mirror of
https://github.com/Alfresco/alfresco-community-repo.git
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git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@18926 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
88 lines
2.8 KiB
Java
88 lines
2.8 KiB
Java
/*
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* Copyright (C) 2005-2010 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.alfresco.repo.management;
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import java.util.LinkedList;
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import java.util.List;
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import org.springframework.extensions.surf.util.AbstractLifecycleBean;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.ApplicationEvent;
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import org.springframework.context.ApplicationEventPublisher;
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/**
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* An event publisher that is safe to use while the context is in the process of refreshing. It queues up events until
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* the context has refreshed, after which point events are published in real time.
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*
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* @author dward
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*/
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public class SafeEventPublisher extends AbstractLifecycleBean implements ApplicationEventPublisher
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{
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/** Has the application started? */
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private boolean isApplicationStarted;
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/** The queued events. */
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private List<ApplicationEvent> queuedEvents = new LinkedList<ApplicationEvent>();
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/*
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* (non-Javadoc)
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* @see org.springframework.extensions.surf.util.AbstractLifecycleBean#onBootstrap(org.springframework.context.ApplicationEvent)
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*/
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@Override
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protected void onBootstrap(ApplicationEvent event)
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{
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this.isApplicationStarted = true;
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for (ApplicationEvent queuedEvent : this.queuedEvents)
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{
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publishEvent(queuedEvent);
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}
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this.queuedEvents.clear();
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}
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/*
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* (non-Javadoc)
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* @see org.springframework.extensions.surf.util.AbstractLifecycleBean#onShutdown(org.springframework.context.ApplicationEvent)
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*/
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@Override
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protected void onShutdown(ApplicationEvent event)
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{
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this.isApplicationStarted = false;
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}
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/*
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* (non-Javadoc)
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* @see
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* org.springframework.context.ApplicationEventPublisher#publishEvent(org.springframework.context.ApplicationEvent)
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*/
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public void publishEvent(ApplicationEvent event)
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{
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ApplicationContext context = getApplicationContext();
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if (this.isApplicationStarted)
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{
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context.publishEvent(event);
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}
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else
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{
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this.queuedEvents.add(event);
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}
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}
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}
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