package com.iggroup.oss.sample.web.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import com.jamonapi.Monitor;
import com.jamonapi.MonitorFactory;
/**
* Basic Jamon filter for gathering per IP address statistics.
*/
public class MonitorFilter extends HttpServlet implements Filter {
@Override
public void init(FilterConfig filterConfig) {
}
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain filterChain) throws IOException, ServletException {
Monitor monitor = MonitorFactory.start(request.getRemoteAddr());
try {
filterChain.doFilter(request, response);
} finally {
monitor.stop();
}
}
protected String getURI(ServletRequest request) {
if (request instanceof HttpServletRequest) {
return ((HttpServletRequest) request).getRequestURI();
} else {
return "Not an HttpServletRequest";
}
}
@Override
public void destroy() {
}
}