/// <summary>
/// get the list of available engines
/// </summary>
public void GetEngines(MicexISSDataHandler myhandler)
{
myhandler.EnginesStorage = new Dictionary <string, string>();
try
{
var reply = GetReply(_urls["engines"]);
var engines = GetDataBlock(XDocument.Parse(reply), "engines");
if (!engines.HasElements)
{
return;
}
var rows = GetRows(engines);
if (!rows.HasElements)
{
return;
}
foreach (var el in rows.Elements())
{
myhandler.Process_engines(GetAttribute(el, "name"), GetAttribute(el, "title"));
}
}
catch (Exception e)
{
MessageBox.Show("Error while processing XML with engines: " + e.Message);
}
}
/// <summary>
/// get the list of boards on a given engine and a given market
/// </summary>
public void GetBoards(string engineName, string marketName, MicexISSDataHandler myhandler)
{
myhandler.BoardsStorage = new Dictionary <string, string>();
try
{
var reply = GetReply(String.Format(_urls["boards"], engineName, marketName));
var boards = GetDataBlock(XDocument.Parse(reply), "boards");
if (!boards.HasElements)
{
return;
}
var rows = GetRows(boards);
if (!rows.HasElements)
{
return;
}
foreach (var el in rows.Elements())
{
myhandler.Process_boards(GetAttribute(el, "boardid"), GetAttribute(el, "title"));
}
}
catch (Exception e)
{
MessageBox.Show("Error while processing XML with boards: " + e.Message);
}
}
/// <summary>
/// full cycle to get the end-of-day results
/// only Security ID, number of trades and the official close price are stored in this example
/// </summary>
public void GetHistorySecurities(String engine, String market, String board, String histdate, MicexISSDataHandler myhandler)
{
var start = 0;
var replyLen = 1;
myhandler.HistoryStorage = new List <Tuple <string, double, uint> >();
try
{
// it is very important to keep in mind that the server reply can be split into serveral pages,
// so we use the 'start' argument to the request
while (replyLen > 0)
{
replyLen = 0;
var fullurl = String.Format(_urls["history_secs"], engine, market, board, histdate, start);
var reply = GetReply(fullurl);
// get the data block with historical data
// we ignore metadata in this example
var history = GetDataBlock(XDocument.Parse(reply), "history");
if (history.HasElements)
{
var rows = GetRows(history);
if (rows.HasElements)
{
foreach (var el in rows.Elements())
{
var secid = GetAttribute(el, "SECID");
var numtrades = UInt32.Parse(GetAttribute(el, "NUMTRADES"));
// need to use Val instead of Convert or CDbl, because the ISS float numbers always come with. as the delimiter
var closeprice = 0.0;
if (Double.TryParse(GetAttribute(el, "LEGALCLOSEPRICE"), out var parcedDouble))
{
closeprice = parcedDouble;
}
myhandler.Process_history(secid, closeprice, numtrades);
}
replyLen = rows.Elements().Count();
}
}
start = start + replyLen;
}
}
catch (Exception e)
{
MessageBox.Show("Error while processing XML with history_secs: " + e.Message);
}
}
