RequestHolderApplicationServlet.java

package com.morevaadin.vaadin7.springsecurity.util;

/*
 * #%L
 * Vaadin 7 Spring Security Integration
 * %%
 * Copyright (C) 2012 Nicolas Frankel
 * %%
 * 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.
 * #L%
 */

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.security.core.context.SecurityContextHolder;

import com.vaadin.server.VaadinServlet;

@SuppressWarnings("serial")
public class RequestHolderApplicationServlet extends VaadinServlet {

	@Override
	protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

		SecurityContextHolder.setContext(SecurityContextHolder.createEmptyContext());

		RequestHolder.setRequest(request);

		super.service(request, response);

		// We remove the request from the thread local, there's no reason to keep it once the work is done
		RequestHolder.clean();

		SecurityContextHolder.clearContext();
	}
}