Java tutorial
/** * The contents of this file are subject to the OpenMRS Public License * Version 1.0 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://license.openmrs.org * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the * License for the specific language governing rights and limitations * under the License. * * Copyright (C) OpenMRS, LLC. All Rights Reserved. */ package org.openmrs.contrib.metadatarepository.webapp.filter; import org.apache.commons.lang.StringUtils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import javax.servlet.FilterChain; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import javax.servlet.http.HttpServletRequest; import java.io.IOException; /** * Borrowed from the Display Tag project: * http://displaytag.sourceforge.net/xref-test/org/displaytag/filter/MockFilterSupport.html * * Todo: look into using Spring's MockFilterChain: * http://www.springframework.org/docs/api/org/springframework/mock/web/MockFilterChain.html */ public class MockFilterChain implements FilterChain { private final Log log = LogFactory.getLog(MockFilterChain.class); private String forwardURL; public void doFilter(ServletRequest request, ServletResponse response) throws IOException, ServletException { String uri = ((HttpServletRequest) request).getRequestURI(); String requestContext = ((HttpServletRequest) request).getContextPath(); if (StringUtils.isNotEmpty(requestContext) && uri.startsWith(requestContext)) { uri = uri.substring(requestContext.length()); } this.forwardURL = uri; log.debug("Forwarding to: " + uri); RequestDispatcher dispatcher = request.getRequestDispatcher(uri); dispatcher.forward(request, response); } public String getForwardURL() { return this.forwardURL; } }