| /******************************************************************************* |
| * Copyright (c) 2015 Tasktop Technologies. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * https://www.eclipse.org/legal/epl-2.0 |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Tasktop Technologies - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.tasks.ui.migrator; |
| |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.eclipse.core.runtime.jobs.IJobChangeEvent; |
| import org.eclipse.core.runtime.jobs.Job; |
| import org.eclipse.core.runtime.jobs.JobChangeAdapter; |
| |
| public class JobListener { |
| |
| private final Set<Job> jobs = Collections.synchronizedSet(new HashSet<Job>()); |
| |
| private final Runnable allJobsDone; |
| |
| private boolean started; |
| |
| private boolean complete; |
| |
| public JobListener(Runnable allJobsDone) { |
| this.allJobsDone = allJobsDone; |
| } |
| |
| /** |
| * Must be called once when all jobs have been added. |
| */ |
| public void start() { |
| synchronized (jobs) { |
| started = true; |
| if (jobs.isEmpty()) { |
| allJobsDone.run(); |
| complete = true; |
| } |
| } |
| } |
| |
| public boolean isComplete() { |
| return complete; |
| } |
| |
| /** |
| * This method should only be called from a single thread. |
| */ |
| public void add(final Job job, final Runnable jobDone) { |
| jobs.add(job); |
| job.addJobChangeListener(new JobChangeAdapter() { |
| @Override |
| public void done(IJobChangeEvent event) { |
| jobDone.run(); |
| synchronized (jobs) { |
| jobs.remove(job); |
| if (jobs.isEmpty() && started) { |
| allJobsDone.run(); |
| complete = true; |
| } |
| } |
| } |
| }); |
| } |
| |
| } |