Java URL Create toURLString(byte[] hash)

Description

to URL String

License

LGPL

Declaration

public static String toURLString(byte[] hash) 

Method Source Code

//package com.java2s;
/*//www. ja  v a 2  s . co m
 * This file is part of Vapor.
 *
 * Copyright (c) 2013-2013, Snaipe <http://snaipe.me/>
 * Vapor is licensed under the GNU Lesser General Public License Version 3.
 *
 * Vapor is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 *
 * Vapor 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 Lesser General Public License for
 * more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>
 * for the GNU Lesser General Public License.
 */

public class Main {
    private static String[] HEX = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E",
            "F" };

    public static String toURLString(byte[] hash) {
        StringBuilder out = new StringBuilder(hash.length * 2);

        for (int i = 0; i < hash.length; i++) {
            if (isAscii(hash[i])) {
                out.append((char) hash[i]);
            } else {
                out.append('%').append(HEX[(hash[i] & 0xF0) >>> 4 & 0x0F]).append(HEX[hash[i] & 0x0F]);
            }
        }
        return out.toString();
    }

    private static boolean isAscii(byte c) {
        return c >= '0' && c <= '9' || c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c == '$' || c == '-'
                || c == '_' || c == '.' || c == '!';
    }
}

Related

1. toUrl(String url)
2. toUrlDate(String date)
3. toUrlPagePath(String pagePath)
4. toUrlParameterString(String fenString)
5. toUrlSafe(String timeZoneId)
6. toURLString(String s)