Package org.springframework.cloud.sleuth.instrument.web.mvc

Class HandlerParser

java.lang.Object

org.springframework.cloud.sleuth.instrument.web.mvc.HandlerParser

public class HandlerParser
extends Object

Spring MVC specific type used to customize traced requests based on the handler.

Note: This should not duplicate data. For example, this should not add the tag "http.url".

Tagging policy adopted from spring cloud sleuth 1.3.x

Field Summary

Fields

Modifier and Type	Field	Description
static String	CONTROLLER_CLASS	Simple class name that processed the request.
static String	CONTROLLER_METHOD	Method name that processed the request.
static HandlerParser	NOOP	Adds no tags to the span representing the request.

Constructor Summary

Constructors

Constructor	Description
HandlerParser()

Method Summary

Modifier and Type	Method	Description
protected void	postHandle(javax.servlet.http.HttpServletRequest request, Object handler, org.springframework.web.servlet.ModelAndView modelAndView, SpanCustomizer customizer)	Invoked posterior to request invocation during HandlerInterceptor.postHandle(HttpServletRequest, HttpServletResponse, Object, ModelAndView).
protected void	preHandle(javax.servlet.http.HttpServletRequest request, Object handler, SpanCustomizer customizer)	Invoked prior to request invocation during HandlerInterceptor.preHandle(HttpServletRequest, HttpServletResponse, Object).

Methods inherited from class java.lang.Object

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

Field Detail

NOOP

public static final HandlerParser NOOP

Adds no tags to the span representing the request.

CONTROLLER_CLASS

public static final String CONTROLLER_CLASS

Simple class name that processed the request. ex BookController

CONTROLLER_METHOD

public static final String CONTROLLER_METHOD

Method name that processed the request. ex listOfBooks

Constructor Detail

HandlerParser

public HandlerParser()

Method Detail

preHandle

protected void preHandle(javax.servlet.http.HttpServletRequest request,
                         Object handler,
                         SpanCustomizer customizer)

Invoked prior to request invocation during HandlerInterceptor.preHandle(HttpServletRequest, HttpServletResponse, Object).

Adds the tags CONTROLLER_CLASS and CONTROLLER_METHOD. Override or use NOOP to change this behavior.

Parameters:

request - request

handler - handler

customizer - span customizer

postHandle

protected void postHandle(javax.servlet.http.HttpServletRequest request,
                          Object handler,
                          org.springframework.web.servlet.ModelAndView modelAndView,
                          SpanCustomizer customizer)

Invoked posterior to request invocation during HandlerInterceptor.postHandle(HttpServletRequest, HttpServletResponse, Object, ModelAndView).

Parameters:

request - request

handler - handler

customizer - span customizer