org.jets3t.service.io

Class GZipDeflatingInputStream

java.lang.Object

java.io.InputStream

org.jets3t.service.io.GZipDeflatingInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, InputStreamWrapper

public class GZipDeflatingInputStream
extends java.io.InputStream
implements InputStreamWrapper

Input stream that wraps another stream and deflates (compresses) the underlying stream's data on-the-fly. This class provides only a basic implementation of GZip functionality.

Field Summary

Fields

Modifier and Type	Field and Description
private byte[]	buffer
private int	BUFFER_SIZE
(package private) int	bufferEnd
(package private) int	bufferOffset
private java.util.zip.CRC32	crc
private byte[]	deflatedBytes
(package private) java.util.zip.Deflater	deflater
(package private) boolean	EOFDeflated
(package private) boolean	EOFInput
(package private) boolean	EOFTail
private java.io.InputStream	inputStream

Constructor Summary

Constructors

Constructor and Description
GZipDeflatingInputStream(java.io.InputStream inputStream)

Method Summary

Modifier and Type	Method and Description
int	available()
void	close()
private int	getDeflatedBufferAvail()
java.io.InputStream	getWrappedInputStream()
private void	primeDeflateBuffer()
int	read()
int	read(byte[] b, int off, int len)
private void	writeInt(int i)
private void	writeShort(int s)

Methods inherited from class java.io.InputStream

mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Field Detail

BUFFER_SIZE

private int BUFFER_SIZE

deflater

java.util.zip.Deflater deflater

inputStream

private java.io.InputStream inputStream

buffer

private byte[] buffer

deflatedBytes

private byte[] deflatedBytes

crc

private java.util.zip.CRC32 crc

bufferOffset

int bufferOffset

bufferEnd

int bufferEnd

EOFInput

boolean EOFInput

EOFDeflated

boolean EOFDeflated

EOFTail

boolean EOFTail

Constructor Detail

GZipDeflatingInputStream

public GZipDeflatingInputStream(java.io.InputStream inputStream)
                         throws java.io.IOException

Throws:

java.io.IOException

Method Detail

primeDeflateBuffer

private void primeDeflateBuffer()
                         throws java.io.IOException

Throws:

java.io.IOException

getDeflatedBufferAvail

private int getDeflatedBufferAvail()

read

public int read()
         throws java.io.IOException

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

read

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

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

available

public int available()
              throws java.io.IOException

Overrides:

available in class java.io.InputStream

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.InputStream

Throws:

java.io.IOException

getWrappedInputStream

public java.io.InputStream getWrappedInputStream()

Specified by:

getWrappedInputStream in interface InputStreamWrapper

Returns:

the underlying input stream wrapped by this class.

writeInt

private void writeInt(int i)

writeShort

private void writeShort(int s)