public static async Task <DataTable> RunYahooSource(string stockId, DateTime start, DateTime end, DataTable DtStocks)
{
_country = Country.USA;
_config = GetConfiguration();
_provider = new StockQuoteSourceProvider(_config, _country);
IStockQuoteDataSource yahooDataSource = GetYahooDataSource(_provider);
if (yahooDataSource == null)
{
Console.WriteLine("Error : Yahoo data source object is null");
return(new DataTable());
}
IReadOnlyList <IStockQuoteFromDataSource> results = await yahooDataSource.GetHistoricalQuotesAsync(_country, stockId, start, end, WriteToError);
Object[] stockPrice = new Object[results.Count + 1];
stockPrice[0] = stockId.ToUpper();
int i = 1;
foreach (IStockQuoteFromDataSource quote in results)
{
if (DtStocks.Rows.Count == 0)
{
DtStocks.Columns.Add(quote.TradeDateTime.ToShortDateString(), typeof(Double));
}
stockPrice[i] = quote.ClosePrice;
i++;
}
DtStocks.Rows.Add(stockPrice);
PrintToCsv(DtStocks);
return(DtStocks);
}
public void GetMostRecentQuoteTest(Country country, string stockId)
{
IConfiguration config = TestServiceProvider.GetTestConfiguration();
IStockQuoteProvider provider = new StockQuoteSourceProvider(config, country);
IStockQuoteDataSource yahooSource = provider.GetStockDataSources().FirstOrDefault(a => a.Source == Contracts.StockQuoteSource.Yahoo);
Assert.NotNull(yahooSource);
IStockQuoteFromDataSource result = yahooSource.GetMostRecentQuoteAsync(country, stockId, WriteToErrorLogAction).Result;
Assert.NotNull(result);
Assert.True(result.IsValid);
}
static async Task RunAlphaVantageSource(string stockId)
{
IStockQuoteDataSource alphaVantageDataSource = GetAlphaVantageDataSource(_provider);
if (alphaVantageDataSource == null)
{
Console.WriteLine("Error : Yahoo data source object is null");
return;
}
IStockQuoteFromDataSource quote = await alphaVantageDataSource.GetMostRecentQuoteAsync(_country, stockId, WriteToError).ConfigureAwait(false);
if (quote != null)
{
PrintQuote(quote);
}
}
/// <summary>
/// Get a list of stock data source
/// </summary>
/// <returns></returns>
public IReadOnlyList <IStockQuoteDataSource> GetStockDataSources()
{
if (_dataSourceList == null)
{
_dataSourceList = new List <IStockQuoteDataSource>();
// Yahoo is common for now
IStockQuoteDataSource yahooDataSource = CreateStockSource(Contracts.StockQuoteSource.Yahoo);
if (yahooDataSource != null)
{
_dataSourceList.Add(yahooDataSource);
}
switch (_country)
{
case Country.Taiwan:
// TODO : add later
break;
case Country.USA:
IStockQuoteDataSource alphaVantageSource = CreateStockSource(Contracts.StockQuoteSource.AlphaVantage);
if (alphaVantageSource != null)
{
_dataSourceList.Add(CreateStockSource(Contracts.StockQuoteSource.AlphaVantage));
}
break;
case Country.HK:
// TODO: add later if there exists a better source for HK
break;
case Country.Test:
// There is no data source for Test
break;
default:
break;
}
}
return(_dataSourceList);
}
//just for tests
public static async Task <IReadOnlyList <IStockQuoteFromDataSource> > GetFromYahooSourceAsList(string stockId, DateTime start, DateTime end)
{
_country = Country.USA;
_config = GetConfiguration();
_provider = new StockQuoteSourceProvider(_config, _country);
IStockQuoteDataSource yahooDataSource = GetYahooDataSource(_provider);
if (yahooDataSource == null)
{
Console.WriteLine("Error : Yahoo data source object is null");
return(new List <IStockQuoteFromDataSource>());
}
var results = await yahooDataSource
.GetHistoricalQuotesAsync(_country, stockId, start, end, WriteToError);
return(results);
}
public void GetHistoricalQuotesTest(Country country, string stockId)
{
IConfiguration config = TestServiceProvider.GetTestConfiguration();
IStockQuoteProvider provider = new StockQuoteSourceProvider(config, country);
IStockQuoteDataSource yahooSource = provider.GetStockDataSources().FirstOrDefault(a => a.Source == Contracts.StockQuoteSource.Yahoo);
Assert.NotNull(yahooSource);
DateTime start = new DateTime(2018, 3, 12);
DateTime end = new DateTime(2018, 3, 16);
IReadOnlyList <IStockQuoteFromDataSource> results = yahooSource.GetHistoricalQuotesAsync(country, stockId, start, end, WriteToErrorLogAction).Result;
Assert.NotNull(results);
Assert.Equal(5, results.Count);
foreach (IStockQuoteFromDataSource data in results)
{
Assert.True(data.IsValid);
}
}
