Package alluxio.client.file

Interface Summary

Interface	Description
FileSystem	Basic file system interface supporting metadata operations and data operations.
FileSystemMasterClient	A client to use for interacting with a file system master.

Class Summary

Class	Description
CacheContext	Cache related context.
ConfigHashSync	Heartbeat task for getting the latest configuration versions from meta master, if versions change, then re-initialize the filesystem context.
DelegatingFileSystem	A wrapper of a FileSystem instance.
DoraCacheFileSystem	Dora Cache file system implementation.
DoraCacheFileSystem.DoraCacheFileSystemFactory	DoraCacheFileSystem Factory.
DoraFileOutStream	Provides a streaming API to write a file.
FileInStream	A streaming API to read a file.
FileOutStream	An abstraction of the output stream API in Alluxio to write data to a file or a block.
FileSystem.Factory	Factory for FileSystem.
FileSystemCache	A cache for storing FileSystem clients.
FileSystemCache.Key	A key which can be used to look up a FileSystem instance in the FileSystemCache.
FileSystemCache.Value	A value wraps a FileSystem instance and a ref count in the FileSystemCache.
FileSystemContext	An object which houses resources and information for performing FileSystem operations.
FileSystemContext.ClientPoolKey	Key for block worker client pools.
FileSystemContext.FileSystemContextFactory	FileSystemContextFactory, it can be extended.
FileSystemContextReinitializer	Reinitializes FileSystemContext used by FileSystem.
FileSystemContextReinitializer.ReinitAllowerResource	This resource allows reinitialization.
FileSystemContextReinitializer.ReinitBlockerResource	This resource blocks reinitialization until close.
FileSystemMasterClient.Factory	Factory for FileSystemMasterClient.
FileSystemMasterClientPool	A fixed pool of FileSystemMasterClient instances.
FileSystemUtils	Collection of utility methods to handle with FileSystem related objects.
ListStatusPartialResult	Contains information about the result of a partial listing.
MetadataCache	Cache for metadata of paths.
MetadataCachingFileSystem	FileSystem implementation with the capability of caching metadata of paths.
PositionReadFileInStream	Implementation of FileInStream that reads from a dora cache if possible.
RetryHandlingFileSystemMasterClient	A wrapper for the gRPC client to interact with the file system master, used by alluxio clients.
URIStatus	Wrapper around FileInfo.

Enum Summary

Enum	Description
CacheContext.StatsUnit	Stats Unit.
FileSystemContext.GetWorkerListType	This enum class is used for specifying the type of worker list to get.