/// <summary>
/// Responsible to parse the XML and translates it to Location and WeatherData objects.
/// It also initialize the location object with all relevant details.
/// </summary>
/// <param name="location"></param>
/// <exception cref="WeatherDataServiceException">
/// Thrown when method fail to initialize Location and Weatherdata from XML.</exception>
/// <returns>WeatherData object with all relevant information</returns>
private WeatherData ParseXmlToWeatherData(Location location)
{
WebClient client = null;
try
{
client = new WebClient();
string xml = @client.DownloadString(UrlXmlAddress.ToString());
XDocument doc = XDocument.Parse(xml);
location.Initialize //fill out all missing data of location object
(
doc.Descendants("city").Attributes("name").First().Value,
double.Parse(doc.Descendants("coord").Attributes("lon").First().Value),
double.Parse(doc.Descendants("coord").Attributes("lat").First().Value),
doc.Descendants("country").First().Value
);
return(new WeatherData //return WeatherData object with full data inside
(
location,
double.Parse(doc.Descendants("temperature").Attributes("value").First().Value),
double.Parse(doc.Descendants("humidity").Attributes("value").First().Value),
double.Parse(doc.Descendants("pressure").Attributes("value").First().Value),
doc.Descendants("clouds").Attributes("name").First().Value,
doc.Descendants("lastupdate").Attributes("value").First().Value,
double.Parse(doc.Descendants("speed").Attributes("value").First().Value) * 3.6,
doc.Descendants("speed").Attributes("name").First().Value,
doc.Descendants("direction").Attributes("name").First().Value
));
}
catch (WebException)
{
throw new WeatherDataServiceException("Faild to connect to openweathermap.org");
}
catch (XmlException)
{
throw new WeatherDataServiceException("Failed to find the XML document");
}
catch (InvalidOperationException)
{
throw new WeatherDataServiceException("Failed to parse the XML");
}
catch (FormatException)
{
throw new WeatherDataServiceException("Failed to format the string to a number");
}
catch (Exception e)
{
throw new WeatherDataServiceException(e.Message);
}
finally
{
//Closing the connection to openweathermap.org
client?.Dispose();
//Restarting the address so next time we also get a correct url address
UrlXmlAddress.Clear();
}
}
/// <summary>
/// Responsible to parse the Json and translates it to Location and WeatherData objects.
/// It also initialize the location object with all relevant details.
/// </summary>
/// <param name="location"></param>
/// <exception cref="WeatherDataServiceException">
/// Thrown when method fail to initialize Location and Weatherdata from Json.</exception>
/// <returns>WeatherData object with all relevant information</returns>
private WeatherData ParseJsonToWeatherData(Location location)
{
WebClient client = null;
const string windDescription = "degree is ";
try
{
client = new WebClient();
string json = @client.DownloadString(UrlJsonAddress.ToString());
JObject jsonObject = JObject.Parse(json);
location.Initialize
(
(string)jsonObject["location"]["name"],
double.Parse((string)jsonObject["location"]["lon"]),
double.Parse((string)jsonObject["location"]["lat"]),
(string)jsonObject["location"]["country"]
);
return(new WeatherData
(
location,
double.Parse((string)jsonObject["current"]["temp_c"]),
double.Parse((string)jsonObject["current"]["humidity"]),
double.Parse((string)jsonObject["current"]["pressure_mb"]),
((string)jsonObject["current"]["condition"]["text"]).Remove(((string)jsonObject["current"]["condition"]["text"]).Length - 1),
(string)jsonObject["current"]["last_updated"],
double.Parse((string)jsonObject["current"]["wind_kph"]),
windDescription.Insert(windDescription.Length, (string)jsonObject["current"]["wind_degree"]),
(string)jsonObject["current"]["wind_dir"]
));
}
catch (WebException)
{
throw new WeatherDataServiceException("Faild to connect to www.apixu.com");
}
catch (FormatException)
{
throw new WeatherDataServiceException("Failed to format the string to a number");
}
catch (Exception e)
{
throw new WeatherDataServiceException(e.Message);
}
finally
{
//Closing the connection to openweathermap.org
client?.Dispose();
//Restarting the address so next time we also get a correct url address
UrlJsonAddress.Clear();
}
}
