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/*
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2007-2008 Sun Microsystems, Inc. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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package org.atmosphere.util.gae;


import org.atmosphere.cpr.BroadcastFilter;
import org.atmosphere.cpr.BroadcastFilterLifecycle;
import org.atmosphere.cpr.BroadcasterConfig;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.ScheduledExecutorService;

/**
 * Special {@link BroadcasterConfig} that doesn't support {@link ExecutorService}
 *
 * @author Jeanfrancois Arcand
 */
public class GAEBroadcasterConfig extends BroadcasterConfig {

    final static String NOT_SUPPORTED = "ExecutorService not supported with Google App Engine";

    public GAEBroadcasterConfig() {
    }

    @Override
    protected void configExecutors() {
    }

    @Override
    public void destroy() {
        for (BroadcastFilter f : filters) {
            if (f instanceof BroadcastFilterLifecycle) {
                ((BroadcastFilterLifecycle) f).destroy();
            }
        }
    }

    /**
     * Throw {@link UnsupportedOperationException} since GAE doesn't support
     * {@link ExecutorService}
     */
    @Override
    public GAEBroadcasterConfig setExecutorService(ExecutorService executorService) {
        throw new UnsupportedOperationException(NOT_SUPPORTED);
    }

    /**
     * Throw {@link UnsupportedOperationException} since GAE doesn't support
     * {@link ExecutorService}
     */
    @Override
    public ExecutorService getExecutorService() {
        throw new UnsupportedOperationException(NOT_SUPPORTED);
    }


    /**
     * Throw {@link UnsupportedOperationException} since GAE doesn't support
     * {@link ExecutorService}
     */
    @Override
    public ExecutorService getDefaultExecutorService() {
        throw new UnsupportedOperationException(NOT_SUPPORTED);
    }

    /**
     * Throw {@link UnsupportedOperationException} since GAE doesn't support
     * {@link ExecutorService}
     */
    @Override
    public GAEBroadcasterConfig setScheduledExecutorService(ScheduledExecutorService executorService) {
        throw new UnsupportedOperationException(NOT_SUPPORTED);
    }

    /**
     * Throw {@link UnsupportedOperationException} since GAE doesn't support
     * {@link ExecutorService}
     */
    @Override
    public ScheduledExecutorService getScheduledExecutorService() {
        throw new UnsupportedOperationException(NOT_SUPPORTED);
    }
}