package com.atlassian.core.filters;
   
   import javax.servlet.Filter;
   import javax.servlet.FilterConfig;
   import javax.servlet.ServletException;
   
   /**
    * This class contains two deprecated methods to make filters compatible with old web application servers that are using
    * the old servlet spec
   *
   * @deprecated since 4.0 use {@link AbstractHttpFilter} instead, which also does some casting for you.
   * @see AbstractHttpFilter
   */
  public abstract class AbstractFilter implements Filter
  {
      /** @deprecated Not needed in final version of Servlet 2.3 API - replaced by init(). */
      // NOTE: Applications don't work in Orion 1.5.2 without this method
      public FilterConfig getFilterConfig()
      {
          return null;
      }
  
      /** @deprecated Not needed in final version of Servlet 2.3 API - replaced by init(). */
      // NOTE: Applications don't work with Orion 1.5.2 without this method
      public void setFilterConfig(FilterConfig filterConfig)
      {
          try
          {
              init(filterConfig);
          }
          catch (ServletException e)
          {
              //do nothing
          }
      }
  
      public void init(FilterConfig filterConfig) throws ServletException
      {
          // Implemented for convenience
      }
  
      public void destroy()
      {
          // Implemented for convenience
      }
  }