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 and 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 and Description
HandlerParser()

Method Summary

Modifier and Type	Method and Description
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

See Also:

Constant Field Values

CONTROLLER_METHOD

public static final String CONTROLLER_METHOD

Method name that processed the request. ex listOfBooks

See Also:

Constant Field Values

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