/* ********************************************************************** **
** Copyright notice **
** **
** (c) 2005-2009 RSSOwl Development Team **
** http://www.rssowl.org/ **
** **
** 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.rssowl.org/legal/epl-v10.html **
** **
** A copy is found in the file epl-v10.html and important notices to the **
** license from the team is found in the textfile LICENSE.txt distributed **
** in this package. **
** **
** This copyright notice MUST APPEAR in all copies of the file! **
** **
** Contributors: **
** RSSOwl Development Team - initial API and implementation **
** **
** ********************************************************************** */
package org.rssowl.ui.internal;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.statushandlers.StatusAdapter;
import org.eclipse.ui.statushandlers.WorkbenchErrorHandler;
import org.rssowl.core.persist.service.PersistenceException;
import org.rssowl.ui.internal.util.JobRunner;
import java.io.IOException;
/**
* Default status handler in RSSOwl that performs certain special actions when
* certain Exceptions are thrown.
*
* @author bpasero@rssowl.org
*/
public class DefaultStatusHandler extends WorkbenchErrorHandler {
/*
* @see org.eclipse.ui.statushandlers.AbstractStatusHandler#handle(org.eclipse.ui.statushandlers.StatusAdapter, int)
*/
@Override
public void handle(StatusAdapter statusAdapter, int style) {
IStatus status = statusAdapter.getStatus();
/* Specially treat IOExceptions from PersistenceException */
if (status != null) {
Throwable ex = status.getException();
if (ex instanceof PersistenceException)
handlePersistenceException((PersistenceException) ex);
else if (ex instanceof OutOfMemoryError)
handleOutOfMemoryError((OutOfMemoryError) ex);
else if (ex != null) {
Throwable cause = ex.getCause();
if (cause instanceof PersistenceException)
handlePersistenceException((PersistenceException) cause);
else if (ex instanceof OutOfMemoryError)
handleOutOfMemoryError((OutOfMemoryError) cause);
}
}
/* Handle in WorkbenchErrorHandle in any case */
super.handle(statusAdapter, style);
}
private void handlePersistenceException(final PersistenceException ex) {
JobRunner.runInUIThread(null, new Runnable() {
public void run() {
Throwable cause = ex.getCause();
if (cause != null && cause instanceof IOException) {
ErrorDialog.openError(OwlUI.getPrimaryShell(), Messages.DefaultStatusHandler_ERROR, Messages.DefaultStatusHandler_ERROR_DISK_WRITE, Activator.getDefault().createErrorStatus(cause.getMessage(), (Exception) cause));
}
}
});
}
private void emergencyClose() {
ApplicationWorkbenchAdvisor.fgPrimaryApplicationWorkbenchWindowAdvisor.getWindowConfigurer().getWorkbenchConfigurer().emergencyClose();
}
private void handleOutOfMemoryError(final OutOfMemoryError error) {
JobRunner.runInUIThread(null, new Runnable() {
public void run() {
try {
ErrorDialog dialog = new ErrorDialog(OwlUI.getPrimaryShell(), Messages.DefaultStatusHandler_ERROR, Messages.DefaultStatusHandler_ERROR_OUT_OF_MEMORY, Activator.getDefault().createErrorStatus(error.getMessage()), IStatus.OK | IStatus.INFO | IStatus.WARNING | IStatus.ERROR) {
@Override
protected void createButtonsForButtonBar(Composite parent) {
createButton(parent, IDialogConstants.OK_ID, IDialogConstants.YES_LABEL, true);
createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.NO_LABEL, false);
}
};
if (dialog.open() == IDialogConstants.OK_ID)
emergencyClose();
}
/* Serious problem - emergency close */
catch (Error err) {
emergencyClose();
}
}
});
}
}