io.opentracing.contrib.spring.web.interceptor

Class TracingHandlerInterceptor

java.lang.Object

org.springframework.web.servlet.handler.HandlerInterceptorAdapter

io.opentracing.contrib.spring.web.interceptor.TracingHandlerInterceptor

All Implemented Interfaces:

org.springframework.web.servlet.AsyncHandlerInterceptor, org.springframework.web.servlet.HandlerInterceptor

public class TracingHandlerInterceptor
extends org.springframework.web.servlet.handler.HandlerInterceptorAdapter

Tracing handler interceptor for spring web. It creates a new span for an incoming request if there is no active request and a separate span for Spring's exception handling. This handler depends on TracingFilter. Both classes have to be properly configured.

HTTP tags and logged errors are added in TracingFilter. This interceptor adds only spring related logs (handler class/method).

Author:

Pavol Loffay

Constructor Summary

Constructors

Constructor and Description
TracingHandlerInterceptor(io.opentracing.Tracer tracer)
TracingHandlerInterceptor(io.opentracing.Tracer tracer, List<HandlerInterceptorSpanDecorator> decorators)

Method Summary

Modifier and Type	Method and Description
void	afterCompletion(javax.servlet.http.HttpServletRequest httpServletRequest, javax.servlet.http.HttpServletResponse httpServletResponse, Object handler, Exception ex)
void	afterConcurrentHandlingStarted(javax.servlet.http.HttpServletRequest httpServletRequest, javax.servlet.http.HttpServletResponse httpServletResponse, Object handler)
boolean	preHandle(javax.servlet.http.HttpServletRequest httpServletRequest, javax.servlet.http.HttpServletResponse httpServletResponse, Object handler)

Methods inherited from class org.springframework.web.servlet.handler.HandlerInterceptorAdapter

postHandle

Methods inherited from class java.lang.Object

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

Constructor Detail

TracingHandlerInterceptor

public TracingHandlerInterceptor(io.opentracing.Tracer tracer)

Parameters:

tracer -

TracingHandlerInterceptor

public TracingHandlerInterceptor(io.opentracing.Tracer tracer,
                                 List<HandlerInterceptorSpanDecorator> decorators)

Parameters:

tracer - tracer

decorators - span decorators

Method Detail

preHandle

public boolean preHandle(javax.servlet.http.HttpServletRequest httpServletRequest,
                         javax.servlet.http.HttpServletResponse httpServletResponse,
                         Object handler)
                  throws Exception

Specified by:

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

Overrides:

preHandle in class org.springframework.web.servlet.handler.HandlerInterceptorAdapter

Throws:

Exception

afterConcurrentHandlingStarted

public void afterConcurrentHandlingStarted(javax.servlet.http.HttpServletRequest httpServletRequest,
                                           javax.servlet.http.HttpServletResponse httpServletResponse,
                                           Object handler)
                                    throws Exception

Specified by:

afterConcurrentHandlingStarted in interface org.springframework.web.servlet.AsyncHandlerInterceptor

Overrides:

afterConcurrentHandlingStarted in class org.springframework.web.servlet.handler.HandlerInterceptorAdapter

Throws:

Exception

afterCompletion

public void afterCompletion(javax.servlet.http.HttpServletRequest httpServletRequest,
                            javax.servlet.http.HttpServletResponse httpServletResponse,
                            Object handler,
                            Exception ex)
                     throws Exception

Specified by:

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

Overrides:

afterCompletion in class org.springframework.web.servlet.handler.HandlerInterceptorAdapter

Throws:

Exception