public GeocodingLookupServiceResult Geocode(string location)
{
GeocodingLookupServiceResult result;
string googleApiKey = ConfigurationManager.AppSettings["GoogleApiKey"];
string url = "https://maps.googleapis.com/maps/api/geocode/json?sensor=false&address=" + HttpUtility.UrlEncode(location);
if (googleApiKey != null)
{
url += "&key=" + googleApiKey;
}
WebRequest request = HttpWebRequest.Create(url);
WebResponse response = request.GetResponse();
using (StreamReader reader = new StreamReader(response.GetResponseStream())) {
string json = reader.ReadToEnd();
var deserializedJsonSubset = JsonConvert.DeserializeObject <GeocodeJsonStructure>(json);
Coordinates coords = null;
if (deserializedJsonSubset.status == "OK")
{
coords = new Coordinates()
{
Latitude = deserializedJsonSubset.results[0].geometry.location.lat, Longitude = deserializedJsonSubset.results[0].geometry.location.lng
};
}
result = new GeocodingLookupServiceResult()
{
Status = ParseLookupStatus(deserializedJsonSubset.status), Location = location, Coordinates = coords
};
}
return(result);
}
private GeocodingResult getGeocoding(string location)
{
GeocodingResult result = this.GeocodingCache.Lookup(location);
if (result == null)
{
GeocodingLookupServiceResult lookupResult = this.GeocodingLookupService.Geocode(location);
if (lookupResult.Status == GeocodingLookupServiceResult.LookupStatus.Ok ||
lookupResult.Status == GeocodingLookupServiceResult.LookupStatus.ZeroResults)
{
// Cache successful results (including no-such-address results).
this.GeocodingCache.Store(lookupResult);
}
result = lookupResult;
}
return(result);
}
