Package brave.spring.webmvc

Class SpanCustomizingHandlerInterceptor

java.lang.Object

brave.spring.webmvc.SpanCustomizingHandlerInterceptor

All Implemented Interfaces:

org.springframework.web.servlet.HandlerInterceptor

public final class SpanCustomizingHandlerInterceptor
extends Object
implements org.springframework.web.servlet.HandlerInterceptor

Adds application-tier data to an existing http span via HandlerParser. This also sets the request property "http.route" so that it can be used in naming the http span.

Use this when you start traces at the servlet layer via TracingFilter.

Method Summary

Modifier and Type	Method	Description
void	afterCompletion(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, Object handler, Exception ex)	Sets the "error" attribute so that the TracingFilter can read it.
void	postHandle(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, Object handler, org.springframework.web.servlet.ModelAndView modelAndView)
boolean	preHandle(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, Object o)	Parses the request and sets the "http.route" attribute so that the TracingFilter can read it.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

preHandle

public boolean preHandle(javax.servlet.http.HttpServletRequest request,
                         javax.servlet.http.HttpServletResponse response,
                         Object o)

Parses the request and sets the "http.route" attribute so that the TracingFilter can read it.

Specified by:

preHandle in interface org.springframework.web.servlet.HandlerInterceptor

postHandle

public void postHandle(javax.servlet.http.HttpServletRequest request,
                       javax.servlet.http.HttpServletResponse response,
                       Object handler,
                       org.springframework.web.servlet.ModelAndView modelAndView)

Specified by:

postHandle in interface org.springframework.web.servlet.HandlerInterceptor

afterCompletion

public void afterCompletion(javax.servlet.http.HttpServletRequest request,
                            javax.servlet.http.HttpServletResponse response,
                            Object handler,
                            Exception ex)

Sets the "error" attribute so that the TracingFilter can read it.

Specified by:

afterCompletion in interface org.springframework.web.servlet.HandlerInterceptor