/// <summary>
/// Calculate fragment ion labels.
/// </summary>
/// <param name="ionTypes">List of IonTypes.</param>
/// <param name="labelModifications">The heavy/light labels.</param>
/// <returns>A list of fragment labeled ions.</returns>
public List <LabeledIonViewModel> GetFragmentLabels(IList <IonType> ionTypes, SearchModification[] labelModifications = null)
{
var fragmentLabelList = new List <LabeledIonViewModel> {
Capacity = Sequence.Count * ionTypes.Count * Charge
};
if (Sequence.Count < 1 || LcMsRun == null)
{
return(fragmentLabelList);
}
var sequence = labelModifications == null ? Sequence : IonUtils.GetHeavySequence(Sequence, labelModifications);
var precursorIon = IonUtils.GetPrecursorIon(sequence, Charge);
var tasks = new List <Task <object> >();
// Define a delegate that prints and returns the system tick count
Func <object, List <LabeledIonViewModel> > action = (object type) =>
{
IonType iType = (IonType)type;
var ionFragments = new List <LabeledIonViewModel>();
for (var i = 1; i < Sequence.Count; i++)
{
var startIndex = iType.IsPrefixIon ? 0 : i;
var length = iType.IsPrefixIon ? i : sequence.Count - i;
var fragment = new Sequence(Sequence.GetRange(startIndex, length));
var ions = iType.GetPossibleIons(fragment);
foreach (var ion in ions)
{
lock (cacheLock)
{
var labeledIonViewModel = fragmentCache.Get(new Tuple <Composition, IonType>(ion.Composition, iType));
labeledIonViewModel.Index = length;
labeledIonViewModel.PrecursorIon = precursorIon;
ionFragments.Add(labeledIonViewModel);
}
}
if (!iType.IsPrefixIon)
{
ionFragments.Reverse();
}
}
return(ionFragments);
};
foreach (var ionType in ionTypes)
{
tasks.Add(Task <object> .Factory.StartNew(action, ionType));
}
Task.WaitAll(tasks.ToArray());
foreach (Task <object> task in tasks)
{
List <LabeledIonViewModel> list = (List <LabeledIonViewModel>)task.Result;
fragmentLabelList.AddRange(list);
}
return(fragmentLabelList);
}
