com.pi4j.concurrent.ShutdownDisabledExecutorWrapper Maven / Gradle / Ivy

package com.pi4j.concurrent;

/*
 * #%L
 * **********************************************************************
ORGANIZATION  :  Pi4J
PROJECT       :  Pi4J :: Java Library (Core)
FILENAME      :  ShutdownDisabledExecutorWrapper.java

This file is part of the Pi4J project. More information about
this project can be found here:  http://www.pi4j.com/
**********************************************************************
 * %%
 * Copyright (C) 2012 - 2018 Pi4J
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * 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 General Lesser Public License for more details.
 *
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */

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

/**
 * Wrap an executor service but disable the shutdown method
 */
public class ShutdownDisabledExecutorWrapper implements ExecutorService {
    private ExecutorService executorService;

    public ShutdownDisabledExecutorWrapper(ExecutorService executorService) {
        this.executorService = executorService;
    }

    @Override
    public void shutdown() {
        throw new UnsupportedOperationException("This scheduled executor service can only be shutdown by Pi4J.");
    }

    @Override
    public List shutdownNow() {
        throw new UnsupportedOperationException("This scheduled executor service can only be shutdown by Pi4J.");
    }

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

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

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

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

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

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

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

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

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

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

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