+++ /dev/null
-/*
- * Copyright (C) 2007-2012 Argeo GmbH
- *
- * 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.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.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.argeo.ArgeoException;
-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 Log logThis = LogFactory.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 Log 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 ArgeoException("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;
-// }
-
- display.asyncExec(new Runnable() {
- public void run() {
- try {
- onEventInUiThread(events);
- } catch (RepositoryException e) {
- throw new ArgeoException("Cannot process events "
- + events, e);
- }
- }
- });
-
-// return Status.OK_STATUS;
-// }
-// };
-// job.schedule();
- }
-}