public SimpleFeature next() throws IOException, IllegalArgumentException, NoSuchElementException {
if (results == null) return null;
SpatialDatabaseRecord record = results.next();
if (record == null) return null;
builder.reset();
builder.set(FEATURE_PROP_GEOM, record.getGeometry());
if (extraPropertyNames != null) {
for (int i = 0; i < extraPropertyNames.length; i++) {
if (record.hasProperty(extraPropertyNames[i])) {
builder.set(extraPropertyNames[i], record.getProperty(extraPropertyNames[i]));
}
}
}
return builder.buildFeature(record.getId());
}
/**
* Method to get the nearest parking by longitude and latitude.
*
* @param lon the longitude
* @param lat the latitude
* @param distance
* @param status if 0 we search a station with free places and if null whatever !
* @return
*/
public POI getNearest(Double lon, Double lat, Double distance, Integer status)
throws MobilITException {
Coordinate coord = new Coordinate(lat, lon);
EditableLayer layer = spatial.getOrCreateEditableLayer(Constant.PARKING_LAYER);
// @formatter:off
List<GeoPipeFlow> results =
GeoPipeline.startNearestNeighborSearch(layer, coord, distance).sort("Distance").toList();
// @formatter:on
int i = 0;
Boolean find = false;
POI nearest = null;
while (find == false && i < results.size()) {
SpatialDatabaseRecord dbRecord = results.get(i).getRecord();
Node node = dbRecord.getGeomNode();
String geocode = (String) node.getProperty("geocode", null);
String id = (String) node.getProperty("id", null);
String name = (String) node.getProperty("name", null);
Double lng = (Double) node.getProperty("lon", null);
Double lati = (Double) node.getProperty("lat", null);
if (status != null) {
AbstractParking service = this.getGeoService(geocode);
HashMap<String, Integer> places = (HashMap<String, Integer>) service.getParking(id);
if (places.isEmpty()) {
// here there is no information
nearest = new POI(id, name, lng, lati, geocode);
find = true;
} else {
Integer free = places.get(Constant.PARKING_FREE);
if (free != null && free > 0) {
nearest = new POI(id, name, lng, lati, geocode);
find = true;
}
}
} else {
nearest = new POI(id, name, lng, lati, geocode);
find = true;
}
i++;
}
// TODO: throw an exception if there is no station ?
return nearest;
}