//
// ========================================================================
// Copyright (c) 1995-2014 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.annotations;
import javax.servlet.MultipartConfigElement;
import javax.servlet.Servlet;
import javax.servlet.annotation.MultipartConfig;
import org.eclipse.jetty.annotations.AnnotationIntrospector.AbstractIntrospectableAnnotationHandler;
import org.eclipse.jetty.servlet.ServletHolder;
import org.eclipse.jetty.webapp.Descriptor;
import org.eclipse.jetty.webapp.MetaData;
import org.eclipse.jetty.webapp.WebAppContext;
/**
* MultiPartConfigAnnotationHandler
*
*
*/
public class MultiPartConfigAnnotationHandler extends AbstractIntrospectableAnnotationHandler
{
protected WebAppContext _context;
public MultiPartConfigAnnotationHandler(WebAppContext context)
{
//TODO verify that MultipartConfig is not inheritable
super(false);
_context = context;
}
/**
* @see org.eclipse.jetty.annotations.AnnotationIntrospector.AbstractIntrospectableAnnotationHandler#doHandle(java.lang.Class)
*/
public void doHandle(Class clazz)
{
if (!Servlet.class.isAssignableFrom(clazz))
return;
MultipartConfig multi = (MultipartConfig) clazz.getAnnotation(MultipartConfig.class);
if (multi == null)
return;
MetaData metaData = _context.getMetaData();
//TODO: The MultipartConfigElement needs to be set on the ServletHolder's Registration.
//How to identify the correct Servlet? If the Servlet has no WebServlet annotation on it, does it mean that this MultipartConfig
//annotation applies to all declared instances in web.xml/programmatically?
//Assuming TRUE for now.
ServletHolder holder = getServletHolderForClass(clazz);
if (holder != null)
{
Descriptor d = metaData.getOriginDescriptor(holder.getName()+".servlet.multipart-config");
//if a descriptor has already set the value for multipart config, do not
//let the annotation override it
if (d == null)
{
metaData.setOrigin(holder.getName()+".servlet.multipart-config",multi,clazz);
holder.getRegistration().setMultipartConfig(new MultipartConfigElement(multi));
}
}
}
private ServletHolder getServletHolderForClass (Class clazz)
{
ServletHolder holder = null;
ServletHolder[] holders = _context.getServletHandler().getServlets();
if (holders != null)
{
for (ServletHolder h : holders)
{
if (h.getClassName() != null && h.getClassName().equals(clazz.getName()))
{
holder = h;
}
}
}
return holder;
}
}