Android Open Source - Go2-Rennes Equipement Status 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
 * //from   ww  w  . j a va 2s .  c o  m
 * 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.util.HashMap;
import java.util.List;
import java.util.Map;

import org.json.JSONException;
import org.json.JSONObject;

import android.content.Context;
import fr.gotorennes.domain.Equipement;
import fr.gotorennes.domain.EquipementStatus;

public class EquipementStatusService extends RemoteService<EquipementStatus> {

  public static final String COMMAND = "getequipmentsstatus";
  public static final String NODE = "equipment";

  private static EquipementStatusService instance;

  private EquipementStatusService(Context context) {
    super();
  }
  
  protected String getVersion() {
    return "2.0";
  }

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

  private long lastUpdate = 0;
  private Map<String, Boolean> cache = null;

  public Map<String, Boolean> getEquipementStatus() {
    if (cache == null || System.currentTimeMillis() - lastUpdate > 300000) {
      List<EquipementStatus> result = loadList(COMMAND, NODE);
      if (result != null && !result.isEmpty()) {
        cache = new HashMap<String, Boolean>();
        for(EquipementStatus status : result) {
          cache.put(status.id, status.status);          
        }
        lastUpdate = System.currentTimeMillis();
      }
    }
    return cache;
  }

  public boolean getEquipementStatus(Equipement equipement) {
    Map<String, Boolean> status = getEquipementStatus();
    if (status == null) {
      return true;
    }
    return status.get(equipement.id);
  }

  @Override
  protected EquipementStatus populate(JSONObject jsonObject) throws JSONException {
    EquipementStatus equipementStatus = new EquipementStatus();
    equipementStatus.id = jsonObject.getString("id");
    equipementStatus.status = "1".equals(jsonObject.getString("state"));
    return equipementStatus;
  }

}

Java Source Code List

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