com.pangdata.sdk.util.JsonUtils.java Source code

Introduction

Here is the source code for com.pangdata.sdk.util.JsonUtils.java

Source

/*
 * The MIT License (MIT)
 * 
 * Copyright (c) 2015 Preversoft
 * 
 * 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.
 */
package com.pangdata.sdk.util;

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.ObjectMapper;

public class JsonUtils {

    private final static ObjectMapper om = new ObjectMapper();

    public static String convertObjToJsonStr(Object dataObj) {
        try {
            return om.writeValueAsString(dataObj);
        } catch (JsonProcessingException e) {
            throw new IllegalArgumentException(e);
        }
    }

    public static String getValueInJsonStr(String key, String jsonStr) {
        Map<String, String> map;
        try {
            map = om.readValue(jsonStr, new TypeReference<HashMap<String, String>>() {
            });
        } catch (Exception e) {
            throw new IllegalArgumentException(e);
        }

        if (map != null) {
            return map.get(key);
        } else {
            return null;
        }
    }

    public static <T> T toObject(String content, Class obj) {
        try {
            return (T) om.readValue(content, obj);
        } catch (Exception e) {
            throw new IllegalArgumentException(e);
        }
    }
}