Package org.apache.bookkeeper.meta

Class NullMetadataBookieDriver.NullLedgerManagerFactory

java.lang.Object

org.apache.bookkeeper.meta.NullMetadataBookieDriver.NullLedgerManagerFactory

All Implemented Interfaces:

AutoCloseable, LedgerManagerFactory

Enclosing class:

NullMetadataBookieDriver

public static class NullMetadataBookieDriver.NullLedgerManagerFactory
extends Object
implements LedgerManagerFactory

A no-op implementation of LedgerManagerFactory.

Constructor Summary

Constructors

Constructor	Description
NullLedgerManagerFactory()

Method Summary

Modifier and Type	Method	Description
void	close()	Uninitialize the factory.
void	format(AbstractConfiguration<?> conf, LayoutManager lm)	Format the ledger metadata for LedgerManager.
int	getCurrentVersion()	Return current factory version.
LedgerManagerFactory	initialize(AbstractConfiguration conf, LayoutManager layoutManager, int factoryVersion)	Initialize a factory.
LedgerAuditorManager	newLedgerAuditorManager()	Return a ledger auditor manager, which is used to coordinate the auto-recovery process.
LedgerIdGenerator	newLedgerIdGenerator()	Return the ledger id generator, which is used for global unique ledger id generation.
LedgerManager	newLedgerManager()	return ledger manager for client-side to manage ledger metadata.
LedgerUnderreplicationManager	newLedgerUnderreplicationManager()	Return a ledger underreplication manager, which is used to mark ledgers as unreplicated, and to retrieve a ledger which is underreplicated so that it can be rereplicated.
boolean	validateAndNukeExistingCluster(AbstractConfiguration<?> conf, LayoutManager lm)	This method makes sure there are no unexpected znodes under ledgersRootPath and then it proceeds with ledger metadata formatting and nuking the cluster ZK state info.

Methods inherited from class java.lang.Object

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

Constructor Details

NullLedgerManagerFactory

public NullLedgerManagerFactory()

Method Details

getCurrentVersion

public int getCurrentVersion()

Description copied from interface: LedgerManagerFactory

Return current factory version.

Specified by:

getCurrentVersion in interface LedgerManagerFactory

Returns:

current version used by factory.

initialize

public LedgerManagerFactory initialize(AbstractConfiguration conf,
 LayoutManager layoutManager,
 int factoryVersion)

Description copied from interface: LedgerManagerFactory

Initialize a factory.

Specified by:

initialize in interface LedgerManagerFactory

Parameters:

conf - Configuration object used to initialize factory

layoutManager - Layout manager used for initialize ledger manager factory

factoryVersion - What version used to initialize factory.

Returns:

ledger manager factory instance

close

public void close()

Description copied from interface: LedgerManagerFactory

Uninitialize the factory.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface LedgerManagerFactory

newLedgerIdGenerator

public LedgerIdGenerator newLedgerIdGenerator()

Description copied from interface: LedgerManagerFactory

Return the ledger id generator, which is used for global unique ledger id generation.

Specified by:

newLedgerIdGenerator in interface LedgerManagerFactory

Returns:

ledger id generator.

newLedgerManager

public LedgerManager newLedgerManager()

Description copied from interface: LedgerManagerFactory

return ledger manager for client-side to manage ledger metadata.

Specified by:

newLedgerManager in interface LedgerManagerFactory

Returns:

ledger manager

See Also:

• LedgerManager

newLedgerUnderreplicationManager

public LedgerUnderreplicationManager newLedgerUnderreplicationManager()

Description copied from interface: LedgerManagerFactory

Return a ledger underreplication manager, which is used to mark ledgers as unreplicated, and to retrieve a ledger which is underreplicated so that it can be rereplicated.

Specified by:

newLedgerUnderreplicationManager in interface LedgerManagerFactory

Returns:

ledger underreplication manager

See Also:

• LedgerUnderreplicationManager

newLedgerAuditorManager

public LedgerAuditorManager newLedgerAuditorManager()
                                             throws IOException,
InterruptedException

Description copied from interface: LedgerManagerFactory

Return a ledger auditor manager, which is used to coordinate the auto-recovery process.

Specified by:

newLedgerAuditorManager in interface LedgerManagerFactory

Returns:

ledger auditor manager

Throws:

IOException

InterruptedException

See Also:

• LedgerAuditorManager

format

public void format(AbstractConfiguration<?> conf,
 LayoutManager lm)

Description copied from interface: LedgerManagerFactory

Format the ledger metadata for LedgerManager.

Specified by:

format in interface LedgerManagerFactory

Parameters:

conf - Configuration instance

lm - Layout manager

validateAndNukeExistingCluster

public boolean validateAndNukeExistingCluster(AbstractConfiguration<?> conf,
 LayoutManager lm)

Description copied from interface: LedgerManagerFactory

This method makes sure there are no unexpected znodes under ledgersRootPath and then it proceeds with ledger metadata formatting and nuking the cluster ZK state info.

Specified by:

validateAndNukeExistingCluster in interface LedgerManagerFactory

Parameters:

conf - Configuration instance

lm - Layout manager