alluxio.fuse

Class AlluxioJniFuseFileSystem

java.lang.Object

alluxio.jnifuse.AbstractFuseFileSystem

alluxio.fuse.AlluxioJniFuseFileSystem

All Implemented Interfaces:

FuseFileSystem

@ThreadSafe
public final class AlluxioJniFuseFileSystem
extends AbstractFuseFileSystem

Main FUSE implementation class.

Implements the FUSE callbacks defined by jni-fuse.

Field Summary

Fields

Modifier and Type	Field and Description
static long	ID_NOT_SET_VALUE
static long	ID_NOT_SET_VALUE_UNSIGNED
static int	MAX_NAME_LENGTH Most FileSystems on linux limit the length of file name beyond 255 characters.
static int	UNKNOWN_INODES df command will treat -1 as an unknown value.

Constructor Summary

Constructors

Constructor and Description
AlluxioJniFuseFileSystem(FileSystem fs, AlluxioFuseOptions opts, AlluxioConfiguration conf) Creates a new instance of AlluxioJniFuseFileSystem.

Method Summary

Modifier and Type	Method and Description
int	chmod(String path, long mode)
int	chown(String path, long uid, long gid)
int	create(String path, long mode, FuseFileInfo fi)
int	flush(String path, FuseFileInfo fi)
int	getattr(String path, FileStat stat)
String	getFileSystemName()
int	mkdir(String path, long mode)
int	open(String path, FuseFileInfo fi)
int	read(String path, ByteBuffer buf, long size, long offset, FuseFileInfo fi)
int	readdir(String path, long buff, FuseFillDir filter, long offset, FuseFileInfo fi)
int	release(String path, FuseFileInfo fi)
int	rename(String oldPath, String newPath)
int	rmdir(String path)
int	truncate(String path, long size)
int	unlink(String path)
int	write(String path, ByteBuffer buf, long size, long offset, FuseFileInfo fi)

Methods inherited from class alluxio.jnifuse.AbstractFuseFileSystem

chmodCallback, chownCallback, createCallback, flushCallback, getattrCallback, getLibFuse, mkdirCallback, mount, openCallback, readCallback, readdirCallback, releaseCallback, renameCallback, rmdirCallback, statfsCallback, truncateCallback, umount, unlinkCallback, writeCallback

Methods inherited from class java.lang.Object

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

Methods inherited from interface alluxio.jnifuse.FuseFileSystem

getContext, link, opendir, releasedir, statfs, symlink

Field Detail

ID_NOT_SET_VALUE

public static final long ID_NOT_SET_VALUE

See Also:

Constant Field Values

ID_NOT_SET_VALUE_UNSIGNED

public static final long ID_NOT_SET_VALUE_UNSIGNED

See Also:

Constant Field Values

UNKNOWN_INODES

public static final int UNKNOWN_INODES

df command will treat -1 as an unknown value.

See Also:

Constant Field Values

MAX_NAME_LENGTH

public static final int MAX_NAME_LENGTH

Most FileSystems on linux limit the length of file name beyond 255 characters.

See Also:

Constant Field Values

Constructor Detail

AlluxioJniFuseFileSystem

public AlluxioJniFuseFileSystem(FileSystem fs,
                                AlluxioFuseOptions opts,
                                AlluxioConfiguration conf)

Creates a new instance of AlluxioJniFuseFileSystem.

Parameters:

fs - Alluxio file system

opts - options

conf - Alluxio configuration

Method Detail

create

public int create(String path,
                  long mode,
                  FuseFileInfo fi)

getattr

public int getattr(String path,
                   FileStat stat)

readdir

public int readdir(String path,
                   long buff,
                   FuseFillDir filter,
                   long offset,
                   FuseFileInfo fi)

open

public int open(String path,
                FuseFileInfo fi)

read

public int read(String path,
                ByteBuffer buf,
                long size,
                long offset,
                FuseFileInfo fi)

write

public int write(String path,
                 ByteBuffer buf,
                 long size,
                 long offset,
                 FuseFileInfo fi)

flush

public int flush(String path,
                 FuseFileInfo fi)

release

public int release(String path,
                   FuseFileInfo fi)

mkdir

public int mkdir(String path,
                 long mode)

unlink

public int unlink(String path)

rmdir

public int rmdir(String path)

rename

public int rename(String oldPath,
                  String newPath)

chmod

public int chmod(String path,
                 long mode)

chown

public int chown(String path,
                 long uid,
                 long gid)

truncate

public int truncate(String path,
                    long size)

getFileSystemName

public String getFileSystemName()

Returns:

Name of the file system