+++ /dev/null
-package org.argeo.eclipse.ui.jcr;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import javax.jcr.RepositoryException;
-import javax.jcr.observation.Event;
-import javax.jcr.observation.EventIterator;
-import javax.jcr.observation.EventListener;
-
-import org.argeo.api.cms.CmsLog;
-import org.argeo.eclipse.ui.EclipseUiException;
-import org.eclipse.swt.widgets.Display;
-
-/**
- * {@link EventListener} which simplifies running actions within the UI thread.
- */
-public abstract class AsyncUiEventListener implements EventListener {
- // private final static Log logSuper = LogFactory
- // .getLog(AsyncUiEventListener.class);
- private final CmsLog logThis = CmsLog.getLog(getClass());
-
- private final Display display;
-
- public AsyncUiEventListener(Display display) {
- super();
- this.display = display;
- }
-
- /** Called asynchronously in the UI thread. */
- protected abstract void onEventInUiThread(List<Event> events) throws RepositoryException;
-
- /**
- * Whether these events should be processed in the UI or skipped with no UI
- * job created.
- */
- protected Boolean willProcessInUiThread(List<Event> events) throws RepositoryException {
- return true;
- }
-
- protected CmsLog getLog() {
- return logThis;
- }
-
- public final void onEvent(final EventIterator eventIterator) {
- final List<Event> events = new ArrayList<Event>();
- while (eventIterator.hasNext())
- events.add(eventIterator.nextEvent());
-
- if (logThis.isTraceEnabled())
- logThis.trace("Received " + events.size() + " events");
-
- try {
- if (!willProcessInUiThread(events))
- return;
- } catch (RepositoryException e) {
- throw new EclipseUiException("Cannot test skip events " + events, e);
- }
-
- // Job job = new Job("JCR Events") {
- // protected IStatus run(IProgressMonitor monitor) {
- // if (display.isDisposed()) {
- // logSuper.warn("Display is disposed cannot update UI");
- // return Status.CANCEL_STATUS;
- // }
-
- if (!display.isDisposed())
- display.asyncExec(new Runnable() {
- public void run() {
- try {
- onEventInUiThread(events);
- } catch (RepositoryException e) {
- throw new EclipseUiException("Cannot process events " + events, e);
- }
- }
- });
-
- // return Status.OK_STATUS;
- // }
- // };
- // job.schedule();
- }
-}