ThrottledDelayer.java

/*******************************************************************************
 * Copyright (c) 2012-2017 Codenvy, S.A.
 * 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:
 *   Codenvy, S.A. - initial API and implementation
 *******************************************************************************/
package org.eclipse.che.api.promises.async;

import org.eclipse.che.api.promises.client.Promise;

/**
 * Combine the two strategies from {@link Delayer} and {@link Throttler} helpers
 *
 * @author Evgen Vidolob
 */
@SuppressWarnings("unchecked")
public class ThrottledDelayer<T> extends Delayer<Promise<T>> {

    private final Throttler throttler;

    public ThrottledDelayer(int defaultDelay) {
        super(defaultDelay);
        throttler = new Throttler();
    }


    @Override
    public Promise trigger(final Task<Promise<T>> task) {
        return super.trigger(new Task<Promise<T>>() {
            @Override
            public Promise<T> run() {
                return throttler.queue(task);
            }
        });
    }

}