org.atmosphere.util.ServletContextFactory Maven / Gradle / Ivy
/*
* Copyright 2015 Async-IO.org
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package org.atmosphere.util;
import javax.servlet.ServletContext;
/**
* A simple Factory to get access to the {@linl ServletContext}. This factory won't work if more than one Servlet is deployed inside the same war.
*
* @author Jeanfrancois Arcand
*/
public class ServletContextFactory {
private ServletContext servletContext = null;
private static ServletContextFactory servletContextFactory;
private ServletContextFactory() {
}
/**
* Set the ServletContext
*
* @param servletContext ServletContext
*/
public void init(ServletContext servletContext) {
this.servletContext = servletContext;
}
public ServletContext getServletContext() {
if (servletContext != null) {
return servletContext;
}
return null;
}
public final static ServletContextFactory getDefault() {
if (servletContextFactory == null) servletContextFactory = new ServletContextFactory();
return servletContextFactory;
}
}