Dave Hoover
b04e27f8fa
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@5917 542714f4-19e9-0310-aa3c-eee0fc999fb1
96 lines
2.8 KiB
Java
96 lines
2.8 KiB
Java
//
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// $Id$
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//
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// Narya library - tools for developing networked games
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// Copyright (C) 2002-2009 Three Rings Design, Inc., All Rights Reserved
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// http://www.threerings.net/code/narya/
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package com.threerings.presents.server;
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import com.google.inject.Inject;
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import com.google.inject.Singleton;
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import com.samskivert.util.Lifecycle;
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/**
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* Handles the orderly shutdown of all server services.
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*
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* @Deprecated use Lifecycle
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*/
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@Singleton
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public class ShutdownManager
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{
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/** Implementers of this interface will be notified when the server is shutting down. */
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public static interface Shutdowner extends Lifecycle.ShutdownComponent
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{
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}
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/** Constraints for use with {@link ShutdownManager#addConstraint}. */
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public static enum Constraint { RUNS_BEFORE, RUNS_AFTER }
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/**
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* Registers an entity that will be notified when the server is shutting down.
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*/
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public void registerShutdowner (Shutdowner downer)
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{
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_cycle.addComponent(downer);
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}
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/**
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* Unregisters the shutdowner from hearing when the server is shutdown.
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*/
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public void unregisterShutdowner (Shutdowner downer)
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{
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_cycle.removeComponent(downer);
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}
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/**
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* Adds a constraint that a certain shutdowner must be run before another.
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*/
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public void addConstraint (Shutdowner lhs, Constraint constraint, Shutdowner rhs)
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{
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switch (constraint) {
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case RUNS_BEFORE:
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_cycle.addShutdownConstraint(lhs, Lifecycle.Constraint.RUNS_BEFORE, rhs);
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break;
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case RUNS_AFTER:
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_cycle.addShutdownConstraint(lhs, Lifecycle.Constraint.RUNS_AFTER, rhs);
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break;
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}
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}
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/**
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* Queues up a request to shutdown on the dobjmgr thread. This method may be safely called from
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* any thread.
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*/
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public void queueShutdown ()
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{
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_server.queueShutdown();
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}
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/**
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* Returns true if we're in the process of shutting down.
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*/
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public boolean isShuttingDown ()
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{
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return _cycle.isShuttingDown();
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}
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@Inject protected Lifecycle _cycle;
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@Inject protected PresentsServer _server;
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}
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