org.apache.hadoop.fs.s3a.audit.impl

Class NoopSpan

java.lang.Object

org.apache.hadoop.fs.s3a.audit.impl.AbstractAuditSpanImpl

org.apache.hadoop.fs.s3a.audit.impl.NoopSpan

All Implemented Interfaces:

Closeable, AutoCloseable, AuditSpanS3A, AWSAuditEventCallbacks, org.apache.hadoop.fs.store.audit.AuditSpan

public class NoopSpan
extends AbstractAuditSpanImpl

A minimal span with no direct side effects. It does have an ID and, if given callbacks, will notify the callback implementation of activation and deactivation. Subclassable for tests.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	NoopSpan.SpanActivationCallbacks Activation callbacks.

Field Summary

Fields

Modifier and Type	Field and Description
static NoopSpan	INSTANCE Static public instance.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	NoopSpan()
protected	NoopSpan(String spanId, String operationName, String path1, String path2, NoopSpan.SpanActivationCallbacks activationCallbacks) Create a no-op span.

Method Summary

Modifier and Type	Method and Description
AuditSpanS3A	activate()
void	deactivate()
String	toString()

Methods inherited from class org.apache.hadoop.fs.s3a.audit.impl.AbstractAuditSpanImpl

close, getOperationName, getSpanId, getTimestamp

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.fs.store.audit.AuditSpan

isValidSpan, set

Methods inherited from interface org.apache.hadoop.fs.s3a.audit.AWSAuditEventCallbacks

afterAttempt, afterError, afterResponse, beforeAttempt, beforeExecution, beforeMarshalling, beforeRequest, beforeUnmarshalling, requestCreated

Field Detail

INSTANCE

public static final NoopSpan INSTANCE

Static public instance.

Constructor Detail

NoopSpan

protected NoopSpan(String spanId,
                   String operationName,
                   String path1,
                   String path2,
                   NoopSpan.SpanActivationCallbacks activationCallbacks)

Create a no-op span.

Parameters:

spanId - span ID

operationName - operation name

path1 - path

path2 - path 2

activationCallbacks - Activation callbacks.

NoopSpan

protected NoopSpan()

Method Detail

activate

public AuditSpanS3A activate()

Specified by:

activate in interface org.apache.hadoop.fs.store.audit.AuditSpan

Overrides:

activate in class AbstractAuditSpanImpl

deactivate

public void deactivate()

toString

public String toString()

Overrides:

toString in class Object