Java tutorial
/* * * Copyright (C) 2012-2013 Joakim Lundborg <joakim,lundborg@gmail.com> * * This program 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. * * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. * */ package se.frikod.payday; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.Arrays; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import org.joda.time.DateTime; import org.joda.time.DateTimeConstants; import org.json.JSONException; import org.json.JSONObject; import android.content.Context; public class Holidays { private Map<DateTime, String> holidays; private List<Integer> weekend; public static String convertStreamToString(InputStream is) throws Exception { BufferedReader reader = new BufferedReader(new InputStreamReader(is)); StringBuilder sb = new StringBuilder(); String line; while ((line = reader.readLine()) != null) { sb.append(line); } is.close(); return sb.toString(); } Holidays(Context context) { InputStream holidaysFile; holidays = new HashMap<DateTime, String>(); weekend = Arrays.asList(DateTimeConstants.SATURDAY, DateTimeConstants.SUNDAY); try { holidaysFile = context.getResources().getAssets().open("Holidays_SE.json"); String holidaysString = convertStreamToString(holidaysFile); JSONObject holidaysData = new JSONObject(holidaysString); Iterator<?> dates = holidaysData.keys(); while (dates.hasNext()) { String key = (String) dates.next(); String description = (String) holidaysData.get(key); DateTime date = DateTime.parse(key); holidays.put(date, description); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } boolean isHoliday(DateTime date) { return (weekend.contains(date.dayOfWeek().get()) || holidays.containsKey(date)); } }