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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
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 *
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 */

package test.javafx.concurrent;

import javafx.concurrent.Service;
import javafx.concurrent.ServiceShim;
import javafx.concurrent.Task;

/**
 * The Task and Service tests need to do a little trickery due to threading.
 * Although in practice they run on different threads (ie: the UI and
 * background threads), while testing I want to be able to run predictably
 * and quickly on just the test thread. This implementation of
 * Service is used as the base implementation of all Services which are
 * tested. It will simply run the given command immediately, and makes
 * sure the checkThread does nothing.
 */
public abstract class TestServiceFactory {
    public final Thread appThread = Thread.currentThread();
    public ServiceTestBase test;
    public AbstractTask currentTask;

    public abstract AbstractTask createTestTask();
    public Service<String> createService() {
        return new ServiceShim<String>() {
            @Override protected Task<String> createTask() {
                currentTask = createTestTask();
                currentTask.set_test(test);
                currentTask.appThread = appThread;
                return currentTask;
            }

            @Override public boolean isFxApplicationThread() {
                return Thread.currentThread() == appThread;
            }

            @Override public void runLater(Runnable r) {
                if (test != null) {
                    test.eventQueue.add(r);
                } else {
                    r.run();
                }
            }
        };
    }

    public final AbstractTask getCurrentTask() { return currentTask; }
}