell.Title" ) );
int middle = props.getMiddlePct();
int margin = Const.MARGIN;
// Stepname line
wlStepname = new Label( shell, SWT.RIGHT );
wlStepname.setText( BaseMessages.getString( PKG, "FieldsChangeSequenceDialog.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 );
// Result line...
wlResult = new Label( shell, SWT.RIGHT );
wlResult.setText( BaseMessages.getString( PKG, "FieldsChangeSequenceDialog.Result.Label" ) );
props.setLook( wlResult );
fdlResult = new FormData();
fdlResult.left = new FormAttachment( 0, 0 );
fdlResult.right = new FormAttachment( middle, -margin );
fdlResult.top = new FormAttachment( wStepname, 2 * margin );
wlResult.setLayoutData( fdlResult );
wResult = new Text( shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
props.setLook( wResult );
wResult.addModifyListener( lsMod );
fdResult = new FormData();
fdResult.left = new FormAttachment( middle, 0 );
fdResult.top = new FormAttachment( wStepname, 2 * margin );
fdResult.right = new FormAttachment( 100, 0 );
wResult.setLayoutData( fdResult );
// Start
wlStart = new Label( shell, SWT.RIGHT );
wlStart.setText( BaseMessages.getString( PKG, "FieldsChangeSequenceDialog.Start.Label" ) );
props.setLook( wlStart );
fdlStart = new FormData();
fdlStart.left = new FormAttachment( 0, 0 );
fdlStart.right = new FormAttachment( middle, -margin );
fdlStart.top = new FormAttachment( wResult, margin );
wlStart.setLayoutData( fdlStart );
wStart = new TextVar( transMeta, shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
props.setLook( wStart );
fdStart = new FormData();
fdStart.left = new FormAttachment( middle, 0 );
fdStart.top = new FormAttachment( wResult, margin );
fdStart.right = new FormAttachment( 100, 0 );
wStart.setLayoutData( fdStart );
// Increment
wlIncrement = new Label( shell, SWT.RIGHT );
wlIncrement.setText( BaseMessages.getString( PKG, "FieldsChangeSequenceDialog.Increment.Label" ) );
props.setLook( wlIncrement );
fdlIncrement = new FormData();
fdlIncrement.left = new FormAttachment( 0, 0 );
fdlIncrement.right = new FormAttachment( middle, -margin );
fdlIncrement.top = new FormAttachment( wStart, margin );
wlIncrement.setLayoutData( fdlIncrement );
wIncrement = new TextVar( transMeta, shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER );
props.setLook( wIncrement );
fdIncrement = new FormData();
fdIncrement.left = new FormAttachment( middle, 0 );
fdIncrement.top = new FormAttachment( wStart, margin );
fdIncrement.right = new FormAttachment( 100, 0 );
wIncrement.setLayoutData( fdIncrement );
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, "System.Button.GetFields" ) );
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( shell, SWT.NONE );
wlFields.setText( BaseMessages.getString( PKG, "FieldsChangeSequenceDialog.Fields.Label" ) );
props.setLook( wlFields );
fdlFields = new FormData();
fdlFields.left = new FormAttachment( 0, 0 );
fdlFields.top = new FormAttachment( wIncrement, margin );
wlFields.setLayoutData( fdlFields );
final int FieldsCols = 1;
final int FieldsRows = input.getFieldName().length;
colinf = new ColumnInfo[FieldsCols];
colinf[0] =
new ColumnInfo(
BaseMessages.getString( PKG, "FieldsChangeSequenceDialog.Fieldname.Column" ),
ColumnInfo.COLUMN_TYPE_CCOMBO, new String[] { "" }, false );
wFields =
new TableView(
transMeta, shell, 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( wOK, -2 * margin );
wFields.setLayoutData( fdFields );
// 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();
}
} );
// Set the shell size, based upon previous time...
setSize();
getData();
//
// 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 );
if ( row != null ) {
// Remember these fields...
for ( int i = 0; i < row.size(); i++ ) {
inputFields.put( row.getValueMeta( i ).getName(), new Integer( i ) );
}
setComboBoxes();
}
// Dislay in red missing field names
Display.getDefault().asyncExec( new Runnable() {
public void run() {
if ( !wFields.isDisposed() ) {
for ( int i = 0; i < wFields.table.getItemCount(); i++ ) {
TableItem it = wFields.table.getItem( i );
if ( !Utils.isEmpty( it.getText( 1 ) ) ) {
if ( !inputFields.containsKey( it.getText( 1 ) ) ) {
it.setBackground( GUIResource.getInstance().getColorRed() );
}
}
}
}
}
} );
} catch ( KettleException e ) {
logError( BaseMessages.getString( PKG, "FieldsChangeSequenceDialog.ErrorGettingPreviousFields", e
.getMessage() ) );
}
}
}
};
new Thread( runnable ).start();
input.setChanged( changed );
shell.open();
while ( !shell.isDisposed() ) {
if ( !display.readAndDispatch() ) {
display.sleep();
}
}
return stepname;
}
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 );
colinf[0].setComboValues( fieldNames );
}
private void get() {
try {
RowMetaInterface r = transMeta.getPrevStepFields( stepname );
if ( r != null ) {
TableItemInsertListener insertListener = new TableItemInsertListener() {
public boolean tableItemInserted( TableItem tableItem, ValueMetaInterface v ) {
tableItem.setText( 2, BaseMessages.getString( PKG, "System.Combo.Yes" ) );
return true;
}
};
BaseStepDialog
.getFieldsFromPrevious( r, wFields, 1, new int[] { 1 }, new int[] {}, -1, -1, insertListener );
}
} catch ( KettleException ke ) {
new ErrorDialog( shell, BaseMessages.getString( PKG, "System.Dialog.GetFieldsFailed.Title" ), BaseMessages
.getString( PKG, "System.Dialog.GetFieldsFailed.Message" ), ke );
}
}
/**
* Copy information from the meta-data input to the dialog fields.
*/
public void getData() {
wStart.setText( Const.NVL( input.getStart(), "1" ) );
wIncrement.setText( Const.NVL( input.getIncrement(), "1" ) );
wResult.setText( Const.NVL( input.getResultFieldName(), "result" ) );
Table table = wFields.table;
if ( input.getFieldName().length > 0 ) {
table.removeAll();
}
for ( int i = 0; i < input.getFieldName().length; i++ ) {
TableItem ti = new TableItem( table, SWT.NONE );
ti.setText( 0, "" + ( i + 1 ) );
ti.setText( 1, input.getFieldName()[i] );
}
wFields.setRowNums();
wFields.optWidth( true );
wStepname.selectAll();
wStepname.setFocus();
}
private void cancel() {
stepname = null;
input.setChanged( changed );
dispose();
}
private void ok() {
if ( Utils.isEmpty( wStepname.getText() ) ) {
return;
}
stepname = wStepname.getText(); // return value
input.setStart( wStart.getText() );
input.setIncrement( wIncrement.getText() );
input.setResultFieldName( wResult.getText() );
int nrfields = wFields.nrNonEmpty();
input.allocate( nrfields );
for ( int i = 0; i < nrfields; i++ ) {
TableItem ti = wFields.getNonEmpty( i );
//CHECKSTYLE:Indentation:OFF
input.getFieldName()[i] = ti.getText( 1 );
}
if ( "Y".equalsIgnoreCase( props.getCustomParameter( STRING_CHANGE_SEQUENCE_WARNING_PARAMETER, "Y" ) ) ) {
MessageDialogWithToggle md =
new MessageDialogWithToggle( shell,
BaseMessages.getString( PKG, "FieldsChangeSequenceDialog.InputNeedSort.DialogTitle" ),
null,
BaseMessages.getString( PKG, "FieldsChangeSequenceDialog.InputNeedSort.DialogMessage", Const.CR ) + Const.CR,
MessageDialog.WARNING,
new String[] { BaseMessages.getString( PKG, "FieldsChangeSequenceDialog.InputNeedSort.Option1" ) },
0,
BaseMessages.getString( PKG, "FieldsChangeSequenceDialog.InputNeedSort.Option2" ), "N".equalsIgnoreCase(
props.getCustomParameter( STRING_CHANGE_SEQUENCE_WARNING_PARAMETER, "Y" ) ) );
MessageDialogWithToggle.setDefaultImage( GUIResource.getInstance().getImageSpoon() );
md.open();
props.setCustomParameter( STRING_CHANGE_SEQUENCE_WARNING_PARAMETER, md.getToggleState() ? "N" : "Y" );
props.saveProps();
}
dispose();
}
}