Package org.apache.bookkeeper.util

Bookkeeper utilities.

Interface Summary

Interface	Description
ByteBufVisitor.ByteBufVisitorCallback<T>	The callback interface for visiting buffers.
SubTreeCache.TreeProvider	A tree provider.
Tool	A tool interface that supports handling of generic command-line options.

Class Summary

Class	Description
AvailabilityOfEntriesOfLedger	Ordered collection of SequenceGroups will represent entries of the ledger residing in a bookie.
BookKeeperConstants	This class contains constants used in BookKeeper.
ByteBufList	ByteBufList is a holder of a sequence of ByteBuf objects.
ByteBufList.Encoder	ByteBufList encoder.
ByteBufVisitor	This class visits the possible wrapped child buffers of a Netty ByteBuf for a given offset and length.
ByteBufVisitor.GetBytesCallbackByteBuf<T>	A ByteBuf implementation that can be used as the destination buffer for a ByteBuf.getBytes(int, ByteBuf) for visiting the wrapped child buffers.
CertUtils	Certificate parsing utilities.
DaemonThreadFactory	Daemon thread factory.
DiskChecker	Class that provides utility functions for checking disk problems.
EntryFormatter	Formatter to format an entry.
EventLoopUtil	Utility class to initialize Netty event loops.
HardLink	Class for creating hardlinks.
HardLink.HardLinkCGUnix	Implementation of HardLinkCommandGetter class for Unix.
HardLink.HardLinkCGWin	Implementation of HardLinkCommandGetter class for Windows.
HardLink.LinkStats	HardLink statistics counters and methods.
HexDumpEntryFormatter	A hex dump entry formatter.
IOUtils	An utility class for I/O related functionality.
IteratorUtility	Utility class to merge iterators.
LedgerDirUtil
LedgerIdFormatter	Formatter to format a ledgerId.
LedgerIdFormatter.HexLedgerIdFormatter	hex ledgerId formatter.
LedgerIdFormatter.LongLedgerIdFormatter	long ledgerId formatter.
LedgerIdFormatter.UUIDLedgerIdFormatter	uuid ledgerId formatter.
LocalBookKeeper	Local Bookkeeper.
NettyChannelUtil	Contains utility methods for working with Netty Channels.
OrderedGenericCallback<T>	Generic callback implementation which will run the callback in the thread which matches the ordering key.
PageCacheUtil	Native I/O operations.
PortManager	Port manager provides free ports to allows multiple instances of the bookkeeper tests to run at once.
SafeRunnable	A SafeRunnable implementation.
Shell	A base class for running a Unix command.
Shell.ShellCommandExecutor	A simple shell command executor.
SnapshotMap<K,V>	A snapshotable map.
StringEntryFormatter	A String-based entry formatter.
StringUtils	Provided utilites for parsing network addresses, ledger-id from node paths etc.
SubTreeCache	Caching layer for traversing and monitoring changes on a znode subtree.
ZeroBuffer	Zero buffer utility.
ZkUtils	Provided utilites for zookeeper access, etc.

Enum Summary

Enum	Description
HardLink.OSType	OS Types.

Exception Summary

Exception	Description
DiskChecker.DiskErrorException	A disk error exception.
DiskChecker.DiskException	A general marker for disk-related exceptions.
DiskChecker.DiskOutOfSpaceException	An out-of-space disk exception.
DiskChecker.DiskWarnThresholdException	A disk warn threshold exception.
Shell.ExitCodeException	This is an IOException with exit code added.