/// <returns>List of weights (numbers from [0, 1)) used for calculating mean and deviation for this task</returns>
private async Task <List <double> > CalculateTaskStatisticsParametersAsync(int clientId, Guid taskId)
{
/* Create local submissions repo for preventing memory leaks */
using (var scope = serviceScopeFactory.CreateScope())
{
db.DisableAutoDetectChanges();
var localSubmissionsRepo = scope.ServiceProvider.GetService <ISubmissionsRepo>();
logger.Information($"Пересчитываю статистические параметры задачи (TaskStatisticsParameters) по задаче {taskId}");
var lastAuthorsIds = await localSubmissionsRepo.GetLastAuthorsByTaskAsync(clientId, taskId, configuration.StatisticsAnalyzing.CountOfLastAuthorsForCalculatingMeanAndDeviation).ConfigureAwait(false);
var lastSubmissions = await localSubmissionsRepo.GetLastSubmissionsByAuthorsForTaskAsync(clientId, taskId, lastAuthorsIds).ConfigureAwait(false);
var currentSubmissionsCount = await localSubmissionsRepo.GetSubmissionsCountAsync(clientId, taskId).ConfigureAwait(false);
var(weights, statisticsParameters) = await statisticsParametersFinder.FindStatisticsParametersAsync(lastSubmissions).ConfigureAwait(false);
logger.Information($"Новые статистические параметры задачи (TaskStatisticsParameters) по задаче {taskId}: Mean={statisticsParameters.Mean}, Deviation={statisticsParameters.Deviation}");
statisticsParameters.TaskId = taskId;
statisticsParameters.SubmissionsCount = currentSubmissionsCount;
await tasksRepo.SaveTaskStatisticsParametersAsync(statisticsParameters).ConfigureAwait(false);
return(weights);
}
}
public async Task CalculateTaskStatisticsParametersAsync(int clientId, Guid taskId)
{
logger.Information($"Пересчитываю статистические параметры задачи (TaskStatisticsParameters) по задаче {taskId}");
var lastAuthorsIds = await submissionsRepo.GetLastAuthorsByTaskAsync(clientId, taskId, configuration.StatisticsAnalyzing.CountOfLastAuthorsForCalculatingMeanAndDeviation);
var lastSubmissions = await submissionsRepo.GetLastSubmissionsByAuthorsForTaskAsync(clientId, taskId, lastAuthorsIds);
var currentSubmissionsCount = await submissionsRepo.GetSubmissionsCountAsync(clientId, taskId);
var statisticsParameters = await statisticsParametersFinder.FindStatisticsParametersAsync(lastSubmissions);
logger.Information($"Новые статистические параметры задачи (TaskStatisticsParameters) по задаче {taskId}: Mean={statisticsParameters.Mean}, Deviation={statisticsParameters.Deviation}");
statisticsParameters.TaskId = taskId;
statisticsParameters.SubmissionsCount = currentSubmissionsCount;
await tasksRepo.SaveTaskStatisticsParametersAsync(statisticsParameters);
}