/**
* This Source Code Form is subject to the terms of the Mozilla Public License,
* v. 2.0. If a copy of the MPL was not distributed with this file, You can
* obtain one at http://mozilla.org/MPL/2.0/. OpenMRS is also distributed under
* the terms of the Healthcare Disclaimer located at http://openmrs.org/license.
*
* Copyright (C) OpenMRS Inc. OpenMRS is a registered trademark and the OpenMRS
* graphic logo is a trademark of OpenMRS Inc.
*/
package org.openmrs.web;
import javax.servlet.ServletException;
import org.openmrs.module.web.WebModuleUtil;
import org.openmrs.util.OpenmrsClassLoader;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeansException;
import org.springframework.web.context.support.XmlWebApplicationContext;
/**
* This class is only used to get access to the dispatcher servlet that handles static content. <br>
* <br>
* After creation, this object is saved to WebModuleUtil for later use. When Spring's root
* webApplicationContext is refreshed, this dispatcher servlet needs to be refreshed too.
*/
public class StaticDispatcherServlet extends org.springframework.web.servlet.DispatcherServlet {
private static final long serialVersionUID = 1L;
private Logger log = LoggerFactory.getLogger(this.getClass());
/**
* @see org.springframework.web.servlet.FrameworkServlet#initFrameworkServlet()
*/
@Override
protected void initFrameworkServlet() throws ServletException, BeansException {
Thread.currentThread().setContextClassLoader(OpenmrsClassLoader.getInstance());
log.info("Framework being initialized for static content");
WebModuleUtil.setStaticDispatcherServlet(this);
super.initFrameworkServlet();
}
/**
* Called by the ModuleUtil after adding in a new, updating, starting, or stopping a module.
* This needs to be called because each spring dispatcher servlet creates a new application
* context, which therefore needs to be refreshed too.
*
* @throws ServletException
*/
public void refreshApplicationContext() throws ServletException {
log.info("Application context for the static content dispatcher servlet is being refreshed");
Thread.currentThread().setContextClassLoader(OpenmrsClassLoader.getInstance());
((XmlWebApplicationContext) getWebApplicationContext()).setClassLoader(OpenmrsClassLoader.getInstance());
refresh();
}
public void stopAndCloseApplicationContext() {
try {
XmlWebApplicationContext ctx = (XmlWebApplicationContext) getWebApplicationContext();
ctx.stop();
ctx.close();
}
catch (Exception e) {
log.error("Exception while stopping and closing static content dispatcher servlet context: ", e);
}
}
}