org.apache.cxf.common.util
Class Base64Utility
java.lang.Object
org.apache.cxf.common.util.Base64Utility
public final class Base64Utility
- extends Object
This class converts to/from base64. The alternative conversions include:
encode:
byte[] into String
byte[] into char[]
byte[] into OutStream
byte[] into Writer
decode:
char[] into byte[]
String into byte[]
char[] into OutStream
String into OutStream
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Method Summary |
static void |
decode(char[] id,
int o,
int l,
OutputStream ostream)
|
static byte[] |
decode(String id)
|
static void |
decode(String id,
OutputStream ostream)
|
static byte[] |
decodeChunk(char[] id,
int o,
int l)
The decode_chunk routine decodes a chunk of data
into its native encoding. |
static String |
encode(byte[] id)
|
static void |
encode(byte[] id,
int o,
int l,
Writer writer)
|
static char[] |
encodeChunk(byte[] id,
int o,
int l)
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static void |
encodeChunk(byte[] id,
int o,
int l,
OutputStream ostream)
|
static boolean |
isValidBase64(int ch)
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| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
decodeChunk
public static byte[] decodeChunk(char[] id,
int o,
int l)
throws Base64Exception
- The
decode_chunk routine decodes a chunk of data
into its native encoding.
base64 encodes each 3 octets of data into 4 characters from a
limited 64 character set. The 3 octets are joined to form
24 bits which are then split into 4 x 6bit values. Each 6 bit
value is then used as an index into the 64 character table of
base64 chars. If the total data length is not a 3 octet multiple
the '=' char is used as padding for the final 4 char group,
either 1 octet + '==' or 2 octets + '='.
- Parameters:
id - The input data to be processedo - The offset from which to begin processingl - The length (bound) at which processing is to end
- Returns:
- The decoded data
- Throws:
Base64Exception - Thrown is processing fails due to
formatting exceptions in the encoded data
decode
public static byte[] decode(String id)
throws Base64Exception
- Throws:
Base64Exception
decode
public static void decode(char[] id,
int o,
int l,
OutputStream ostream)
throws Base64Exception
- Throws:
Base64Exception
decode
public static void decode(String id,
OutputStream ostream)
throws Base64Exception
- Throws:
Base64Exception
encode
public static String encode(byte[] id)
encodeChunk
public static char[] encodeChunk(byte[] id,
int o,
int l)
encodeChunk
public static void encodeChunk(byte[] id,
int o,
int l,
OutputStream ostream)
throws Base64Exception
- Throws:
Base64Exception
encode
public static void encode(byte[] id,
int o,
int l,
Writer writer)
throws Base64Exception
- Throws:
Base64Exception
isValidBase64
public static boolean isValidBase64(int ch)
Apache CXF