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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 <V> The result type returned by this Future's {@link #get()} and {@link #get(long, TimeUnit)} methods.
* @since 3.13.0
*/
public abstract class AbstractFutureProxy<V> implements Future<V> {
private final Future<V> future;
/**
* Constructs a new instance.
*
* @param future the delegate.
*/
public AbstractFutureProxy(final Future<V> 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<V> getFuture() {
return future;
}
@Override
public boolean isCancelled() {
return future.isCancelled();
}
@Override
public boolean isDone() {
return future.isDone();
}
}
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