Android Open Source - announce-my-agenda-app Agenda

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License

The source code is released under:

GNU General Public License

Java Source Code

/** "Announce My Agenda" Android App
    Copyright (C) 2014 Chad Albers/*w  w  w.j a  v  a  2  s .c om*/

    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 com.neomantic.calendar_out_loud;

import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.Set;
import java.util.TimeZone;

import android.content.ContentResolver;
import android.content.ContentUris;
import android.database.Cursor;
import android.net.Uri;
import android.provider.CalendarContract;
import android.provider.CalendarContract.Attendees;
import android.provider.CalendarContract.Calendars;
import android.provider.CalendarContract.Events;
import android.provider.CalendarContract.Instances;
import android.util.Log;


public class Agenda {

  private static final String AGENDA_SORT_ORDER =
    CalendarContract.Instances.START_DAY + " ASC, " +
    CalendarContract.Instances.BEGIN + " ASC, " +
    CalendarContract.Events.TITLE + " ASC";


  private ContentResolver mContentResolver;

  public Agenda(ContentResolver contentResolver) {
    mContentResolver = contentResolver;
  }

  private static final String[] PROJECTION = new String[] {
    Instances._ID, // 0
    Instances.TITLE, // 1
    Instances.EVENT_LOCATION, // 2
    Instances.ALL_DAY, // 3
    Instances.BEGIN, // 4
    Instances.END, // 5
    Instances.EVENT_ID, // 6
    Instances.START_DAY, // 7 Julian start day
    Instances.START_MINUTE, // 8 Julian start day
    Instances.END_DAY, // 9 Julian end day
    Instances.END_MINUTE, // 10 Julian end day
    Instances.SELF_ATTENDEE_STATUS, // 11
    Instances.EVENT_TIMEZONE, // 12
    Events.CALENDAR_ID, // 13
    Calendars.VISIBLE, // 14
  };

  public static final int INDEX_INSTANCE_ID = 0;
  public static final int INDEX_TITLE = 1;
  public static final int INDEX_EVENT_LOCATION = 2;
  public static final int INDEX_ALL_DAY = 3;
  public static final int INDEX_BEGIN = 4;
  public static final int INDEX_END = 5;
  public static final int INDEX_EVENT_ID = 6;
  public static final int INDEX_START_DAY = 7;
  public static final int INDEX_START_MINUTE = 8;
  public static final int INDEX_END_DAY = 9;
  public static final int INDEX_END_MINUTE = 10;
  public static final int INDEX_SELF_ATTENDEE_STATUS = 11;
  public static final int INDEX_TIME_ZONE = 12;

  private Uri buildQueryUri(long start, long end) {
    Uri.Builder builder = Instances.CONTENT_URI.buildUpon();
    ContentUris.appendId(builder, start);
    ContentUris.appendId(builder, end);
    return builder.build();
  }

  public Cursor events(String[] calendarIds) {
    return mContentResolver.query(
        buildQueryUri(buildStartTime(), buildEndTime()),
        PROJECTION,
        buildSelection(calendarIds.length),
        calendarIds,
        AGENDA_SORT_ORDER);
  };

  private long buildStartTime() {
    Calendar cal = new GregorianCalendar(TimeZone.getDefault());
    cal.set(Calendar.HOUR_OF_DAY, 0);
    cal.set(Calendar.MINUTE, 0);
    cal.set(Calendar.SECOND, 0);
    cal.set(Calendar.MILLISECOND, 0);
    return cal.getTime().getTime();
  }

  private long buildEndTime() {
    Calendar cal = new GregorianCalendar(TimeZone.getDefault());
    cal.set(Calendar.HOUR_OF_DAY, 24);
    cal.set(Calendar.MINUTE, 59);
    cal.set(Calendar.SECOND, 59);
    cal.set(Calendar.MILLISECOND, 59);
    return cal.getTime().getTime();

  }
  private String buildSelection(int numberOfCalendars) {
    /* showing only visible calendars, and events that arent decline */
    String selection = Calendars.VISIBLE + " = 1 AND ";
    selection += Instances.SELF_ATTENDEE_STATUS + " != " + Attendees.ATTENDEE_STATUS_DECLINED + " AND ";
    selection += Events.CALENDAR_ID + " IN(" + buildPlaceHolders(numberOfCalendars)+ ")";
    return selection;
  }

  private String buildPlaceHolders(int numberOfPlaceHolders) {
    String placeHolders = "";
    String placeHolder = "?,";
    for(int i=0; i < numberOfPlaceHolders; i++) {
      if (i == (numberOfPlaceHolders - 1) ) {
        placeHolder = "?";
      }
      placeHolders += placeHolder;
    }
    return placeHolders;
  }

}

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