public void Sort()
{
logger.Info("Entered");
try
{
if (SortingFields.Count == 0)
{
logger.Warn("No sorting field is found to sort data, please set a sorting field first");
throw new InvalidOperationException("No sorting field is found to sort data, please set a sorting field first");
}
SortingField rootSF = SortingFields[0];//xpath is null form grid
var endElement = workflowFile.RootNode.Descendants(rootSF.GetLeafName()).First();
var parentElement = endElement.Parent;
var grandParentElement = parentElement.Parent;
if (grandParentElement == null)
{
TwoLevelSort(rootSF);
}
else
{
MultiLevelSort(rootSF, grandParentElement, parentElement);
}
}
catch (Exception ex)
{
logger.Error(ex, "XML Sorting Error, DataFile {0}", workflowFile.FilePath);
throw ex;
}
logger.Info("Leaving");
}
/// <summary>
/// Called by multi level child nodes for second level ordering
/// </summary>
/// <param name="orderNodeTree"></param>
/// <param name="sf"></param>
/// <returns></returns>
public IOrderedEnumerable <XElement> Process(IOrderedEnumerable <XElement> orderNodeTree, SortingField sf)
{
string elementName = sf.GetLeafName();
if (sf.SortingType == SortingType.Ascending)
{
orderNodeTree = orderNodeTree.ThenBy(m => m.Element(elementName).Value, sf.GetComparer());
}
else
{
orderNodeTree = orderNodeTree.ThenByDescending(m => m.Element(elementName).Value, sf.GetComparer());
}
return(orderNodeTree);
}