DataUtils.java

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2014 Devcon Contributors
 *
 * 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 org.devconmyanmar.apps.devcon.utils;

import android.content.Context;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.google.gson.stream.JsonReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.devconmyanmar.apps.devcon.db.MyScheduleDao;
import org.devconmyanmar.apps.devcon.db.SpeakerDao;
import org.devconmyanmar.apps.devcon.db.SponsorDao;
import org.devconmyanmar.apps.devcon.db.TalkDao;
import org.devconmyanmar.apps.devcon.model.MySchedule;
import org.devconmyanmar.apps.devcon.model.Speaker;
import org.devconmyanmar.apps.devcon.model.Sponsor;
import org.devconmyanmar.apps.devcon.model.Talk;

import static org.devconmyanmar.apps.devcon.utils.LogUtils.LOGD;
import static org.devconmyanmar.apps.devcon.utils.LogUtils.makeLogTag;

/**
 * Created by Ye Lin Aung on 14/10/14.
 */
public class DataUtils {

  private static final String TAG = makeLogTag(DataUtils.class);
  private Context mContext;
  private SpeakerDao mSpeakerDao;
  private TalkDao mTalkDao;
  private MyScheduleDao mFavDao;
  private SponsorDao mSponsorDao;
  private Gson gson = new Gson();

  public DataUtils(Context context) {
    this.mContext = context;
    mSpeakerDao = new SpeakerDao(mContext);
    mTalkDao = new TalkDao(mContext);
    mFavDao = new MyScheduleDao(mContext);
    mSponsorDao = new SponsorDao(mContext);
  }

  public void loadFromAssets() {

    try {
      InputStream json = mContext.getAssets().open("bootstrapdata.json");
      JsonParser parser = new JsonParser();
      JsonReader reader = new JsonReader(new InputStreamReader(json));
      reader.setLenient(true);

      JsonObject data = parser.parse(reader).getAsJsonObject();
      JsonArray sessionsArray = data.getAsJsonArray("sessions");
      JsonArray speakerArray = data.getAsJsonArray("speakers");
      JsonArray favArray = data.getAsJsonArray("my_schedules");
      LOGD(TAG, "sessions : " + sessionsArray.size());
      LOGD(TAG, "speakers : " + speakerArray.size());
      LOGD(TAG, "my_schedules : " + favArray.size());

      for (JsonElement k : speakerArray) {
        Speaker speaker = gson.fromJson(k, Speaker.class);
        mSpeakerDao.create(speaker);
      }

      for (JsonElement j : sessionsArray) {
        Talk talk = new Talk();
        talk.setId(j.getAsJsonObject().get("id").getAsInt());
        talk.setTitle(j.getAsJsonObject().get("title").getAsString());
        talk.setDescription(j.getAsJsonObject().get("description").getAsString());
        talk.setPhoto(j.getAsJsonObject().get("photo").getAsString());
        talk.setDate(j.getAsJsonObject().get("date").getAsString());
        talk.setFavourite(j.getAsJsonObject().get("favourite").getAsBoolean());
        talk.setTalk_type(j.getAsJsonObject().get("talk_type").getAsInt());
        talk.setRoom(j.getAsJsonObject().get("room").getAsString());
        talk.setFrom_time(j.getAsJsonObject().get("from_time").getAsString());
        talk.setTo_time(j.getAsJsonObject().get("to_time").getAsString());
        JsonArray speakers = j.getAsJsonObject().getAsJsonArray("speakers");
        talk.setSpeakers(speakers.toString());
        mTalkDao.create(talk);
      }

      for (JsonElement l : favArray) {
        MySchedule mySchedule = new MySchedule();
        mySchedule.setTitle(l.getAsJsonObject().get("title").getAsString());
        mySchedule.setSubTitle(l.getAsJsonObject().get("sub_title").getAsString());
        mySchedule.setStart(l.getAsJsonObject().get("start").getAsString());
        mySchedule.setEnd(l.getAsJsonObject().get("end").getAsString());
        mySchedule.setClickBlock(l.getAsJsonObject().get("click_block").getAsBoolean());
        mySchedule.setDate(l.getAsJsonObject().get("date").getAsInt());
        mySchedule.setId(l.getAsJsonObject().get("id").getAsInt());
        JsonArray talkIds = l.getAsJsonObject().getAsJsonArray("associated_talk");
        mySchedule.setAssociatedTalkId(talkIds.toString());
        mySchedule.setHasFavorite(false);
        mySchedule.setFavoriteTalkId(0);
        mFavDao.create(mySchedule);
      }

      InputStream sponsorJson = mContext.getAssets().open("sponsors.json");
      JsonParser sponsorParser = new JsonParser();
      JsonReader sponsorReader = new JsonReader(new InputStreamReader(sponsorJson));
      reader.setLenient(true);

      JsonObject sponsorData = sponsorParser.parse(sponsorReader).getAsJsonObject();
      JsonArray sponsorArray = sponsorData.getAsJsonArray("sponsors");

      for (JsonElement k : sponsorArray) {
        Sponsor sponsor = gson.fromJson(k, Sponsor.class);
        mSponsorDao.create(sponsor);
      }

      LOGD(TAG, "I am done ~ ");
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
}