org.springframework.cloud.gcp.logging

Class CompositeTraceIdExtractor

java.lang.Object

org.springframework.cloud.gcp.logging.CompositeTraceIdExtractor

All Implemented Interfaces:

TraceIdExtractor

public class CompositeTraceIdExtractor
extends Object
implements TraceIdExtractor

Delegates checking HTTP request to a list of provided TraceIdExtractor, and provides the first one that is found.

Author:

Chengyuan Zhao

Constructor Summary

Constructors

Constructor and Description
CompositeTraceIdExtractor(TraceIdExtractor... extractors)

Method Summary

Modifier and Type	Method and Description
String	extractTraceIdFromRequest(javax.servlet.http.HttpServletRequest req) Extract trace ID from the HTTP request.
List<TraceIdExtractor>	getExtractors()

Methods inherited from class java.lang.Object

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

Constructor Detail

CompositeTraceIdExtractor

public CompositeTraceIdExtractor(TraceIdExtractor... extractors)

Method Detail

getExtractors

public List<TraceIdExtractor> getExtractors()

extractTraceIdFromRequest

public String extractTraceIdFromRequest(javax.servlet.http.HttpServletRequest req)

Description copied from interface: TraceIdExtractor

Extract trace ID from the HTTP request.

Specified by:

extractTraceIdFromRequest in interface TraceIdExtractor

Parameters:

req - The HTTP servlet request.

Returns:

The trace ID or null, if none found.