/*!
* Copyright 2010 - 2015 Pentaho Corporation. All rights reserved.
*
* 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.repository.pur;
import java.util.List;
import org.eclipse.swt.SWT;
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.pentaho.di.core.Const;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.core.variables.Variables;
import org.pentaho.di.core.xml.XMLHandler;
import org.pentaho.di.i18n.BaseMessages;
import org.pentaho.di.repository.ObjectRevision;
import org.pentaho.di.repository.Repository;
import org.pentaho.di.repository.RepositoryElementInterface;
import org.pentaho.di.ui.core.PropsUI;
import org.pentaho.di.ui.core.dialog.ErrorDialog;
import org.pentaho.di.ui.core.dialog.ShowMessageDialog;
import org.pentaho.di.ui.core.gui.GUIResource;
import org.pentaho.di.ui.core.gui.WindowProperty;
import org.pentaho.di.ui.core.widget.ColumnInfo;
import org.pentaho.di.ui.core.widget.TableView;
import org.pentaho.di.ui.repository.dialog.RepositoryRevisionBrowserDialogInterface;
import org.pentaho.di.ui.repository.pur.services.IRevisionService;
import org.pentaho.di.ui.trans.step.BaseStepDialog;
public class PurRepositoryRevisionBrowserDialog implements RepositoryRevisionBrowserDialogInterface,
java.io.Serializable {
private static final long serialVersionUID = -1596062300653831848L; /* EESOURCE: UPDATE SERIALVERUID */
private static Class<?> PKG = PurRepositoryRevisionBrowserDialog.class; // for i18n purposes, needed by Translator2!!
// $NON-NLS-1$
private Label wlFields;
private TableView wFields;
private FormData fdlFields, fdFields;
private Button wOpen, wClose;
private Listener lsOpen, lsClose;
private Display display;
private Shell shell;
private PropsUI props;
protected Repository repository;
private IRevisionService revisionService;
private RepositoryElementInterface element;
private List<ObjectRevision> revisions;
private String elementDescription;
private String selectedRevision;
public PurRepositoryRevisionBrowserDialog( Shell parent, int style, Repository repository,
RepositoryElementInterface element ) {
this.display = parent.getDisplay();
this.props = PropsUI.getInstance();
this.repository = repository;
this.element = element;
try {
if ( repository.hasService( IRevisionService.class ) ) {
revisionService = (IRevisionService) repository.getService( IRevisionService.class );
} else {
throw new IllegalStateException();
}
} catch ( KettleException e ) {
throw new IllegalStateException( e );
}
String name = element.getRepositoryElementType().toString() + " " + element.getRepositoryDirectory().getPath();
if ( !name.endsWith( "/" ) )
name += "/";
name += element.getName();
this.elementDescription = name;
shell = new Shell( display, style | SWT.DIALOG_TRIM | SWT.RESIZE | SWT.MAX | SWT.MIN );
shell.setText( BaseMessages.getString( PKG, "PurRepositoryRevisionBrowserDialog.Dialog.Main.Title" ) ); //$NON-NLS-1$
}
public String open() {
try {
props.setLook( shell );
FormLayout formLayout = new FormLayout();
formLayout.marginWidth = Const.FORM_MARGIN;
formLayout.marginHeight = Const.FORM_MARGIN;
shell.setLayout( formLayout );
shell.setImage( GUIResource.getInstance().getImageVersionBrowser() );
// int middle = props.getMiddlePct();
int margin = Const.MARGIN;
revisions = revisionService.getRevisions( element );
// Mmm, if we don't get any rows in the buffer: show a dialog box.
if ( revisions == null || revisions.size() == 0 ) {
ShowMessageDialog dialog =
new ShowMessageDialog( shell, SWT.OK | SWT.ICON_WARNING, BaseMessages.getString( PKG,
"PurRepositoryRevisionBrowserDialog.NoRevisions.Text" ), BaseMessages.getString( PKG,
"PurRepositoryRevisionBrowserDialog.NoRevisions.Message" ) );
dialog.open();
shell.dispose();
return null;
}
wlFields = new Label( shell, SWT.LEFT );
wlFields.setText( "Revision history of " + elementDescription );
props.setLook( wlFields );
fdlFields = new FormData();
fdlFields.left = new FormAttachment( 0, 0 );
fdlFields.right = new FormAttachment( 100, 0 );
fdlFields.top = new FormAttachment( 0, margin );
wlFields.setLayoutData( fdlFields );
ColumnInfo[] colinf =
new ColumnInfo[] {
new ColumnInfo( BaseMessages.getString( PKG, "PurRepositoryRevisionBrowserDialog.Columns.Revision.Name" ),
ColumnInfo.COLUMN_TYPE_TEXT, false, true ),
new ColumnInfo(
BaseMessages.getString( PKG, "PurRepositoryRevisionBrowserDialog.Columns.Revision.Comment" ),
ColumnInfo.COLUMN_TYPE_TEXT, false, true ),
new ColumnInfo( BaseMessages.getString( PKG, "PurRepositoryRevisionBrowserDialog.Columns.Revision.Date" ),
ColumnInfo.COLUMN_TYPE_TEXT, false, true ),
new ColumnInfo( BaseMessages.getString( PKG, "PurRepositoryRevisionBrowserDialog.Columns.Revision.Login" ),
ColumnInfo.COLUMN_TYPE_TEXT, false, true ), };
wFields =
new TableView( new Variables(), shell, SWT.BORDER | SWT.FULL_SELECTION | SWT.SINGLE, colinf, 0, null, props );
wFields.setReadonly( true );
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 );
wFields.table.addSelectionListener( new SelectionAdapter() {
public void widgetSelected( SelectionEvent event ) {
int index = wFields.getSelectionIndex();
if ( index >= 0 ) {
String[] item = wFields.getItem( index );
if ( item != null && item.length > 0 ) {
selectedRevision = item[0];
}
}
}
public void widgetDefaultSelected( SelectionEvent event ) {
ok();
}
} );
wOpen = new Button( shell, SWT.PUSH );
wOpen.setText( BaseMessages.getString( "System.Button.Open" ) ); //$NON-NLS-1$
lsOpen = new Listener() {
public void handleEvent( Event e ) {
ok();
}
};
wOpen.addListener( SWT.Selection, lsOpen );
wClose = new Button( shell, SWT.PUSH );
wClose.setText( BaseMessages.getString( "System.Button.Close" ) ); //$NON-NLS-1$
lsClose = new Listener() {
public void handleEvent( Event e ) {
cancel();
}
};
wClose.addListener( SWT.Selection, lsClose );
BaseStepDialog.positionBottomButtons( shell, new Button[] { wOpen, wClose }, margin, null );
// Detect X or ALT-F4 or something that kills this window...
shell.addShellListener( new ShellAdapter() {
public void shellClosed( ShellEvent e ) {
cancel();
}
} );
getData();
BaseStepDialog.setSize( shell );
shell.open();
while ( !shell.isDisposed() ) {
if ( !display.readAndDispatch() )
display.sleep();
}
return selectedRevision;
} catch ( Exception e ) {
new ErrorDialog( shell, "Error browsing versions", "There was an error browsing the version history of element "
+ element, e );
return null;
}
}
public void dispose() {
props.setScreen( new WindowProperty( shell ) );
shell.dispose();
}
/**
* Copy information from the meta-data input to the dialog fields.
*/
public void getData() {
wFields.clearAll( false );
for ( ObjectRevision revision : revisions ) {
wFields.add( revision.getName(), revision.getComment(), XMLHandler.date2string( revision.getCreationDate() ),
revision.getLogin() );
}
wFields.removeEmptyRows();
wFields.setRowNums();
wFields.optWidth( true );
}
private void cancel() {
selectedRevision = null;
dispose();
}
private void ok() {
dispose();
}
}