Java Map Create buildMap(Object... data)

Description

Builds a map out of parameters

License

Open Source License

Parameter

Parameter	Description
data	a parameter

Declaration

public static Map<String, Object> buildMap(Object... data) 

Method Source Code

//package com.java2s;
/*/*ww w. j a v a2 s. c om*/
 *  Copyright (c) 2014 Michael Berkovich, http://tr8nhub.com All rights reserved.
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a copy
 *  of this software and associated documentation files (the "Software"), to deal
 *  in the Software without restriction, including without limitation the rights
 *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *  copies of the Software, and to permit persons to whom the Software is
 *  furnished to do so, subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in
 *  all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *  THE SOFTWARE.
 */

import java.util.HashMap;

import java.util.Map;

public class Main {
    /**
     * Builds a map out of parameters
     * @param data
     * @return
     */
    public static Map<String, Object> buildMap(Object... data) {
        HashMap<String, Object> result = new HashMap<String, Object>();

        if (data.length % 2 != 0)
            throw new IllegalArgumentException("Odd number of arguments");

        String key = null;
        Integer step = -1;

        for (Object value : data) {
            step++;
            switch (step % 2) {
            case 0:
                if (value == null)
                    throw new IllegalArgumentException("Null key value");
                key = (String) value;
                continue;
            case 1:
                result.put(key, value);
                break;
            }
        }

        return result;
    }
}

Related

1. buildMap(K key, V value)
2. buildMap(K key1, V value1)
3. buildMap(List a, Map coeffs)
4. buildMap(Object key, Object value)
5. buildMap(String... keysAndValues)
6. buildMap(String... keyValuePairs)
7. createMap()
8. createMap()