}// GetSettlementOffsets()
//
//
// *************************************************
// **** ****
// *************************************************
public bool TryFindMatchingEntry(InstrumentName instrumentName, out ProductSettlementEntry foundEntry)
{
foundEntry = null;
foreach (ProductSettlementEntry entry in this.Rows)
{
if (entry.IsMatching(instrumentName))
{
foundEntry = entry; // since entries sorted from MOST specific to least, as soon as we find a match, we break.
return(true);
}
}
return(false);
}// TryFindMatchingEntry()
//
/// <summary>
/// Method used to create a Settlement table from a file path.
/// </summary>
/// <param name="filePath"></param>
/// <param name="newTable"></param>
/// <returns>true if table is created</returns>
public static bool TryCreate(string filePath, out ProductSettlementTable newTable, DateTime settlement)
{
newTable = null;
//
// Load file, remove comments.
//
string[] fileLines = null;
try
{
fileLines = System.IO.File.ReadAllLines(filePath); // raw lines from file.
}
catch (Exception)
{
return(false);
}
List <string> cleanLines = new List <string>(); // lines cleaned of comments etc.
foreach (string aLine in fileLines)
{
int n = aLine.IndexOf("//");
string s = aLine;
if (n > -1)
{
s = aLine.Substring(0, n);
}
s = s.Trim();
if (!string.IsNullOrEmpty(s))
{
cleanLines.Add(s);
}
}
//
// Create table.
//
newTable = new ProductSettlementTable();
foreach (string aLine in cleanLines)
{
ProductSettlementEntry newEntry;
if (ProductSettlementEntry.TryCreate(aLine, out newEntry, settlement))
{
newEntry.IgnoreCaseOfNames = newTable.IgnoreCaseOfNames;
newTable.Rows.Add(newEntry);
// Report
StringBuilder s = new StringBuilder();
TimeZoneInfo tzLocal = TimeZoneInfo.Local;
DateTime settle = DateTime.Now.Date;
DateTime foreignSettle = new DateTime(settle.Year, settle.Month, settle.Day, 0, 0, 0, DateTimeKind.Unspecified);
foreignSettle = foreignSettle.Add(newEntry.SettleTime);
TimeZoneInfo foreignTZ = newEntry.TZInfo;
try
{
DateTime settleLocal = TimeZoneInfo.ConvertTime(foreignSettle, foreignTZ, tzLocal);
s.AppendFormat("{0} ---> Local Settlement: {1}", newEntry, settleLocal);
}
catch (Exception e)
{
s.AppendFormat("{0}", e.Message);
}
Console.WriteLine(s.ToString());
}
}
newTable.Rows.Sort(ProductSettlementEntry.CompareEntriesBySpecificity);
return(true);
}//TryCreate()
//
//
#endregion // Public methods
#region Public Static Methods
// *****************************************************************
// **** Public Static Methods ****
// *****************************************************************
//
/// <summary>
/// Used for sorting, returns something like sign(x - y) = {+1,-1,0}.
/// Earlier items are "smaller", so we want to make more specific entries "smaller"
/// so that it looping thru we stop as soon as there is a match.
/// Most specific entries define all (Exchange,ProductType,Product) properties have smalles values.
/// then Exchange,ProductType, then Exchange, then empty.
/// The null entry says nothing, so its the largest object. As such, this comparison views
/// the entries as the "size" of their Venn diagrams.
/// </summary>
/// <returns>+1,-1, 0 = sign(x-y)</returns>
public static int CompareEntriesBySpecificity(ProductSettlementEntry x, ProductSettlementEntry y)
{
if (x == null)
{
if (y == null)
{
return(0); // both are equal
}
else
{
return(+1); // x is null, so its biggest.
}
}
else
{
if (y == null)
{
return(-1); // y is null, so its the biggest.
}
else
{ // Neither are null, must really compare them.
// Product names first:
if (string.IsNullOrWhiteSpace(x.Product))
{ // x has no product field, it looks pretty general (big).
if (!string.IsNullOrWhiteSpace(y.Product))
{
return(+1); // y is more specific, smaller!
}
}
else
{ // x has a product field.
if (string.IsNullOrWhiteSpace(y.Product))
{
return(-1); // y is more general, its bigger!
}
else
{
return(string.Compare(x.Product, y.Product));// both very specific, user alphabetical order.
}
}
// ProductType test:
// Last test was not conclusive, (neither have product name).
if (x.Type == Misty.Lib.Products.ProductTypes.Unknown)
{ // x has no type!
if (y.Type != Misty.Lib.Products.ProductTypes.Unknown)
{
return(+1); // y is more specific, smaller.
}
}
else
{ // x has a type!
if (y.Type == Misty.Lib.Products.ProductTypes.Unknown)
{
return(-1); // y is more general, bigger.
}
else
{
return(x.Type.CompareTo(y.Type));
}
}
// Exchange test:
if (string.IsNullOrWhiteSpace(x.Exchange))
{
if (string.IsNullOrWhiteSpace(y.Exchange))
{
return(+1);
}
}
else
{
if (string.IsNullOrWhiteSpace(y.Exchange))
{
return(-1); // y is more general, bigger.
}
else
{
return(string.Compare(x.Exchange, y.Exchange, true));
}
}
// No test could distinguish between x,y; they are equal.
return(0);
} // neither x,y is null.
}
} //CompareEntriesBySpecificity()
//
public static bool TryCreate(string aLine, out ProductSettlementEntry newEntry, DateTime settmentDate)
{
newEntry = null;
string[] elements = aLine.Split(',');
if (elements.Length < ProductSettlementEntry.NumberOfFields)
{
return(false);
}
newEntry = new ProductSettlementEntry();
// Load - Exchange name
int elem = 0;
if (!string.IsNullOrWhiteSpace(elements[elem]))
{
newEntry.Exchange = elements[elem].Trim();
}
elem++;
// Load - Product name
if (!string.IsNullOrWhiteSpace(elements[elem]))
{
newEntry.Product = elements[elem].Trim();
}
elem++;
// Load - Product type
if (!string.IsNullOrWhiteSpace(elements[elem]))
{
ProductTypes type;
if (Enum.TryParse <ProductTypes>(elements[elem].Trim(), out type))
{
newEntry.Type = type;
}
}
elem++;
//
// Load - Timezone name
//
if (!string.IsNullOrWhiteSpace(elements[elem]))
{
TimeZoneInfo tzInfo = null;
try
{
tzInfo = TimeZoneInfo.FindSystemTimeZoneById(elements[elem].Trim());
newEntry.TZInfo = tzInfo;
}
catch (Exception)
{
return(false);
}
}
elem++;
// Load - settlement time in local time of exchange.
if (!string.IsNullOrWhiteSpace(elements[elem]))
{
TimeSpan time;
if (TimeSpan.TryParse(elements[elem].Trim(), out time))
{
//newEntry.MinuteOffset = (int)(MinutesPerHour * x);
newEntry.SettleTime = time;//.Subtract(time.TimeOfDay);
}
else
{
return(false); // This is necessary!
}
}
elem++;
// Exit.
return(newEntry.TryInitialize(settmentDate));;
}//TryCreate()
