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//
// ========================================================================
// Copyright (c) 1995-2012 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.plus.webapp;
import java.util.EventListener;
import javax.servlet.Filter;
import javax.servlet.Servlet;
import javax.servlet.ServletException;
import org.eclipse.jetty.plus.annotation.InjectionCollection;
import org.eclipse.jetty.plus.annotation.LifeCycleCallbackCollection;
import org.eclipse.jetty.plus.annotation.RunAsCollection;
import org.eclipse.jetty.servlet.FilterHolder;
import org.eclipse.jetty.servlet.ServletContextHandler.Decorator;
import org.eclipse.jetty.servlet.ServletHolder;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.eclipse.jetty.webapp.WebAppContext;
/**
* WebAppDecorator
*
*
*/
public class PlusDecorator implements Decorator
{
private static final Logger LOG = Log.getLogger(PlusDecorator.class);
protected WebAppContext _context;
public PlusDecorator (WebAppContext context)
{
_context = context;
}
/* ------------------------------------------------------------ */
/**
* @see org.eclipse.jetty.servlet.ServletContextHandler.Decorator#decorateFilterHolder(org.eclipse.jetty.servlet.FilterHolder)
*/
public void decorateFilterHolder(FilterHolder filter) throws ServletException
{
}
/* ------------------------------------------------------------ */
/**
* @see org.eclipse.jetty.servlet.ServletContextHandler.Decorator#decorateFilterInstance(javax.servlet.Filter)
*/
public <T extends Filter> T decorateFilterInstance(T filter) throws ServletException
{
decorate(filter);
return filter;
}
/* ------------------------------------------------------------ */
/**
* @see org.eclipse.jetty.servlet.ServletContextHandler.Decorator#decorateListenerInstance(java.util.EventListener)
*/
public <T extends EventListener> T decorateListenerInstance(T listener) throws ServletException
{
decorate(listener);
return listener;
}
/* ------------------------------------------------------------ */
/**
* @see org.eclipse.jetty.servlet.ServletContextHandler.Decorator#decorateServletHolder(org.eclipse.jetty.servlet.ServletHolder)
*/
public void decorateServletHolder(ServletHolder holder) throws ServletException
{
decorate(holder);
}
/* ------------------------------------------------------------ */
/**
* @see org.eclipse.jetty.servlet.ServletContextHandler.Decorator#decorateServletInstance(javax.servlet.Servlet)
*/
public <T extends Servlet> T decorateServletInstance(T servlet) throws ServletException
{
decorate(servlet);
return servlet;
}
/* ------------------------------------------------------------ */
/**
* @see org.eclipse.jetty.servlet.ServletContextHandler.Decorator#destroyFilterInstance(javax.servlet.Filter)
*/
public void destroyFilterInstance(Filter f)
{
destroy(f);
}
/* ------------------------------------------------------------ */
/**
* @see org.eclipse.jetty.servlet.ServletContextHandler.Decorator#destroyServletInstance(javax.servlet.Servlet)
*/
public void destroyServletInstance(Servlet s)
{
destroy(s);
}
/**
* @see org.eclipse.jetty.servlet.ServletContextHandler.Decorator#destroyListenerInstance(java.util.EventListener)
*/
public void destroyListenerInstance(EventListener l)
{
destroy(l);
}
protected void decorate (Object o)
throws ServletException
{
RunAsCollection runAses = (RunAsCollection)_context.getAttribute(RunAsCollection.RUNAS_COLLECTION);
if (runAses != null)
runAses.setRunAs(o);
InjectionCollection injections = (InjectionCollection)_context.getAttribute(InjectionCollection.INJECTION_COLLECTION);
if (injections != null)
injections.inject(o);
LifeCycleCallbackCollection callbacks = (LifeCycleCallbackCollection)_context.getAttribute(LifeCycleCallbackCollection.LIFECYCLE_CALLBACK_COLLECTION);
if (callbacks != null)
{
try
{
callbacks.callPostConstructCallback(o);
}
catch (Exception e)
{
throw new ServletException(e);
}
}
}
protected void destroy (Object o)
{
LifeCycleCallbackCollection callbacks = (LifeCycleCallbackCollection)_context.getAttribute(LifeCycleCallbackCollection.LIFECYCLE_CALLBACK_COLLECTION);
if (callbacks != null)
{
try
{
callbacks.callPreDestroyCallback(o);
}
catch (Exception e)
{
LOG.warn("Destroying instance of "+o.getClass(), e);
}
}
}
}
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