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1   /*
2    * $Id: ActionFormResetInterceptor.java 651946 2008-04-27 13:41:38Z apetrelli $
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  package org.apache.struts2.s1;
23  
24  import javax.servlet.http.HttpServletRequest;
25  
26  import org.apache.struts.action.ActionForm;
27  import org.apache.struts.action.ActionMapping;
28  import org.apache.struts2.ServletActionContext;
29  import org.apache.struts2.dispatcher.Dispatcher;
30  
31  import com.opensymphony.xwork2.ActionInvocation;
32  import com.opensymphony.xwork2.config.Configuration;
33  import com.opensymphony.xwork2.inject.Inject;
34  import com.opensymphony.xwork2.interceptor.AbstractInterceptor;
35  import com.opensymphony.xwork2.interceptor.ScopedModelDriven;
36  
37  /***
38   *  Calls the reset() method on the ActionForm, if it exists.
39   */
40  public class ActionFormResetInterceptor extends AbstractInterceptor {
41  
42      protected Configuration configuration;
43  
44      @Inject
45      public void setConfiguration(Configuration config) {
46          this.configuration = config;
47      }
48      
49      @Override
50      public String intercept(ActionInvocation invocation) throws Exception {
51          Object action = invocation.getAction();
52  
53          if (action instanceof ScopedModelDriven) {
54              ScopedModelDriven modelDriven = (ScopedModelDriven) action;
55              Object model = modelDriven.getModel();
56              if (model != null && model instanceof ActionForm) {
57                  Struts1Factory factory = new Struts1Factory(configuration);
58                  ActionMapping mapping = factory.createActionMapping(invocation.getProxy().getConfig());
59                  HttpServletRequest req = ServletActionContext.getRequest();
60                  ((ActionForm)model).reset(mapping, req);
61              }
62          }
63          return invocation.invoke();
64      }
65  }