CursorBirthdayManager.java :  » Utilities » birthdaymanager » com » marcoduff » birthdaymanager » Android Open Source

/*
 *  Birthday Manager
 *  Copyright (C) 2010 MarcoDuff.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 com.marcoduff.birthdaymanager;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

import com.marcoduff.birthdaymanager.model.BirthdayContact;

import android.content.Context;
import android.database.Cursor;
import android.provider.ContactsContract;
import android.provider.ContactsContract.Data;
import android.provider.ContactsContract.RawContacts;
import android.provider.ContactsContract.CommonDataKinds.Event;

/**
 * Classe che si occupa della lettura dei contatti nel db del terminale.
 * 
 * @author Marco Palermo (http://www.marcoduff.com/)
 * @version 1.1
 */
public class CursorBirthdayManager implements BirthdayManager {
  private Context context;
  
  /**
   * Costruisce un {@link BirthdayManager} per il recupero dei contatti tramite cursore.
   * 
   * @param context Il contesto della chiamata.
   */
  public CursorBirthdayManager(Context context) {
    this.context = context;
  }

  /**
   * Restituisce la collezione dei contatti.
   * 
   * @return La collezione dei contatti.
   * @since 1.1
   */
  @Override
  public Collection<BirthdayContact> getBirthdayContactCollection() {
    Map<Long, BirthdayContact> contactsMap = new HashMap<Long, BirthdayContact>(); 
      String[] projection = new String[] {
          ContactsContract.Contacts._ID,
          ContactsContract.Contacts.DISPLAY_NAME,
          ContactsContract.Contacts.IN_VISIBLE_GROUP,
      };
    Cursor cursor = context.getContentResolver().query(
          ContactsContract.Contacts.CONTENT_URI,
          projection,
          null,
          null,
          null);
    while(cursor.moveToNext()) {
      long id = cursor.getLong(cursor.getColumnIndex(ContactsContract.Contacts._ID));
      String displayName = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
      boolean isVisible = cursor.getInt(cursor.getColumnIndex(ContactsContract.Contacts.IN_VISIBLE_GROUP))==1;
      if(isVisible) contactsMap.put(new Long(id), new BirthdayContact(id,displayName));
    }
    cursor.close();
    updateBirthdayContact(contactsMap);
    return contactsMap.values();
  }
  
  private void updateBirthdayContact(Map<Long, BirthdayContact> contactsMap) {
      String[] projection = new String[] {
          RawContacts.CONTACT_ID,
          Data.DATA1
      };
      Cursor cursor = context.getContentResolver().query(
          ContactsContract.Data.CONTENT_URI,
          projection,
          Data.MIMETYPE +" = '"+Event.CONTENT_ITEM_TYPE+"' AND "+Data.DATA2+" = '"+Event.TYPE_BIRTHDAY+"'",
          null,
          null);
      while(cursor.moveToNext()) {
      long id = cursor.getLong(cursor.getColumnIndex(RawContacts.CONTACT_ID));
      String bornDate = cursor.getString(cursor.getColumnIndex(Data.DATA1));
        BirthdayContact birthdayContact = contactsMap.get(new Long(id));
        if(birthdayContact!=null)
          birthdayContact.setBornDate(bornDate);
      }
      cursor.close();
  }
}