org.erlymon.monitor.dagger.module.GsonModule.java Source code

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Here is the source code for org.erlymon.monitor.dagger.module.GsonModule.java

Source

/*
 * Copyright (c) 2016, Sergey Penkovsky <sergey.penkovsky@gmail.com>
 *
 * This file is part of Erlymon Monitor.
 *
 * Erlymon Monitor is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Erlymon Monitor is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Erlymon Monitor.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.erlymon.monitor.dagger.module;

import android.content.SharedPreferences;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;

import java.lang.reflect.Type;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

import javax.inject.Singleton;

import dagger.Module;
import dagger.Provides;

/**
 * Created by sergey on 17.03.17.
 */
@Module(includes = { PreferencesModule.class })
public class GsonModule {
    @Provides
    @Singleton
    Gson provideGson(SharedPreferences sharedPreferences) {
        return new GsonBuilder()
                //.setDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'")
                .registerTypeAdapter(Date.class, new JsonDeserializer<Date>() {
                    final DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ", Locale.ENGLISH);

                    @Override
                    public Date deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
                            throws JsonParseException {
                        try {
                            return new Date(df.parse(json.getAsString()).getTime());
                        } catch (final java.text.ParseException e) {
                            //e.printStackTrace();
                            return null;
                        }
                    }
                }).setVersion(sharedPreferences.getFloat("protocolVersion", 3.4f))
                //.setVersion(3.4)
                .create();
    }
}