/// <summary>
/// Loads the world visa map from a storage source or a third-party web service.
/// </summary>
/// <returns>The world visa map.</returns>
public async Task <IEnumerable <CountryData> > LoadWorldVisaMap(string xmlContent)
{
var xmlDoc = XDocument.Parse(xmlContent);
var countryCodes = xmlDoc.Descendants("country").Select(n => n.Attribute("value").Value.ToUpper()).ToList();
var countryNodes = xmlDoc.Descendants("country").ToList();
var geoApiManager = new GeoApiManager();
var countriesList = await geoApiManager.GetCountries();
countryNodes.ForEach(node =>
{
try
{
var visaChildNodes = node.Descendants("visa").ToList();
var country = countriesList.FirstOrDefault(c => c.Alpha2Code == node.Attribute("value").Value.ToUpper());
country.VFCountries = visaChildNodes.Where(n => n.Attribute("type").Value == "vf").Select(n => n.Attribute("code").Value).ToList();
country.VOACountries = visaChildNodes.Where(n => n.Attribute("type").Value == "voa").Select(n => n.Attribute("code").Value).ToList();
country.ETACountries = visaChildNodes.Where(n => n.Attribute("type").Value == "eta").Select(n => n.Attribute("code").Value).ToList();
country.VReqCountries.AddRange(countryCodes.Except(country.VFCountries.Concat(country.VOACountries).Concat(country.ETACountries)));
country.VReqCountries.Remove(country.Alpha2Code);
}
catch (Exception e)
{
Console.WriteLine(e.Message + ":::" + node.Value);
}
});
return(countriesList);
}
public IEnumerable <CountryData> GetAll()
{
if (_memCache.TryGetValue("GeoCountries", out IEnumerable <CountryData> countries))
{
return(countries);
}
var geoApiManager = new GeoApiManager();
var countryTask = geoApiManager.GetCountries();
countryTask.Wait();
var cacheEntryOptions = new MemoryCacheEntryOptions()
.SetAbsoluteExpiration(TimeSpan.FromDays(1));
_memCache.Set("GeoCountries", countryTask.Result, cacheEntryOptions);
return(countryTask.Result);
}