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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  }