org.apache.axiom.util.base64

Class AbstractBase64DecodingWriter

java.lang.Object

java.io.Writer

org.apache.axiom.util.base64.AbstractBase64DecodingWriter

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.Appendable, java.lang.AutoCloseable

Direct Known Subclasses:

Base64DecodingOutputStreamWriter

public abstract class AbstractBase64DecodingWriter
extends java.io.Writer

Base class for Writer implementations that decode data in base64.

Field Summary

Fields

Modifier and Type	Field and Description
private char[]	in
private byte[]	out
private int	rest

Fields inherited from class java.io.Writer

lock

Constructor Summary

Constructors

Constructor and Description
AbstractBase64DecodingWriter()

Method Summary

Modifier and Type	Method and Description
private int	decode(char c)
private void	decode(char[] data, int off)
protected abstract void	doWrite(byte[] b, int len) Write base64 decoded data.
private static boolean	isWhitespace(int c)
void	write(char[] cbuf, int off, int len)
void	write(int c)
void	write(java.lang.String str, int off, int len)

Methods inherited from class java.io.Writer

append, append, append, close, flush, write, write

Methods inherited from class java.lang.Object

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

Field Detail

in

private final char[] in

out

private final byte[] out

rest

private int rest

Constructor Detail

AbstractBase64DecodingWriter

public AbstractBase64DecodingWriter()

Method Detail

isWhitespace

private static boolean isWhitespace(int c)

write

public final void write(char[] cbuf,
                        int off,
                        int len)
                 throws java.io.IOException

Specified by:

write in class java.io.Writer

Throws:

java.io.IOException

write

public final void write(java.lang.String str,
                        int off,
                        int len)
                 throws java.io.IOException

Overrides:

write in class java.io.Writer

Throws:

java.io.IOException

write

public final void write(int c)
                 throws java.io.IOException

Overrides:

write in class java.io.Writer

Throws:

java.io.IOException

decode

private int decode(char c)
            throws java.io.IOException

Throws:

java.io.IOException

decode

private void decode(char[] data,
                    int off)
             throws java.io.IOException

Throws:

java.io.IOException

doWrite

protected abstract void doWrite(byte[] b,
                                int len)
                         throws java.io.IOException

Write base64 decoded data. If necessary, the implementation should accumulate the data in a buffer before writing it to the underlying stream. The maximum number of bytes passed to this method in a single call is 3.

Parameters:

b - the byte array containing the data to write, starting at offset 0

len - the number of bytes to write

Throws:

java.io.IOException - if an I/O error occurs