com.partnersoft.formats.base64
Class Base64InputStream

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          com.partnersoft.formats.base64.Base64InputStream

All Implemented Interfaces:

java.io.Closeable

public class Base64InputStream
extends java.io.FilterInputStream

InputStream implementation to decode Base64-encoded binary data.

Much of this class was derived from v2.0.1 source published by Robert Harder at http://iharder.net/base64 and placed in the public domain. Source for this package is available on request from Partner.

Copyright 1997-2006 Partner Software, Inc.

Version:

$Id: Base64InputStream.java 1012 2007-11-24 18:30:02Z paul $

Author:

Robert Harder, Paul Reavis, Russell Cagle

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Base64InputStream(java.io.InputStream in)
Constructs a Base64InputStream.

Method Summary

int	read() Reads enough of the input stream to convert from Base64 and returns the next byte.
int	read(byte[] dest, int off, int len) Calls read() repeatedly until the end of stream is reached or len bytes are read.

Methods inherited from class java.io.FilterInputStream

available, close, mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

Base64InputStream

public Base64InputStream(java.io.InputStream in)

Constructs a Base64InputStream.

Parameters:

in - the InputStream from which to read Base64 data.

Method Detail

read

public int read()
         throws java.io.IOException

Reads enough of the input stream to convert from Base64 and returns the next byte.

Overrides:

read in class java.io.FilterInputStream

Returns:

next byte

Throws:

java.io.IOException

read

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

Calls read() repeatedly until the end of stream is reached or len bytes are read. Returns number of bytes read into array or -1 if end of stream is encountered.

Overrides:

read in class java.io.FilterInputStream

Parameters:

dest - array to hold values

off - offset for array

len - max number of bytes to read into array

Returns:

bytes read into array or -1 if end of stream is encountered.

Throws:

java.io.IOException