Package com.google.api.gax.tracing

Class MetricsTracer

java.lang.Object

com.google.api.gax.tracing.MetricsTracer

All Implemented Interfaces:

ApiTracer

@BetaApi
@InternalApi
public class MetricsTracer
extends Object
implements ApiTracer

This class computes generic metrics that can be observed in the lifecycle of an RPC operation. The responsibility of recording metrics should delegate to MetricsRecorder, hence this class should not have any knowledge about the observability framework used for metrics recording.

Nested Class Summary

Nested classes/interfaces inherited from interface com.google.api.gax.tracing.ApiTracer

ApiTracer.Scope

Constructor Summary

Constructors

Constructor	Description
MetricsTracer(MethodName methodName, MetricsRecorder metricsRecorder)

Method Summary

Modifier and Type	Method	Description
void	addAttributes(String key, String value)	Add attributes that will be attached to all metrics.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.api.gax.tracing.ApiTracer

attemptCancelled, attemptFailed, attemptFailedRetriesExhausted, attemptPermanentFailure, attemptStarted, attemptStarted, attemptSucceeded, batchRequestSent, connectionSelected, inScope, lroStartFailed, lroStartSucceeded, operationCancelled, operationFailed, operationSucceeded, requestSent, responseReceived

Constructor Details

MetricsTracer

public MetricsTracer(MethodName methodName,
 MetricsRecorder metricsRecorder)

Method Details

addAttributes

public void addAttributes(String key,
 String value)

Add attributes that will be attached to all metrics. This is expected to be called by handwritten client teams to add additional attributes that are not supposed be collected by Gax.