Java Base64 base64ToBits(char data)

Description

Converts a Base64 char to to corresponding 6-bit value

License

Open Source License

Declaration

private static byte base64ToBits(char data) 

Method Source Code

//package com.java2s;
/**/*from  w  ww .  ja  va 2 s.  c  o  m*/
* 
* Copyright (C) 2004-2008 FhG Fokus
*
* This file is part of the FhG Fokus UPnP stack - an open source UPnP implementation
* with some additional features
*
* You can redistribute the FhG Fokus UPnP stack and/or modify it
* under the terms of the GNU General Public License Version 3 as published by
* the Free Software Foundation.
*
* For a license to use the FhG Fokus UPnP stack software under conditions
* other than those described here, or to purchase support for this
* software, please contact Fraunhofer FOKUS by e-mail at the following
* addresses:
*   upnpstack@fokus.fraunhofer.de
*
* The FhG Fokus UPnP stack is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>
* or write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/

public class Main {
    /** Converts a Base64 char to to corresponding 6-bit value */
    private static byte base64ToBits(char data) {
        if (data >= 'A' && data <= 'Z') {
            return (byte) (data - 'A');
        }
        if (data >= 'a' && data <= 'z') {
            return (byte) (data - 'a' + 26);
        }
        if (data >= '0' && data <= '9') {
            return (byte) (data - '0' + 52);
        }
        if (data == '+') {
            return (byte) 62;
        }
        return (byte) 63;
    }
}

Related

1. base64Character(int number)
2. base64CharToValue(byte c)
3. base64enc(byte[] in)
4. base64Pad(String s)
5. base64ReadChunk(InputStream in, byte[] chunk)
6. base64ToByteArray(String s)
7. base64ToBytes(final String base64)
8. base64ToBytes(String value)
9. base64toInt(char c, byte[] alphaToInt)