private void CacheGeoLocations(GeoServiceResponse data, CancellationToken cancellationToken)
{
List <object> cacheKeyList = new List <object>();
cacheKeyList.Add("GeoLocationsAsync");
string cacheKey = string.Join(":", cacheKeyList);
CacheItemPolicy policy = new CacheItemPolicy();
policy.AbsoluteExpiration = new DateTimeOffset(DateTime.Now.AddMinutes(Settings.GeoServiceCacheExpiration));
cache.Add(cacheKey, data, policy);
foreach (Continent continent in data.Continents)
{
cache.Add("continent:" + continent.Id, continent, policy);
foreach (Country country in continent.Countries)
{
cache.Add("country:" + country.Id, country, policy);
foreach (City city in country.Cities)
{
cache.Add("city:" + city.IataCode, city, policy);
foreach (Airport airport in city.Airports)
{
cache.Add("airport:" + airport.Id, airport, policy);
}
}
}
}
}
public async Task <GeoServiceResponse> GetGeoLocationsAsync(CancellationToken cancellationToken)
{
List <object> cacheKeyList = new List <object>();
cacheKeyList.Add("GeoLocationsAsync");
string cacheKey = string.Join(":", cacheKeyList);
GeoServiceResponse data = (GeoServiceResponse)cache.Get(cacheKey);
if (data == null)
{
await Settings.GeoServiceLock.WaitAsync();
try
{
data = (GeoServiceResponse)cache.Get(cacheKey);
if (data == null)
{
string responseString = "";
if (_dataPath != "" && File.Exists(_dataPath + Settings.GeoServiceFileName))
{
var path = _dataPath + Settings.GeoServiceFileName;
responseString = File.ReadAllText(path);
}
else
{
var variables = new Dictionary <string, string>();
variables.Add("{apiKey}", ApiKey());
var URL = Settings.GeoServiceURL.ReplaceFromDictionary(variables);
var response = await WebRequestHelper.GetAsync(URL, WebRequestHelper.ResponseAcceptType.JSON, cancellationToken);
responseString = response.Item1.BytesToString();
try
{
if (_dataPath != "")
{
File.WriteAllText(_dataPath + Settings.GeoServiceFileName, responseString);
}
}
catch
{
}
}
data = JsonConvert.DeserializeObject <GeoServiceResponse>(responseString);
CacheGeoLocations(data, cancellationToken);
}
}
finally
{
Settings.GeoServiceLock.Release();
}
}
return(data);
}
