org.apache.batik.util
Class Base64DecodeStream

java.lang.Object
  |
  +--java.io.InputStream
        |
        +--org.apache.batik.util.Base64DecodeStream

public class Base64DecodeStream

extends java.io.InputStream

This class implements a Base64 Character decoder as specified in RFC1113. Unlike some other encoding schemes there is nothing in this encoding that tells the decoder where a buffer starts or stops, so to use it you will need to isolate your encoded data into a single chunk and then feed them this decoder. The simplest way to do that is to read all of the encoded data into a string and then use:

      byte    data[];
      InputStream is = new ByteArrayInputStream(data);
      is = new Base64DecodeStream(is);
 

On errors, this class throws a IOException with the following detail strings:

    "Base64DecodeStream: Bad Padding byte (2)."
    "Base64DecodeStream: Bad Padding byte (1)."
 

Constructor Summary

Base64DecodeStream(java.io.InputStream src)

Method Summary

int	available()
void	close()
boolean	markSupported()
int	read()
int	read(byte[] out, int offset, int len)

Methods inherited from class java.io.InputStream

mark, read, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

Base64DecodeStream

public Base64DecodeStream(java.io.InputStream src)

Method Detail

markSupported

public boolean markSupported()

Overrides:

markSupported in class java.io.InputStream

close

public void close()
           throws java.io.IOException

Overrides:

close in class java.io.InputStream

available

public int available()
              throws java.io.IOException

Overrides:

available in class java.io.InputStream

read

public int read()
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

read

public int read(byte[] out,
                int offset,
                int len)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream