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

Class NoopAuditManagerS3A

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.service.CompositeService

org.apache.hadoop.fs.s3a.audit.impl.NoopAuditManagerS3A

All Implemented Interfaces:

Closeable, AutoCloseable, AuditManagerS3A, AWSAuditEventCallbacks, NoopSpan.SpanActivationCallbacks, org.apache.hadoop.fs.store.audit.ActiveThreadSpanSource<AuditSpanS3A>, org.apache.hadoop.fs.store.audit.AuditSpanSource<AuditSpanS3A>, org.apache.hadoop.service.Service

@InterfaceAudience.Private
public class NoopAuditManagerS3A
extends org.apache.hadoop.service.CompositeService
implements AuditManagerS3A, NoopSpan.SpanActivationCallbacks

Simple No-op audit manager for use before a real audit chain is set up, and for testing. It does have the service lifecycle, so do create a unique instance whenever used.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.service.CompositeService

org.apache.hadoop.service.CompositeService.CompositeServiceShutdownHook

Nested classes/interfaces inherited from interface org.apache.hadoop.service.Service

org.apache.hadoop.service.Service.STATE

Field Summary

Fields inherited from class org.apache.hadoop.service.CompositeService

STOP_ONLY_STARTED_SERVICES

Constructor Summary

Constructors

Constructor and Description
NoopAuditManagerS3A() Constructor.

Method Summary

Modifier and Type	Method and Description
void	activate(AuditSpanS3A span) Span was activated.
boolean	checkAccess(org.apache.hadoop.fs.Path path, S3AFileStatus status, org.apache.hadoop.fs.permission.FsAction mode) Forward to the auditor.
static AuditSpanS3A	createNewSpan(String name, String path1, String path2) A static source of no-op spans, using the same span ID source as managed spans.
List<com.amazonaws.handlers.RequestHandler2>	createRequestHandlers() Create the request handler(s) for this audit service.
AuditSpanS3A	createSpan(String operation, String path1, String path2)
com.amazonaws.services.s3.transfer.internal.TransferStateChangeListener	createStateChangeListener() Return a transfer state change callback which fixes the active span context to be that in which the state change listener was created.
void	deactivate(AuditSpanS3A span) Span was deactivated.
AuditSpanS3A	getActiveAuditSpan()
OperationAuditor	getAuditor() Get the auditor; valid once initialized.
String	getOperationName() Get the name of the operation.
String	getSpanId() Return a span ID which must be unique for all spans within everywhere.
protected void	serviceInit(org.apache.hadoop.conf.Configuration conf)

Methods inherited from class org.apache.hadoop.service.CompositeService

addIfService, addService, getServices, removeService, serviceStart, serviceStop

Methods inherited from class org.apache.hadoop.service.AbstractService

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.service.Service

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, registerServiceListener, start, stop, unregisterServiceListener, waitForServiceToStop

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

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

Constructor Detail

NoopAuditManagerS3A

public NoopAuditManagerS3A()

Constructor. Will create and start a new instance of the auditor.

Method Detail

serviceInit

protected void serviceInit(org.apache.hadoop.conf.Configuration conf)
                    throws Exception

Overrides:

serviceInit in class org.apache.hadoop.service.CompositeService

Throws:

Exception

getSpanId

public String getSpanId()

Description copied from interface: AWSAuditEventCallbacks

Return a span ID which must be unique for all spans within everywhere. That effectively means part of the span SHOULD be derived from a UUID. Callers MUST NOT make any assumptions about the actual contents or structure of this string other than the uniqueness.

Specified by:

getSpanId in interface AWSAuditEventCallbacks

Returns:

a non-empty string

getOperationName

public String getOperationName()

Description copied from interface: AWSAuditEventCallbacks

Get the name of the operation.

Specified by:

getOperationName in interface AWSAuditEventCallbacks

Returns:

the operation name.

getAuditor

public OperationAuditor getAuditor()

Description copied from interface: AuditManagerS3A

Get the auditor; valid once initialized.

Specified by:

getAuditor in interface AuditManagerS3A

Returns:

the auditor.

getActiveAuditSpan

public AuditSpanS3A getActiveAuditSpan()

Specified by:

getActiveAuditSpan in interface org.apache.hadoop.fs.store.audit.ActiveThreadSpanSource<AuditSpanS3A>

createSpan

public AuditSpanS3A createSpan(String operation,
                               @Nullable
                               String path1,
                               @Nullable
                               String path2)
                        throws IOException

Specified by:

createSpan in interface org.apache.hadoop.fs.store.audit.AuditSpanSource<AuditSpanS3A>

Throws:

IOException

createRequestHandlers

public List<com.amazonaws.handlers.RequestHandler2> createRequestHandlers()
                                                                   throws IOException

Description copied from interface: AuditManagerS3A

Create the request handler(s) for this audit service. The list returned is mutable; new handlers may be added.

Specified by:

createRequestHandlers in interface AuditManagerS3A

Returns:

list of handlers for the SDK.

Throws:

IOException - failure.

createStateChangeListener

public com.amazonaws.services.s3.transfer.internal.TransferStateChangeListener createStateChangeListener()

Description copied from interface: AuditManagerS3A

Return a transfer state change callback which fixes the active span context to be that in which the state change listener was created. This can be used to audit the creation of the multipart upload initiation request which the transfer manager makes when a file to be copied is split up. This must be invoked/used within the active span.

Specified by:

createStateChangeListener in interface AuditManagerS3A

Returns:

a state change listener.

checkAccess

public boolean checkAccess(org.apache.hadoop.fs.Path path,
                           S3AFileStatus status,
                           org.apache.hadoop.fs.permission.FsAction mode)
                    throws IOException

Forward to the auditor.

Specified by:

checkAccess in interface AuditManagerS3A

Parameters:

path - path to check

status - status of the path.

mode - access mode.

Returns:

true if access is allowed.

Throws:

IOException - failure

activate

public void activate(AuditSpanS3A span)

Description copied from interface: NoopSpan.SpanActivationCallbacks

Span was activated.

Specified by:

activate in interface NoopSpan.SpanActivationCallbacks

Parameters:

span - span reference.

deactivate

public void deactivate(AuditSpanS3A span)

Description copied from interface: NoopSpan.SpanActivationCallbacks

Span was deactivated.

Specified by:

deactivate in interface NoopSpan.SpanActivationCallbacks

Parameters:

span - span reference.

createNewSpan

public static AuditSpanS3A createNewSpan(String name,
                                         String path1,
                                         String path2)

A static source of no-op spans, using the same span ID source as managed spans.

Parameters:

name - operation name.

path1 - first path of operation

path2 - second path of operation

Returns:

a span for the audit