/// <summary>
/// Load existing file to memory, set filenumber
/// </summary>
private void LoadExistingFilesBeforeStart()
{
IOrderedEnumerable<string> existingFilesBeforeStart = Directory.GetFiles(this._DirectoryName).OrderBy(o =>
{
int fileNumber = 0;
if (int.TryParse(Path.GetFileNameWithoutExtension(Path.GetFileName(o)), out fileNumber))
{
return fileNumber;
}
else
{
return 0;
}
});
MemoryBatch memoryBatch = new MemoryBatch();
foreach (string fileName in existingFilesBeforeStart)
{
memoryBatch.LoadFromFile(fileName);
if (memoryBatch.FileNames.Count >= this._BatchSize)
{
this._Queue.Enqueue(memoryBatch);
memoryBatch = new MemoryBatch();
}
}
if (memoryBatch.FileNames.Count > 0)
{
this._Queue.Enqueue(memoryBatch);
}
int result = 0;
if (existingFilesBeforeStart != null)
{
foreach (string fileName in existingFilesBeforeStart)
{
int fileNumber = 0;
if (int.TryParse(Path.GetFileNameWithoutExtension(Path.GetFileName(fileName)), out fileNumber) && fileNumber > result)
{
result = fileNumber;
}
}
}
this._FileNumber = result + 1;
this._HasPendingQuotationsBeforeStart = (this._Queue.Count > 0);
}
private bool Add(IEnumerable<iExchange.Common.OriginQuotation> originQuotations, IEnumerable<iExchange.Common.OverridedQuotation> overridedQuotations)
{
if (originQuotations == null && overridedQuotations == null) return true;
try
{
string fileName;
lock (this._QueueLock)
{
fileName = string.Format("{0}\\{1}.txt", this._DirectoryName, this._FileNumber);
if (this._ActiveMemoryBatch == null)
{
this._ActiveMemoryBatch = new MemoryBatch();
this._Queue.Enqueue(this._ActiveMemoryBatch);
}
this._ActiveMemoryBatch.Add(originQuotations, overridedQuotations, fileName);
if (this._ActiveMemoryBatch.FileNames.Count >= this._BatchSize)
{
this._ActiveMemoryBatch = null;
}
this._FileNumber++;
}
using (StreamWriter streamWriter = new StreamWriter(fileName, true))
{
if (originQuotations != null)
{
foreach (iExchange.Common.OriginQuotation originQuotation in originQuotations)
{
streamWriter.Write(originQuotation.ToQuotationFileItem());
}
}
if (overridedQuotations != null)
{
foreach (iExchange.Common.OverridedQuotation overridedQuotation in overridedQuotations)
{
streamWriter.Write(overridedQuotation.ToQuotationFileItem());
}
}
}
return true;
}
catch (Exception exception)
{
AppDebug.LogEvent("QuotationServer", string.Format("DatabaseBatch.Add Error: {0}", exception), EventLogEntryType.Error);
return false;
}
}
internal bool Add(MemoryBatch memoryBatch)
{
try
{
foreach (iExchange.Common.OriginQuotation originQuotation in memoryBatch.OriginQuotations)
{
DataTable dataTable = null;
int day = originQuotation.Timestamp.Day;
if (this._OriginDataTables.ContainsKey(day))
{
dataTable = this._OriginDataTables[day];
}
else
{
dataTable = this.CreateEmptyDataTable(true);
this._OriginDataTables.Add(day, dataTable);
}
DataRow row = dataTable.NewRow();
row["InstrumentId"] = originQuotation.InstrumentID;
row["Timestamp"] = originQuotation.Timestamp;
row["Day"] = day;
row["Ask"] = originQuotation.Ask;
row["Bid"] = originQuotation.Bid;
row["High"] = originQuotation.High;
row["Low"] = originQuotation.Low;
if (!string.IsNullOrEmpty(originQuotation.Volume))
{
row["Volume"] = double.Parse(originQuotation.Volume);
}
dataTable.Rows.Add(row);
// update LastSessionLastOriginQuotations
DataRow originRow = null;
if (this._LastSessionLastOriginQuotationRows.ContainsKey(originQuotation.InstrumentID))
{
originRow = this._LastSessionLastOriginQuotationRows[originQuotation.InstrumentID];
}
else
{
originRow = this._LastSessionLastOriginQuotationTable.NewRow();
originRow["InstrumentId"] = originQuotation.InstrumentID;
this._LastSessionLastOriginQuotationTable.Rows.Add(originRow);
this._LastSessionLastOriginQuotationRows.Add(originQuotation.InstrumentID, originRow);
}
originRow["Timestamp"] = originQuotation.Timestamp;
originRow["Day"] = originQuotation.Timestamp.Day;
originRow["Ask"] = originQuotation.Ask;
originRow["Bid"] = originQuotation.Bid;
originRow["High"] = originQuotation.High;
originRow["Low"] = originQuotation.Low;
if (string.IsNullOrEmpty(originQuotation.Volume))
{
originRow["Volume"] = DBNull.Value;
}
else
{
originRow["Volume"] = double.Parse(originQuotation.Volume);
}
//
}
foreach (iExchange.Common.OverridedQuotation overridedQuotation in memoryBatch.OverridedQuotations)
{
DataTable dataTable = null;
int day = overridedQuotation.Timestamp.Day;
if (this._OverridedDataTables.ContainsKey(day))
{
dataTable = this._OverridedDataTables[day];
}
else
{
dataTable = this.CreateEmptyDataTable(false);
this._OverridedDataTables.Add(day, dataTable);
}
DataRow row = dataTable.NewRow();
row["InstrumentId"] = overridedQuotation.InstrumentID;
row["QuotePolicyId"] = overridedQuotation.QuotePolicyID;
row["Timestamp"] = overridedQuotation.Timestamp;
row["Day"] = day;
row["Origin"] = overridedQuotation.Origin;
row["Ask"] = overridedQuotation.Ask;
row["Bid"] = overridedQuotation.Bid;
row["High"] = overridedQuotation.High;
row["Low"] = overridedQuotation.Low;
row["DealerId"] = overridedQuotation.DealerID;
if (string.IsNullOrEmpty(overridedQuotation.Volume))
{
row["Volume"] = DBNull.Value;
}
else
{
row["Volume"] = double.Parse(overridedQuotation.Volume);
}
dataTable.Rows.Add(row);
// update LastSessionLastOverridedQuotations
DataRow overridedRow = null;
Dictionary<Guid, DataRow> overridedRows = null;
if (this._LastSessionLastOverridedQuotationRows.ContainsKey(overridedQuotation.InstrumentID))
{
overridedRows = this._LastSessionLastOverridedQuotationRows[overridedQuotation.InstrumentID];
}
else
{
overridedRows = new Dictionary<Guid, DataRow>();
this._LastSessionLastOverridedQuotationRows.Add(overridedQuotation.InstrumentID, overridedRows);
}
if (overridedRows.ContainsKey(overridedQuotation.QuotePolicyID))
{
overridedRow = overridedRows[overridedQuotation.QuotePolicyID];
}
else
{
overridedRow = this._LastSessionLastOverridedQuotationTable.NewRow();
overridedRow["InstrumentId"] = overridedQuotation.InstrumentID;
overridedRow["QuotePolicyId"] = overridedQuotation.QuotePolicyID;
this._LastSessionLastOverridedQuotationTable.Rows.Add(overridedRow);
overridedRows.Add(overridedQuotation.QuotePolicyID, overridedRow);
}
overridedRow["Timestamp"] = overridedQuotation.Timestamp;
overridedRow["Day"] = overridedQuotation.Timestamp.Day;
overridedRow["Origin"] = overridedQuotation.Origin;
overridedRow["Ask"] = overridedQuotation.Ask;
overridedRow["Bid"] = overridedQuotation.Bid;
overridedRow["High"] = overridedQuotation.High;
overridedRow["Low"] = overridedQuotation.Low;
overridedRow["DealerId"] = overridedQuotation.DealerID;
if (string.IsNullOrEmpty(overridedQuotation.Volume))
{
overridedRow["Volume"] = DBNull.Value;
}
else
{
overridedRow["Volume"] = double.Parse(overridedQuotation.Volume);
}
//
}
this._FileNames.AddRange(memoryBatch.FileNames);
return true;
}
catch (Exception exception) // stream exception or file delete exception
{
Manager.Common.Logger.TraceEvent(TraceEventType.Error, "QuotationServer\r\nDatabaseBatch.Add error: {0}", exception);
throw;
}
}
///////////////////////////////////////////////////
//save memory quotations to database
///////////////////////////////////////////////////
public bool SaveMemoryToDatabase()
{
try
{
//AppDebug.LogEvent("QuotationServer", string.Format("begin QuotationFileCache.SaveMemoryToDatabase, Queue.Count={0}", this._Queue.Count), EventLogEntryType.Information);
lock (this._QueueLock)
{
while (this._Queue.Count > 0)
{
MemoryBatch memoryBatch = this._Queue.Peek();
DatabaseBatch databaseBatch = new DatabaseBatch(memoryBatch);
if (this.SaveDatabaseBatch(databaseBatch))
{
databaseBatch.Clear();
this._Queue.Dequeue();
}
if (this._Queue.Count == 0 && this._ActiveMemoryBatch != null)
{
this._ActiveMemoryBatch = null;
}
}
}
//AppDebug.LogEvent("QuotationServer", string.Format("end QuotationFileCache.SaveMemoryToDatabase, Queue.Count={0}", this._Queue.Count), EventLogEntryType.Information);
return true;
}
catch (Exception exception)
{
AppDebug.LogEvent("QuotationServer", string.Format("QuotationFileCache.SaveMemoryToDatabase error: {0}", exception), EventLogEntryType.Error);
return false;
}
}
internal DatabaseBatch(MemoryBatch memoryBatch)
: this()
{
this.Add(memoryBatch);
}
