Package org.apache.bookkeeper.bookie

Class AbstractLogCompactor

java.lang.Object

org.apache.bookkeeper.bookie.AbstractLogCompactor

Direct Known Subclasses:

EntryLogCompactor, TransactionalEntryLogCompactor

public abstract class AbstractLogCompactor
extends java.lang.Object

Abstract entry log compactor used for compaction.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	AbstractLogCompactor.LogRemovalListener	LogRemovalListener.
static class	AbstractLogCompactor.Throttler	class Throttler.

Field Summary

Fields

Modifier and Type	Field	Description
protected ServerConfiguration	conf
protected AbstractLogCompactor.LogRemovalListener	logRemovalListener
protected AbstractLogCompactor.Throttler	throttler

Constructor Summary

Constructors

Constructor	Description
AbstractLogCompactor(ServerConfiguration conf, AbstractLogCompactor.LogRemovalListener logRemovalListener)

Method Summary

Modifier and Type	Method	Description
void	cleanUpAndRecover()	Do nothing by default.
abstract boolean	compact(EntryLogMetadata entryLogMeta)	Compact entry log file.

Methods inherited from class java.lang.Object

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

Field Detail

conf

protected final ServerConfiguration conf

throttler

protected final AbstractLogCompactor.Throttler throttler

logRemovalListener

protected final AbstractLogCompactor.LogRemovalListener logRemovalListener

Constructor Detail

AbstractLogCompactor

public AbstractLogCompactor(ServerConfiguration conf,
                            AbstractLogCompactor.LogRemovalListener logRemovalListener)

Method Detail

compact

public abstract boolean compact(EntryLogMetadata entryLogMeta)

Compact entry log file.

Parameters:

entryLogMeta - log metadata for the entry log to be compacted

Returns:

true for succeed

cleanUpAndRecover

public void cleanUpAndRecover()

Do nothing by default. Intended for subclass to override this method.