//allows derived classes to override the default streaming
//and save method
protected virtual async Task <bool> StreamAndSaveCalculationAsync()
{
bool bHasCalculations = false;
//both calculators and analyzers use observationpath for initial file
if (!CalculatorHelpers.URIAbsoluteExists(this.GCCalculatorParams.ExtensionDocToCalcURI,
this.GCCalculatorParams.AnalyzerParms.ObservationsPath))
{
this.GCCalculatorParams.AnalyzerParms.ObservationsPath
= this.GCCalculatorParams.ExtensionDocToCalcURI.URIDataManager.TempDocPath;
}
if (!CalculatorHelpers.URIAbsoluteExists(this.GCCalculatorParams.ExtensionDocToCalcURI,
this.GCCalculatorParams.AnalyzerParms.ObservationsPath))
{
return(bHasCalculations);
}
//new temporary path to store calculator results
StringWriter output = new StringWriter();
this.GCCalculatorParams.DocToCalcReader = await CalculatorHelpers.GetXmlReaderAsync(
this.GCCalculatorParams.ExtensionDocToCalcURI, this.GCCalculatorParams.AnalyzerParms.ObservationsPath);
if (this.GCCalculatorParams.DocToCalcReader != null)
{
using (this.GCCalculatorParams.DocToCalcReader)
{
XmlWriterSettings writerSettings = new XmlWriterSettings();
writerSettings.OmitXmlDeclaration = true;
writerSettings.Indent = true;
//writerSettings.Async = true;
using (XmlWriter writer = XmlWriter.Create(
output, writerSettings))
{
XStreamingElement root = new XStreamingElement(Constants.ROOT_PATH,
from el in StreamRoot()
select el);
root.Save(writer);
//alternative pattern
////now process each task as it writes
//bool[] hasCalcs = await Task.WhenAll(_lvTasks);
//for (int i = 0; i < hasCalcs.Count(); i++)
//{
// bool bHasCalc = hasCalcs[i];
//}
}
}
}
using (output)
{
if (this.GCCalculatorParams.ErrorMessage == string.Empty)
{
//move the new calculations to tempDocToCalcPath
//this returns an error msg
this.GCCalculatorParams.ErrorMessage = await CalculatorHelpers.MoveURIsAsync(
this.GCCalculatorParams.ExtensionDocToCalcURI, output,
this.GCCalculatorParams.ExtensionDocToCalcURI.URIDataManager.TempDocPath);
bHasCalculations = true;
}
}
return(bHasCalculations);
}
//async calcs to complete
//List<Task<bool>> _lvTasks = new List<Task<bool>>();
//allows derived classes to override the default streaming
//and save method
protected virtual async Task <bool> StreamAndSaveCalculationAsync()
{
bool bHasCalculations = false;
//both calculators and analyzers use observationpath for initial file
if (!CalculatorHelpers.URIAbsoluteExists(this.GCCalculatorParams.ExtensionDocToCalcURI,
this.GCCalculatorParams.AnalyzerParms.ObservationsPath))
{
this.GCCalculatorParams.AnalyzerParms.ObservationsPath
= this.GCCalculatorParams.ExtensionDocToCalcURI.URIDataManager.TempDocPath;
}
if (!CalculatorHelpers.URIAbsoluteExists(this.GCCalculatorParams.ExtensionDocToCalcURI,
this.GCCalculatorParams.AnalyzerParms.ObservationsPath))
{
return(bHasCalculations);
}
//new temporary path to store calculator results
//when writing to file, close it with the using
StringWriter output = new StringWriter();
this.GCCalculatorParams.DocToCalcReader = await CalculatorHelpers.GetXmlReaderAsync(
this.GCCalculatorParams.ExtensionDocToCalcURI, this.GCCalculatorParams.AnalyzerParms.ObservationsPath);
if (this.GCCalculatorParams.DocToCalcReader != null)
{
using (this.GCCalculatorParams.DocToCalcReader)
{
XmlWriterSettings writerSettings = new XmlWriterSettings();
writerSettings.OmitXmlDeclaration = true;
writerSettings.Indent = true;
////can now write this this asynch
//writerSettings.Async = true;
using (XmlWriter writer = XmlWriter.Create(
output, writerSettings))
{
//180: switched to XStreaming, uses less memory until xml is written
XStreamingElement root = new XStreamingElement(Constants.ROOT_PATH,
from el in StreamingRoot()
select el);
//the write will omit xml declaration (allowing xslt transform)
//the write will also cause the calctasks to be completed
root.Save(writer);
//keep this code to verify that tasks are being completed once xml is serialized
//test whether or not this interferes with sequential completion of tasks for aggregation
////now process each task as it writes
//bool[] hasCalcs = await Task.WhenAll(_lvTasks);
//for (int i = 0; i < hasCalcs.Count(); i++)
//{
// bool bHasCalc = hasCalcs[i];
//}
}
}
}
//subsequent async method calls have to use Wait()
//or the async returns here without the completed calculations
//see SB1GeneralCalculatorAsync.RunCalculationsAndSetUpdatesAsync
using (output)
{
if (this.GCCalculatorParams.ErrorMessage == string.Empty)
{
//move the new calculations to tempDocToCalcPath
//this returns an error msg
this.GCCalculatorParams.ErrorMessage = await CalculatorHelpers.MoveURIsAsync(
this.GCCalculatorParams.ExtensionDocToCalcURI, output,
this.GCCalculatorParams.ExtensionDocToCalcURI.URIDataManager.TempDocPath);
bHasCalculations = true;
}
}
return(bHasCalculations);
}
