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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 io.microsphere.concurrent;

import java.util.Collection;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

/**
 * Delegating {@link ScheduledExecutorService}
 *
 * @author Mercy
 * @see ScheduledExecutorService
 * @since 1.0.0
 */
public class DelegatingScheduledExecutorService implements ScheduledExecutorService {

    private volatile ScheduledExecutorService delegate;

    public DelegatingScheduledExecutorService(ScheduledExecutorService delegate) {
        this.delegate = delegate;
    }

    public void setDelegate(ScheduledExecutorService delegate) {
        this.delegate = delegate;
    }

    public ScheduledExecutorService getDelegate() {
        return delegate;
    }

    @Override
    public ScheduledFuture schedule(Runnable command, long delay, TimeUnit unit) {
        return getDelegate().schedule(command, delay, unit);
    }

    @Override
    public  ScheduledFuture schedule(Callable callable, long delay, TimeUnit unit) {
        return getDelegate().schedule(callable, delay, unit);
    }

    @Override
    public ScheduledFuture scheduleAtFixedRate(Runnable command, long initialDelay, long period, TimeUnit unit) {
        return getDelegate().scheduleAtFixedRate(command, initialDelay, period, unit);
    }

    @Override
    public ScheduledFuture scheduleWithFixedDelay(Runnable command, long initialDelay, long delay, TimeUnit unit) {
        return getDelegate().scheduleWithFixedDelay(command, initialDelay, delay, unit);
    }

    @Override
    public void shutdown() {
        getDelegate().shutdown();
    }

    @Override
    public List shutdownNow() {
        return getDelegate().shutdownNow();
    }

    @Override
    public boolean isShutdown() {
        return getDelegate().isShutdown();
    }

    @Override
    public boolean isTerminated() {
        return getDelegate().isTerminated();
    }

    @Override
    public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException {
        return getDelegate().awaitTermination(timeout, unit);
    }

    @Override
    public  Future submit(Callable task) {
        return getDelegate().submit(task);
    }

    @Override
    public  Future submit(Runnable task, T result) {
        return getDelegate().submit(task, result);
    }

    @Override
    public Future submit(Runnable task) {
        return getDelegate().submit(task);
    }

    @Override
    public  List> invokeAll(Collection> tasks) throws InterruptedException {
        return getDelegate().invokeAll(tasks);
    }

    @Override
    public  List> invokeAll(Collection> tasks, long timeout, TimeUnit unit) throws InterruptedException {
        return getDelegate().invokeAll(tasks, timeout, unit);
    }

    @Override
    public  T invokeAny(Collection> tasks) throws InterruptedException, ExecutionException {
        return getDelegate().invokeAny(tasks);
    }

    @Override
    public  T invokeAny(Collection> tasks, long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
        return getDelegate().invokeAny(tasks, timeout, unit);
    }

    @Override
    public void execute(Runnable command) {
        getDelegate().execute(command);
    }
}
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