Uses of Interface
alluxio.underfs.UnderFileSystem

Packages that use UnderFileSystem

Package	Description
alluxio.cli
alluxio.client.file.ufs
alluxio.concurrent
alluxio.master
alluxio.master.file.meta
alluxio.master.job
alluxio.master.journalv0.ufs
alluxio.underfs
alluxio.underfs.abfs
alluxio.underfs.adl
alluxio.underfs.cephfs
alluxio.underfs.cephfshadoop
alluxio.underfs.cos
alluxio.underfs.cosn
alluxio.underfs.gcs
alluxio.underfs.gcs.v2
alluxio.underfs.hdfs
alluxio.underfs.local
alluxio.underfs.obs
alluxio.underfs.oss
alluxio.underfs.ozone
alluxio.underfs.s3a
alluxio.underfs.wasb
alluxio.util
alluxio.worker.dora
alluxio.worker.grpc
alluxio.worker.netty

Uses of UnderFileSystem in alluxio.cli

Constructors in alluxio.cli with parameters of type UnderFileSystem

Constructor and Description
S3ASpecificOperations(String testDirectory, UnderFileSystem ufs, InstancedConfiguration configuration)
UnderFileSystemCommonOperations(String ufsPath, String topLevelTestDirectory, UnderFileSystem ufs, InstancedConfiguration configuration)

Uses of UnderFileSystem in alluxio.client.file.ufs

Fields in alluxio.client.file.ufs with type parameters of type UnderFileSystem

Modifier and Type	Field and Description
protected CloseableResource<UnderFileSystem>	UfsBaseFileSystem.mUfs

Uses of UnderFileSystem in alluxio.concurrent

Classes in alluxio.concurrent that implement UnderFileSystem

Modifier and Type	Class and Description
class	ManagedBlockingUfsForwarder Forwarder for UnderFileSystem objects that works through with ForkJoinPool's managed blocking.

Constructors in alluxio.concurrent with parameters of type UnderFileSystem

Constructor and Description
ManagedBlockingUfsForwarder(UnderFileSystem ufs) Creates ManagedBlockingUfsForwarder instance.

Uses of UnderFileSystem in alluxio.master

Methods in alluxio.master with parameters of type UnderFileSystem

Modifier and Type	Method and Description
protected void	NoopUfsManager.connectUfs(UnderFileSystem fs)

Uses of UnderFileSystem in alluxio.master.file.meta

Methods in alluxio.master.file.meta that return types with arguments of type UnderFileSystem

Modifier and Type	Method and Description
CloseableResource<UnderFileSystem>	MountTable.Resolution.acquireUfsResource()

Uses of UnderFileSystem in alluxio.master.job

Constructors in alluxio.master.job with parameters of type UnderFileSystem

Constructor and Description
UfsFileIterable(UnderFileSystem fs, String path, Optional<String> user, java.util.function.Predicate<FileInfo> filter) Creates a new instance of FileIterable.

Uses of UnderFileSystem in alluxio.master.journalv0.ufs

Constructors in alluxio.master.journalv0.ufs with parameters of type UnderFileSystem

Constructor and Description
EntryOutputStream(UnderFileSystem ufs, URI log, JournalFormatter journalFormatter, UfsJournalWriter journalWriter)
UfsCheckpointManager(UnderFileSystem ufs, URI checkpoint, UfsJournalWriter writer) Creates a new instance of UfsCheckpointManager.

Uses of UnderFileSystem in alluxio.underfs

Subinterfaces of UnderFileSystem in alluxio.underfs

Modifier and Type	Interface and Description
interface	AtomicFileOutputStreamCallback A AtomicFileOutputStreamCallback is the callback interface used when using a AtomicFileOutputStream.

Classes in alluxio.underfs that implement UnderFileSystem

Modifier and Type	Class and Description
class	BaseUnderFileSystem A base abstract UnderFileSystem.
class	ConsistentUnderFileSystem Represents a consistent under filesystem which does not have eventual consistency issues.
class	ObjectUnderFileSystem An object based abstract UnderFileSystem.
class	UnderFileSystemWithLogging This class forwards all calls to the UnderFileSystem interface to an internal implementation.

Fields in alluxio.underfs with type parameters of type UnderFileSystem

Modifier and Type	Field and Description
protected ConcurrentHashMap<AbstractUfsManager.Key,UnderFileSystem>	AbstractUfsManager.mUnderFileSystemMap Maps from key to UnderFileSystem instances.

Methods in alluxio.underfs that return UnderFileSystem

Modifier and Type	Method and Description
static UnderFileSystem	UnderFileSystem.Factory.create(String path, AlluxioConfiguration conf) Creates the UnderFileSystem instance according to its UFS path.
UnderFileSystem	UnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf) Creates a new client for accessing the given path.
static UnderFileSystem	UnderFileSystem.Factory.create(String path, UnderFileSystemConfiguration ufsConf) Creates a client for operations involved with the under file system.
static UnderFileSystem	UnderFileSystem.Factory.createForRoot(AlluxioConfiguration conf)
static UnderFileSystem	UnderFileSystem.Factory.createWithRecorder(String path, UnderFileSystemConfiguration ufsConf, Recorder recorder) Creates a client for operations involved with the under file system and record the execution process.
UnderFileSystem	AbstractUfsManager.getOrAdd(AlluxioURI ufsUri, UnderFileSystemConfiguration ufsConf) Return a UFS instance if it already exists in the cache, otherwise, creates a new instance and return it.
UnderFileSystem	UnderFileSystemWithLogging.getUnderFileSystem() This is only used in the test.

Methods in alluxio.underfs that return types with arguments of type UnderFileSystem

Modifier and Type	Method and Description
CloseableResource<UnderFileSystem>	UfsManager.UfsClient.acquireUfsResource()
protected Optional<UnderFileSystem>	AbstractUfsManager.get(AbstractUfsManager.Key key)
Optional<UnderFileSystem>	AbstractUfsManager.get(AlluxioURI ufsUri, UnderFileSystemConfiguration ufsConf) Gets an instance for the given UFS URI and configuration, if such exists.

Methods in alluxio.underfs with parameters of type UnderFileSystem

Modifier and Type	Method and Description
InputStream	UfsInputStreamCache.acquire(UnderFileSystem ufs, String path, FileId fileId, OpenOptions openOptions) Acquires an input stream.
protected void	JobUfsManager.connectUfs(UnderFileSystem fs)
protected void	MasterUfsManager.connectUfs(UnderFileSystem fs)
protected void	WorkerUfsManager.connectUfs(UnderFileSystem fs)
protected abstract void	AbstractUfsManager.connectUfs(UnderFileSystem fs) Takes any necessary actions required to establish a connection to the under file system.

Constructor parameters in alluxio.underfs with type arguments of type UnderFileSystem

Constructor and Description
UfsClient(java.util.function.Supplier<UnderFileSystem> ufsSupplier, AlluxioURI ufsMountPointUri)

Uses of UnderFileSystem in alluxio.underfs.abfs

Classes in alluxio.underfs.abfs that implement UnderFileSystem

Modifier and Type	Class and Description
class	AbfsUnderFileSystem A Microsoft Azure Data Lake Storage Gen2 Implementation.

Methods in alluxio.underfs.abfs that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	AbfsUnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf)

Uses of UnderFileSystem in alluxio.underfs.adl

Classes in alluxio.underfs.adl that implement UnderFileSystem

Modifier and Type	Class and Description
class	AdlUnderFileSystem A Microsoft Azure Data Lake Storage Gen 1 Implementation.

Methods in alluxio.underfs.adl that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	AdlUnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf)

Uses of UnderFileSystem in alluxio.underfs.cephfs

Classes in alluxio.underfs.cephfs that implement UnderFileSystem

Modifier and Type	Class and Description
class	CephFSUnderFileSystem CephFS UnderFileSystem implementation.

Methods in alluxio.underfs.cephfs that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	CephFSUnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf)

Uses of UnderFileSystem in alluxio.underfs.cephfshadoop

Classes in alluxio.underfs.cephfshadoop that implement UnderFileSystem

Modifier and Type	Class and Description
class	CephfsHadoopUnderFileSystem Cephfs-Hadoop UnderFileSystem implementation.

Methods in alluxio.underfs.cephfshadoop that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	CephfsHadoopUnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf)

Uses of UnderFileSystem in alluxio.underfs.cos

Classes in alluxio.underfs.cos that implement UnderFileSystem

Modifier and Type	Class and Description
class	COSUnderFileSystem Tencent Cloud COS UnderFileSystem implementation.

Methods in alluxio.underfs.cos that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	COSUnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf)

Uses of UnderFileSystem in alluxio.underfs.cosn

Classes in alluxio.underfs.cosn that implement UnderFileSystem

Modifier and Type	Class and Description
class	CosnUnderFileSystem COSN UnderFileSystem implementation.

Methods in alluxio.underfs.cosn that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	CosNUnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf)

Uses of UnderFileSystem in alluxio.underfs.gcs

Classes in alluxio.underfs.gcs that implement UnderFileSystem

Modifier and Type	Class and Description
class	GCSUnderFileSystem Google Cloud Storage UnderFileSystem implementation based on the jets3t library.

Methods in alluxio.underfs.gcs that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	GCSUnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf)

Uses of UnderFileSystem in alluxio.underfs.gcs.v2

Classes in alluxio.underfs.gcs.v2 that implement UnderFileSystem

Modifier and Type	Class and Description
class	GCSV2UnderFileSystem GCS FS UnderFileSystem implementation based on the Google cloud storage library.

Uses of UnderFileSystem in alluxio.underfs.hdfs

Classes in alluxio.underfs.hdfs that implement UnderFileSystem

Modifier and Type	Class and Description
class	HdfsUnderFileSystem HDFS UnderFileSystem implementation.

Methods in alluxio.underfs.hdfs that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	HdfsUnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf)

Uses of UnderFileSystem in alluxio.underfs.local

Classes in alluxio.underfs.local that implement UnderFileSystem

Modifier and Type	Class and Description
class	LocalUnderFileSystem Local FS UnderFileSystem implementation.

Methods in alluxio.underfs.local that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	LocalUnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf)

Uses of UnderFileSystem in alluxio.underfs.obs

Classes in alluxio.underfs.obs that implement UnderFileSystem

Modifier and Type	Class and Description
class	OBSUnderFileSystem Huawei OBS UnderFileSystem implementation.

Methods in alluxio.underfs.obs that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	OBSUnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf)

Uses of UnderFileSystem in alluxio.underfs.oss

Classes in alluxio.underfs.oss that implement UnderFileSystem

Modifier and Type	Class and Description
class	OSSUnderFileSystem Aliyun OSS UnderFileSystem implementation.

Methods in alluxio.underfs.oss that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	OSSUnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf)

Uses of UnderFileSystem in alluxio.underfs.ozone

Classes in alluxio.underfs.ozone that implement UnderFileSystem

Modifier and Type	Class and Description
class	OzoneUnderFileSystem Ozone UnderFileSystem implementation.

Methods in alluxio.underfs.ozone that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	OzoneUnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf)

Uses of UnderFileSystem in alluxio.underfs.s3a

Classes in alluxio.underfs.s3a that implement UnderFileSystem

Modifier and Type	Class and Description
class	S3AUnderFileSystem S3 UnderFileSystem implementation based on the aws-java-sdk-s3 library.

Methods in alluxio.underfs.s3a that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	S3AUnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf)

Uses of UnderFileSystem in alluxio.underfs.wasb

Classes in alluxio.underfs.wasb that implement UnderFileSystem

Modifier and Type	Class and Description
class	WasbUnderFileSystem An UnderFileSystem uses the Microsoft Azure Blob Storage.

Methods in alluxio.underfs.wasb that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	WasbUnderFileSystemFactory.create(String path, UnderFileSystemConfiguration conf)

Uses of UnderFileSystem in alluxio.util

Methods in alluxio.util with parameters of type UnderFileSystem

Modifier and Type	Method and Description
static void	UnderFileSystemUtils.deleteDirIfExists(UnderFileSystem ufs, String path) Deletes the directory at the given path if it exists.
static void	UnderFileSystemUtils.deleteFileIfExists(UnderFileSystem ufs, String path) Deletes the specified path from the specified under file system if it is a file and exists.
static boolean	UnderFileSystemUtils.isCephFS(UnderFileSystem ufs)
static boolean	UnderFileSystemUtils.isGcs(UnderFileSystem ufs)
static boolean	UnderFileSystemUtils.isHdfs(UnderFileSystem ufs)
static boolean	UnderFileSystemUtils.isLocal(UnderFileSystem ufs)
static boolean	UnderFileSystemUtils.isOss(UnderFileSystem ufs)
static boolean	UnderFileSystemUtils.isS3(UnderFileSystem ufs)
static boolean	UnderFileSystemUtils.isWeb(UnderFileSystem ufs)
static void	UnderFileSystemUtils.mkdirIfNotExists(UnderFileSystem ufs, String path) Attempts to create the directory if it does not already exist.
static void	UnderFileSystemUtils.touch(UnderFileSystem ufs, String path) Creates an empty file.

Uses of UnderFileSystem in alluxio.worker.dora

Methods in alluxio.worker.dora that return UnderFileSystem

Modifier and Type	Method and Description
protected UnderFileSystem	PagedDoraWorker.getUfsInstance(String ufsUriStr)
protected UnderFileSystem	PagedDoraWorker.getUnderFileSystem(String ufsPath)

Methods in alluxio.worker.dora with parameters of type UnderFileSystem

Modifier and Type	Method and Description
protected void	DoraUfsManager.connectUfs(UnderFileSystem fs)
static PagedFileReader	PagedFileReader.create(AlluxioConfiguration conf, CacheManager cacheManager, UnderFileSystem ufs, String fileId, String ufsPath, long fileSize, long startPosition) Creates a new PagedFileReader.

Uses of UnderFileSystem in alluxio.worker.grpc

Methods in alluxio.worker.grpc that return types with arguments of type UnderFileSystem

Modifier and Type	Method and Description
CloseableResource<UnderFileSystem>	UfsFileWriteRequestContext.getUfsResource()

Method parameters in alluxio.worker.grpc with type arguments of type UnderFileSystem

Modifier and Type	Method and Description
void	UfsFileWriteRequestContext.setUfsResource(CloseableResource<UnderFileSystem> ufsResource)

Uses of UnderFileSystem in alluxio.worker.netty

Methods in alluxio.worker.netty that return UnderFileSystem

Modifier and Type	Method and Description
UnderFileSystem	UfsFileWriteRequestContext.getUnderFileSystem()

Methods in alluxio.worker.netty with parameters of type UnderFileSystem

Modifier and Type	Method and Description
void	UfsFileWriteRequestContext.setUnderFileSystem(UnderFileSystem underFileSystem)