| java.lang.Object
 java.io.OutputStream
java.io.FilterOutputStream
com.knowgate.misc.Base64Encoder
| Base64Encoder | | public class Base64Encoder extends FilterOutputStream (Code) | | A class to encode Base64 streams and strings.
See RFC 1521 section 5.2 for details of the Base64 algorithm.
This class can be used for encoding strings:
String unencoded = "webmaster:try2gueSS";
String encoded = Base64Encoder.encode(unencoded);
or for encoding streams:
OutputStream out = new Base64Encoder(System.out);
author:
Jason Hunter, Copyright © 2000
version:
1.2, 2002/11/01, added encode(byte[]) method to better handle
version:
binary data (thanks to Sean Graham)
version:
1.1, 2000/11/17, fixed bug with sign bit for char values
version:
1.0, 2000/06/11 |
| Constructor Summary | |
| public | Base64Encoder(OutputStream out)
Constructs a new Base64 encoder that writes output to the given
OutputStream. |
| Method Summary | |
| public void | close()
Closes the stream, this MUST be called to ensure proper padding is
written to the end of the output stream. | | public static String | encode(String unencoded)
Returns the encoded form of the given unencoded string. | | public static String | encode(byte[] bytes)
Returns the encoded form of the given unencoded string. | | public static void | main(String[] args)
| | public void | write(int b)
Writes the given byte to the output stream in an encoded form. | | public void | write(byte[] buf, int off, int len)
Writes the given byte array to the output stream in an
encoded form. |
| Base64Encoder | | public Base64Encoder(OutputStream out)(Code) | | Constructs a new Base64 encoder that writes output to the given
OutputStream.
Parameters:
out - the output stream |
| close | | public void close() throws IOException(Code) | | Closes the stream, this MUST be called to ensure proper padding is
written to the end of the output stream.
exception:
IOException - if an I/O error occurs |
| encode | | public static String encode(String unencoded)(Code) | | Returns the encoded form of the given unencoded string. The encoder
uses the ISO-8859-1 (Latin-1) encoding to convert the string to bytes.
For greater control over the encoding, encode the string to bytes
yourself and use encode(byte[]).
Parameters:
unencoded - the string to encode the encoded form of the unencoded string |
| encode | | public static String encode(byte[] bytes)(Code) | | Returns the encoded form of the given unencoded string.
Parameters:
unencoded - the string to encode the encoded form of the unencoded string |
| write | | public void write(int b) throws IOException(Code) | | Writes the given byte to the output stream in an encoded form.
exception:
IOException - if an I/O error occurs |
| write | | public void write(byte[] buf, int off, int len) throws IOException(Code) | | Writes the given byte array to the output stream in an
encoded form.
Parameters:
b - the data to be written
Parameters:
off - the start offset of the data
Parameters:
len - the length of the data
exception:
IOException - if an I/O error occurs |
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