Interface ApiTracer (2.69.0)

  public 
  
 interface 
 ApiTracer 
 

Implementations of this class trace the logical flow of a google cloud client.

A single instance of a tracer represents a logical operation that can be annotated throughout its lifecycle. Constructing an instance of a subclass will implicitly signal the start of a new operation.

For internal use only. google-cloud-java libraries should extend BaseApiTracer .

Methods

attemptCancelled()

  public 
  
 default 
  
 void 
  
 attemptCancelled 
 () 
 

Add an annotation that the attempt was cancelled by the user.

attemptFailed(Throwable error, Duration delay)

  public 
  
 default 
  
 void 
  
 attemptFailed 
 ( 
 Throwable 
  
 error 
 , 
  
 Duration 
  
 delay 
 ) 
 

This method is obsolete. Use #attemptFailedDuration(Throwable, java.time.Duration) instead.

Parameters
Name
Description
error
delay
org.threeten.bp.Duration

attemptFailedDuration(Throwable error, Duration delay)

  public 
  
 default 
  
 void 
  
 attemptFailedDuration 
 ( 
 Throwable 
  
 error 
 , 
  
 Duration 
  
 delay 
 ) 
 

Adds an annotation that the attempt failed, but another attempt will be made after the delay.

Parameters
Name
Description
error
Throwable

the transient error that caused the attempt to fail.

delay
Duration

the amount of time to wait before the next attempt will start.

attemptFailedRetriesExhausted(Throwable error)

  public 
  
 default 
  
 void 
  
 attemptFailedRetriesExhausted 
 ( 
 Throwable 
  
 error 
 ) 
 

Adds an annotation that the attempt failed and that no further attempts will be made because retry limits have been reached.

Parameter
Name
Description
error
Throwable

the last error received before retries were exhausted.

attemptPermanentFailure(Throwable error)

  public 
  
 default 
  
 void 
  
 attemptPermanentFailure 
 ( 
 Throwable 
  
 error 
 ) 
 

Adds an annotation that the attempt failed and that no further attempts will be made because the last error was not retryable.

Parameter
Name
Description
error
Throwable

the error that caused the final attempt to fail.

attemptStarted(int attemptNumber) (deprecated)

  public 
  
 default 
  
 void 
  
 attemptStarted 
 ( 
 int 
  
 attemptNumber 
 ) 
 

Deprecated. Please use #attemptStarted(Object, int) instead.

Adds an annotation that an attempt is about to start. In general this should occur at the very start of the operation. The attemptNumber is zero based. So the initial attempt will be 0.

Parameter
Name
Description
attemptNumber
int

the zero based sequential attempt number.

attemptStarted(Object request, int attemptNumber)

  public 
  
 default 
  
 void 
  
 attemptStarted 
 ( 
 Object 
  
 request 
 , 
  
 int 
  
 attemptNumber 
 ) 
 

Adds an annotation that an attempt is about to start with additional information from the request. In general this should occur at the very start of the operation. The attemptNumber is zero based. So the initial attempt will be 0.

Parameters
Name
Description
request
Object

request of this attempt.

attemptNumber
int

the zero based sequential attempt number.

attemptSucceeded()

  public 
  
 default 
  
 void 
  
 attemptSucceeded 
 () 
 

Adds an annotation that the attempt succeeded.

batchRequestSent(long elementCount, long requestSize)

  public 
  
 default 
  
 void 
  
 batchRequestSent 
 ( 
 long 
  
 elementCount 
 , 
  
 long 
  
 requestSize 
 ) 
 

Adds an annotation that a batch of writes has been flushed.

Parameters
Name
Description
elementCount
long

the number of elements in the batch.

requestSize
long

the size of the batch in bytes.

connectionSelected(String id)

  public 
  
 default 
  
 void 
  
 connectionSelected 
 ( 
 String 
  
 id 
 ) 
 

Annotates the operation with selected connection id from the ChannelPool .

Parameter
Name
Description
id
String

the local connection identifier of the selected connection.

inScope()

  public 
  
 default 
  
 ApiTracer 
 . 
 Scope 
  
 inScope 
 () 
 

Asks the underlying implementation to install itself as a thread local. This allows for interop between clients using gax and external resources to share the same implementation of the tracing. For example OpenCensus will install a thread local that can read by the GRPC.

Returns
Type
Description

lroStartFailed(Throwable error)

  public 
  
 default 
  
 void 
  
 lroStartFailed 
 ( 
 Throwable 
  
 error 
 ) 
 

Signals that the initial RPC for the long running operation failed.

Parameter
Name
Description
error
Throwable

the error that caused the long running operation fail.

lroStartSucceeded()

  public 
  
 default 
  
 void 
  
 lroStartSucceeded 
 () 
 

Signals that the initial RPC successfully started the long running operation. The long running operation will now be polled for completion.

operationCancelled()

  public 
  
 default 
  
 void 
  
 operationCancelled 
 () 
 

Signals that the operation was cancelled by the user. The tracer is now considered closed and should no longer be used.

operationFailed(Throwable error)

  public 
  
 default 
  
 void 
  
 operationFailed 
 ( 
 Throwable 
  
 error 
 ) 
 

Signals that the overall operation has failed and no further attempts will be made. The tracer is now considered closed and should no longer be used.

Parameter
Name
Description
error
Throwable

the final error that caused the operation to fail.

operationSucceeded()

  public 
  
 default 
  
 void 
  
 operationSucceeded 
 () 
 

Signals that the overall operation has finished successfully. The tracer is now considered closed and should no longer be used.

requestSent()

  public 
  
 default 
  
 void 
  
 requestSent 
 () 
 

Adds an annotation that a streaming request has been sent.

responseReceived()

  public 
  
 default 
  
 void 
  
 responseReceived 
 () 
 

Adds an annotation that a streaming response has been received.

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