com.upplication.s3fs

Class S3SeekableByteChannel

java.lang.Object

com.upplication.s3fs.S3SeekableByteChannel

All Implemented Interfaces:

Closeable, AutoCloseable, ByteChannel, Channel, ReadableByteChannel, SeekableByteChannel, WritableByteChannel

public class S3SeekableByteChannel
extends Object
implements SeekableByteChannel

Constructor Summary

Constructors

Constructor and Description
S3SeekableByteChannel(S3Path path, Set<? extends OpenOption> options) Open or creates a file, returning a seekable byte channel

Method Summary

Modifier and Type	Method and Description
void	close()
boolean	isOpen()
long	position()
SeekableByteChannel	position(long newPosition)
int	read(ByteBuffer dst)
long	size()
protected void	sync() try to sync the temp file with the remote s3 path.
SeekableByteChannel	truncate(long size)
int	write(ByteBuffer src)

Methods inherited from class java.lang.Object

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

Constructor Detail

S3SeekableByteChannel

public S3SeekableByteChannel(S3Path path,
                             Set<? extends OpenOption> options)
                      throws IOException

Open or creates a file, returning a seekable byte channel

Parameters:

path - the path open or create

options - options specifying how the file is opened

Throws:

IOException - if an I/O error occurs

Method Detail

isOpen

public boolean isOpen()

Specified by:

isOpen in interface Channel

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Channel

Throws:

IOException

sync

protected void sync()
             throws IOException

try to sync the temp file with the remote s3 path.

Throws:

IOException - if the tempFile fails to open a newInputStream

write

public int write(ByteBuffer src)
          throws IOException

Specified by:

write in interface SeekableByteChannel

Specified by:

write in interface WritableByteChannel

Throws:

IOException

truncate

public SeekableByteChannel truncate(long size)
                             throws IOException

Specified by:

truncate in interface SeekableByteChannel

Throws:

IOException

size

public long size()
          throws IOException

Specified by:

size in interface SeekableByteChannel

Throws:

IOException

read

public int read(ByteBuffer dst)
         throws IOException

Specified by:

read in interface ReadableByteChannel

Specified by:

read in interface SeekableByteChannel

Throws:

IOException

position

public SeekableByteChannel position(long newPosition)
                             throws IOException

Specified by:

position in interface SeekableByteChannel

Throws:

IOException

position

public long position()
              throws IOException

Specified by:

position in interface SeekableByteChannel

Throws:

IOException