import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
public class LogFilter implements Filter {
FilterConfig config;
public void setFilterConfig(FilterConfig config) {
this.config = config;
}
public FilterConfig getFilterConfig() {
return config;
}
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) {
ServletContext context = getFilterConfig().getServletContext();
long bef = System.currentTimeMillis();
try {
chain.doFilter(req, res);
} catch (Exception e) {
}
long aft = System.currentTimeMillis();
context.log("Request to " + req.getRemoteHost() + ": " + (aft - bef));
}
public void init(FilterConfig arg0) throws ServletException {
}
public void destroy() {
}
}