alluxio.fuse.file

Interface FuseFileStream

All Superinterfaces:

java.lang.AutoCloseable

All Known Implementing Classes:

FuseFileInOrOutStream, FuseFileInStream, FuseFileOutStream

public interface FuseFileStream
extends java.lang.AutoCloseable

This interface should be implemented by all fuse file streams.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	FuseFileStream.Factory Factory for FuseFileInStream.

Method Summary

Modifier and Type	Method and Description
void	close() Closes the stream.
void	flush() Flushes the stream.
long	getFileLength() Gets the file length.
int	read(java.nio.ByteBuffer buf, long size, long offset) Reads data from the stream.
void	truncate(long size) Truncates the file to the given size.
void	write(java.nio.ByteBuffer buf, long size, long offset) Writes data to the stream.

Method Detail

read

int read(java.nio.ByteBuffer buf,
         long size,
         long offset)

Reads data from the stream.

Parameters:

buf - the byte buffer to read data to

size - the size to read

offset - the offset of the target stream to begin reading

Returns:

the bytes read

write

void write(java.nio.ByteBuffer buf,
           long size,
           long offset)

Writes data to the stream.

Parameters:

buf - the byte buffer to read data from and write to the stream

size - the size to write

offset - the offset to write

getFileLength

long getFileLength()

Gets the file length.

Returns:

file length

flush

void flush()

Flushes the stream.

truncate

void truncate(long size)

Truncates the file to the given size.

Parameters:

size - the truncate size

close

void close()

Closes the stream.

Specified by:

close in interface java.lang.AutoCloseable