private static IEnumerable <Country> GetGeoNamesCountries(IContainGeoNames geoNames)
{
if (_geoNamesCountriesCache == null || _geoNamesCountriesUpdated.AddDays(1) < DateTime.UtcNow)
{
_geoNamesCountriesCache = geoNames.Countries();
_geoNamesCountriesUpdated = DateTime.UtcNow;
}
return(_geoNamesCountriesCache);
}
public GeoNamesToponym Handle(SingleGeoNamesToponym query)
{
if (query == null)
{
throw new ArgumentNullException("query");
}
// first look in the db
var toponym = _entities.FindByPrimaryKey <GeoNamesToponym>(query.GeoNameId);
if (toponym != null)
{
return(toponym);
}
// invoke geonames service
var geoNamesToponym = _geoNames.Get(query.GeoNameId);
if (geoNamesToponym == null)
{
return(null);
}
// convert geonames type to entity
toponym = geoNamesToponym.ToEntity();
// map parent
var geoNamesHierarchy = _geoNames.Hierarchy(query.GeoNameId, ResultStyle.Short);
if (geoNamesHierarchy != null && geoNamesHierarchy.Items.Count > 1)
{
toponym.Parent = Handle(new SingleGeoNamesToponym(
geoNamesHierarchy.Items[geoNamesHierarchy.Items.Count - 2].GeoNameId));
}
//// ensure no duplicate features or time zones are added to the db
toponym.Feature.Class = new SingleGeoNamesFeatureClassHandler(_entities)
.Handle(new SingleGeoNamesFeatureClass(toponym.Feature.ClassCode))
?? toponym.Feature.Class;
toponym.Feature = new SingleGeoNamesFeatureHandler(_entities)
.Handle(new SingleGeoNamesFeature(toponym.FeatureCode))
?? toponym.Feature;
toponym.TimeZone = new SingleGeoNamesTimeZoneHandler(_entities)
.Handle(new SingleGeoNamesTimeZone(toponym.TimeZoneId))
?? toponym.TimeZone;
// map country
_geoNamesCountries = _geoNamesCountries ?? _geoNames.Countries();
var geoNamesCountry = _geoNamesCountries.SingleOrDefault(c => c.GeoNameId == query.GeoNameId);
if (geoNamesCountry != null)
{
toponym.AsCountry = geoNamesCountry.ToEntity();
}
// map ancestors
DeriveNodes(toponym);
// add to db and save
_entities.Create(toponym);
return(toponym);
}