internal Task Execute(LossSimulationOption lossSimulationOption) { _dbContext = new GitRepositoryDbContext(false); var lossSimulation = CreateLossSimulation(lossSimulationOption); var timeMachine = CreateTimeMachine(lossSimulation); var knowledgeDistributioneMap = timeMachine.FlyInTime(); var leavers = GetLeavers(lossSimulation); using (var transaction = _dbContext.Database.BeginTransaction()) { SavePullRequestReviewes(knowledgeDistributioneMap, lossSimulation); _logger.LogInformation("{datetime}: RecommendedPullRequestReviewes are saved successfully.", DateTime.Now); SaveOwnershipDistribution(knowledgeDistributioneMap, lossSimulation, leavers); _logger.LogInformation("{datetime}: Ownership Distribution is saved Successfully.", DateTime.Now); SavePullRequestSimulatedRecommendationResults(knowledgeDistributioneMap, lossSimulation); _logger.LogInformation("{datetime}: Pull Requests Recommendation Results are saved Successfully.", DateTime.Now); SaveOpenReviews(knowledgeDistributioneMap, lossSimulation); _logger.LogInformation("{datetime}: Developer OpenReviews are saved successfully.", DateTime.Now); transaction.Commit(); _logger.LogInformation("{datetime}: Transaction is committed.", DateTime.Now); } _logger.LogInformation("{datetime}: trying to save results into database", DateTime.Now); _dbContext.SaveChanges(); lossSimulation.EndDateTime = DateTime.Now; _dbContext.Entry(lossSimulation).State = EntityState.Modified; _dbContext.SaveChanges(); _logger.LogInformation("{datetime}: results have been saved", DateTime.Now); _dbContext.Dispose(); return(Task.CompletedTask); }