alluxio.underfs

Class UnderFileSystem.Factory

java.lang.Object

alluxio.underfs.UnderFileSystem.Factory

Enclosing interface:

UnderFileSystem

public static class UnderFileSystem.Factory
extends Object

The factory for the UnderFileSystem.

Method Summary

Modifier and Type	Method and Description
static UnderFileSystem	create(String path) Creates the UnderFileSystem instance according to its UFS path.
static UnderFileSystem	create(String path, UnderFileSystemConfiguration ufsConf) Creates a client for operations involved with the under file system.
static UnderFileSystem	create(URI path) Creates the UnderFileSystem instance according to its UFS path.
static UnderFileSystem	createForRoot()

Methods inherited from class java.lang.Object

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

Method Detail

create

public static UnderFileSystem create(String path)

Creates the UnderFileSystem instance according to its UFS path. This method should only be used for journal operations and tests.

Parameters:

path - the file path storing over the ufs

Returns:

instance of the under layer file system

create

public static UnderFileSystem create(URI path)

Creates the UnderFileSystem instance according to its UFS path. This method should only be used for journal operations and tests.

Parameters:

path - journal path in ufs

Returns:

the instance of under file system for Alluxio journal directory

create

public static UnderFileSystem create(String path,
                                     UnderFileSystemConfiguration ufsConf)

Creates a client for operations involved with the under file system. An IllegalArgumentException is thrown if there is no under file system for the given path or if no under file system could successfully be created.

Parameters:

path - path

ufsConf - optional configuration object for the UFS, may be null

Returns:

client for the under file system

createForRoot

public static UnderFileSystem createForRoot()

Returns:

the instance of under file system for Alluxio root directory