com.surfs.storage.web.utils.JsonUtils.java Source code

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Here is the source code for com.surfs.storage.web.utils.JsonUtils.java

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/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package com.surfs.storage.web.utils;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

public class JsonUtils {

    private static final ObjectMapper mapper = new ObjectMapper();

    public static String objectConvertJsonString(Object obj) throws JsonProcessingException {
        return mapper.writeValueAsString(obj);
    }

    public static Map<String, String> jsonStringConvertMap(String jsonString, String... args)
            throws JsonProcessingException, IOException {
        if (jsonString == null)
            return new HashMap<String, String>();
        JsonNode jsonNode = mapper.readTree(jsonString);
        Map<String, String> map = new HashMap<String, String>();
        for (String key : args) {
            map.put(key, jsonNode.get(key).toString());
        }
        return map;
    }

    public static <T> T stringConvertObject(String jsonString, TypeReference<T> type) throws IOException {
        return mapper.readValue(jsonString, type);
    }

    public static String objectConvertString(Object object) throws IOException {
        return mapper.writeValueAsString(object);
    }

}