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1   /*
2    * Copyright 2004-2009 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  package org.seasar.cubby.action;
17  
18  import static org.seasar.cubby.CubbyConstants.ATTR_FILTER_CHAIN;
19  import static org.seasar.cubby.internal.util.RequestUtils.getAttribute;
20  
21  import javax.servlet.FilterChain;
22  import javax.servlet.http.HttpServletRequest;
23  import javax.servlet.http.HttpServletResponse;
24  
25  /**
26   * フィルターチェーンを実行する {@link ActionResult} です。
27   * 
28   * @author baba
29   */
30  public class PassThrough implements ActionResult {
31  
32  	/**
33  	 * {@inheritDoc}
34  	 * 
35  	 * @see FilterChain#doFilter(javax.servlet.ServletRequest,
36  	 *      javax.servlet.ServletResponse)
37  	 */
38  	public void execute(final ActionContext actionContext,
39  			final HttpServletRequest request, final HttpServletResponse response)
40  			throws Exception {
41  		final FilterChain filterChain = getAttribute(request, ATTR_FILTER_CHAIN);
42  		if (filterChain == null) {
43  			throw new NullPointerException("filterChain");
44  		}
45  		filterChain.doFilter(request, response);
46  	}
47  
48  }