com.day.durbo.io

Class ChunkedDeflaterOutputStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

java.util.zip.DeflaterOutputStream

com.day.durbo.io.ChunkedDeflaterOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

public class ChunkedDeflaterOutputStream
extends java.util.zip.DeflaterOutputStream

ChunkedDeflaterOutputStream extends a DeflaterOutputStream than can be restarted. when the stream is restarted the compression is finished and the internal deflater is reset. this means that the underlying output stream can consist of several overlaid compressed chunks. an InflaterInputStream would signal EOF when the end of such a chunk is reached although the underlying stream is not finished. use ChunkedInflaterInputStream or the RegionFileInputStream which can deal with such streams.

Constructor Summary

Constructors

Constructor and Description
ChunkedDeflaterOutputStream(java.io.OutputStream out)
ChunkedDeflaterOutputStream(java.io.OutputStream out, java.util.zip.Deflater def)
ChunkedDeflaterOutputStream(java.io.OutputStream out, java.util.zip.Deflater def, int size)

Method Summary

Modifier and Type	Method and Description
long	restart() Restarts the compression.
void	setAutoRestart(long len) Sets the number of written bytes after which the compression should be restarted.
void	write(byte[] b, int off, int len)

Methods inherited from class java.util.zip.DeflaterOutputStream

close, finish, flush, write

Methods inherited from class java.io.FilterOutputStream

write

Methods inherited from class java.lang.Object

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

Constructor Detail

ChunkedDeflaterOutputStream

public ChunkedDeflaterOutputStream(java.io.OutputStream out)

ChunkedDeflaterOutputStream

public ChunkedDeflaterOutputStream(java.io.OutputStream out,
                                   java.util.zip.Deflater def)

ChunkedDeflaterOutputStream

public ChunkedDeflaterOutputStream(java.io.OutputStream out,
                                   java.util.zip.Deflater def,
                                   int size)

Method Detail

restart

public long restart()
             throws java.io.IOException

Restarts the compression. i.e. flushes all compressed data and resets the deflater.

Returns:

the number of bytes that were transferred to the underlying stream.

Throws:

java.io.IOException - if an I/O error occurs

write

public void write(byte[] b,
                  int off,
                  int len)
           throws java.io.IOException

Overrides:

write in class java.util.zip.DeflaterOutputStream

Throws:

java.io.IOException

setAutoRestart

public void setAutoRestart(long len)

Sets the number of written bytes after which the compression should be restarted.

Parameters:

len - the number of bytes