org.gcube.indexmanagement.common
Class CompressingOutputStream

java.lang.Object
  java.io.OutputStream
      java.io.FilterOutputStream
          org.gcube.indexmanagement.common.CompressingOutputStream

All Implemented Interfaces:

Closeable, Flushable

public class CompressingOutputStream
extends FilterOutputStream

An OutputStream used to output LZW compressed data. See http://en.wikipedia.org/wiki/LZW for an explanation of the algorithm.

Version:

0.1

See Also:

DecompressingInputStream

Field Summary

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

CompressingOutputStream(OutputStream out)
Constructor which wraps an output 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	close()
void	write(byte[] bytes)
void	write(byte[] bytes, int off, int len)
void	write(int b)

Methods inherited from class java.io.FilterOutputStream

flush

Methods inherited from class java.lang.Object

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

Constructor Detail

CompressingOutputStream

public CompressingOutputStream(OutputStream out)

Constructor which wraps an output 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:

out - - the output stream to output the results trough

Method Detail

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Overrides:

close in class FilterOutputStream

Throws:

IOException

write

public void write(byte[] bytes)
           throws IOException

Overrides:

write in class FilterOutputStream

Throws:

IOException

write

public void write(byte[] bytes,
                  int off,
                  int len)
           throws IOException

Overrides:

write in class FilterOutputStream

Throws:

IOException

write

public void write(int b)
           throws IOException

Overrides:

write in class FilterOutputStream

Throws:

IOException