/**
* 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.presentation.impl;
import java.util.List;
import javax.annotation.PostConstruct;
import org.onebusaway.geospatial.model.CoordinateBounds;
import org.onebusaway.geospatial.services.SphericalGeometryLibrary;
import org.onebusaway.presentation.model.DefaultSearchLocation;
import org.onebusaway.presentation.services.DefaultSearchLocationService;
import org.onebusaway.presentation.services.ServiceAreaService;
import org.onebusaway.transit_data.model.AgencyWithCoverageBean;
import org.onebusaway.transit_data.services.TransitDataService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
public class ServiceAreaServiceImpl implements ServiceAreaService {
private static final double DEFAULT_SEARCH_RADIUS = 20000;
private TransitDataService _transitDataService;
private DefaultSearchLocationService _defaultSearchLocationService;
private double _searchRadius = DEFAULT_SEARCH_RADIUS;
private CoordinateBounds _defaultBounds;
private boolean _calculateDefaultBoundsFromAgencyCoverage = true;
@Autowired
public void setTransitDataService(TransitDataService transitDataService) {
_transitDataService = transitDataService;
}
@Autowired
public void setDefaultSearchLocationService(
DefaultSearchLocationService defaultSearchLocationService) {
_defaultSearchLocationService = defaultSearchLocationService;
}
public double getSearchRadius() {
return _searchRadius;
}
public void setSearchRadius(double searchRadius) {
_searchRadius = searchRadius;
}
public CoordinateBounds getDefaultBounds() {
return _defaultBounds;
}
public void setDefaultBounds(CoordinateBounds bounds) {
_defaultBounds = bounds;
}
public void setCalculateDefaultBoundsFromAgencyCoverage(
boolean calculateDefaultBoundsFromAgencyCoverage) {
_calculateDefaultBoundsFromAgencyCoverage = calculateDefaultBoundsFromAgencyCoverage;
}
@PostConstruct
public void setup() {
if (_calculateDefaultBoundsFromAgencyCoverage) {
List<AgencyWithCoverageBean> agenciesWithCoverage = _transitDataService.getAgenciesWithCoverage();
CoordinateBounds bounds = new CoordinateBounds();
for (AgencyWithCoverageBean bean : agenciesWithCoverage) {
double lat = bean.getLat();
double lon = bean.getLon();
double latSpan = bean.getLatSpan() / 2;
double lonSpan = bean.getLonSpan() / 2;
bounds.addPoint(lat - latSpan, lon - lonSpan);
bounds.addPoint(lat + latSpan, lon + lonSpan);
}
if (!bounds.isEmpty())
_defaultBounds = bounds;
}
}
/****
* {@link ServiceAreaService}
****/
@Override
public boolean hasDefaultServiceArea() {
return _defaultBounds != null;
}
@Override
public CoordinateBounds getServiceArea() {
DefaultSearchLocation location = _defaultSearchLocationService.getDefaultSearchLocationForCurrentUser();
if (location != null) {
double lat = location.getLat();
double lon = location.getLon();
return SphericalGeometryLibrary.bounds(lat, lon, _searchRadius);
}
return _defaultBounds;
}
}