Android Open Source - TUMensa Vote Helper

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C) 2011 Daniel Jacobi//from  ww w  .  j a  v a2s  .  co m
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package de.questmaster.tudmensa;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.Calendar;

import android.os.Bundle;
import android.text.format.DateFormat;

/**
 * @author Daniel
 * 
 */
public class VoteHelper extends Thread {

  private final static int MODE_GET_VOTES = 0;
  private final static int MODE_SET_VOTES = 1;
  private static final String mURLlocation = "http://www.questmaster.de/tumensa/";

  private Bundle mDialogData = null;
  private MealsDbAdapter mDbHelper;
  private int mModeOfOperation = MODE_GET_VOTES;
  private MensaMeals mParent = null;

  /**
   * @param bundle
   */
  public VoteHelper(MensaMeals parent, MealsDbAdapter dbHelper) {
    mDbHelper = dbHelper;
    mParent = parent;

    mModeOfOperation = MODE_GET_VOTES;
  }

  /**
   * @param bundle
   */
  public VoteHelper(MensaMeals parent, Bundle bundle) {
    mDialogData = bundle;
    mParent = parent;
    mModeOfOperation = MODE_SET_VOTES;
  }

  @Override
  public void run() {
    switch (mModeOfOperation) {
    case MODE_GET_VOTES:
      float res_visual,
      res_taste,
      res_price;
      int cnt_visual,
      cnt_price,
      cnt_taste;
      String db_location,
      db_counter;
      String[] db_dates;
      int db_counter_num;

      // get dates in DB from today on
      db_dates = mDbHelper.fetchDatesFromToday((String) DateFormat.format("yyyyMMdd", Calendar.getInstance()));

      for (String db_date : db_dates) {
        // read votes data
        try {
          URL voteURL = new URL(String.format(mURLlocation + "D%s.txt", db_date));
          InputStream in = voteURL.openStream();

          BufferedReader br = new BufferedReader(new InputStreamReader(in));

          String line;
          while ((line = br.readLine()) != null) {
            String tokens[] = line.split(" "); // <mealid> <v1> <vc1> <v2> <vc2> <v3> <vc3>
            String db_tokens[] = tokens[0].split("\\|"); // <location> <counter> <num>

            if (tokens.length == 7 && db_tokens.length == 3) {
              // populate vars
              db_location = db_tokens[0].replaceAll("_", " ");
              db_counter = db_tokens[1].replaceAll("_", " ");
              db_counter_num = Integer.parseInt(db_tokens[2]);

              res_visual = Float.parseFloat(tokens[1]);
              cnt_visual = Integer.parseInt(tokens[2]);
              res_price = Float.parseFloat(tokens[3]);
              cnt_price = Integer.parseInt(tokens[4]);
              res_taste = Float.parseFloat(tokens[5]);
              cnt_taste = Integer.parseInt(tokens[6]);

              // store votes in DB
              long id = mDbHelper.fetchMealId(db_location, db_date, db_counter, db_counter_num);
              mDbHelper.updateMealExternalVotes(id, res_visual, res_price, res_taste, cnt_visual, cnt_price, cnt_taste);
            }
          }

          in.close();
        } catch (MalformedURLException e) {
          e.printStackTrace();
        } catch (IOException e) {
          // This occurs if file not found, but thats ok.
          //e.printStackTrace();
        }
      }

      // update list
      mParent.mHandler.sendEmptyMessage(1);
      break;
    case MODE_SET_VOTES:
      try {
        String visual = String.valueOf(mDialogData.getBoolean(MensaMeals.VOTE_DIALOG_VISUAL_CHANGE_ID) ? mDialogData.getFloat(MensaMeals.VOTE_DIALOG_VISUAL_ID) : 0);
        String price = String.valueOf(mDialogData.getBoolean(MensaMeals.VOTE_DIALOG_PRICE_CHANGE_ID) ? mDialogData.getFloat(MensaMeals.VOTE_DIALOG_PRICE_ID) : 0);
        String taste = String.valueOf(mDialogData.getBoolean(MensaMeals.VOTE_DIALOG_TASTE_CHANGE_ID) ? mDialogData.getFloat(MensaMeals.VOTE_DIALOG_TASTE_ID) : 0);

        URL voteURL = new URL(String.format(mURLlocation + "mealcounter.php?mealid=%s&date=%s&vote1=%s&vote2=%s&vote3=%s", mDialogData.getString(MensaMeals.VOTE_DIALOG_MEAL_SCRIPT_ID),
            mDialogData.getString(MensaMeals.VOTE_DIALOG_DATE_ID), visual, price, taste));

        URLConnection uc = voteURL.openConnection();

        uc.connect();
        uc.getContent();

        // Signal the user everything is done
        mParent.mHandler.sendEmptyMessage(2);

      } catch (MalformedURLException e) {
        e.printStackTrace();
      } catch (IOException e) {
        e.printStackTrace();
      }
    }
  }

}

Java Source Code List

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