/// <summary>
/// Prepare the output file, write headers if needed.
/// </summary>
///
/// <param name="outputFile">The output file.</param>
///<returns>The file to write to.</returns>
private new StreamWriter PrepareOutputFile(FileInfo outputFile)
{
try
{
outputFile.Delete();
var tw = new StreamWriter(outputFile.OpenWrite());
// write headers, if needed
if (ProduceOutputHeaders)
{
var line = new StringBuilder();
// handle provided fields, not all may be used, but all should
// be displayed
foreach (String heading in InputHeadings)
{
AppendSeparator(line, Format);
line.Append("\"");
line.Append(heading);
line.Append("\"");
}
// now add the output fields that will be generated
foreach (AnalystField field in _analyst.Script.Normalize.NormalizedFields)
{
if (field.Output && !field.Ignored)
{
AppendSeparator(line, Format);
line.Append("\"Output:");
line.Append(CSVHeaders.TagColumn(field.Name, 0,
field.TimeSlice, false));
line.Append("\"");
}
}
tw.WriteLine(line.ToString());
}
return(tw);
}
catch (IOException e)
{
throw new QuantError(e);
}
}
/// <summary>
/// Write the headers.
/// </summary>
///
/// <param name="tw">The output stream.</param>
private void WriteHeaders(StreamWriter tw)
{
var line = new StringBuilder();
foreach (AnalystField stat in _analyst.Script.Normalize.NormalizedFields)
{
int needed = stat.ColumnsNeeded;
for (int i = 0; i < needed; i++)
{
AppendSeparator(line, InputFormat);
line.Append('\"');
line.Append(CSVHeaders.TagColumn(stat.Name, i,
stat.TimeSlice, needed > 1));
line.Append('\"');
}
}
tw.WriteLine(line.ToString());
}
/// <summary>
/// Add headings for a raw file.
/// </summary>
///
/// <param name="line">The line to write the raw headings to.</param>
/// <param name="prefix">The prefix to place.</param>
/// <param name="format">The format to use.</param>
public void AddRawHeadings(StringBuilder line,
String prefix, CSVFormat format)
{
int subFields = ColumnsNeeded;
for (int i = 0; i < subFields; i++)
{
String str = CSVHeaders.TagColumn(_name, i,
_timeSlice, subFields > 1);
BasicFile.AppendSeparator(line, format);
line.Append('\"');
if (prefix != null)
{
line.Append(prefix);
}
line.Append(str);
line.Append('\"');
}
}