java.lang.Object
com.sun.xacml.attr.Base64
- class Base64
- extends java.lang.Object
Class that knows how to encode and decode Base64 values. Base64
Content-Transfer-Encoding rules are defined in Section 6.8 of IETF RFC 2045
Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet
Message Bodies, available at
ftp://ftp.isi.edu/in-notes/rfc2045.txt.
All methods of this class are static and thread-safe.
- Since:
- 1.0
|
Constructor Summary |
(package private) |
Base64()
|
|
Method Summary |
static byte[] |
decode(java.lang.String encoded,
boolean ignoreBadChars)
Decodes a Base64-encoded String. |
static java.lang.String |
encode(byte[] binaryValue)
Encodes the input byte array into a Base64-encoded
String. |
private static void |
initDecodeArray()
Initializes Base64DecodeArray, if this hasn't already been
done. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
SPACE
private static final char SPACE
- See Also:
- Constant Field Values
ETX
private static final char ETX
- See Also:
- Constant Field Values
VTAB
private static final char VTAB
- See Also:
- Constant Field Values
FF
private static final char FF
- See Also:
- Constant Field Values
HTAB
private static final char HTAB
- See Also:
- Constant Field Values
LF
private static final char LF
- See Also:
- Constant Field Values
ALTLF
private static final char ALTLF
- See Also:
- Constant Field Values
CR
private static final char CR
- See Also:
- Constant Field Values
PAD
private static char PAD
BASE64EncodingString
private static final java.lang.String BASE64EncodingString
- See Also:
- Constant Field Values
PAD_INDEX
private static final int PAD_INDEX
- See Also:
- Constant Field Values
MAX_BASE64_CHAR
private static final int MAX_BASE64_CHAR
- See Also:
- Constant Field Values
Base64DecodeArray
private static int[] Base64DecodeArray
NO_CHARS_DECODED
private static final int NO_CHARS_DECODED
- See Also:
- Constant Field Values
ONE_CHAR_DECODED
private static final int ONE_CHAR_DECODED
- See Also:
- Constant Field Values
TWO_CHARS_DECODED
private static final int TWO_CHARS_DECODED
- See Also:
- Constant Field Values
THREE_CHARS_DECODED
private static final int THREE_CHARS_DECODED
- See Also:
- Constant Field Values
PAD_THREE_READ
private static final int PAD_THREE_READ
- See Also:
- Constant Field Values
PAD_FOUR_READ
private static final int PAD_FOUR_READ
- See Also:
- Constant Field Values
MAX_GROUPS_PER_LINE
private static final int MAX_GROUPS_PER_LINE
- The maximum number of groups that should be encoded
onto a single line (so we don't exceed 76 characters
per line).
- See Also:
- Constant Field Values
Base64
Base64()
encode
public static java.lang.String encode(byte[] binaryValue)
- Encodes the input byte array into a Base64-encoded
String. The output String
has a CR LF (0x0d 0x0a) after every 76 bytes, but
not at the end.
WARNING: If the input byte array is modified
while encoding is in progress, the output is undefined.
initDecodeArray
private static void initDecodeArray()
- Initializes Base64DecodeArray, if this hasn't already been
done.
decode
public static byte[] decode(java.lang.String encoded,
boolean ignoreBadChars)
throws java.io.IOException
- Decodes a Base64-encoded
String. The result
is returned in a byte array that should match the original
binary value (before encoding). Whitespace characters
in the input String are ignored.
If the ignoreBadChars parameter is
true, characters that are not allowed
in a BASE64-encoded string are ignored. Otherwise,
they cause an IOException to be raised.
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