alluxio.fuse

Class AlluxioFuseUtils

java.lang.Object

alluxio.fuse.AlluxioFuseUtils

@ThreadSafe
public final class AlluxioFuseUtils
extends java.lang.Object

Utility methods for Alluxio-FUSE.

Method Summary

Modifier and Type	Method and Description
static int	getErrorCode(java.lang.Throwable t) Gets the corresponding error code of a throwable.
static long	getGid(java.lang.String userName) Retrieves the primary gid of the given user.
static long	getGidFromGroupName(java.lang.String groupName) Retrieves the gid of the given group.
static java.lang.String	getGroupName(long gid) Gets the group name from the group id.
static java.lang.String	getGroupName(java.lang.String userName) Gets the primary group name from the user name.
static long	getUid(java.lang.String userName) Retrieves the uid of the given user.
static java.lang.String	getUserName(long uid) Gets the user name from the user id.
static boolean	isFuseInstalled() Checks whether fuse is installed in local file system.

Methods inherited from class java.lang.Object

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

Method Detail

getUid

public static long getUid(java.lang.String userName)

Retrieves the uid of the given user.

Parameters:

userName - the user name

Returns:

uid

getGid

public static long getGid(java.lang.String userName)

Retrieves the primary gid of the given user.

Parameters:

userName - the user name

Returns:

gid

getGidFromGroupName

public static long getGidFromGroupName(java.lang.String groupName)
                                throws java.io.IOException

Retrieves the gid of the given group.

Parameters:

groupName - the group name

Returns:

gid

Throws:

java.io.IOException

getUserName

public static java.lang.String getUserName(long uid)
                                    throws java.io.IOException

Gets the user name from the user id.

Parameters:

uid - user id

Returns:

user name

Throws:

java.io.IOException

getGroupName

public static java.lang.String getGroupName(java.lang.String userName)
                                     throws java.io.IOException

Gets the primary group name from the user name.

Parameters:

userName - the user name

Returns:

group name

Throws:

java.io.IOException

getGroupName

public static java.lang.String getGroupName(long gid)
                                     throws java.io.IOException

Gets the group name from the group id.

Parameters:

gid - the group id

Returns:

group name

Throws:

java.io.IOException

isFuseInstalled

public static boolean isFuseInstalled()

Checks whether fuse is installed in local file system. Alluxio-Fuse only support mac and linux.

Returns:

true if fuse is installed, false otherwise

getErrorCode

public static int getErrorCode(java.lang.Throwable t)

Gets the corresponding error code of a throwable.

Parameters:

t - throwable

Returns:

the corresponding error code