@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
// HttpServletRequest httpRequest = (HttpServletRequest) request;
HttpServletResponse httpResponse = (HttpServletResponse) response;
StatHttpServletResponseWrapper responseWrapper =
new StatHttpServletResponseWrapper(httpResponse);
final String method = request.getParameter(Constants.SYS_PARAM_KEY_METHOD);
final String appkey = request.getParameter(Constants.SYS_PARAM_KEY_APPKEY);
long startNano = System.nanoTime();
long startMillis = System.currentTimeMillis();
serviceAppStat.beforeInvoke();
ServiceMethodStat methodStat = serviceAppStat.getMethodStat(appkey, method);
if (methodStat == null) {
methodStat = serviceAppStat.getMethodStat(appkey, method);
}
if (methodStat != null) {
methodStat.beforeInvoke(startMillis);
}
Throwable error = null;
try {
chain.doFilter(request, responseWrapper);
} catch (IOException e) {
error = e;
throw e;
} catch (ServletException e) {
error = e;
throw e;
} catch (RuntimeException e) {
error = e;
throw e;
} catch (Error e) {
error = e;
throw e;
} finally {
long endNano = System.nanoTime();
long nanos = endNano - startNano;
serviceAppStat.afterInvoke(error, nanos);
if (methodStat != null) {
methodStat.afterInvoke(error, nanos);
request.setAttribute(SERVICE_EXEC_TIME, nanos / (1000 * 1000));
}
}
}
@Override
public void destroy() {
serviceAppStat.destroy();
}