org.gcube.indexmanagement.common
Class DecompressingInputStream

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          org.gcube.indexmanagement.common.DecompressingInputStream

All Implemented Interfaces:

Closeable

public class DecompressingInputStream
extends FilterInputStream

An InputStream used to read LZW compressed data written by a CompressingOutputStream. See http://en.wikipedia.org/wiki/LZW for an explanation of the algorithm.

Version:

0.1

See Also:

CompressingOutputStream

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

DecompressingInputStream(InputStream in)
Constructor which wraps an input stream, and initializes the code map with all possible values of a single byte, before increasing the codesize to the size of one byte + 1 to make place for the next code

Method Summary

void	mark(int i)
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
void	reset()
long	skip(long n)

Methods inherited from class java.io.FilterInputStream

available, close, markSupported

Methods inherited from class java.lang.Object

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

Constructor Detail

DecompressingInputStream

public DecompressingInputStream(InputStream in)

Constructor which wraps an input stream, and initializes the code map with all possible values of a single byte, before increasing the codesize to the size of one byte + 1 to make place for the next code

Parameters:

in - - the input stream to read the compressed data from

Method Detail

read

public int read()
         throws IOException

Overrides:

read in class FilterInputStream

Throws:

IOException

read

public int read(byte[] b)
         throws IOException

Overrides:

read in class FilterInputStream

Throws:

IOException

read

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

Overrides:

read in class FilterInputStream

Throws:

IOException

mark

public void mark(int i)

Overrides:

mark in class FilterInputStream

reset

public void reset()
           throws IOException

Overrides:

reset in class FilterInputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class FilterInputStream

Throws:

IOException