public void DITaxesCalculator()
{
// Define flag to stop reading the rest of the document after DI1 entries are read
bool entriesFlagDI1 = false;
foreach (string line in File.ReadLines(bdfilePath))
{
if (line.Substring(21, 3).Equals("DI1"))
{
entriesFlagDI1 = true;
// Now calculating each tax
string taxDate = line.Substring(36, 8);
int cotationAj = int.Parse(line.Substring(231, 13));
int workingDays = int.Parse(line.Substring(388, 5));
double DITax = Math.Pow((10000000.0 / (cotationAj)), (252.0 / workingDays)) - 1;
DITaxes.Add(taxDate, DITax);
}
else
{
if (entriesFlagDI1)
{
// There are no more DI1 entries to read on the file, interrupt in order to have better performance
break;
}
}
}
// Saving the computed results on a XML file for faster retrieval if the same Date is requested later
BDDownloader.SaveDates(DITaxes, curveDate);
}
protected void LoadDate_Click(object sender, EventArgs e)
{
// First check if the date is already on the server as a XML file. If thats the case, wont need to parse the whole BD txt file from
string XMLFile = BDDownloader.findDateOnServer(Calendar1.SelectedDate);
if (!(XMLFile.Equals("XML NOT FOUND")))
{
// XML is on the server, only need to retrieve the taxes from the file
// Updating flag
DateisLoded = true;
// DI1 taxes calculator init
TaxesCalc = new TaxesCalculator(XMLFile, Calendar1.SelectedDate);
TaxesCalc.DITaxesRetrieve();
}
// If XML file is not found, download de BD from the internet
else
{
string downloadedFile = BDDownloader.GetBDfromDate(Calendar1.SelectedDate);
// If there are results from previous iteration, clean it
Clean_Results();
if (downloadedFile.Equals("WebException ERROR"))
{
// Write something to text in the middle
Clean_Results();
TaxesTitle.Text = "<h2>" + "Não foi possível obter as taxas do dia carregado (" + Calendar1.SelectedDate.ToShortDateString() + ") </h2>";
// Early return, did not succeed in getting taxes of the SelectedDate, also saving variable states
ViewState["DateisLoaded"] = false;
ViewState["TaxesCalc"] = TaxesCalc;
return;
}
else
{
// Updating flag
DateisLoded = true;
// DI1 taxes calculator init
TaxesCalc = new TaxesCalculator(downloadedFile, Calendar1.SelectedDate);
TaxesCalc.DITaxesCalculator();
}
}
// Writing the Taxes table
TaxesTitle.Text = "<h2>" + "Taxas DI de " + Calendar1.SelectedDate.ToShortDateString() + "</h2>";
StringBuilder TaxesListTemp = new StringBuilder();
TaxesListTemp.Append("<div id = \"DITaxesTable\" style=\"overflow: auto; max-height: 19em;\"> <table class=\"table table-bordered\"><thead> <tr> <th>Data</th><th>Taxa DI</th></tr></thead><tbody>");
foreach (KeyValuePair <string, double> tax in TaxesCalc.GetDITaxes())
{
TaxesListTemp.Append("<tr><td>" + (tax.Key.Substring(6, 2) + @"/" + tax.Key.Substring(4, 2) + @"/" + tax.Key.Substring(0, 4)) + "</td> <td>" + (tax.Value).ToString("P") + " </td></tr>");
}
TaxesListTemp.Append("</tbody></table></div>");
TaxesList.Text = TaxesListTemp.ToString();
// Saving the variables values between Sessions
ViewState["DateisLoaded"] = DateisLoded;
ViewState["TaxesCalc"] = TaxesCalc;
}
