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1   /*
2    * Copyright 2003,2004 The Apache Software Foundation.
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, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.apache.struts.chain.commands.servlet;
17  
18  import org.apache.commons.logging.Log;
19  import org.apache.commons.logging.LogFactory;
20  import org.apache.struts.action.ActionForm;
21  import org.apache.struts.action.ActionMapping;
22  import org.apache.struts.chain.commands.AbstractExceptionHandler;
23  import org.apache.struts.chain.commands.util.ClassUtils;
24  import org.apache.struts.chain.contexts.ActionContext;
25  import org.apache.struts.chain.contexts.ServletActionContext;
26  import org.apache.struts.config.ActionConfig;
27  import org.apache.struts.config.ExceptionConfig;
28  import org.apache.struts.config.ForwardConfig;
29  import org.apache.struts.config.ModuleConfig;
30  
31  import javax.servlet.http.HttpServletRequest;
32  import javax.servlet.http.HttpServletResponse;
33  
34  /***
35   * <p>Handle the specified exception.</p>
36   *
37   * @version $Rev: 421119 $ $Date: 2005-05-07 12:11:38 -0400 (Sat, 07 May 2005)
38   *          $
39   */
40  public class ExceptionHandler extends AbstractExceptionHandler {
41      // ------------------------------------------------------ Instance Variables
42      private static final Log log = LogFactory.getLog(ExceptionHandler.class);
43  
44      // ------------------------------------------------------- Protected Methods
45      protected ForwardConfig handle(ActionContext context, Exception exception,
46          ExceptionConfig exceptionConfig, ActionConfig actionConfig,
47          ModuleConfig moduleConfig)
48          throws Exception {
49          // Look up the remaining properties needed for this handler
50          ServletActionContext sacontext = (ServletActionContext) context;
51          ActionForm actionForm = (ActionForm) sacontext.getActionForm();
52          HttpServletRequest request = sacontext.getRequest();
53          HttpServletResponse response = sacontext.getResponse();
54  
55          // Handle this exception
56          org.apache.struts.action.ExceptionHandler handler =
57              (org.apache.struts.action.ExceptionHandler) ClassUtils
58              .getApplicationInstance(exceptionConfig.getHandler());
59  
60          return (handler.execute(exception, exceptionConfig,
61              (ActionMapping) actionConfig, actionForm, request, response));
62      }
63  }