/*
 * Copyright (c) 2013, 2017 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package org.glassfish.grizzly;

Interface to notify interested parties that a Transport is being shutdown. Keep in mind that there is no guarantee that all listeners will be invoked before the transport is terminated (e.g., timed graceful shutdown or a graceful shutdown() that was initiated and then shutdownNow() is later invoked. 
Since:
2.3.5./**
 * Interface to notify interested parties that a {@link Transport} is being
 * shutdown.
 *
 * Keep in mind that there is no guarantee that all listeners will be invoked
 * before the transport is terminated (e.g., timed graceful shutdown or a graceful
 * shutdown() that was initiated and then shutdownNow() is later invoked.
 *
 * @since 2.3.5.
 */
public interface GracefulShutdownListener {

    
Invoked when an attempt is made to shutdown the transport gracefully.
Params:
shutdownContext – the ShutdownContext for this shutdown request./**
     * Invoked when an attempt is made to shutdown the transport gracefully.
     *
     * @param shutdownContext the {@link ShutdownContext} for this shutdown
     *                        request.
     */
    void shutdownRequested(final ShutdownContext shutdownContext);

    
Invoked when the transport is being shutdown forcefully.  This means
either shutdownNow() was invoked or the graceful shutdown timed out.
It's important that the implementation of this method not block.
/**
     * Invoked when the transport is being shutdown forcefully.  This means
     * either shutdownNow() was invoked or the graceful shutdown timed out.
     * It's important that the implementation of this method not block.
     */
    void shutdownForced();

}