/**
* Copyright (C) 2011 Brian Ferris <bdferris@onebusaway.org>
*
* 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.onebusaway.geocoder.impl;
import org.onebusaway.geocoder.model.GeocoderResultsEntity;
import org.onebusaway.geocoder.model.GeocoderResults;
import org.onebusaway.geocoder.services.GeocoderService;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.orm.hibernate3.HibernateTemplate;
import org.springframework.transaction.annotation.Transactional;
public class DatabaseCachingGeocoderImpl implements GeocoderService {
private GeocoderService _geocoderService;
private HibernateTemplate _template;
public void setGeocoderService(GeocoderService geocoderService) {
_geocoderService = geocoderService;
}
@Autowired
public void setSessionFactory(SessionFactory sessionFactory) {
_template = new HibernateTemplate(sessionFactory);
}
@Transactional
public GeocoderResults geocode(String location) {
GeocoderResultsEntity entity = (GeocoderResultsEntity) _template.get(
GeocoderResultsEntity.class, location);
if (entity != null)
return entity.getResults();
GeocoderResults results = _geocoderService.geocode(location);
entity = new GeocoderResultsEntity();
entity.setLocation(location);
entity.setResults(results);
_template.saveOrUpdate(entity);
return results;
}
}