Java Map to Json mapToJson(Map map)

Description

map To Json

License

Open Source License

Declaration

public static String mapToJson(Map<String, Object> map) 

Method Source Code

//package com.java2s;
/**/*from   w  ww.  ja  v a2 s.  com*/
 *
 * Copyright 2014 by Amin Abbaspour
 *
 * This file is part of Urmia.io
 *
 * Urmia.io is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Urmia.io 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 Urmia.io.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.util.Iterator;
import java.util.Map;

public class Main {
    public static String mapToJson(Map<String, Object> map) {
        final StringBuilder sb = new StringBuilder("{");

        Iterator<Map.Entry<String, Object>> itr = map.entrySet().iterator();

        while (itr.hasNext()) {
            Map.Entry<String, Object> e = itr.next();
            sb.append('"').append(e.getKey()).append("\":\"").append(e.getValue().toString()).append('"');
            if (itr.hasNext())
                sb.append(", ");
        }

        return sb.append('}').toString();
    }

    public static byte[] append(byte[] orig, String toAppend) {
        return append(orig, toAppend.getBytes(), (byte) '\n');
    }

    public static byte[] append(byte[] existing, byte[] addition) {
        return append(existing, addition, (byte) '\n');
    }

    public static byte[] append(byte[] existing, byte[] addition, byte delimiter) {

        byte[] content = new byte[existing.length + 1 + addition.length];

        System.arraycopy(existing, 0, content, 0, existing.length);
        content[existing.length] = delimiter;
        System.arraycopy(addition, 0, content, existing.length + 1, addition.length);

        return content;
    }
}

Related

1. mapToJson(Map map, boolean pretty, String indent)
2. mapToJson(Map parameters)
3. mapToJson(Map map)
4. toJson(Map map)