com.unovo.frame.utils.gson.GsonHelper.java Source code

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Here is the source code for com.unovo.frame.utils.gson.GsonHelper.java

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/*
 * Copyright (c) 2017 ?. All Rights Reserved.
 * Use of this source code is governed by a Shanghai Unovo Information Technology Co.,Ltd license
 * that can be found in the LICENSE file in the root of the web site.
 *
 *   http://www.unovo.com.cn
 *
 * An additional intellectual property rights grant can be found
 * in the file PATENTS.  All contributing project authors may
 * be found in the AUTHORS file in the root of the source tree.
 *
 */

package com.unovo.frame.utils.gson;

import com.unovo.frame.utils.gson.deserializer.DoubleJsonDeserializer;
import com.unovo.frame.utils.gson.deserializer.FloatJsonDeserializer;
import com.unovo.frame.utils.gson.deserializer.IntegerJsonDeserializer;
import com.unovo.frame.utils.gson.deserializer.ListJsonDeserializer;
import com.unovo.frame.utils.gson.deserializer.StringJsonDeserializer;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonDeserializer;
import com.google.gson.reflect.TypeToken;
import java.lang.reflect.Type;
import java.util.List;
import java.util.Map;

/**
 * Created by Aeatho on 2016/12/29 16:51
 *
 * Prject: unovo-guest-app
 * Description:
 * email: aeatho@gmail.com
 */

public class GsonHelper {

    private static Gson GSON_INSTANCE;

    public synchronized static Gson getGson() {
        if (GSON_INSTANCE == null)
            GSON_INSTANCE = createGson();
        return GSON_INSTANCE;
    }

    private static Gson createGson() {
        GsonBuilder gsonBuilder = new GsonBuilder();
        //gsonBuilder.setExclusionStrategies(new SpecificClassExclusionStrategy(null, Model.class));
        gsonBuilder.setDateFormat("yyyy-MM-dd HH:mm:ss");

        JsonDeserializer deserializer = new IntegerJsonDeserializer();
        gsonBuilder.registerTypeAdapter(int.class, deserializer);
        gsonBuilder.registerTypeAdapter(Integer.class, deserializer);

        deserializer = new FloatJsonDeserializer();
        gsonBuilder.registerTypeAdapter(float.class, deserializer);
        gsonBuilder.registerTypeAdapter(Float.class, deserializer);

        deserializer = new DoubleJsonDeserializer();
        gsonBuilder.registerTypeAdapter(double.class, deserializer);
        gsonBuilder.registerTypeAdapter(Double.class, deserializer);

        deserializer = new StringJsonDeserializer();
        gsonBuilder.registerTypeAdapter(String.class, deserializer);

        deserializer = new ListJsonDeserializer();
        gsonBuilder.registerTypeAdapter(List.class, deserializer);

        return gsonBuilder.create();
    }

    public static String createGsonString(Object object) {
        return getGson().toJson(object);
    }

    public static <T> T changeGsonToBean(String gsonString, Class<T> cls) {
        return getGson().fromJson(gsonString, cls);
    }

    public static <T> T changeGsonToBean(String gsonString, Type type) {
        return getGson().fromJson(gsonString, type);
    }

    public static <T> List<T> changeGsonToList(String gsonString, Class<T> cls) {
        return getGson().fromJson(gsonString, new TypeToken<List<T>>() {
        }.getType());
    }

    public static <T> List<Map<String, T>> changeGsonToListMaps(String gsonString) {
        List<Map<String, T>> list = null;
        list = getGson().fromJson(gsonString, new TypeToken<List<Map<String, T>>>() {
        }.getType());
        return list;
    }

    public static <T> Map<String, T> changeGsonToMaps(String gsonString) {
        Map<String, T> map = null;
        map = getGson().fromJson(gsonString, new TypeToken<Map<String, T>>() {
        }.getType());
        return map;
    }
}