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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* 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
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.ui.plugin.util;
import java.util.logging.Level;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.osee.framework.logging.OseeLog;
import org.eclipse.osee.framework.ui.plugin.internal.OseePluginUiActivator;
import org.eclipse.osee.framework.ui.swt.Displays;
import org.eclipse.osee.framework.ui.swt.IContentProviderRunnable;
/**
* @author Robert A. Fisher
*/
public class GetChildrenJob extends Job {
private final Viewer viewer;
private final JobbedNode parent;
private final IContentProviderRunnable runnable;
/**
* @param name
* @param viewer
* @param parent
* @param runnable
*/
public GetChildrenJob(String name, Viewer viewer, JobbedNode parent, IContentProviderRunnable runnable) {
super("Fetching children" + (name == null ? "" : " for " + name));
if (viewer == null) throw new IllegalArgumentException("view can not be null");
if (parent == null) throw new IllegalArgumentException("parent can not be null.");
if (runnable == null) throw new IllegalArgumentException("runnable can not be null.");
this.viewer = viewer;
this.parent = parent;
this.runnable = runnable;
}
@Override
protected final IStatus run(IProgressMonitor monitor) {
CancelWatcher watcher = new CancelWatcher(getThread(), monitor);
watcher.start();
try {
Object[] children = runnable.run(parent.getBackingData());
if (!monitor.isCanceled()) {
parent.setChildren(children);
Displays.ensureInDisplayThread(new Runnable() {
public void run() {
viewer.refresh();
}
});
} else {
parent.cancelled();
}
} catch (Exception ex) {
OseeLog.log(OseePluginUiActivator.class, Level.SEVERE, ex);
parent.cancelled(ex);
} finally {
watcher.done();
monitor.done();
}
return Status.OK_STATUS;
}
}
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