Java Properties Create toProperties(String jsonStr)

Description

Convert a JSON string to Properties .

License

Open Source License

Parameter

Parameter	Description
jsonStr	a parameter

Declaration

public static Properties toProperties(String jsonStr) 

Method Source Code

//package com.java2s;
/*/*from ww  w . j  a  va 2  s .  c  om*/
 * Copyright (c) 2017 OBiBa. All rights reserved.
 *
 * This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.io.IOException;

import java.util.Map;
import java.util.Properties;

import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.base.Strings;

public class Main {
    /**
     * Convert a JSON string to {@link Properties}.
     *
     * @param jsonStr
     * @return
     */
    public static Properties toProperties(String jsonStr) {
        return toProperties(toMap(jsonStr));
    }

    /**
     * Convert a (JSON) map to {@link Properties}.
     *
     * @param map
     * @return
     */
    public static Properties toProperties(Map<String, Object> map) {
        Properties properties = new Properties();
        appendProperties(properties, "", map);
        return properties;
    }

    /**
     * Convert JSON string to map.
     *
     * @param jsonStr
     * @return
     */
    public static Map<String, Object> toMap(String jsonStr) {
        ObjectMapper mapper = new ObjectMapper();
        // convert JSON string to Map
        try {
            return mapper.readValue(jsonStr, new TypeReference<Map<String, Object>>() {
            });
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    private static void appendProperties(Properties properties, String path, Map<String, Object> map) {
        map.forEach((key, value) -> {
            String currentPath = Strings.isNullOrEmpty(path) ? key : path + "." + key;
            if (value instanceof Map) {
                appendProperties(properties, currentPath, (Map<String, Object>) value);
            } else {
                properties.put(currentPath, value.toString());
            }
        });
    }
}

Related

1. toProperties(byte[] source)
2. toProperties(byte[] source)
3. toProperties(File properties, File xml, String comment)
4. toProperties(FileInputStream fis)
5. toProperties(final String value)
6. toProperties(String props)
7. toRawString(Properties props)
8. totalPolicies(Class className)