/*! ******************************************************************************
*
* 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.mappinginput;
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.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.row.value.ValueMetaFactory;
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.mappinginput.MappingInputMeta;
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 MappingInputDialog extends BaseStepDialog implements StepDialogInterface {
private static Class<?> PKG = MappingInputMeta.class; // for i18n purposes, needed by Translator2!!
private Label wlFields;
private TableView wFields;
private FormData fdlFields, fdFields;
private Button wUnspecified;
private FormData fdUnspecified;
private MappingInputMeta input;
public MappingInputDialog( Shell parent, Object in, TransMeta tr, String sname ) {
super( parent, (BaseStepMeta) in, tr, sname );
input = (MappingInputMeta) 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, "MappingInputDialog.Shell.Title" ) );
int middle = props.getMiddlePct();
int margin = Const.MARGIN;
// Stepname line
wlStepname = new Label( shell, SWT.RIGHT );
wlStepname.setText( BaseMessages.getString( PKG, "MappingInputDialog.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 );
// 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 check box to pass through and sort unspecified fields...
//
wUnspecified = new Button( shell, SWT.CHECK );
wUnspecified.setText( BaseMessages.getString( PKG, "MappingInputDialog.Unspecified.Label" ) );
props.setLook( wUnspecified );
fdUnspecified = new FormData();
fdUnspecified.left = new FormAttachment( 0, 0 );
fdUnspecified.right = new FormAttachment( 100, 0 );
fdUnspecified.bottom = new FormAttachment( wOK, -margin * 2 );
wUnspecified.setLayoutData( fdUnspecified );
wUnspecified.addSelectionListener( new SelectionAdapter() {
public void widgetSelected( SelectionEvent e ) {
input.setChanged();
}
} );
// The grid goes in between the step name and the check box...
//
wlFields = new Label( shell, SWT.NONE );
wlFields.setText( BaseMessages.getString( PKG, "MappingInputDialog.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 FieldsRows = input.getFieldName().length;
ColumnInfo[] colinf =
new ColumnInfo[] {
new ColumnInfo(
BaseMessages.getString( PKG, "MappingInputDialog.ColumnInfo.Name" ), ColumnInfo.COLUMN_TYPE_TEXT,
false ),
new ColumnInfo(
BaseMessages.getString( PKG, "MappingInputDialog.ColumnInfo.Type" ),
ColumnInfo.COLUMN_TYPE_CCOMBO, ValueMetaFactory.getValueMetaNames() ),
new ColumnInfo(
BaseMessages.getString( PKG, "MappingInputDialog.ColumnInfo.Length" ),
ColumnInfo.COLUMN_TYPE_TEXT, false ),
new ColumnInfo(
BaseMessages.getString( PKG, "MappingInputDialog.ColumnInfo.Precision" ),
ColumnInfo.COLUMN_TYPE_TEXT, 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( wUnspecified, -margin * 2 );
wFields.setLayoutData( fdFields );
// 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( changed );
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() {
for ( int i = 0; i < input.getFieldName().length; i++ ) {
if ( input.getFieldName()[i] != null ) {
TableItem item = wFields.table.getItem( i );
item.setText( 1, input.getFieldName()[i] );
String type = ValueMetaFactory.getValueMetaName( input.getFieldType()[i] );
int length = input.getFieldLength()[i];
int prec = input.getFieldPrecision()[i];
if ( type != null ) {
item.setText( 2, type );
}
if ( length >= 0 ) {
item.setText( 3, "" + length );
}
if ( prec >= 0 ) {
item.setText( 4, "" + prec );
}
}
}
wUnspecified.setSelection( input.isSelectingAndSortingUnspecifiedFields() );
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
int nrfields = wFields.nrNonEmpty();
input.allocate( nrfields );
//CHECKSTYLE:Indentation:OFF
for ( int i = 0; i < nrfields; i++ ) {
TableItem item = wFields.getNonEmpty( i );
input.getFieldName()[i] = item.getText( 1 );
input.getFieldType()[i] = ValueMetaFactory.getIdForValueMeta( item.getText( 2 ) );
String slength = item.getText( 3 );
String sprec = item.getText( 4 );
input.getFieldLength()[i] = Const.toInt( slength, -1 );
input.getFieldPrecision()[i] = Const.toInt( sprec, -1 );
}
input.setSelectingAndSortingUnspecifiedFields( wUnspecified.getSelection() );
dispose();
}
}