internal static void Log(MessageType type, string message)
{
const string logSource = "YahooDataSource";
if (IsLoggable(type))
{
switch (type)
{
case MessageType.Error:
DataSourceBase.DotNetLog(logSource, "Error", message);
break;
case MessageType.Warning:
DataSourceBase.DotNetLog(logSource, "Warning", message);
break;
case MessageType.Info:
DataSourceBase.DotNetLog(logSource, "Info", message);
break;
case MessageType.Trace:
DataSourceBase.DotNetLog(logSource, "Trace", message);
break;
}
}
}
/// <summary>
/// Get and build historical data for a ticker
/// </summary>
/// <param name="tickerData"></param>
/// <remarks>
/// Place short term resource allocation (e.g. local DB connection setup, etc.) here.
/// Load and populate all quotation data to tickerData.Quotes using the Merge method.
/// See .NET for AmiBroker's Help on QuotationList class.
/// </remarks>
public override void Ticker_GetQuotes(TickerData tickerData)
{
// get the path to data file directory
string dataDirectory = AppDomain.CurrentDomain.BaseDirectory;
dataDirectory = Directory.GetParent(dataDirectory).FullName; // ...\AmiBroker\.NET for AmiBroker
dataDirectory = Path.Combine(dataDirectory, @"Samples\Ascii"); // ...\AmiBroker\.NET for AmiBroker\Samples\Ascii
// get the data file path to load for the ticker
// --- replace it with your custom logic to build data file path using the ticker's name
// --- E.g.:
// --- string dataFilePath = Path.Combine(dataDirectory, tickerData.Ticker + ".csv");
string dataFilePath = Path.Combine(dataDirectory, "demodata_hist.csv");
try
{
// open data file of the ticker for reading
using (FileStream fileStream = File.Open(dataFilePath, FileMode.Open, FileAccess.Read))
{
using (StreamReader streamReader = new StreamReader(fileStream))
{
// skip the first line (header row)
// --- remove next line if your data files have no header row ---
streamReader.ReadLine();
// clear previously stored quotes in the plugin
tickerData.Quotes.Clear();
// read until the end of the file
while (!streamReader.EndOfStream)
{
// read a line (quotation record) from the file
string line = streamReader.ReadLine();
// convert the line to quotation object
Quotation quote = GetQuote(line);
// Merge method builds bars according to database's timebase
tickerData.Quotes.Merge(quote);
}
}
}
}
catch (Exception ex)
{
pluginStatus.Status = StatusCode.SevereError;
pluginStatus.Color = System.Drawing.Color.Red;
pluginStatus.ShortMessage = "Error";
pluginStatus.LongMessage = ex.ToString();
DataSourceBase.DotNetLog("Sample - Csv/text file", "Error", ex.ToString());
}
}
internal static void LogMessage(MessageType type, string message)
{
switch (type)
{
case MessageType.Error:
DataSourceBase.DotNetLog(logSource, "Error", message);
break;
case MessageType.Warning:
DataSourceBase.DotNetLog(logSource, "Warning", message);
break;
case MessageType.Info:
DataSourceBase.DotNetLog(logSource, "Info", message);
break;
case MessageType.Trace:
DataSourceBase.DotNetLog(logSource, "Trace", message);
break;
}
}