com.google.cloud.spring.logging.extractors

Interface TraceIdExtractor

All Known Implementing Classes:

XCloudTraceIdExtractor

public interface TraceIdExtractor

An extractor that can provide a trace ID from an HTTP request.

Author:

Chengyuan Zhao

Method Summary

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

Method Detail

extractTraceIdFromRequest

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

Extract trace ID from the HTTP request.

Parameters:

req - the HTTP servlet request.

Returns:

the trace ID or null, if none found.