Dave Ward 1a481a63c2 Merged BRANCHES/DEV/DAVEW/SPRING3 to HEAD
15422: Fix deploy-virtual-tomcat macro for Spring 3
   15391: Fix ContentStoreReplicatorTest for Spring 3
   15390: Upgrade CXF to version 2.2.2 for Spring 3 compatibility
   15385: Correction to previous checkin
   15384: Fix ClassPathStore.createRelative() to work with Spring 3
      - Relative resource path resolution with directory resources has changed
   15346: Merged V3.3_SPRING3 to SPRING3
      15310: Spring 3: Change to the way that FileContentStore broadcasts its existence to interested parties (for enterprise-only monitoring)
         - Introduced new SafeEventPublisher singleton that queues up events until after the application context has finished refreshing
      15309: Use AUTODETECT_NONE auto detect mode for JMX exporters to be compatible with Spring 3
      15308: Fix IBATIS integration to be compatible with Spring 3
      15307: Added missing runtime dependencies
         - org.springframework.expression-3.0.0.RC2.jar
         - org.springframework.asm-3.0.0.RC2.jar
      15289: Move Alfresco stack to Spring 3
         - Stage 1: get it compiling in eclipse and update ant scripts
         - Still requires Web Framework contributions from Uzi


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@17624 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
2009-11-23 20:20:06 +00:00

94 lines
3.2 KiB
Java

/*
* Copyright (C) 2005-2009 Alfresco Software Limited.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* As a special exception to the terms and conditions of version 2.0 of
* the GPL, you may redistribute this Program in connection with Free/Libre
* and Open Source Software ("FLOSS") applications as described in Alfresco's
* FLOSS exception. You should have received a copy of the text describing
* the FLOSS exception, and it is also available here:
* http://www.alfresco.com/legal/licensing"
*/
package org.alfresco.repo.management;
import java.util.LinkedList;
import java.util.List;
import org.alfresco.util.AbstractLifecycleBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationEventPublisher;
/**
* An event publisher that is safe to use while the context is in the process of refreshing. It queues up events until
* the context has refreshed, after which point events are published in real time.
*
* @author dward
*/
public class SafeEventPublisher extends AbstractLifecycleBean implements ApplicationEventPublisher
{
/** Has the application started? */
private boolean isApplicationStarted;
/** The queued events. */
private List<ApplicationEvent> queuedEvents = new LinkedList<ApplicationEvent>();
/*
* (non-Javadoc)
* @see org.alfresco.util.AbstractLifecycleBean#onBootstrap(org.springframework.context.ApplicationEvent)
*/
@Override
protected void onBootstrap(ApplicationEvent event)
{
this.isApplicationStarted = true;
for (ApplicationEvent queuedEvent : this.queuedEvents)
{
publishEvent(queuedEvent);
}
this.queuedEvents.clear();
}
/*
* (non-Javadoc)
* @see org.alfresco.util.AbstractLifecycleBean#onShutdown(org.springframework.context.ApplicationEvent)
*/
@Override
protected void onShutdown(ApplicationEvent event)
{
this.isApplicationStarted = false;
}
/*
* (non-Javadoc)
* @see
* org.springframework.context.ApplicationEventPublisher#publishEvent(org.springframework.context.ApplicationEvent)
*/
public void publishEvent(ApplicationEvent event)
{
ApplicationContext context = getApplicationContext();
if (this.isApplicationStarted)
{
context.publishEvent(event);
}
else
{
this.queuedEvents.add(event);
}
}
}