Package com.twelvemonkeys.io.enc
Class Base64Decoder
- java.lang.Object
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- com.twelvemonkeys.io.enc.Base64Decoder
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- All Implemented Interfaces:
Decoder
public final class Base64Decoder extends java.lang.Object implements Decoder
Decoder
implementation for standard base64 encoding.- Version:
- $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/main/java/com/twelvemonkeys/io/enc/Base64Decoder.java#2 $
- See Also:
- RFC 1421,
RFC 2045,
Base64Encoder
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Field Summary
Fields Modifier and Type Field Description private byte[]
decodeBuffer
(package private) static byte[]
PEM_ARRAY
This array maps the characters to their 6 bit values(package private) static byte[]
PEM_CONVERT_ARRAY
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Constructor Summary
Constructors Constructor Description Base64Decoder()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description int
decode(java.io.InputStream stream, java.nio.ByteBuffer buffer)
Decodes up tobuffer.length
bytes from the given input stream, into the given buffer.protected boolean
decodeAtom(java.io.InputStream pInput, java.nio.ByteBuffer pOutput, int pLength)
protected static int
readFully(java.io.InputStream pStream, byte[] pBytes, int pOffset, int pLength)
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Method Detail
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readFully
protected static int readFully(java.io.InputStream pStream, byte[] pBytes, int pOffset, int pLength) throws java.io.IOException
- Throws:
java.io.IOException
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decodeAtom
protected boolean decodeAtom(java.io.InputStream pInput, java.nio.ByteBuffer pOutput, int pLength) throws java.io.IOException
- Throws:
java.io.IOException
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decode
public int decode(java.io.InputStream stream, java.nio.ByteBuffer buffer) throws java.io.IOException
Description copied from interface:Decoder
Decodes up tobuffer.length
bytes from the given input stream, into the given buffer.- Specified by:
decode
in interfaceDecoder
- Parameters:
stream
- the input stream to decode data frombuffer
- buffer to store the read data- Returns:
- the total number of bytes read into the buffer, or
0
if there is no more data because the end of the stream has been reached. - Throws:
DecodeException
- if encoded data is corrupt.java.io.IOException
- if an I/O error occurs.java.io.EOFException
- if a premature end-of-file is encountered.
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