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, AlluxioConfiguration conf) 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	createForRoot(AlluxioConfiguration conf)
static UnderFileSystem	createWithRecorder(String path, UnderFileSystemConfiguration ufsConf, Recorder recorder) Creates a client for operations involved with the under file system and record the execution process.

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,
                                     AlluxioConfiguration conf)

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

conf - the configuration object w/o mount specific options

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 - configuration object for the UFS

Returns:

client for the under file system

createWithRecorder

public static UnderFileSystem createWithRecorder(String path,
                                                 UnderFileSystemConfiguration ufsConf,
                                                 Recorder recorder)

Creates a client for operations involved with the under file system and record the execution process. 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 - configuration object for the UFS

recorder - recorder used to record the detailed execution process

Returns:

client for the under file system

createForRoot

public static UnderFileSystem createForRoot(AlluxioConfiguration conf)

Parameters:

conf - configuration

Returns:

the instance of under file system for Alluxio root directory