Package com.google.cloud.spring.logging.extractors

Class CloudTraceIdExtractor

java.lang.Object

com.google.cloud.spring.logging.extractors.CloudTraceIdExtractor

All Implemented Interfaces:

TraceIdExtractor

public class CloudTraceIdExtractor
extends Object
implements TraceIdExtractor

Extracts trace IDs from HTTP requests using the x-cloud-trace-context header.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	X_CLOUD_TRACE_HEADER	The name of the header that contains the trace id.

Constructor Summary

Constructors

Constructor	Description
CloudTraceIdExtractor()

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Details

X_CLOUD_TRACE_HEADER

public static final String X_CLOUD_TRACE_HEADER

The name of the header that contains the trace id.

See Also:

• Constant Field Values

Constructor Details

CloudTraceIdExtractor

public CloudTraceIdExtractor()

Method Details

extractTraceIdFromRequest

public String extractTraceIdFromRequest(jakarta.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.