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1   /*
2    * Copyright 2004-2010 the Seasar Foundation and the Others.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
13   * either express or implied. See the License for the specific language
14   * governing permissions and limitations under the License.
15   */
16  
17  package org.seasar.cubby.action;
18  
19  import static org.seasar.cubby.CubbyConstants.ATTR_FILTER_CHAIN;
20  import static org.seasar.cubby.internal.util.RequestUtils.getAttribute;
21  
22  import javax.servlet.FilterChain;
23  import javax.servlet.http.HttpServletRequest;
24  import javax.servlet.http.HttpServletResponse;
25  
26  /**
27   * フィルターチェーンを実行する {@link ActionResult} です。
28   * 
29   * @author baba
30   */
31  public class PassThrough implements ActionResult {
32  
33  	/**
34  	 * {@inheritDoc}
35  	 * 
36  	 * @see FilterChain#doFilter(javax.servlet.ServletRequest,
37  	 *      javax.servlet.ServletResponse)
38  	 */
39  	public void execute(final ActionContext actionContext,
40  			final HttpServletRequest request, final HttpServletResponse response)
41  			throws Exception {
42  		final FilterChain filterChain = getAttribute(request, ATTR_FILTER_CHAIN);
43  		if (filterChain == null) {
44  			throw new NullPointerException("filterChain");
45  		}
46  		filterChain.doFilter(request, response);
47  	}
48  
49  }