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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
*
* 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.setvalueconstant;
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.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.setvalueconstant.SetValueConstantMeta;
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;
import org.pentaho.di.ui.trans.step.TableItemInsertListener;
public class SetValueConstantDialog extends BaseStepDialog implements StepDialogInterface {
private static Class<?> PKG = SetValueConstantMeta.class; // for i18n purposes, needed by Translator2!!
private SetValueConstantMeta input;
private ModifyListener lsMod;
private ModifyListener oldlsMod;
private int middle;
private int margin;
/**
* all fields from the previous steps
*/
private Map<String, Integer> inputFields;
private Label wlFields;
private TableView wFields;
private FormData fdlFields, fdFields;
private ColumnInfo[] colinf;
private Label wluseVars;
private Button wuseVars;
public SetValueConstantDialog( Shell parent, Object in, TransMeta tr, String sname ) {
super( parent, (BaseStepMeta) in, tr, sname );
input = (SetValueConstantMeta) 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 );
lsMod = new ModifyListener() {
public void modifyText( ModifyEvent e ) {
input.setChanged();
}
};
changed = input.hasChanged();
oldlsMod = lsMod;
FormLayout formLayout = new FormLayout();
formLayout.marginWidth = Const.FORM_MARGIN;
formLayout.marginHeight = Const.FORM_MARGIN;
middle = props.getMiddlePct();
margin = Const.MARGIN;
shell.setLayout( formLayout );
shell.setText( BaseMessages.getString( PKG, "SetValueConstantDialog.Shell.Title" ) );
// Stepname line
wlStepname = new Label( shell, SWT.RIGHT );
wlStepname.setText( BaseMessages.getString( PKG, "SetValueConstantDialog.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 );
// Use variable?
wluseVars = new Label( shell, SWT.RIGHT );
wluseVars.setText( BaseMessages.getString( PKG, "SetValueConstantDialog.useVars.Label" ) );
props.setLook( wluseVars );
FormData fdlUpdate = new FormData();
fdlUpdate.left = new FormAttachment( 0, 0 );
fdlUpdate.right = new FormAttachment( middle, -margin );
fdlUpdate.top = new FormAttachment( wStepname, 2 * margin );
wluseVars.setLayoutData( fdlUpdate );
wuseVars = new Button( shell, SWT.CHECK );
wuseVars.setToolTipText( BaseMessages.getString( PKG, "SetValueConstantDialog.useVars.Tooltip" ) );
props.setLook( wuseVars );
FormData fdUpdate = new FormData();
fdUpdate.left = new FormAttachment( middle, 0 );
fdUpdate.top = new FormAttachment( wStepname, 2 * margin );
fdUpdate.right = new FormAttachment( 100, 0 );
wuseVars.setLayoutData( fdUpdate );
// Table with fields
wlFields = new Label( shell, SWT.NONE );
wlFields.setText( BaseMessages.getString( PKG, "SetValueConstantDialog.Fields.Label" ) );
props.setLook( wlFields );
fdlFields = new FormData();
fdlFields.left = new FormAttachment( 0, 0 );
fdlFields.top = new FormAttachment( wuseVars, margin );
wlFields.setLayoutData( fdlFields );
int FieldsCols = 4;
final int FieldsRows = input.getFieldName().length;
colinf = new ColumnInfo[FieldsCols];
colinf[0] =
new ColumnInfo(
BaseMessages.getString( PKG, "SetValueConstantDialog.Fieldname.Column" ),
ColumnInfo.COLUMN_TYPE_CCOMBO, new String[] {}, false );
colinf[1] =
new ColumnInfo(
BaseMessages.getString( PKG, "SetValueConstantDialog.Value.Column" ), ColumnInfo.COLUMN_TYPE_TEXT,
false );
colinf[2] =
new ColumnInfo(
BaseMessages.getString( PKG, "SetValueConstantDialog.Value.ConversionMask" ),
ColumnInfo.COLUMN_TYPE_CCOMBO, Const.getDateFormats() );
colinf[3] =
new ColumnInfo(
BaseMessages.getString( PKG, "SetValueConstantDialog.Value.SetEmptyString" ),
ColumnInfo.COLUMN_TYPE_CCOMBO,
new String[] {
BaseMessages.getString( PKG, "System.Combo.Yes" ), BaseMessages.getString( PKG, "System.Combo.No" ) } );
wFields =
new TableView(
transMeta, shell, SWT.BORDER | SWT.FULL_SELECTION | SWT.MULTI, colinf, FieldsRows, oldlsMod, 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, -50 );
wFields.setLayoutData( fdFields );
//
// 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(), Integer.valueOf( i ) );
}
setComboBoxes();
} catch ( KettleException e ) {
logError( BaseMessages.getString( PKG, "System.Dialog.GetFieldsFailed.Message" ) );
}
}
}
};
new Thread( runnable ).start();
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, wFields );
// 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();
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( stepMeta );
if ( r != null ) {
TableItemInsertListener insertListener = new TableItemInsertListener() {
public boolean tableItemInserted( TableItem tableItem, ValueMetaInterface v ) {
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() {
wuseVars.setSelection( input.isUseVars() );
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 ) );
if ( input.getFieldName()[i] != null ) {
ti.setText( 1, input.getFieldName()[i] );
}
if ( input.getReplaceValue()[i] != null ) {
ti.setText( 2, input.getReplaceValue()[i] );
}
if ( input.getReplaceMask()[i] != null ) {
ti.setText( 3, input.getReplaceMask()[i] );
}
ti.setText( 4, input.isSetEmptyString()[i]
? BaseMessages.getString( PKG, "System.Combo.Yes" ) : BaseMessages.getString( PKG, "System.Combo.No" ) );
}
wFields.setRowNums();
wFields.removeEmptyRows();
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.setUseVars( wuseVars.getSelection() );
int count = wFields.nrNonEmpty();
input.allocate( count );
//CHECKSTYLE:Indentation:OFF
for ( int i = 0; i < count; i++ ) {
TableItem ti = wFields.getNonEmpty( i );
input.getFieldName()[i] = ti.getText( 1 );
input.isSetEmptyString()[i] =
BaseMessages.getString( PKG, "System.Combo.Yes" ).equalsIgnoreCase( ti.getText( 4 ) );
input.getReplaceValue()[i] = input.isSetEmptyString()[i] ? "" : ti.getText( 2 );
input.getReplaceMask()[i] = input.isSetEmptyString()[i] ? "" : ti.getText( 3 );
}
dispose();
}
}