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*
* Pentaho Data Integration
*
* Copyright (C) 2002-2013 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.
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package org.pentaho.di.ui.core.dialog;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.reflect.InvocationTargetException;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
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.graphics.Color;
import org.eclipse.swt.graphics.Font;
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.Dialog;
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.Text;
import org.pentaho.di.core.Const;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.i18n.BaseMessages;
import org.pentaho.di.ui.core.PropsUI;
import org.pentaho.di.ui.core.gui.GUIResource;
import org.pentaho.di.ui.core.gui.WindowProperty;
import org.pentaho.di.ui.trans.step.BaseStepDialog;
/**
* Dialog to display an error generated by a Kettle Exception.
*
* @author Matt
* @since 19-06-2003
*/
public class ErrorDialog extends Dialog {
private static Class<?> PKG = ErrorDialog.class; // for i18n purposes, needed by Translator2!!
private Label wlDesc;
private Text wDesc;
private FormData fdlDesc, fdDesc;
private Button wOK, wDetails, wCancel;
private Shell shell;
private SelectionAdapter lsDef;
private PropsUI props;
private boolean cancelled;
// private LogChannelInterface log;
public ErrorDialog( Shell parent, String title, String message, Throwable throwable ) {
super( parent, SWT.NONE );
throwable.printStackTrace();
// this.log = new LogChannel("ErrorDialog");
// log.logError(message, throwable);
if ( throwable instanceof Exception ) {
showErrorDialog( parent, title, message, (Exception) throwable, false );
} else {
// not optimal, but better then nothing
showErrorDialog( parent, title, message + Const.CR + Const.getStackTracker( throwable ), null, false );
}
}
public ErrorDialog( Shell parent, String title, String message, Exception exception ) {
super( parent, SWT.NONE );
showErrorDialog( parent, title, message, exception, false );
}
public ErrorDialog( Shell parent, String title, String message, Exception exception, boolean showCancelButton ) {
super( parent, SWT.NONE );
showErrorDialog( parent, title, message, exception, showCancelButton );
}
private void showErrorDialog( Shell parent, String title, String message, Exception exception,
boolean showCancelButton ) {
if ( parent.isDisposed() ) {
exception.printStackTrace();
return;
}
this.props = PropsUI.getInstance();
Display display = parent.getDisplay();
final Font largeFont = GUIResource.getInstance().getFontBold();
final Color gray = GUIResource.getInstance().getColorDemoGray();
shell =
new Shell( parent, SWT.DIALOG_TRIM | SWT.RESIZE | SWT.MAX | SWT.MIN | SWT.APPLICATION_MODAL | SWT.SHEET );
props.setLook( shell );
shell.setImage( GUIResource.getInstance().getImageShowErrorLines() );
FormLayout formLayout = new FormLayout();
formLayout.marginWidth = Const.FORM_MARGIN;
formLayout.marginHeight = Const.FORM_MARGIN;
shell.setLayout( formLayout );
shell.setText( title );
int margin = Const.MARGIN;
// From step line
wlDesc = new Label( shell, SWT.NONE );
wlDesc.setText( message );
props.setLook( wlDesc );
fdlDesc = new FormData();
fdlDesc.left = new FormAttachment( 0, 0 );
fdlDesc.top = new FormAttachment( 0, margin );
wlDesc.setLayoutData( fdlDesc );
wlDesc.setFont( largeFont );
wDesc = new Text( shell, SWT.MULTI | SWT.LEFT | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL );
final StringBuilder text = new StringBuilder();
final StringBuilder details = new StringBuilder();
if ( exception != null ) {
if ( exception instanceof KettleException ) {
// Normal error
KettleException ke = (KettleException) exception;
Throwable cause = ke.getCause();
if ( cause != null ) {
text.append( ke.getCause().getMessage() );
} else {
text.append( ke.getMessage() );
}
} else if ( exception instanceof InvocationTargetException ) {
// Error from somewhere else, what is the cause?
Throwable cause = exception.getCause();
if ( cause instanceof KettleException ) {
KettleException ke = (KettleException) cause;
text.append( ke.getMessage() );
} else {
text.append( Const.NVL( cause.getMessage(), cause.toString() ) );
while ( text.length() == 0 && cause != null ) {
cause = cause.getCause();
if ( cause != null ) {
text.append( Const.NVL( cause.getMessage(), cause.toString() ) );
}
}
}
} else {
// Error from somewhere else...
if ( exception.getMessage() == null ) {
text.append( message );
} else {
text.append( exception.getMessage() );
}
}
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter( sw );
exception.printStackTrace( pw );
details.append( sw.getBuffer() );
wDesc.setText( text.toString() );
} else {
text.append( message );
wDesc.setText( text.toString() );
}
wDesc.setBackground( gray );
fdDesc = new FormData();
fdDesc.left = new FormAttachment( 0, 0 );
fdDesc.top = new FormAttachment( wlDesc, margin );
fdDesc.right = new FormAttachment( 100, 0 );
fdDesc.bottom = new FormAttachment( 100, -50 );
wDesc.setLayoutData( fdDesc );
wDesc.setEditable( false );
wOK = new Button( shell, SWT.PUSH );
wOK.setText( BaseMessages.getString( PKG, "System.Button.OK" ) );
if ( showCancelButton ) {
wCancel = new Button( shell, SWT.PUSH );
wCancel.setText( BaseMessages.getString( PKG, "System.Button.Cancel" ) );
}
wDetails = new Button( shell, SWT.PUSH );
wDetails.setText( BaseMessages.getString( PKG, "System.Button.Details" ) );
Button[] buttons;
if ( showCancelButton ) {
buttons = new Button[] { wOK, wCancel, wDetails, };
} else {
buttons = new Button[] { wOK, wDetails, };
}
BaseStepDialog.positionBottomButtons( shell, buttons, margin, null );
// Add listeners
wOK.addListener( SWT.Selection, new Listener() {
public void handleEvent( Event e ) {
ok();
}
} );
if ( showCancelButton ) {
wCancel.addListener( SWT.Selection, new Listener() {
public void handleEvent( Event e ) {
cancel();
}
} );
}
wDetails.addListener( SWT.Selection, new Listener() {
public void handleEvent( Event e ) {
showDetails( details.toString() );
}
} );
lsDef = new SelectionAdapter() {
public void widgetDefaultSelected( SelectionEvent e ) {
ok();
}
};
wDesc.addSelectionListener( lsDef );
// Detect [X] or ALT-F4 or something that kills this window...
shell.addShellListener( new ShellAdapter() {
public void shellClosed( ShellEvent e ) {
ok();
}
} );
// Clean up used resources!
shell.addDisposeListener( new DisposeListener() {
public void widgetDisposed( DisposeEvent arg0 ) {
}
} );
BaseStepDialog.setSize( shell );
// Set the focus on the "OK" button
wOK.setFocus();
shell.open();
while ( !shell.isDisposed() ) {
if ( !display.readAndDispatch() ) {
display.sleep();
}
}
}
protected void showDetails( String details ) {
EnterTextDialog dialog =
new EnterTextDialog( shell, BaseMessages.getString( PKG, "ErrorDialog.ShowDetails.Title" ), BaseMessages
.getString( PKG, "ErrorDialog.ShowDetails.Message" ), details );
dialog.setReadOnly();
dialog.open();
}
public void dispose() {
props.setScreen( new WindowProperty( shell ) );
shell.dispose();
}
private void ok() {
dispose();
}
private void cancel() {
cancelled = true;
dispose();
}
public boolean isCancelled() {
return cancelled;
}
}