| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.jsecurity.web.servlet; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| import javax.servlet.*; |
| import java.io.IOException; |
| import java.util.List; |
| |
| /** |
| * @author Les Hazlewood |
| * @since 0.9 |
| */ |
| public class ProxiedFilterChain implements FilterChain { |
| |
| //TODO - complete JavaDoc |
| |
| private static final Log log = LogFactory.getLog(ProxiedFilterChain.class); |
| |
| private FilterChain orig; |
| private List<Filter> filters; |
| private int index = 0; |
| |
| public ProxiedFilterChain(FilterChain orig, List<Filter> filters) { |
| this.orig = orig; |
| this.filters = filters; |
| this.index = 0; |
| } |
| |
| public void doFilter(ServletRequest request, ServletResponse response) throws IOException, ServletException { |
| if (this.filters == null || this.filters.size() == this.index) { |
| //we've reached the end of the wrapped chain, so invoke the original one: |
| if (log.isTraceEnabled()) { |
| log.trace("Invoking original filter chain."); |
| } |
| this.orig.doFilter(request, response); |
| } else { |
| if (log.isTraceEnabled()) { |
| log.trace("Invoking wrapped filter at index [" + this.index + "]"); |
| } |
| this.filters.get(this.index++).doFilter(request, response, this); |
| } |
| } |
| } |