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The Adobe Experience Manager SDK

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.commons.lang3.concurrent;

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

/**
 * Proxies to a {@link Future} for subclassing.
 *
 * @param  The result type returned by this Future's {@link #get()} and {@link #get(long, TimeUnit)} methods.
 * @since 3.13.0
 */
public abstract class AbstractFutureProxy implements Future {

    private final Future future;

    /**
     * Constructs a new instance.
     *
     * @param future the delegate.
     */
    public AbstractFutureProxy(final Future future) {
        this.future = Objects.requireNonNull(future, "future");
    }

    @Override
    public boolean cancel(final boolean mayInterruptIfRunning) {
        return future.cancel(mayInterruptIfRunning);
    }

    @Override
    public V get() throws InterruptedException, ExecutionException {
        return future.get();
    }

    @Override
    public V get(final long timeout, final TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
        return future.get(timeout, unit);
    }

    /**
     * Gets the delegate.
     *
     * @return the delegate.
     */
    public Future getFuture() {
        return future;
    }

    @Override
    public boolean isCancelled() {
        return future.isCancelled();
    }

    @Override
    public boolean isDone() {
        return future.isDone();
    }

}