/// <summary>
/// Executes <code>GeocodingRequest</code> against Google Maps Geocoding API web service
/// and returns the result as <seealso cref="GeocodingResponse"/>, in asynchronous fashion.
/// </summary>
/// <returns></returns>
public GeocodingResponse GetResponseAsync()
{
Validate();
string url = BuildRequestUrl();
GeocodingResponseData data = ProcessAsync(url);
if (data.IsOverQueryLimit)
{
data = _context.Retry(() => ProcessAsync(url), d => !d.IsOverQueryLimit);
}
return(new GeocodingResponse().Parse(data));
}
private GeocodingResponseData GetData(WebResponse response)
{
GeocodingResponseData jsonData = null;
string responseData = null;
using (var reader = new StreamReader(response.GetResponseStream()))
{
responseData = reader.ReadToEnd();
}
if (responseData != null)
{
var serializer = new JavaScriptSerializer();
jsonData = serializer.Deserialize <GeocodingResponseData>(responseData);
}
return(jsonData);
}
public async Task <GeocodingResponse> GetResponseAsync()
{
Validate();
string url = BuildRequestUrl();
GeocodingResponseData data = await ProcessAsync(url);
if (data.IsOverQueryLimit)
{
GeocodingResponseData retryData = await _context.RetryAsync(async() => await ProcessAsync(url), d => !d.IsOverQueryLimit);
if (retryData != null)
{
data = retryData;
}
}
return(new GeocodingResponse().Parse(data));
}
internal GeocodingResponse Parse(GeocodingResponseData data)
{
Status = data?.status ?? GeocodingResponseStatus.None;
if (Status == GeocodingResponseStatus.OK)
{
foreach (var r in data.results)
{
List <AddressComponent> addressComponents = new List <AddressComponent>(r.address_components.Length);
foreach (var ac in r.address_components)
{
addressComponents.Add(new AddressComponent
{
LongName = ac.long_name,
ShortName = ac.short_name,
Types = ac.types
});
}
Geometry geometry = new Geometry()
{
LocationType = r.geometry.location_type
};
if (r.geometry.bounds != null)
{
geometry.Bounds = new Bounds
{
NorthEast = new LatLng
{
Latitude = r.geometry.bounds.northeast.lat,
Longitude = r.geometry.bounds.northeast.lng
},
SouthWest = new LatLng
{
Latitude = r.geometry.bounds.southwest.lat,
Longitude = r.geometry.bounds.southwest.lng
}
};
}
if (r.geometry.location != null)
{
geometry.Location = new LatLng
{
Latitude = r.geometry.location.lat,
Longitude = r.geometry.location.lng
};
}
if (r.geometry.viewport != null)
{
geometry.Viewport = new Bounds
{
NorthEast = new LatLng
{
Latitude = r.geometry.viewport.northeast.lat,
Longitude = r.geometry.viewport.northeast.lng
},
SouthWest = new LatLng
{
Latitude = r.geometry.viewport.southwest.lat,
Longitude = r.geometry.viewport.southwest.lng
}
};
}
Results.Add(new GeocodingResult
{
AddressComponents = addressComponents,
FormattedAddress = r.formatted_address,
Geometry = geometry,
PartialMatch = r.partial_match,
Types = r.types
});
}
}
return(this);
}
