com.compoze.util
Class Base64InputStream

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          com.compoze.util.Base64InputStream

All Implemented Interfaces:

java.io.Closeable

public class Base64InputStream
extends java.io.FilterInputStream

This class provides an implementation of a Base 64 decoder in the form of an extension of FilterOutputStream. It is based on the implementation of BASE64DecoderStream from Sun's JDK utility classes.

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Base64InputStream(java.io.InputStream inputstream)
Constructor.

Method Summary

int	available() Gets the number of bytes that are available to read.
void	decode() Decodes the buffer.
static byte[]	decode(byte[] abyte0) Decodes a buffer.
boolean	markSupported() Determines if mark is supported.
int	read() Reads a byte.
int	read(byte[] abyte0, int i, int j) Reads bytes.

Methods inherited from class java.io.FilterInputStream

close, mark, 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 inputstream)

Constructor.

Parameters:

inputstream - the underlying InputStream

Method Detail

read

public int read()
         throws java.io.IOException

Reads a byte.

Overrides:

read in class java.io.FilterInputStream

Returns:

the byte that was read, or -1 if the end of the stream has been reached

Throws:

java.io.IOException - if an i/o error occurred

read

public int read(byte[] abyte0,
                int i,
                int j)
         throws java.io.IOException

Reads bytes.

Overrides:

read in class java.io.FilterInputStream

Parameters:

abyte0 - the buffer to read into

i - the offset into the array

j - the length to read

Returns:

the number of bytes that were read, or -1 if the end of the stream has been reached

Throws:

java.io.IOException - if an i/o error occurred

markSupported

public boolean markSupported()

Determines if mark is supported. It's not.

Overrides:

markSupported in class java.io.FilterInputStream

Returns:

false

available

public int available()
              throws java.io.IOException

Gets the number of bytes that are available to read.

Overrides:

available in class java.io.FilterInputStream

Throws:

java.io.IOException - if an i/o error occurred

decode

public void decode()
            throws java.io.IOException

Decodes the buffer.

Throws:

java.io.IOException - if an i/o error occurred

decode

public static byte[] decode(byte[] abyte0)

Decodes a buffer.