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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   }

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