org.atmosphere.gwt.server.deflate
Class DeflaterOutputStream

java.lang.Object
  java.io.OutputStream
      org.atmosphere.gwt.server.deflate.DeflaterOutputStream

All Implemented Interfaces:

Closeable, Flushable

public class DeflaterOutputStream
extends OutputStream

This class implements a stream which compresses data into the zlib format (RFC 1950).

The compression level can be specified, as a symbolic value identical to what the Deflater class expects. The default compression level is MEDIUM.

Version:

$Revision: 105 $

Author:

Thomas Pornin

Constructor Summary

DeflaterOutputStream(OutputStream out)
Create the stream with the provided transport stream.

DeflaterOutputStream(OutputStream out, int level)
Create the stream with the provided transport stream.

Method Summary

void	close() Close this stream; the transport stream is also closed.
void	flush() Flush this stream; the transport stream is also flushed.
void	write(byte[] buf)
void	write(byte[] buf, int off, int len)
void	write(int b)

Methods inherited from class java.lang.Object

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

Constructor Detail

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out)
                     throws IOException

Create the stream with the provided transport stream. The default compression level (MEDIUM) is used.

Parameters:

out - the transport stream

Throws:

IOException - on I/O error with the transport stream

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out,
                            int level)
                     throws IOException

Create the stream with the provided transport stream. The provided compression level is used.

Parameters:

out - the transport stream

level - the compression level

Throws:

IOException - on I/O error with the transport stream

Method Detail

close

public void close()
           throws IOException

Close this stream; the transport stream is also closed.

Specified by:

close in interface Closeable

Overrides:

close in class OutputStream

Throws:

IOException - on I/O error with the transport stream

flush

public void flush()
           throws IOException

Flush this stream; the transport stream is also flushed. At the DEFLATE level, a "sync flush" is performed, which ensures that output bytes written so far on the transport stream are sufficient to recover all the input bytes currently processed.

Specified by:

flush in interface Flushable

Overrides:

flush in class OutputStream

Throws:

IOException - on I/O error with the transport stream

write

public void write(int b)
           throws IOException

Specified by:

write in class OutputStream

Throws:

IOException

See Also:

OutputStream

write

public void write(byte[] buf)
           throws IOException

Overrides:

write in class OutputStream

Throws:

IOException

See Also:

OutputStream

write

public void write(byte[] buf,
                  int off,
                  int len)
           throws IOException

Overrides:

write in class OutputStream

Throws:

IOException

See Also:

OutputStream