Android Open Source - Go2-Rennes Bus Station Service

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License

The source code is released under:

GNU General Public License

Java Source Code

/*******************************************************************************
 * Copyright (c) 2011 Michel DAVID mimah35-at-gmail.com
 * /*w  w  w .  ja 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.
 * 
 * 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 fr.gotorennes.remote;

import java.io.IOException;
import java.io.InputStream;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.util.Log;
import fr.gotorennes.domain.Ligne;
import fr.gotorennes.persistence.BusDao;

public class BusStationService {

  private Map<Long, Bitmap> iconCache = new ConcurrentHashMap<Long, Bitmap>();
  private Map<Long, String> urlCache = new ConcurrentHashMap<Long, String>();

  private static BusStationService instance;

  private BusStationService(Context context) {
    BusDao busDao = BusDao.getInstance(context, null);
    for (Ligne ligne : busDao.getLignes()) {
      urlCache.put(ligne.id, "bus/" + ligne.longCode + ".png");
    }
  }

  public static synchronized BusStationService getInstance(Context context) {
    if (instance == null) {
      instance = new BusStationService(context);
    }
    return instance;
  }

  public Bitmap getBitmapIcon(Context context, long idLigne) {

    if (iconCache.containsKey(idLigne)) {
      return iconCache.get(idLigne);
    }

    try {
      InputStream is = context.getAssets().open(urlCache.get(idLigne));
      Bitmap bitmap = BitmapFactory.decodeStream(is);
      if (bitmap != null) {
        iconCache.put(idLigne, bitmap);
      }
      return bitmap;
    } catch (IOException e) {
      Log.e("GoToRennes", "Erreur de chargement de l'icon", e);
    }

    return null;
  }
}

Java Source Code List

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