1    package com.acme.filter; 
2     
3    import javax.servlet.FilterChain; 
4    import javax.servlet.FilterConfig; 
5    import javax.servlet.ServletRequest; 
6    import javax.servlet.ServletResponse; 
7     
8    public class GenericFilter implements javax.servlet.Filter { 
9        private FilterConfig filterConfig; 
10    
11       public void doFilter(final ServletRequest request, final ServletResponse response, FilterChain chain) throws java.io.IOException, 
12               javax.servlet.ServletException { 
13           chain.doFilter(request, response); 
14       } 
15    
16       public FilterConfig getFilterConfig() { 
17           return filterConfig; 
18       } 
19    
20    
21       public void init(FilterConfig config) { 
22           this.filterConfig = config; 
23       } 
24    
25       public void destroy() { 
26           this.filterConfig = null; 
27       } 
28   } 
29