org.springframework.cloud.gcp.autoconfigure.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(HttpServletRequest req) Extract trace ID from the HTTP request.

Method Detail

extractTraceIdFromRequest

String extractTraceIdFromRequest(HttpServletRequest req)

Extract trace ID from the HTTP request.

Parameters:

req - The HTTP servlet request.

Returns:

The trace ID or null, if none found.