private ReportDataHeaderCollection ParseHeaders(JArray data, string[] tailLabels)
{
var headers = new List <ReportDataHeader>();
int span = 0;
for (int i = 0; i < data.Count; i++)
{
var header = ParseHeader(data[i], 0, span, tailLabels, i);
headers.Add(header);
span += header.Span;
}
if (headers.Count == 0)
{
return(ReportDataHeaderCollection.Empty);
}
// Don't sort the tail columns.
if (tailLabels != null && headers[0].Children.Count == 0)
{
return(ReportDataHeaderCollection.New(headers));
}
return(ReportDataHeaderCollection.NewSorted(headers));
}
private ReportDataHeader ParseHeader(JToken data, int level, int offset, string[] tailLabels, int tailIndex)
{
if (data.Type != JTokenType.Array)
{
string label;
if (tailLabels != null)
{
label = tailLabels[tailIndex];
}
else
{
label = (string)data;
if (String.IsNullOrEmpty(label))
{
label = null;
}
}
return(new ReportDataHeader(
label,
level,
offset,
1,
ReportDataHeaderCollection.Empty
));
}
var subData = (JArray)data;
int span = 0;
var children = new List <ReportDataHeader>();
for (int i = 1; i < subData.Count; i++)
{
var header = ParseHeader(subData[i], level + 1, offset + span, tailLabels, i - 1);
children.Add(header);
span += header.Span;
}
if (span == 0)
{
span = 1;
}
var subLabel = (string)subData[0];
if (String.IsNullOrEmpty(subLabel))
{
subLabel = null;
}
// Don't sort the tail columns.
ReportDataHeaderCollection childHeaders;
if (children.Count == 0)
{
childHeaders = ReportDataHeaderCollection.Empty;
}
else if (tailLabels != null && children[0].Children.Count == 0)
{
childHeaders = ReportDataHeaderCollection.New(children);
}
else
{
childHeaders = ReportDataHeaderCollection.NewSorted(children);
}
return(new ReportDataHeader(
subLabel,
level,
offset,
span,
childHeaders
));
}