HttpFilter.java

   1 package org.argeo.cms.internal.kernel;
   2
   3 import java.io.IOException;
   4 import java.util.Enumeration;
   5
   6 import javax.servlet.Filter;
   7 import javax.servlet.FilterChain;
   8 import javax.servlet.FilterConfig;
   9 import javax.servlet.ServletException;
  10 import javax.servlet.ServletRequest;
  11 import javax.servlet.ServletResponse;
  12 import javax.servlet.http.HttpServletRequest;
  13 import javax.servlet.http.HttpServletResponse;
  14 import javax.servlet.http.HttpSession;
  15
  16 import org.apache.commons.logging.Log;
  17 import org.apache.commons.logging.LogFactory;
  18
  19 /** Abstract base class for http filters. */
  20 abstract class HttpFilter implements Filter {
  21         private final static Log log = LogFactory.getLog(HttpFilter.class);
  22
  23         protected abstract void doFilter(HttpSession httpSession,
  24                         HttpServletRequest request, HttpServletResponse response,
  25                         FilterChain filterChain) throws IOException, ServletException;
  26
  27         @Override
  28         public void doFilter(ServletRequest servletRequest,
  29                         ServletResponse servletResponse, FilterChain filterChain)
  30                         throws IOException, ServletException {
  31                 HttpServletRequest request = (HttpServletRequest) servletRequest;
  32                 doFilter(request.getSession(), request,
  33                                 (HttpServletResponse) servletResponse, filterChain);
  34         }
  35
  36         @Override
  37         public void destroy() {
  38         }
  39
  40         @Override
  41         public void init(FilterConfig arg0) throws ServletException {
  42         }
  43
  44 }