public KnowledgeDistributionMap FlyInTime()
{
_logger.LogInformation("{datetime}: flying in time has started.", DateTime.Now);
var knowledgeMap = new KnowledgeDistributionMap()
{
CommitBasedKnowledgeMap = CommitBasedKnowledgeMap,
ReviewBasedKnowledgeMap = ReviewBasedKnowledgeMap,
PullRequestSimulatedRecommendationMap = PullRequestSimulatedRecommendationDic,
BlameBasedKnowledgeMap = BlameBasedKnowledgeMap,
PullRequestEffortKnowledgeMap = PullRequestEffortKnowledgeMap
};
foreach (var @event in _events)
{
if (@event is Commit)
{
_commit += 1;
UpdateCommitBasedKnowledgeMap(@event as Commit);
}
else if (@event is PullRequest)
{
UpdateReviewBasedKnowledgeMap(knowledgeMap, @event as PullRequest);
}
}
_logger.LogInformation("{datetime}: flying in time has finished.", DateTime.Now);
return(knowledgeMap);
}
private PullRequestContext GetPullRequestContext(PullRequest pullRequest, KnowledgeDistributionMap knowledgeMap)
{
var pullRequestFiles = PullRequestFilesDic.GetValueOrDefault(pullRequest.Number, new List <PullRequestFile>()).ToArray();
var period = GetPeriodOfPullRequest(pullRequest);
var availableDevelopers = GetAvailableDevelopersOfPeriod(pullRequest)
.ToArray();
var prSubmitter = UsernameRepository.GetByGitHubLogin(pullRequest.UserLogin);
var pullRequestKnowledgeableDevelopers = GetPullRequestKnowledgeables(pullRequestFiles, knowledgeMap, period);
var actualReviewers = GetKnowledgeOfActualReviewers(PullRequestReviewersDic.GetValueOrDefault(pullRequest.Number) ?? new List <string>(0), pullRequestKnowledgeableDevelopers);
return(new PullRequestContext()
{
SelectedReviewersType = _selectedReviewersType,
PRSubmitterNormalizedName = prSubmitter?.NormalizedName,
ActualReviewers = actualReviewers.ToArray(),
PullRequestFiles = pullRequestFiles,
AvailableDevelopers = availableDevelopers,
PullRequest = pullRequest,
KnowledgeMap = knowledgeMap,
CanononicalPathMapper = CanononicalPathMapper,
PullRequestPeriod = period,
Periods = this.PeriodsDic,
Developers = new ReadOnlyDictionary <string, Developer>(DevelopersDic),
Blames = BlameBasedKnowledgeMap.GetSnapshopOfPeriod(period.Id),
PullRequestKnowledgeables = pullRequestKnowledgeableDevelopers
});
}
private void UpdateReviewBasedKnowledgeMap(KnowledgeDistributionMap knowledgeMap, PullRequest pullRequest)
{
AddProposedChangesToPrSubmitterKnowledge(pullRequest);
ChangeThePastByRecommendingReviewers(knowledgeMap, pullRequest);
UpdateReviewBasedKnowledgeMap(pullRequest);
UpdatePullRequestEffortKnowledgeMap(PullRequestReviewComments.Where(q => q.PullRequestNumber == pullRequest.Number));
}
public static void AddFileOwnership(KnowledgeDistributionMap knowledgeDistributionMap, BlameSnapshot blameSnapshot, Dictionary <string, DeveloperKnowledge> developersKnowledge, string filePath, Dictionary <string, string> canononicalPathMapper)
{
var canonicalPath = canononicalPathMapper[filePath];
CalculateModificationExpertise();
CalculateReviewExpertise();
void CalculateModificationExpertise()
{
var fileCommitsDetail = knowledgeDistributionMap.CommitBasedKnowledgeMap[canonicalPath];
if (fileCommitsDetail == null)
{
return;
}
foreach (var devCommitDetail in fileCommitsDetail.Values)
{
var devName = devCommitDetail.Developer.NormalizedName;
var fileBlame = blameSnapshot[canonicalPath]?.GetValueOrDefault(devName, null);
var totalAuditedLines = fileBlame != null ? fileBlame.TotalAuditedLines : 0;
AddModificationOwnershipDetail(developersKnowledge, devCommitDetail, totalAuditedLines);
}
}
void CalculateReviewExpertise()
{
var fileReviewDetails = knowledgeDistributionMap.ReviewBasedKnowledgeMap[canonicalPath];
if (fileReviewDetails == null)
{
return;
}
foreach (var devReviewDetail in fileReviewDetails.Values)
{
var devName = devReviewDetail.Developer.NormalizedName;
AddReviewOwnershipDetail(developersKnowledge, devReviewDetail);
}
}
}
private void ChangeThePastByRecommendingReviewers(KnowledgeDistributionMap knowledgeMap, PullRequest pullRequest)
{
if (KnowledgeShareStrategy != null)
{
var pullRequestContext = GetPullRequestContext(pullRequest, knowledgeMap);
var periodOfPullRequest = GetPeriodOfPullRequest(pullRequest).Id;
var shouldWeChangePast = periodOfPullRequest >= _firstSimulationPeriod && pullRequestContext.ActualReviewers.Length >= _minimumActualReviewersLength;
PullRequestSimulatedRecommendationDic[pullRequest.Number] = KnowledgeShareStrategy.Recommend(pullRequestContext);
PullRequestSimulatedRecommendationDic[pullRequest.Number].SelectedReviewers = shouldWeChangePast
? PullRequestSimulatedRecommendationDic[pullRequest.Number].SelectedReviewers
: pullRequestContext.ActualReviewers.Select(q => q.DeveloperName).ToArray();
PullRequestSimulatedRecommendationDic[pullRequest.Number].IsSimulated = shouldWeChangePast;
}
}
private DeveloperKnowledge[] GetPullRequestKnowledgeables(PullRequestFile[] pullRequestFiles, KnowledgeDistributionMap knowledgeDistributionMap, Period period)
{
var developersKnowledge = new Dictionary <string, DeveloperKnowledge>();
var blameSnapshot = BlameBasedKnowledgeMap.GetSnapshopOfPeriod(period.Id);
foreach (var file in pullRequestFiles)
{
AddFileOwnership(knowledgeDistributionMap, blameSnapshot, developersKnowledge, file.FileName, CanononicalPathMapper);
}
return(developersKnowledge.Values.ToArray());
}
