/// <summary>
/// Main entry point for the class. Downloads all data for all symbols in a list
/// </summary>
/// <returns>Task - not used</returns>
public async Task DownloadDataFromListAsync()
{
FileInfo symbolFileInfo = new FileInfo(SymbolList);
if (!symbolFileInfo.Exists)
{
throw new FileNotFoundException(symbolFileInfo.FullName);
}
// Build a list of symbols from the symbol file
var symbolList = new SymbolListBuilder().BuildListFromFile(symbolFileInfo);
// use a dummy symbol to create the object
_uriBuilder = new DownloadURIBuilder(Exchange, "A");
await LoopSymbolList(symbolList);
}
public string GetExchangeForSymbol(string symbol)
{
var builder = new DownloadURIBuilder("", symbol);
DateTime startdate = DateTime.Now.AddDays(-2);
DateTime enddate = DateTime.Now.AddDays(-1);
string uri = builder.GetGetPricesUrlForRecentData(startdate, enddate);
WebClient wClient = new WebClient();
NameValueCollection myQueryStringCollection = new NameValueCollection();
myQueryStringCollection.Add("symbol", _symbol);
wClient.QueryString = myQueryStringCollection;
string result = wClient.DownloadString(uri);
string exchange = result.Substring(11, result.IndexOf("\n", System.StringComparison.Ordinal) - 11);
return exchange;
}
public string GetExchangeForSymbol(string symbol)
{
var builder = new DownloadURIBuilder("", symbol);
DateTime startdate = DateTime.Now.AddDays(-2);
DateTime enddate = DateTime.Now.AddDays(-1);
string uri = builder.GetGetPricesUrlForRecentData(startdate, enddate);
WebClient wClient = new WebClient();
NameValueCollection myQueryStringCollection = new NameValueCollection();
myQueryStringCollection.Add("symbol", _symbol);
wClient.QueryString = myQueryStringCollection;
string result = wClient.DownloadString(uri);
string exchange = result.Substring(11, result.IndexOf("\n", System.StringComparison.Ordinal) - 11);
return(exchange);
}
/// <summary>
/// Gets teh Url from the Builder
/// </summary>
/// <returns>string - the url calculated in the Builder</returns>
private string getDownloadURI()
{
string ticker = textBoxTicker.Text;
string exchange = textBoxExchange.Text;
if (String.IsNullOrEmpty(ticker))
{
return string.Empty;
}
DownloadURIBuilder uriBuilder = new DownloadURIBuilder(exchange, ticker);
if (radioButtonAllData.Checked)
{
return uriBuilder.GetGetPricesUrlToDownloadAllData(DateTime.Now);
}
else if (radioButtonLastQuoute.Checked)
{
return uriBuilder.GetGetPricesUrlForLastQuote();
}
else if (radioButtonSince.Checked)
{
DateTime startDate = dateTimePickerSinceDate.Value.Date,
endDate = DateTime.Now.Date;
if (endDate < startDate)
{ //It's impossible to download data from the future. That's why no URL is returned in this case.
return string.Empty;
}
else
{
return uriBuilder.GetGetPricesUrlForRecentData(startDate, endDate);
}
}
else if (radioButtonMinutes.Checked)
{
return uriBuilder.GetGetPricesUrlForLastNumberOfDays(15);
}
else
{
return string.Empty;
}
}
/// <summary>
/// Entry point for downloading data from a list
/// </summary>
/// <returns>nothing</returns>
public async Task DownloadDataFromListAsync()
{
FileInfo symbolFileInfo = new FileInfo(SymbolList);
if (!symbolFileInfo.Exists)
{
throw new FileNotFoundException(symbolFileInfo.FullName);
}
// Build a list of symbols from the symbol file
var symbolList = new SymbolListBuilder().BuildListFromFile(symbolFileInfo);
// use a dummy symbol to create the object
_uriBuilder = new DownloadURIBuilder(Exchange, "A");
if (_wClient == null)
{
_wClient = new WebClient();
_wClient.DownloadDataCompleted += wClient_DownloadDataCompleted;
}
await LoopSymbolList(symbolList);
}
/// <summary>
/// Reads JJs symbols.txt and checks to see if the zip files exist.
/// </summary>
/// <param name="symbolFileInfo"></param>
/// <returns>true if they all do</returns>
public static bool CheckJJList(FileInfo symbolFileInfo)
{
List <string> noexchange = new List <string>();
Dictionary <string, string> symbolDictionary = new Dictionary <string, string>();
//SymbolListBuilder builder = new SymbolListBuilder();
string symbols = string.Empty;
using (StreamReader sr = new StreamReader(symbolFileInfo.FullName))
{
try
{
while (!sr.EndOfStream)
{
string symbol = sr.ReadLine();
if (!string.IsNullOrEmpty(symbol))
{
symbolDictionary.Add(symbol, "");
}
}
}
catch (Exception ex)
{
Console.WriteLine("The file could not be read:");
Console.WriteLine(ex.Message);
}
}
var uriBuilder = new DownloadURIBuilder("NYSE", "AAMRQ");
foreach (var ticker in symbolDictionary)
{
uriBuilder.SetTickerName(ticker.Key);
uriBuilder.SetExchangeName(ticker.Value);
var uri = uriBuilder.GetGetPricesUrlToDownloadAllData(DateTime.Now);
var wClient = new WebClient();
byte[] buf = wClient.DownloadData(uri);
string rstring = Encoding.Default.GetString(buf);
bool found = false;
if (rstring.Length > 0)
{
string[] lines = rstring.Split('\n');
foreach (string line in lines)
{
if (line.StartsWith("a"))
{
found = true;
break;
}
}
if (!found)
{
noexchange.Add(ticker.Key);
}
}
}
// deletes any old bad csv files and writes new ones
SaveBadSymbolList(new FileInfo(symbolFileInfo.FullName.Replace("txt", "csv")), noexchange);
if (noexchange.Count > 0)
{
System.Diagnostics.Debug.WriteLine("There were bad symbols in JJs List");
return(false);
}
return(true);
}