/// <summary>
/// A method that implements the singleton Design Pattern that creates
/// only 1 object.
/// </summary>
/// <returns>return a WeatherData object in type of WeatherDatasite1</returns>
public static WeatherDataSite2 Instance()
{
if (weatherdata == null)
{
weatherdata = new WeatherDataSite2();
}
return weatherdata;
}
/// <summary>
/// A method that implements the singleton Design Pattern that creates
/// only 1 object.
/// </summary>
/// <returns>return a WeatherData object in type of WeatherDatasite1</returns>
public static WeatherDataSite2 Instance()
{
if (weatherdata == null)
{
weatherdata = new WeatherDataSite2();
}
return(weatherdata);
}
/// <summary>
/// This method get from the user the web service that he want
/// to create an object, and create a singleton object.
/// </summary>
/// <param name="str">The desired service.</param>
/// <returns>Return an object from the type of the chosen REStful Web Service.</returns>
public static WeatherData getWeatherDataService(string str)
{
WeatherData wd = null;
if (str.Equals("OPEN_WEATHER_MAP"))
{
wd = WeatherDataSite1.Instance();
}
else if (str.Equals("WORLD_WEATHER_ONLINE"))
{
wd = WeatherDataSite2.Instance();
}
return(wd);
}
/// <summary>
/// A virtual method that get the weather object of a chosen country.
/// </summary>
/// <param name="location">Location requested by user to get service.</param>
/// <returns>return a WeatherData object with all the params. </returns>
public override WeatherData getWeatherData(Location location)
{
WeatherDataSite2 wd = new WeatherDataSite2();
try
{
wd.location.Country = location.Country;
XMLFunction(wd, location);
}
catch (WeatherDataServiceException ex)
{
Console.WriteLine(ex.Message);
}
return wd;
}
/// <summary>
/// A virtual method that get the weather object of a chosen country.
/// </summary>
/// <param name="location">Location requested by user to get service.</param>
/// <returns>return a WeatherData object with all the params. </returns>
public override WeatherData getWeatherData(Location location)
{
WeatherDataSite2 wd = new WeatherDataSite2();
try
{
wd.location.Country = location.Country;
XMLFunction(wd, location);
}
catch (WeatherDataServiceException ex)
{
Console.WriteLine(ex.Message);
}
return(wd);
}
/// <summary>
/// A virtual method that get the weather object of a chosen country.
/// </summary>
/// <param name="wd">The WeatherData object. </param>
/// <param name="location">Location requested by user to get service.</param>
/// <returns>return a WeatherData object with all the params. </returns>
public void XMLFunction(WeatherDataSite2 wd, Location location)
{
String URLString = "http://api.worldweatheronline.com/premium/v1/weather.ashx?key=" +
key + "&q=" + location.Country + "&num_of_days=1&tp=24&format=xml";
string xml;
using (WebClient client = new WebClient())
{
try
{
xml = client.DownloadString(URLString);// xml url to string
}
catch (WebException)
{
throw new WeatherDataServiceException("There is not internet connection");
}
}
try
{
XDocument ob = XDocument.Parse(xml);
//A linq to xml that get all the values from the site
var weather = from x in ob.Descendants("data")
select new
{
City = x.Descendants("query").First().Value,
Ip = x.Descendants("type").First().Value,
Sun = x.Descendants("sunrise").First().Value,
Set = x.Descendants("sunset").First().Value,
Tempat = x.Descendants("temp_C").First().Value,
Cloud = x.Descendants("cloudcover").First().Value,
Humidity = x.Descendants("humidity").First().Value,
Speed = x.Descendants("windspeedKmph").First().Value,
Direction = x.Descendants("winddir16Point").First().Value,
Update = x.Descendants("date").First().Value,
};
//Get all the values from the linq vairables and set
//them into the WeatherData service values.
foreach (var data in weather)
{
//This restful web service also support an ip search.
//this check is to confrim that the user pressed a country.
if(data.Ip=="IP")
{
throw new XmlException();
}
wd.location.Country = data.City;
wd.sunrise.Sunrise = data.Sun;
wd.sunset.Sunset = data.Set;
wd.lastupdate.Update = data.Update;
wd.temperature.Celsius = Double.Parse(data.Tempat);
wd.cloud.Clouds = data.Cloud;
wd.humidity.Humitidy = data.Humidity;
wd.wind.Speed = Double.Parse(data.Speed);
wd.wind.Direction = data.Direction;
}
}
catch (XmlException)
{
throw new WeatherDataServiceException("Wrong Country");
}
catch (WebException)
{
throw new WeatherDataServiceException("There is not internet connection");
}
catch (InvalidOperationException ex)
{
throw new WeatherDataServiceException(ex.Message);
}
}
/// <summary>
/// A virtual method that get the weather object of a chosen country.
/// </summary>
/// <param name="wd">The WeatherData object. </param>
/// <param name="location">Location requested by user to get service.</param>
/// <returns>return a WeatherData object with all the params. </returns>
public void XMLFunction(WeatherDataSite2 wd, Location location)
{
String URLString = "http://api.worldweatheronline.com/premium/v1/weather.ashx?key=" +
key + "&q=" + location.Country + "&num_of_days=1&tp=24&format=xml";
string xml;
using (WebClient client = new WebClient())
{
try
{
xml = client.DownloadString(URLString);// xml url to string
}
catch (WebException)
{
throw new WeatherDataServiceException("There is not internet connection");
}
}
try
{
XDocument ob = XDocument.Parse(xml);
//A linq to xml that get all the values from the site
var weather = from x in ob.Descendants("data")
select new
{
City = x.Descendants("query").First().Value,
Ip = x.Descendants("type").First().Value,
Sun = x.Descendants("sunrise").First().Value,
Set = x.Descendants("sunset").First().Value,
Tempat = x.Descendants("temp_C").First().Value,
Cloud = x.Descendants("cloudcover").First().Value,
Humidity = x.Descendants("humidity").First().Value,
Speed = x.Descendants("windspeedKmph").First().Value,
Direction = x.Descendants("winddir16Point").First().Value,
Update = x.Descendants("date").First().Value,
};
//Get all the values from the linq vairables and set
//them into the WeatherData service values.
foreach (var data in weather)
{
//This restful web service also support an ip search.
//this check is to confrim that the user pressed a country.
if (data.Ip == "IP")
{
throw new XmlException();
}
wd.location.Country = data.City;
wd.sunrise.Sunrise = data.Sun;
wd.sunset.Sunset = data.Set;
wd.lastupdate.Update = data.Update;
wd.temperature.Celsius = Double.Parse(data.Tempat);
wd.cloud.Clouds = data.Cloud;
wd.humidity.Humitidy = data.Humidity;
wd.wind.Speed = Double.Parse(data.Speed);
wd.wind.Direction = data.Direction;
}
}
catch (XmlException)
{
throw new WeatherDataServiceException("Wrong Country");
}
catch (WebException)
{
throw new WeatherDataServiceException("There is not internet connection");
}
catch (InvalidOperationException ex)
{
throw new WeatherDataServiceException(ex.Message);
}
}
