/**
* Copyright (C) 2011 Brian Ferris <bdferris@onebusaway.org>
* Copyright (C) 2011 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.onebusaway.transit_data_federation.impl;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TimeZone;
import org.onebusaway.container.cache.Cacheable;
import org.onebusaway.exceptions.NoSuchAgencyServiceException;
import org.onebusaway.geospatial.model.CoordinateBounds;
import org.onebusaway.geospatial.model.CoordinatePoint;
import org.onebusaway.transit_data_federation.model.narrative.AgencyNarrative;
import org.onebusaway.transit_data_federation.services.AgencyService;
import org.onebusaway.transit_data_federation.services.narrative.NarrativeService;
import org.onebusaway.transit_data_federation.services.transit_graph.AgencyEntry;
import org.onebusaway.transit_data_federation.services.transit_graph.RouteCollectionEntry;
import org.onebusaway.transit_data_federation.services.transit_graph.RouteEntry;
import org.onebusaway.transit_data_federation.services.transit_graph.StopEntry;
import org.onebusaway.transit_data_federation.services.transit_graph.StopTimeEntry;
import org.onebusaway.transit_data_federation.services.transit_graph.TransitGraphDao;
import org.onebusaway.transit_data_federation.services.transit_graph.TripEntry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
public class AgencyServiceImpl implements AgencyService {
private static Logger _log = LoggerFactory.getLogger(AgencyServiceImpl.class);
@Autowired
private TransitGraphDao _graph;
@Autowired
private NarrativeService _narrativeService;
@Cacheable
public TimeZone getTimeZoneForAgencyId(String agencyId) {
AgencyNarrative narrative = _narrativeService.getAgencyForId(agencyId);
if (narrative == null)
throw new NoSuchAgencyServiceException(agencyId);
return TimeZone.getTimeZone(narrative.getTimezone());
}
@Cacheable
@Override
public List<String> getAllAgencyIds() {
List<String> agencyIds = new ArrayList<String>();
for (AgencyEntry agency : _graph.getAllAgencies()) {
agencyIds.add(agency.getId());
}
return new ArrayList<String>(agencyIds);
}
@Cacheable
public Map<String, CoordinatePoint> getAgencyIdsAndCenterPoints() {
Map<String, CoordinatePoint> centersByAgencyId = new HashMap<String, CoordinatePoint>();
for (AgencyEntry agency : _graph.getAllAgencies()) {
StopsCenterOfMass centerOfMass = new StopsCenterOfMass();
for( RouteCollectionEntry routeCollection : agency.getRouteCollections()) {
for( RouteEntry route : routeCollection.getChildren() ) {
for (TripEntry trip : route.getTrips() ) {
for( StopTimeEntry stopTime : trip.getStopTimes() ) {
StopEntry stop = stopTime.getStop();
centerOfMass.lats += stop.getStopLat();
centerOfMass.lons += stop.getStopLon();
centerOfMass.count++;
}
}
}
}
if (centerOfMass.count == 0) {
_log.warn("Agency has no service: " + agency);
} else {
double lat = centerOfMass.lats / centerOfMass.count;
double lon = centerOfMass.lons / centerOfMass.count;
centersByAgencyId.put(agency.getId(), new CoordinatePoint(lat, lon));
}
}
return centersByAgencyId;
}
@Cacheable
public Map<String, CoordinateBounds> getAgencyIdsAndCoverageAreas() {
Map<String, CoordinateBounds> boundsByAgencyId = new HashMap<String, CoordinateBounds>();
for (AgencyEntry agency : _graph.getAllAgencies()) {
CoordinateBounds bounds = new CoordinateBounds();
for( RouteCollectionEntry routeCollection : agency.getRouteCollections()) {
for( RouteEntry route : routeCollection.getChildren() ) {
for (TripEntry trip : route.getTrips() ) {
for( StopTimeEntry stopTime : trip.getStopTimes() ) {
StopEntry stop = stopTime.getStop();
bounds.addPoint(stop.getStopLat(), stop.getStopLon());
}
}
}
}
boundsByAgencyId.put(agency.getId(), bounds);
}
return boundsByAgencyId;
}
private static class StopsCenterOfMass {
public double lats = 0;
public double lons = 0;
public double count = 0;
}
}