LaunchTask.java example

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jagger-master
/*
 * Copyright (c) 2010-2012 Grid Dynamics Consulting Services, Inc, All Rights Reserved
 * http://www.griddynamics.com
 *
 * This library is free software; you can redistribute it and/or modify it under the terms of
 * the Apache License; either
 * version 2.0 of the License, or any later version.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.griddynamics.jagger.launch;

import com.google.common.collect.Lists;
import com.griddynamics.jagger.Terminable;

import java.util.List;
import java.util.concurrent.Executor;

public abstract class LaunchTask implements Runnable, Terminable {

    private Executor executor;

    private List<Terminable> toTerminate = Lists.newLinkedList();

    protected Executor getExecutor() {
        if (executor == null) {
            throw new IllegalStateException("Cannot access to executor");
        }
        return executor;
    }

    public void setExecutor(Executor executor) {
        this.executor = executor;
    }

    @Override
    public void terminate() {
        for (Terminable terminable : toTerminate) {
            terminable.terminate();
        }
    }

    protected void toTerminate(Terminable terminable) {
        toTerminate.add(terminable);
    }
}