Class TraceContextInterceptor (6.82.0)

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public class TraceContextInterceptor implements ClientInterceptor

Intercepts all gRPC calls and injects trace context related headers to propagate trace context to Spanner. This class takes reference from OpenTelemetry's JAVA instrumentation library for gRPC. https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/9ecf7965aa455d41ea8cc0761b6c6b6eeb106324/instrumentation/grpc-1.6/library/src/main/java/io/opentelemetry/instrumentation/grpc/v1_6/TracingClientInterceptor.java#L27

Inheritance

java.lang.Object > TraceContextInterceptor

Implements

io.grpc.ClientInterceptor

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Constructors

TraceContextInterceptor(OpenTelemetry openTelemetry)

public TraceContextInterceptor(OpenTelemetry openTelemetry)

Parameter
Name	Description
openTelemetry	io.opentelemetry.api.OpenTelemetry

Methods

<ReqT,RespT>interceptCall(MethodDescriptor<ReqT,RespT> method, CallOptions callOptions, Channel next)

public ClientCall<ReqT,RespT> <ReqT,RespT>interceptCall(MethodDescriptor<ReqT,RespT> method, CallOptions callOptions, Channel next)

Parameters
Name	Description
method	io.grpc.MethodDescriptor<ReqT,RespT>
callOptions	io.grpc.CallOptions
next	io.grpc.Channel

Returns
Type	Description
io.grpc.ClientCall<ReqT,RespT>