Package com.helixframework.tracing.http

Class HttpHeaderHelixCorrelationId

java.lang.Object

com.helixframework.tracing.http.HttpHeaderHelixCorrelationId

All Implemented Interfaces:

com.helixframework.tracing.HelixCorrelationId

public class HttpHeaderHelixCorrelationId
extends Object
implements com.helixframework.tracing.HelixCorrelationId

Implementation of HelixCorrelationId that retrieves correlation identifiers (trace id and span id) from HTTP headers in a provided HttpServletRequest instance. This class requires the names of the HTTP headers that contain the trace id and span id, as well as the HttpServletRequest instance to extract these values. It provides methods to access the trace id and span id header values using the traceId() and spanId() methods, respectively.

Constructor Summary

Constructors

Constructor	Description
HttpHeaderHelixCorrelationId(String traceIdHeaderName, String spanIdHeaderName, jakarta.servlet.http.HttpServletRequest httpRequest)	Constructs an instance of HttpHeaderHelixCorrelationId that retrieves trace id and span id from specified HTTP headers in the provided HttpServletRequest.

Method Summary

Modifier and Type	Method	Description
String	spanId()
String	traceId()

Methods inherited from class java.lang.Object

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

Constructor Details

HttpHeaderHelixCorrelationId

public HttpHeaderHelixCorrelationId(String traceIdHeaderName,
 String spanIdHeaderName,
 jakarta.servlet.http.HttpServletRequest httpRequest)

Constructs an instance of HttpHeaderHelixCorrelationId that retrieves trace id and span id from specified HTTP headers in the provided HttpServletRequest.

Parameters:

traceIdHeaderName - The name of the HTTP header containing the trace id.

spanIdHeaderName - The name of the HTTP header containing the span id.

httpRequest - The HttpServletRequest from which the headers will be read.

Method Details

traceId

public String traceId()

Specified by:

traceId in interface com.helixframework.tracing.HelixCorrelationId

spanId

public String spanId()

Specified by:

spanId in interface com.helixframework.tracing.HelixCorrelationId