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1   package org.apache.struts2.spi;
2   
3   /***
4    * Intercepts an action request.
5    *
6    * @author crazybob@google.com (Bob Lee)
7    */
8   public interface Interceptor {
9   
10      /***
11       * Intercepts an action request.
12       *
13       * @param requestContext current request context
14       */
15      String intercept(RequestContext requestContext) throws Exception;
16  }