FakeFuture.java

/**
 * Copyright (c) 2008-2011 Sonatype, Inc.
 * All rights reserved. Includes the third-party code listed at http://www.sonatype.com/products/nexus/attributions.
 *
 * This program is free software: you can redistribute it and/or modify it only under the terms of the GNU Affero General
 * Public License Version 3 as published by the Free Software Foundation.
 *
 * This program 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 Affero General Public License Version 3
 * for more details.
 *
 * You should have received a copy of the GNU Affero General Public License Version 3 along with this program.  If not, see
 * http://www.gnu.org/licenses.
 *
 * Sonatype Nexus (TM) Open Source Version is available from Sonatype, Inc. Sonatype and Sonatype Nexus are trademarks of
 * Sonatype, Inc. Apache Maven is a trademark of the Apache Foundation. M2Eclipse is a trademark of the Eclipse Foundation.
 * All other trademarks are the property of their respective owners.
 */
package org.sonatype.nexus.proxy.statistics.impl;

import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

/**
 * Just a "fake" future to be able to sneak in fixed values.
 * 
 * @author cstamas
 * @param <T>
 */
public class FakeFuture<T>
    implements Future<T>
{
    private final T value;

    public FakeFuture( final T value )
    {
        this.value = value;
    }

    public boolean cancel( boolean mayInterruptIfRunning )
    {
        return false;
    }

    public boolean isCancelled()
    {
        return false;
    }

    public boolean isDone()
    {
        return true;
    }

    public T get()
        throws InterruptedException, ExecutionException
    {
        return value;
    }

    public T get( long timeout, TimeUnit unit )
        throws InterruptedException, ExecutionException, TimeoutException
    {
        return get();
    }
}