agilermi.communication.gzip

Class ConitnuousGzipOutputStream

java.lang.Object

java.io.OutputStream

agilermi.communication.gzip.ConitnuousGzipOutputStream

All Implemented Interfaces:

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

public final class ConitnuousGzipOutputStream
extends java.io.OutputStream

This class uses the GZIPOutputStream of the standard JDK to implement a continuous buffered output stream for data compression. This stream does not need you to invoke a finish() method as the GZIPOutputStream do. This stream is usable just as any other stream decorator with the basic methods write(int), flush(), close() and so on. To reach its goal, this class buffers the data bytes and compresses them per blocks.

Author:

Salvatore Giampa'

Constructor Summary

Constructors

Constructor and Description
ConitnuousGzipOutputStream(java.io.OutputStream output, int bufferSize) Build a new compression stream with the specified buffer size.

Method Summary

Modifier and Type	Method and Description
void	close()
void	flush()
int	getBufferSize()
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class java.io.OutputStream

write

Methods inherited from class java.lang.Object

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

Constructor Detail

ConitnuousGzipOutputStream

public ConitnuousGzipOutputStream(java.io.OutputStream output,
                                  int bufferSize)

Build a new compression stream with the specified buffer size. The buffer size is the max number of data bytes that can be buffered before the next block compression.

Parameters:

output - the underlying output stream

bufferSize - the size of the compression window

Method Detail

getBufferSize

public int getBufferSize()

write

public void write(int b)
           throws java.io.IOException

Specified by:

write in class java.io.OutputStream

Throws:

java.io.IOException

write

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

Overrides:

write in class java.io.OutputStream

Throws:

java.io.IOException

flush

public void flush()
           throws java.io.IOException

Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class java.io.OutputStream

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.OutputStream

Throws:

java.io.IOException