simple factory pattern for Gson gives complete control over serialization

GsonFactory.java

package com.dronze.json;

import com.dronze.json.deserialize.*;
import com.dronze.json.serialize.*;
import com.dronze.model.*;
import com.google.common.collect.HashBasedTable;
import com.google.common.collect.TreeBasedTable;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;

import java.util.Date;

/**
 * Created by claytongraham on 12/7/15.
 */
public class GsonFactory {

    public enum Type{
        DEFAULT,
        MODEL,
        USER,
        WIKI,
    }

    protected static Gson makeSerializerGson(Type type, Boolean pretty){
        GsonBuilder gsonBuilder = new GsonBuilder();
        if(pretty)
            gsonBuilder.setPrettyPrinting();

        switch (type){
            case MODEL:
                gsonBuilder.setDateFormat("yyyy-MM-dd");
                gsonBuilder.registerTypeAdapter(User.class, new UserModelSerializer());
                gsonBuilder.registerTypeAdapter(Ticker.class, new TickerModelSerializer());
                gsonBuilder.registerTypeAdapter(Account.class, new AccountModelSerializer());
                break;
            case DEFAULT:
            default:
                gsonBuilder.registerTypeAdapter(Date.class, new DronzeDateSerializer());
                gsonBuilder.registerTypeAdapter(HashBasedTable.class, new GuavaTableSerializer());
                gsonBuilder.registerTypeAdapter(TreeBasedTable.class, new GuavaTableSerializer());
                gsonBuilder.registerTypeAdapter(Screen.class, new ScreenSerializer());
                break;
        }
        return gsonBuilder.create();
    }

    protected static Gson makeDeserializerGson(Type type){
        GsonBuilder gsonBuilder = new GsonBuilder();
        switch (type){
            case MODEL:
                gsonBuilder.registerTypeAdapter(User.class, new UserDeserializer());
                gsonBuilder.registerTypeAdapter(Ticker.class, new ModelTickerDeserializer());
                gsonBuilder.registerTypeAdapter(Simulation.class, new SimulationDeserializer());
                gsonBuilder.registerTypeAdapter(Dronze.class, new DronzeDeserializer());
                gsonBuilder.registerTypeAdapter(Strategy.class, new StrategyDeserializer());
                gsonBuilder.registerTypeAdapter(AccountDeserializer.class, new AccountDeserializer());
                break;
            case WIKI:
                gsonBuilder.registerTypeAdapter(Ticker.class, new WikiTickerDeserializer());
                break;
            case USER:
                gsonBuilder.setDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS");
                break;
//            case TRANSACTION_FORM:
            case DEFAULT:
                gsonBuilder.setDateFormat("yyyy-MM-dd");
                break;
            default:
                break;

        }
        return gsonBuilder.create();
    }

    public static String toJson(Object entity, Type type){
        return makeSerializerGson(type, false).toJson(entity);
    }

    public static JsonElement toJsonElement(Object entity, Type type){
        return makeSerializerGson(type, false).toJsonTree(entity);
    }

    public static String toJson(Object entity, Type type, Boolean pretty){
        return makeSerializerGson(type, pretty).toJson(entity);
    }

    public static <T> T fromJson(String json, Class<T> classOfT, Type type){
        return makeDeserializerGson(type).fromJson(json, classOfT);
    }


}