/// <summary>
/// Get, create, or update the current dictionary that gives uniqueness information for peptides of interest.
/// </summary>
/// <param name="peptideSettings">enzyme info in case we need to perform digestion</param>
/// <param name="peptidesOfInterest">this is a dictionary instead of a list only because we need an efficient lookup, and caller will already have created this which can be large and expensive to construct.</param>
/// <param name="progressMonitor">cancellation checker</param>
/// <returns>updated peptide settings with uniqueness information for peptides of interest</returns>
public Dictionary <Target, DigestionPeptideStats> GetUniquenessDict(PeptideSettings peptideSettings, Dictionary <Target, bool> peptidesOfInterest, SrmSettingsChangeMonitor progressMonitor)
{
// Do we have a cached dictionary suitable to the task?
var enzyme = peptideSettings.Enzyme;
if (!(enzyme.Name != _enzymeNameForPeptideUniquenessDictDigest || peptidesOfInterest.Keys.Any(pep => !_peptideUniquenessDict.ContainsKey(pep))))
{
return(_peptideUniquenessDict); // No change needed
}
if (!_parent.UpdateProgressAndCheckForCancellation(progressMonitor, 0))
{
return(null); // Cancelled
}
// Any peptides we were interested in before (ie in the current dict if any) are likely still
// interesting in future calls, even if not of immediate interest
foreach (var seq in _peptideUniquenessDict.Where(i => !peptidesOfInterest.ContainsKey(i.Key)))
{
peptidesOfInterest.Add(seq.Key, true);
}
var newDict = _parent.GetPeptidesAppearanceCounts(peptidesOfInterest, enzyme, peptideSettings, progressMonitor);
if (newDict == null)
{
return(null); // Cancelled
}
if (!Equals(enzyme.Name, _enzymeNameForPeptideUniquenessDictDigest))
{
_peptideUniquenessDict = new Dictionary <Target, DigestionPeptideStats>();
}
else
{
_peptideUniquenessDict = _peptideUniquenessDict.ToDictionary(s => s.Key, s => s.Value);
}
foreach (var pair in newDict)
{
if (!_peptideUniquenessDict.ContainsKey(pair.Key))
{
_peptideUniquenessDict.Add(pair.Key, pair.Value);
}
else
{
_peptideUniquenessDict[pair.Key] = pair.Value;
}
}
_enzymeNameForPeptideUniquenessDictDigest = enzyme.Name;
if (!_parent.UpdateProgressAndCheckForCancellation(progressMonitor, 100))
{
return(null); // Cancelled
}
return(_peptideUniquenessDict);
}
