Package org.epics.archiverappliance.utils.nio.tar

Class TarSeekableByteChannel

java.lang.Object

org.epics.archiverappliance.utils.nio.tar.TarSeekableByteChannel

All Implemented Interfaces:

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

public class TarSeekableByteChannel
extends Object
implements SeekableByteChannel

Wraps a SeekableByteChannel and takes some actions when the channel is closed. For reads, this is mostly cleanup For writes, this updates the tar file and then does cleanup.

Constructor Summary

Constructors

Constructor	Description
TarSeekableByteChannel(Closeable streamToClose, FileChannel proxied, TarEntry tarEntry, TarFileSystem gfs, File fileToAppend, Path deletFileOnClose)

Method Summary

Modifier and Type	Method	Description
void	close()
boolean	isOpen()
long	position()
SeekableByteChannel	position(long newPosition)
int	read(ByteBuffer dst)
long	size()
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 Details

TarSeekableByteChannel

public TarSeekableByteChannel(Closeable streamToClose,
 FileChannel proxied,
 TarEntry tarEntry,
 TarFileSystem gfs,
 File fileToAppend,
 Path deletFileOnClose)

Method Details

isOpen

public boolean isOpen()

Specified by:

isOpen in interface Channel

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Channel

Specified by:

close in interface Closeable

Throws:

IOException

read

public int read(ByteBuffer dst)
         throws IOException

Specified by:

read in interface ReadableByteChannel

Specified by:

read in interface SeekableByteChannel

Throws:

IOException

write

public int write(ByteBuffer src)
          throws IOException

Specified by:

write in interface SeekableByteChannel

Specified by:

write in interface WritableByteChannel

Throws:

IOException

position

public long position()
              throws IOException

Specified by:

position in interface SeekableByteChannel

Throws:

IOException

position

public SeekableByteChannel position(long newPosition)
                             throws IOException

Specified by:

position in interface SeekableByteChannel

Throws:

IOException

size

public long size()
          throws IOException

Specified by:

size in interface SeekableByteChannel

Throws:

IOException

truncate

public SeekableByteChannel truncate(long size)
                             throws IOException

Specified by:

truncate in interface SeekableByteChannel

Throws:

IOException