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ClassLib.Common.java.util.zip
Class StreamManipulator  

java.lang.Object
  ClassLib.Common.java.util.zip.StreamManipulator

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class StreamManipulator

extends java.lang.Object

StreamManipulator

Version:

$Id: StreamManipulator.java,v 1.4 2003/05/12 10:04:53 joewhaley Exp $

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Field Summary
private  int	bits_in_buffer
private  int	buffer
private  byte[]	window
private  int	window_end
private  int	window_start

 

Constructor Summary

StreamManipulator()

 

Method Summary
int	copyBytes(byte[] output, int offset, int length)
void	dropBits(int n)
int	getAvailableBits()           Gets the number of bits available in the bit buffer.
int	getAvailableBytes()           Gets the number of bytes available.
int	getBits(int n)           Gets the next n bits and increases input pointer.
boolean	needsInput()
int	peekBits(int n)           Get the next n bits but don't increase input pointer.
void	reset()
void	setInput(byte[] buf, int off, int len)
void	skipToByteBoundary()           Skips to the next byte boundary.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

window

private byte[] window

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window_start

private int window_start

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window_end

private int window_end

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buffer

private int buffer

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bits_in_buffer

private int bits_in_buffer

Constructor Detail

StreamManipulator

public StreamManipulator()

Method Detail

peekBits

public final int peekBits(int n)

Get the next n bits but don't increase input pointer. n must be less or equal 16 and if you if this call succeeds, you must drop at least n-8 bits in the next call.

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dropBits

public final void dropBits(int n)

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getBits

public final int getBits(int n)

Gets the next n bits and increases input pointer. This is equivalent to peekBits followed by dropBits, except for correct error handling.

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getAvailableBits

public final int getAvailableBits()

Gets the number of bits available in the bit buffer. This must be only called when a previous peekBits() returned -1.

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getAvailableBytes

public final int getAvailableBytes()

Gets the number of bytes available.

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skipToByteBoundary

public void skipToByteBoundary()

Skips to the next byte boundary.

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needsInput

public final boolean needsInput()

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copyBytes

public int copyBytes(byte[] output,
                     int offset,
                     int length)

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reset

public void reset()

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setInput

public void setInput(byte[] buf,
                     int off,
                     int len)

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> ClassLib >> Common >> java >> util >> [ zip overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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