Master of Science thesis Fighting Spam

else
{
// When JDK1.4 is more accepted, use an assertion here.
throw new java.io.IOException( "Error in Base64 code reading stream." );
} // end else
} // end read
/**
* Calls {@link #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.
*
* @param dest array to hold values
* @param off offset for array
* @param len max number of bytes to read into array
* @return bytes read into array or -1 if end of stream is encountered.
* @since 1.3
*/
public int read( byte[] dest, int off, int len ) throws java.io.IOException
{
int i;
int b;
for( i = 0; i < len; i++ )
{
b = read();
//if( b < 0 && i == 0 )
// return -1;
if( b >= 0 )
dest[off + i] = (byte)b;
else if( i == 0 )
return -1;
else
break; // Out of 'for' loop
} // end for: each byte read
return i;
} // end read
} // end inner class InputStream
/* ******** I N N E R C L A S S O U T P U T S T R E A M ******** */
/**
* A {@link Base64.OutputStream} will write data to another
* java.io.OutputStream, given in the constructor,
* and encode/decode to/from Base64 notation on the fly.
*
* @see Base64
* @since 1.3
*/
public static class OutputStream extends java.io.FilterOutputStream
{
private boolean encode;
private int position;
private byte[] buffer;
private int bufferLength;
private int lineLength;
private boolean breakLines;
private byte[] b4; // Scratch used in a few places
private boolean suspendEncoding;
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