org.apache.commons.compress.archivers.zip

Class BitStream

java.lang.Object

org.apache.commons.compress.utils.BitInputStream

org.apache.commons.compress.archivers.zip.BitStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

class BitStream
extends BitInputStream

Iterates over the bits of an InputStream. For each byte the bits are read from the right to the left.

Since:

1.7

Constructor Summary

Constructors

Constructor and Description
BitStream(java.io.InputStream in)

Method Summary

Modifier and Type	Method and Description
(package private) int	nextBit() Returns the next bit.
(package private) long	nextBits(int n) Returns the integer value formed by the n next bits (up to 8 bits).
(package private) int	nextByte()

Methods inherited from class org.apache.commons.compress.utils.BitInputStream

alignWithByteBoundary, bitsAvailable, bitsCached, clearBitCache, close, getBytesRead, readBits

Methods inherited from class java.lang.Object

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

Constructor Detail

BitStream

BitStream(java.io.InputStream in)

Method Detail

nextBit

int nextBit()
     throws java.io.IOException

Returns the next bit.

Returns:

The next bit (0 or 1) or -1 if the end of the stream has been reached

Throws:

java.io.IOException

nextBits

long nextBits(int n)
       throws java.io.IOException

Returns the integer value formed by the n next bits (up to 8 bits).

Parameters:

n - the number of bits read (up to 8)

Returns:

The value formed by the n bits, or -1 if the end of the stream has been reached

Throws:

java.io.IOException

nextByte

int nextByte()
      throws java.io.IOException

Throws:

java.io.IOException