public async void AsyncUpdateComputerSessionInformation()
{
IsModelInformationBeingUpdated = true;
IServiceFactory sf = ServiceFactoryProducer.GetServiceFactory();
IComputerSessionService css = sf.CreateComputerSessionService();
css.UpdateProgress += UpdateModelInformation;
ModelInformationUpdateProgress = "Loading computer session data...";
ComputerSessions = await Task.Run(() =>
{
return(css.GetComputerSessions());
});
RaisePropertyChanged("ComputerSessions");
if (ComputerSessions != null && ComputerSessions.Count > 0)
{
StartupShutdownSeriesCollection = new SeriesCollection();
SessionDurationSeriesCollection = new SeriesCollection();
SessionDurationByWeekDaySeriesCollection = new SeriesCollection();
StartupHoursCounts = new int[12];
ShutdownHoursCounts = new int[12];
SessionDurationCounts = new int[24];
_sessionDurationByDayOfWeek = new Dictionary <int, List <int> >();
for (int i = 0; i < 7; i++)
{
_sessionDurationByDayOfWeek.Add(i, new List <int>());
}
foreach (ComputerSession session in ComputerSessions)
{
int day = (int)session.Beginning.DayOfWeek;
//TO-DO clean up and optimize
int logonHour = session.Beginning.Hour;
int logoffHour = session.End.Hour;
int durationDays = (int)Math.Floor((session.Beginning.Hour + (session.Beginning.Minute / 60) + session.Duration.TotalHours) / 24);
int firstDayDuration = (logoffHour < logonHour || session.Duration.TotalHours >= 24) ? firstDayDuration = 24 - logonHour: 0;
int leftoverDayDuration = (int)Math.Floor((session.Duration.TotalHours - firstDayDuration) % 24);
int logonHourIndex = (int)Math.Ceiling(logonHour / 2.0) - 1;
int logoffHourIndex = (int)Math.Ceiling(logoffHour / 2.0) - 1;
logonHourIndex = logonHourIndex < 0 ? 0 : logonHourIndex;
logoffHourIndex = logoffHourIndex < 0 ? 0 : logoffHourIndex;
if (session.Duration.TotalHours < 23)
{
SessionDurationCounts[(int)Math.Floor((double)session.Duration.Hours)]++;
}
else
{
SessionDurationCounts[23]++;
}
StartupHoursCounts[logonHourIndex]++;
ShutdownHoursCounts[logoffHourIndex]++;
for (int i = 0; i < durationDays; i++)
{
if (i == 0)
{
_sessionDurationByDayOfWeek[(day + i) % 7].Add(firstDayDuration);
}
else
{
_sessionDurationByDayOfWeek[(day + i) % 7].Add(24);
}
}
_sessionDurationByDayOfWeek[(day + durationDays) % 7].Add(leftoverDayDuration);
}
ColumnSeries cs = new ColumnSeries();
cs.Title = "Hours";
cs.Values = new ChartValues <int>();
foreach (KeyValuePair <int, List <int> > day in _sessionDurationByDayOfWeek)
{
day.Value.Sort();
int median = 0;
//TO-DO fix displaying hours for outliers. Activity in some week days may not be representative if it is not repeated often enough
if (day.Value.Count > 0)
{
median = day.Value[(int)Math.Floor((double)(day.Value.Count / 2))];
}
cs.Values.Add(median);
}
SessionDurationByWeekDaySeriesCollection.Add(cs);
ColumnSeries cs_startup = new ColumnSeries();
cs_startup.Title = "Startups";
cs_startup.Values = new ChartValues <int>();
foreach (int day in StartupHoursCounts)
{
cs_startup.Values.Add(day);
}
StartupShutdownSeriesCollection.Add(cs_startup);
ColumnSeries cs_shutdown = new ColumnSeries();
cs_shutdown.Title = "Shutdowns";
cs_shutdown.Values = new ChartValues <int>();
foreach (int day in ShutdownHoursCounts)
{
cs_shutdown.Values.Add(day);
}
StartupShutdownSeriesCollection.Add(cs_shutdown);
ColumnSeries cs_sessions = new ColumnSeries();
cs_sessions.Title = "Sessions";
cs_sessions.Values = new ChartValues <int>();
foreach (int day in SessionDurationCounts)
{
cs_sessions.Values.Add(day);
}
SessionDurationSeriesCollection.Add(cs_sessions);
}
IsModelInformationBeingUpdated = false;
}