/*
* Copyright 2009 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.gtugs.service;
import org.gtugs.domain.Location;
import org.gtugs.repository.JdoLocationDao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
import com.google.appengine.api.memcache.MemcacheService;
import com.google.appengine.api.memcache.MemcacheServiceFactory;
import java.util.List;
/**
* @author jasonacooper@google.com (Jason Cooper)
*/
@Service("locationManager")
public class SimpleLocationManager {
private static final String LOCATIONS_MEMCACHE_KEY = "locations";
@Autowired
private JdoLocationDao locationDao;
public List<Location> getLocations() {
MemcacheService ms = MemcacheServiceFactory.getMemcacheService();
if (!ms.contains(LOCATIONS_MEMCACHE_KEY)) {
ms.put(LOCATIONS_MEMCACHE_KEY, locationDao.getLocations());
}
return (List<Location>) ms.get(LOCATIONS_MEMCACHE_KEY);
}
public void incrementOrStoreLocation(Double latitude, Double longitude) {
MemcacheService ms = MemcacheServiceFactory.getMemcacheService();
locationDao.incrementOrStoreLocation(latitude, longitude);
ms.delete(LOCATIONS_MEMCACHE_KEY);
}
public void setLocationDao(JdoLocationDao locationDao) {
this.locationDao = locationDao;
}
}