private void OnTimer(object sender, EventArgs e)
{
// any lines to copy in
int addedLines = 0;
lock (fixGui.Lines)
{
lock (fixFile.Lines)
{
while (fixGui.Lines.Count < fixFile.Lines.Count)
{
LineTag lt = fixFile.Lines[fixGui.Lines.Count];
Line ln = new Line(lt);
fixGui.Lines.Add(ln);
addedLines++;
}
}
}
if (addedLines > 0)
{
l.Info("Added {0} lines", addedLines);
}
string state = fixFile.GetStatus();
if (this.Title != state)
{
this.Title = state;
}
}
// addTrail - if the message relates to an order, add to the list of
// messages for that order
private void addTrail(LineTag tag)
{
// extract relevant order is's (Cloid,OrigCloid)
List <String> idents = new List <string>();
if (tag.fields.ContainsKey("11")) // new
{
idents.Add(tag.fields["11"]);
}
if (tag.fields.ContainsKey("41"))
{
idents.Add(tag.fields["41"]); // orig
}
// if none, nothing to do
if (idents.Count == 0)
{
return;
}
// See if we can find an existing order trail using orderid's quickIndex
// is used to map an order id to an order trail
OrderTrail ot = null;
foreach (String s in idents)
{
if (quickIndex.ContainsKey(s))
{
// yes - remember it
ot = quickIndex[s];
break;
}
}
// no - must be new
if (ot == null)
{
ot = new OrderTrail();
}
// add any missing keys to quickindex and point to the order trail
foreach (String s in idents)
{
if (!quickIndex.ContainsKey(s))
{
quickIndex[s] = ot;
}
}
// add the new line to the order trail
ot.lines.Add(tag);
// and point to the order trail from the line
tag.orderTrail = ot;
}
// Called from main GUI, passes us a line, hide all lines not relevant to the order
// and unhide relevant ones using the order trail
public void SetOrderFilter(LineTag fl)
{
// Hide all lines
lock (lines)
{
foreach (LineTag l in lines)
{
l.hide = true;
}
}
// unhide lines in the order trail
foreach (LineTag l in fl.orderTrail.lines)
{
l.hide = false;
}
}
// the file reader thread
private void readFixFile()
{
ignoreHB = true; // ignore heartbeats
state = "Loading";
// Open file & enter main loop. when running is set to false we will stop
StreamReader reader = new StreamReader(new FileStream(fixFile, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
while (running)
{
string line = "";
// read all available lines, when we get to the end we will just repeat
// until there is more to read
while (running && (line = reader.ReadLine()) != null)
{
lineNumber++;
// create a tag for this line, initially it just holds the lines text
curTag = new LineTag(line);
// parse it splitting it into tag/value pairs, if it parses ok, add it to lines
if (parseFix())
{
add(curTag);
}
else
{
curTag = null;
}
}
// reached end of data, set new state & wait for more to appear
state = "Following";
l.Debug("End of block in {0}, size now {1} lines.", fixFile, lastLine);
System.Threading.Thread.Sleep(50); // teeny sleep so we dont hog processor
}
l.Info("MON thread stopped");
running = true;
}
// add - adds a line to the line list
private void add(LineTag tag)
{
// extract order type and save seperatly
if (tag.fields.ContainsKey("35"))
{
tag.type = tag.fields["35"];
}
// if its a heartbeat and set to ignore them, just return here
if (tag.type == "0" && ignoreHB)
{
return;
}
// add the line to the lines list. We need to lock the list as it is shared by GUI thread
lock (lines)
{
lines.Add(tag);
lastLine++;
}
// add to order trail
addTrail(tag);
}
public Line(LineTag tag)
{
this.tag = tag;
}
