/******************************************************************************
* Copyright (c) 2007, 2008 g-Eclipse consortium
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Initial development of the original code was made for
* project g-Eclipse founded by European Union
* project number: FP6-IST-034327 http://www.geclipse.eu/
*
* Contributor(s):
* PSNC:
* - Katarzyna Bylec (katis@man.poznan.pl)
* - Nicholas Loulloudes (loulloudes@cs.ucy.ac.cy)
*
*****************************************************************************/
package eu.geclipse.jsdl.ui.widgets;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.ColumnLayoutData;
import org.eclipse.jface.viewers.ColumnViewerEditor;
import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy;
import org.eclipse.jface.viewers.ColumnWeightData;
import org.eclipse.jface.viewers.DialogCellEditor;
import org.eclipse.jface.viewers.ICellModifier;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TableLayout;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TableViewerEditor;
import org.eclipse.jface.viewers.TextCellEditor;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import eu.geclipse.jsdl.JSDLModelFacade;
import eu.geclipse.jsdl.model.base.DataStagingType;
import eu.geclipse.jsdl.model.base.SourceTargetType;
import eu.geclipse.jsdl.ui.internal.dialogs.DataStagingInDialog;
import eu.geclipse.ui.dialogs.GridFileDialog;
/**
* Set of controls used to handle presentation of Data Staging In (see
* {@link DataStagingType} details to user. Information is presented in a table
* with two columns (name of a file and a source URI). User can add new entry to
* this table and edit or remove existing ones.
*/
public class DataStageInTable {
/**
* This constant is used to inform the class' constructor that buttons (Add,
* Edit and Remove button) should be placed on the right side of the table.
*/
public static final int BUTTONS_RIGHT = 0;
/**
* This constant is used to inform the class' constructor that buttons (Add,
* Edit and Remove button) should be placed below the table.
*/
public static final int BUTTONS_BOTTOM = 1;
TableViewer tableViewer;
List<DataStagingType> input = new ArrayList<DataStagingType>();
Composite mainComp;
private Table table;
private Button addButton;
private Button editButton;
private Button removeButton;
/**
* Creates new instance of table, table viewer and 3 buttons (add, edit and
* remove)
*
* @param parent control's parent
* @param buttonsPosition
*/
public DataStageInTable( final Composite parent, final int buttonsPosition ) {
this( parent, new ArrayList<DataStagingType>(), buttonsPosition );
}
/**
* @param parent
* @param input
* @param buttonsPosition
*/
public DataStageInTable( final Composite parent,
final List<DataStagingType> input,
final int buttonsPosition )
{
this.input = input;
this.mainComp = new Composite( parent, SWT.NONE );
GridLayout gLayout;
if( buttonsPosition == DataStageInTable.BUTTONS_RIGHT ) {
gLayout = new GridLayout( 2, false );
} else {
gLayout = new GridLayout( 1, false );
}
this.mainComp.setLayout( gLayout );
GridData gData = new GridData( GridData.FILL_BOTH
| GridData.GRAB_HORIZONTAL );
this.mainComp.setLayoutData( gData );
this.table = new Table( this.mainComp, SWT.BORDER
| SWT.VIRTUAL
| SWT.MULTI
| SWT.FULL_SELECTION );
this.table.setHeaderVisible( true );
this.table.setLinesVisible( true );
gData = new GridData( GridData.FILL_BOTH );
gData.grabExcessVerticalSpace = true;
gData.widthHint = 400;
gData.heightHint = 100;
this.table.setLayoutData( gData );
TableLayout tableLayout = new TableLayout();
this.table.setLayout( tableLayout );
TableColumn nameColumn = new TableColumn( this.table, SWT.CENTER );
ColumnLayoutData data = new ColumnWeightData( 100 );
tableLayout.addColumnData( data );
data = new ColumnWeightData( 100 );
tableLayout.addColumnData( data );
data = new ColumnWeightData( 150 );
tableLayout.addColumnData( data );
nameColumn.setText( Messages.getString( "DataStageInTable.source_location_field_label" ) ); //$NON-NLS-1$
TableColumn typeColumn = new TableColumn( this.table, SWT.LEFT );
typeColumn.setText( Messages.getString( "DataStageInTable.name_field_label" ) ); //$NON-NLS-1$
this.tableViewer = new TableViewer( this.table );
IStructuredContentProvider contentProvider = new DataStageInContentProvider();
this.tableViewer.setContentProvider( contentProvider );
this.tableViewer.setColumnProperties( new String[]{
Messages.getString( "DataStageInTable.source_location_field_label" ), //$NON-NLS-1$
Messages.getString( "DataStageInTable.name_field_label" ) //$NON-NLS-1$
} );
this.tableViewer.setLabelProvider( new DataStageInContentLabelProvider() );
if( this.input == null ) {
this.input = new ArrayList<DataStagingType>();
}
this.tableViewer.setInput( this.input );
this.tableViewer.addSelectionChangedListener( new ISelectionChangedListener()
{
public void selectionChanged( final SelectionChangedEvent event ) {
updateButtons();
}
} );
Composite buttonsComp = new Composite( this.mainComp, SWT.NONE );
if( buttonsPosition == DataStageInTable.BUTTONS_BOTTOM ) {
gLayout = new GridLayout( 3, true );
} else {
gLayout = new GridLayout( 1, false );
}
buttonsComp.setLayout( gLayout );
this.addButton = new Button( buttonsComp, SWT.PUSH );
gData = new GridData( GridData.VERTICAL_ALIGN_BEGINNING
| GridData.HORIZONTAL_ALIGN_END );
buttonsComp.setLayoutData( gData );
gData = new GridData( GridData.FILL_BOTH );
this.addButton.setLayoutData( gData );
this.addButton.setText( Messages.getString( "DataStageInTable.add_button_label" ) ); //$NON-NLS-1$
this.addButton.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( final SelectionEvent event ) {
editDataStagingEntry( null );
}
} );
this.editButton = new Button( buttonsComp, SWT.PUSH );
gData = new GridData( GridData.FILL_BOTH );
this.editButton.setLayoutData( gData );
this.editButton.setText( Messages.getString( "DataStageInTable.edit_button_label" ) ); //$NON-NLS-1$
this.editButton.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( final SelectionEvent event ) {
editDataStagingEntry( getSelectedObject() );
}
} );
this.removeButton = new Button( buttonsComp, SWT.PUSH );
gData = new GridData( GridData.FILL_BOTH );
this.removeButton.setLayoutData( gData );
this.removeButton.setText( Messages.getString( "DataStageInTable.remove_button_label" ) ); //$NON-NLS-1$
this.removeButton.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( final SelectionEvent event ) {
DataStageInTable.this.input.remove( getSelectedObject() );
DataStageInTable.this.tableViewer.refresh();
}
} );
DialogCellEditor editor = new DialogCellEditor() {
@Override
protected Object openDialogBox( final Control cellEditorWindow ) {
String filename = ( String )doGetValue();
GridFileDialog dialog = new GridFileDialog( DataStageInTable.this.mainComp.getShell(),
GridFileDialog.STYLE_ALLOW_ONLY_EXISTING
| GridFileDialog.STYLE_ALLOW_ONLY_FILES );
if( dialog.open() == Window.OK ) {
URI[] uris = dialog.getSelectedURIs();
if( ( uris != null ) && ( uris.length > 0 ) ) {
filename = uris[ 0 ].toString();
}
}
// IGridConnectionElement connection = GridFileDialog.openFileDialog(
// DataStageInTable.this.mainComp.getShell(),
// Messages.getString( "DataStageInTable.grid_file_dialog_title" ),
// //$NON-NLS-1$
// null,
// true );
// if( connection != null ) {
// try {
// filename = connection.getConnectionFileStore().toString();
// } catch( CoreException cExc ) {
// ProblemException exception = new ProblemException(
// ICoreProblems.NET_CONNECTION_FAILED,
// cExc,
// Activator.PLUGIN_ID );
// ProblemDialog.openProblem( DataStageInTable.this.mainComp.getShell(),
// Messages.getString( "DataStageInTable.error" ), //$NON-NLS-1$
// Messages.getString( "DataStageInTable.error" ), //$NON-NLS-1$
// exception );
// }
// }
return filename;
}
};
CellEditor[] table1 = new CellEditor[ 1 ];
table1[ 0 ] = editor;
editor.create( this.table );
this.tableViewer.setCellModifier( new ICellModifier() {
public boolean canModify( final Object element, final String property ) {
return true;
}
public Object getValue( final Object element, final String property ) {
int columnIndex = -1;
if( property.equals( Messages.getString( "DataStageInTable.source_location_field_label" ) ) ) { //$NON-NLS-1$
columnIndex = 0;
}
if( property.equals( Messages.getString( "DataStageInTable.name_field_label" ) ) ) { //$NON-NLS-1$
columnIndex = 1;
}
Object result = null;
DataStagingType data1 = ( DataStagingType )element;
switch( columnIndex ) {
case 0:
result = data1.getSource().getURI();
break;
case 1:
result = data1.getFileName();
break;
default:
result = ""; //$NON-NLS-1$
}
return result;
}
public void modify( final Object element,
final String property,
final Object value )
{
int columnIndex = -1;
if( property.equals( Messages.getString( "DataStageInTable.source_location_field_label" ) ) ) { //$NON-NLS-1$
columnIndex = 0;
}
if( property.equals( Messages.getString( "DataStageInTable.name_field_label" ) ) ) { //$NON-NLS-1$
columnIndex = 1;
}
TableItem item = ( TableItem )element;
DataStagingType dataOld = ( DataStagingType )item.getData();
DataStagingType dataNew = null;
switch( columnIndex ) {
case 0:
dataNew = getNewDataStagingType( dataOld.getFileName(),
( String )value );
if( !dataNew.getFileName().equals( dataOld.getFileName() )
|| !dataNew.getSource().getURI().equals( dataOld.getSource()
.getURI() ) )
{
if( !isDataInInput( dataNew ) ) {
// DataStageInTable.this.input.add( dataNew );
// DataStageInTable.this.input.remove( dataOld );
updateDataStaging( dataOld,
dataNew.getFileName(),
dataNew.getSource() );
DataStageInTable.this.tableViewer.refresh();
} else {
MessageDialog.openError( DataStageInTable.this.mainComp.getShell(),
Messages.getString( "DataStageInTable.edit_dialog_title" ), //$NON-NLS-1$
Messages.getString( "DataStageInTable.value_exists_dialog_message" ) ); //$NON-NLS-1$
}
}
break;
case 1:
dataNew = getNewDataStagingType( ( String )value,
dataOld.getSource().getURI() );
if( !dataNew.getFileName().equals( dataOld.getFileName() )
|| !dataNew.getSource().getURI().equals( dataOld.getSource()
.getURI() ) )
{
if( !isDataInInput( dataNew ) ) {
// DataStageInTable.this.input.add( dataNew );
// DataStageInTable.this.input.remove( dataOld );
updateDataStaging( dataOld,
dataNew.getFileName(),
dataNew.getSource() );
DataStageInTable.this.tableViewer.refresh();
} else {
MessageDialog.openError( DataStageInTable.this.mainComp.getShell(),
Messages.getString( "DataStageInTable.edit_dialog_title" ), //$NON-NLS-1$
Messages.getString( "DataStageInTable.value_exists_dialog_message" ) ); //$NON-NLS-1$
}
}
break;
}
}
} );
CellEditor[] edTable = new CellEditor[]{
editor, new TextCellEditor( this.tableViewer.getTable() )
};
this.tableViewer.setCellEditors( edTable );
TableViewerEditor.create( this.tableViewer,
new ColumnViewerEditorActivationStrategy( this.tableViewer ),
ColumnViewerEditor.TABBING_HORIZONTAL
| ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
| ColumnViewerEditor.TABBING_VERTICAL );
updateButtons();
}
DataStagingType getSelectedObject() {
DataStagingType result = null;
IStructuredSelection selection = ( IStructuredSelection )this.tableViewer.getSelection();
Object obj = selection.getFirstElement();
if( obj instanceof DataStagingType ) {
result = ( DataStagingType )obj;
}
return result;
}
/**
* Returns data kept in table
*
* @return list of {@link DataStagingType} objects
*/
public List<DataStagingType> getDataStagingType() {
return this.input;
}
/**
* @param input
*/
public void setInput( final List<DataStagingType> input ) {
this.input = input;
if( this.input == null ) {
this.input = new ArrayList<DataStagingType>();
}
this.tableViewer.setInput( this.input );
}
void editDataStagingEntry( final DataStagingType selectedObject ) {
DataStagingInDialog dialog;
if( selectedObject == null ) {
dialog = new DataStagingInDialog( this.mainComp.getShell(),
DataStagingInDialog.SIMPLE_DIALOG );
if( dialog.open() == Window.OK ) {
for( DataStagingType newData : getNewDataStagingType( dialog.getDataStageInList() ) )
{
if( !isDataInInput( newData ) ) {
this.input.add( newData );
this.tableViewer.refresh();
} else {
MessageDialog.openError( this.mainComp.getShell(),
Messages.getString( "DataStageInTable.value_exists_dialog_title" ), //$NON-NLS-1$
Messages.getString( "DataStagingPage_New_DuplicateEntryDialog_Message" ) ); //$NON-NLS-1$
}
}
}
} else {
dialog = new DataStagingInDialog( this.mainComp.getShell(),
DataStagingInDialog.SIMPLE_DIALOG,
selectedObject );
if( dialog.open() == Window.OK ) {
for( DataStagingType newData : getNewDataStagingType( dialog.getDataStageInList() ) )
{
// DataStagingType newData = selectedObject;
// newData.setFileName( dialog.getName() );
// SourceTargetType source = JSDLModelFacade.getSourceTargetType();
// source.setURI( dialog.getPath() );
// newData.setSource( source );
if( !newData.getFileName().equals( selectedObject.getFileName() )
|| !newData.getSource()
.getURI()
.equals( selectedObject.getSource().getURI() ) )
{
if( !isDataInInput( newData ) ) {
// this.input.add( getNewDataStagingType( dialog.getName(),
// dialog.getPath() ) );
// this.input.remove( selectedObject );
// this.input.add( getNewDataStagingType( dialog.getName(),
// dialog.getPath() ) );
// this.input.remove( selectedObject );
updateDataStaging( selectedObject,
newData.getFileName(),
newData.getSource() );
this.tableViewer.refresh();
} else {
MessageDialog.openError( this.mainComp.getShell(),
Messages.getString( "DataStageInTable.edit_dialog_title" ), //$NON-NLS-1$
Messages.getString( "DataStageInTable.value_exists_dialog_message" ) ); //$NON-NLS-1$
}
}
}
}
}
}
void updateDataStaging( final DataStagingType selectedObject,
final String name,
final SourceTargetType source )
{
selectedObject.setFileName( name );
selectedObject.getSource().setURI( source.getURI() );
}
boolean isDataInInput( final DataStagingType newData ) {
boolean result = false;
for( DataStagingType data : this.input ) {
if( data.getFileName().equals( newData.getFileName() )
&& data.getSource().getURI().equals( newData.getSource().getURI() ) )
{
result = true;
}
}
return result;
}
List<DataStagingType> getNewDataStagingType( final ArrayList<DataStagingType> dataStageList )
{
List<DataStagingType> result = new ArrayList<DataStagingType>();
SourceTargetType source = null;
DataStagingType dsType = null;
for( int i = 0; i < dataStageList.size(); i++ ) {
dsType = JSDLModelFacade.getDataStagingType();
source = JSDLModelFacade.getSourceTargetType();
DataStagingType temp = dataStageList.get( i );
dsType.setFileName( temp.getFileName() );
source.setURI( temp.getSource().getURI() );
dsType.setSource( source );
// if (!result.isSetCreationFlag()){
dsType.setCreationFlag( JSDLModelFacade.getDefaultCreationFlag() );
// }
// if (!result.isDeleteOnTermination()){
dsType.setDeleteOnTermination( true );
// }
result.add( dsType );
}
return result;
}
DataStagingType getNewDataStagingType( final String name, final String path )
{
DataStagingType result = JSDLModelFacade.getDataStagingType();
result.setFileName( name );
SourceTargetType source = JSDLModelFacade.getSourceTargetType();
source.setURI( path );
result.setSource( source );
return result;
}
protected void updateButtons() {
ISelection selection = this.tableViewer.getSelection();
boolean selectionAvailable = !selection.isEmpty();
this.addButton.setEnabled( true );
this.removeButton.setEnabled( selectionAvailable );
this.editButton.setEnabled( selectionAvailable );
}
class DataStageInContentProvider implements IStructuredContentProvider {
@SuppressWarnings("unchecked")
public Object[] getElements( final Object inputElement ) {
DataStagingType[] elements = new DataStagingType[ 0 ];
elements = ( DataStagingType[] )( ( List )inputElement ).toArray( new DataStagingType[ 0 ] );
return elements;
}
public void dispose() {
// do nothing
}
public void inputChanged( final Viewer viewer,
final Object oldInput,
final Object newInput )
{
// do nothing
}
}
/**
* Updates the table input
*
* @param newInput new object that will be used as an input
*/
public void updateInput( final List<DataStagingType> newInput ) {
this.input = newInput;
this.tableViewer.setInput( this.input );
}
class DataStageInContentLabelProvider extends LabelProvider
implements ITableLabelProvider
{
public Image getColumnImage( final Object element, final int columnIndex ) {
return null;
}
public String getColumnText( final Object element, final int columnIndex ) {
String result = null;
if( element != null ) {
DataStagingType var = ( DataStagingType )element;
switch( columnIndex ) {
case 0: // source location
result = var.getSource().getURI();
break;
case 1: // name
result = var.getFileName();
break;
}
}
return result;
}
}
}