/* | |
* 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.apache.shiro.guice.web; | |
import javax.servlet.*; | |
import java.io.IOException; | |
import java.util.Iterator; | |
class SimpleFilterChain implements FilterChain { | |
private final FilterChain originalChain; | |
private final Iterator<? extends Filter> chain; | |
private boolean originalCalled = false; | |
public SimpleFilterChain(FilterChain originalChain, Iterator<? extends Filter> chain) { | |
this.originalChain = originalChain; | |
this.chain = chain; | |
} | |
public void doFilter(ServletRequest request, ServletResponse response) throws IOException, ServletException { | |
if (chain.hasNext()) { | |
Filter filter = chain.next(); | |
filter.doFilter(request, response, this); | |
} else if (!originalCalled) { | |
originalCalled = true; | |
originalChain.doFilter(request, response); | |
} | |
} | |
/** | |
* Exposed for testing, not part of public API. | |
* @return an Iterator of filters. | |
*/ | |
Iterator<? extends Filter> getFilters() { | |
return chain; | |
} | |
} |