Class B64Code
Does not insert or interpret whitespace as described in RFC 1521. If you require this you must pre/post process your data.
Note that in a web context the usual case is to not want linebreaks or other white space in the encoded output.
All methods that begin with 'c' will use char arrays (as output on encode, as input on decode).
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Field Summary
FieldsModifier and TypeFieldDescription(package private) static final byte[]
(package private) static final byte[]
(package private) static final byte
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic byte[]
cdecode
(char[] b) Fast Base 64 decode as described in RFC 1421.static byte[]
cdecode
(char[] input, int inOffset, int inLen) Fast Base 64 decode as described in RFC 1421.private static void
cdecode
(char[] input, int inOffset, int inLen, byte[] output, int outOffset, int outLen) static char[]
cencode
(byte[] input) Fast Base 64 encode as described in RFC 1421.static char[]
cencode
(byte[] input, int inOffset, int inLen) Fast Base 64 encode as described in RFC 1421.private static void
cencode
(byte[] input, int inOffset, int inLen, char[] output, int outOffset) Fast Base 64 encode as described in RFC 1421.static byte[]
decode
(byte[] b) Fast Base 64 decode as described in RFC 1421.static byte[]
decode
(byte[] input, int inOffset, int inLen) Fast Base 64 decode as described in RFC 1421.private static void
decode
(byte[] input, int inOffset, int inLen, byte[] output, int outOffset, int outLen) static byte[]
Returns the base 64 decoded bytes.static byte[]
Returns the base 64 decoded bytes.private static void
static int
decodeTo
(byte[] output, int outOffset, byte[] input, int inOffset, int inLen) Returns the length of the decoded base64 input (written to the providedoutput
byte array).static int
Returns the length of the decoded base64 input (written to the providedoutput
byte array).static byte[]
encode
(byte[] input) Fast Base 64 encode as described in RFC 1421.static byte[]
encode
(byte[] input, int inOffset, int inLen) Fast Base 64 encode as described in RFC 1421.private static void
encode
(byte[] input, int inOffset, int inLen, byte[] output, int outOffset) Fast Base 64 encode as described in RFC 1421.static LinkedBuffer
encode
(byte[] input, int inOffset, int inLen, WriteSession session, LinkedBuffer lb) Encodes the byte array into theLinkedBuffer
and grows when full.static LinkedBuffer
sencode
(byte[] input, int inOffset, int inLen, WriteSession session, LinkedBuffer lb) Encodes the byte array into theLinkedBuffer
and flushes to theOutputStream
when buffer is full.
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Field Details
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pad
static final byte pad- See Also:
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nibble2code
static final byte[] nibble2code -
code2nibble
static final byte[] code2nibble
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Constructor Details
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B64Code
private B64Code()
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Method Details
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encode
public static byte[] encode(byte[] input) Fast Base 64 encode as described in RFC 1421. -
encode
public static byte[] encode(byte[] input, int inOffset, int inLen) Fast Base 64 encode as described in RFC 1421. -
cencode
public static char[] cencode(byte[] input) Fast Base 64 encode as described in RFC 1421. -
cencode
public static char[] cencode(byte[] input, int inOffset, int inLen) Fast Base 64 encode as described in RFC 1421. -
encode
private static void encode(byte[] input, int inOffset, int inLen, byte[] output, int outOffset) Fast Base 64 encode as described in RFC 1421.Does not insert whitespace as described in RFC 1521.
Avoids creating extra copies of the input/output.
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cencode
private static void cencode(byte[] input, int inOffset, int inLen, char[] output, int outOffset) Fast Base 64 encode as described in RFC 1421.Does not insert whitespace as described in RFC 1521.
Avoids creating extra copies of the input/output.
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encode
public static LinkedBuffer encode(byte[] input, int inOffset, int inLen, WriteSession session, LinkedBuffer lb) throws IOException Encodes the byte array into theLinkedBuffer
and grows when full.- Throws:
IOException
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sencode
public static LinkedBuffer sencode(byte[] input, int inOffset, int inLen, WriteSession session, LinkedBuffer lb) throws IOException Encodes the byte array into theLinkedBuffer
and flushes to theOutputStream
when buffer is full.- Throws:
IOException
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decode
public static byte[] decode(byte[] b) Fast Base 64 decode as described in RFC 1421. -
cdecode
public static byte[] cdecode(char[] b) Fast Base 64 decode as described in RFC 1421. -
decode
public static byte[] decode(byte[] input, int inOffset, int inLen) Fast Base 64 decode as described in RFC 1421.Does not attempt to cope with extra whitespace as described in RFC 1521.
Avoids creating extra copies of the input/output.
Note this code has been flattened for performance.
- Parameters:
input
- byte array to decode.inOffset
- the offset.inLen
- the length.- Returns:
- byte array containing the decoded form of the input.
- Throws:
IllegalArgumentException
- if the input is not a valid B64 encoding.
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cdecode
public static byte[] cdecode(char[] input, int inOffset, int inLen) Fast Base 64 decode as described in RFC 1421.Does not attempt to cope with extra whitespace as described in RFC 1521.
Avoids creating extra copies of the input/output.
Note this code has been flattened for performance.
- Parameters:
input
- char array to decode.inOffset
- the offset.inLen
- the length.- Returns:
- byte array containing the decoded form of the input.
- Throws:
IllegalArgumentException
- if the input is not a valid B64 encoding.
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decodeTo
public static int decodeTo(byte[] output, int outOffset, byte[] input, int inOffset, int inLen) Returns the length of the decoded base64 input (written to the providedoutput
byte array). Theoutput
byte array must have enough capacity or it will fail. -
decode
private static void decode(byte[] input, int inOffset, int inLen, byte[] output, int outOffset, int outLen) -
cdecode
private static void cdecode(char[] input, int inOffset, int inLen, byte[] output, int outOffset, int outLen) -
decode
Returns the base 64 decoded bytes. The providedstr
must already be base-64 encoded. -
decode
Returns the base 64 decoded bytes. The providedstr
must already be base-64 encoded. -
decodeTo
Returns the length of the decoded base64 input (written to the providedoutput
byte array). Theoutput
byte array must have enough capacity or it will fail. -
decode
private static void decode(String str, int inOffset, int inLen, byte[] output, int outOffset, int outLen)
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