public CourseSecGAOperators(GaTask task)
{
_dbContext = new DatabaseContext();
_task = task;
//relationDict = new Dictionary<KeyValuePair<ObjectId, ObjectId>, Relation.RelationType>();
_relationsCache = new Cache<KeyValuePair<ObjectId, ObjectId>, Relation.RelationType?>();
//currentLOsSetKnowledges = new HashSet<Knowledge>();
//foreach (var sourceLearningObject in _task.SourceLearningObjects)
//{
// foreach (var prerequisite in sourceLearningObject.Prerequisites)
// {
// var knowledge = dbContext.Ontology.Find(x => x.Id == prerequisite.KnowledgeId).SingleOrDefaultAsync().Result;
// currentLOsSetKnowledges.Add(knowledge);
// }
// foreach (var outcome in sourceLearningObject.Outcomes)
// {
// var knowledge = dbContext.Ontology.Find(x => x.Id == outcome.KnowledgeId).SingleOrDefaultAsync().Result;
// currentLOsSetKnowledges.Add(knowledge);
// }
//}
}
public async Task<ObjectId> TaskRunAsync(GaTask gaTask)
{
BackgroundWorker bw = new BackgroundWorker
{
WorkerSupportsCancellation = true,
WorkerReportsProgress = true
};
bw.DoWork += bw_DoWork;
bw.ProgressChanged += bw_ProgressChanged;
bw.RunWorkerCompleted += bw_RunWorkerCompleted;
DatabaseContext dbContext = new DatabaseContext();
gaTask.LaunchTime = DateTime.Now;
gaTask.State = TaskState.Launched;
await dbContext.gaTasks.InsertOneAsync(gaTask);
bw.RunWorkerAsync(gaTask);
//Console.WriteLine("Task " + gaTask.Id + " launched");
Workers.Add(gaTask.Id, bw);
return gaTask.Id;
}
private void bw_ProgressChanged(object sender, ProgressChangedEventArgs e)
{
DatabaseContext dbContext = new DatabaseContext();
int percentage = e.ProgressPercentage;
ObjectId id = (ObjectId)e.UserState;
var filter = Builders<GaTask>.Filter.Eq(s => s.Id, id);
var update = Builders<GaTask>.Update.Set(s => s.ProgressPercent, percentage);
dbContext.gaTasks.UpdateOneAsync(filter, update);
}
private void bw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
GaTask task = (GaTask)e.Result;
if (task.State == TaskState.Cancelled)
{
//Console.WriteLine("Task " + task.Id + " cancelled");
DatabaseContext dbContext = new DatabaseContext();
ObjectId id = task.Id;
//var update = Builders<GaTask>.Update.Set(s => s.State, TaskState.Cancelled);
//dbContext.gaTasks.UpdateOneAsync(filter, update);
var filter = Builders<GaTask>.Filter.Eq(s => s.Id, id);
dbContext.gaTasks.ReplaceOneAsync(filter, task);
//var updateWhole = Builders<GaTask>.Update.Set(s => s, task);
//dbContext.gaTasks.FindOneAndUpdateAsync(filter, updateWhole);
Workers.Remove(id);
}
else if (task.State == TaskState.Error)
{
//Console.WriteLine("Error occured during task " + task.Id + " working");
DatabaseContext dbContext = new DatabaseContext();
ObjectId id = task.Id;
//var filter = Builders<GaTask>.Filter.Eq(s => s.Id, id);
//var update = Builders<GaTask>.Update
// .Set(s => s.State, TaskState.Error)
// .Set(s => s.ErrorMessage, task.ErrorMessage);
//dbContext.gaTasks.UpdateOneAsync(filter, update);
var filter = Builders<GaTask>.Filter.Eq(s => s.Id, id);
dbContext.gaTasks.ReplaceOneAsync(filter, task);
//var updateWhole = Builders<GaTask>.Update.Set(s => s, task);
//dbContext.gaTasks.FindOneAndUpdateAsync(filter, updateWhole);
Workers.Remove(id);
}
else
{
////Console.WriteLine("Task " + task.Id + " finished");
//DatabaseContext dbContext = new DatabaseContext();
//ObjectId id = task.Id;
//var filter = Builders<GaTask>.Filter.Eq(s => s.Id, id);
//dbContext.gaTasks.ReplaceOneAsync(filter, task);
DatabaseContext dbContext = new DatabaseContext();
var filter = Builders<GaTask>.Filter.Eq(s => s.Id, task.Id);
var update = Builders<GaTask>.Update
.Set(s => s.State, TaskState.Finished)
.Set(s => s.AverageFFvalues, task.AverageFFvalues)
.Set(s => s.WorstFfValues, task.WorstFfValues)
.Set(s => s.BestFfValues, task.BestFfValues)
.Set(s => s.FinishTime, task.FinishTime)
.Set(s => s.ResultLearningObjects, task.ResultLearningObjects);
var v = dbContext.gaTasks.UpdateOneAsync(filter, update).Result;
Workers.Remove(task.Id);
}
}
