/// <summary>
/// Gets the all the horses and their prices from the various sources. If a new source is introduced make sure
/// to create another DataProvider with correct key
/// </summary>
/// <returns>All Horses sorted by price in ascending order</returns>
public List <HorseCommonModel> GetHorsesFromAllSources()
{
try
{
var allSources = sourceProvider.GetAllSources();
var allHorses = new List <HorseCommonModel>();
foreach (var source in allSources)
{
var allDataProviders = serviceProvider.GetService(typeof(IEnumerable <IDataProvider>)) as IEnumerable <IDataProvider>;
var dataProvider = allDataProviders.SingleOrDefault(x => source.Key.Contains(x.KeySelector));
if (dataProvider == null)
{
// We'll log an error and even trigger an alarm but will continue to return the valid sources to keep operation running
logger.LogError($"Could not find a DataProvider for {source.Key}");
continue;
}
allHorses.AddRange(dataProvider.ReadData(source.Value));
}
// This could be seperated as a seperate concern, that will keep this class simpler and will make this more maintainable
allHorses = allHorses.OrderBy(x => x.Price).ToList();
return(allHorses);
}
catch (Exception ex)
{
// We will need more specific logging and potential failure recovery strategies (retries,...)
logger.LogError($"Failed to get Horses from sources. Exception:{ex}");
throw;
}
}
