private async Task ExecuteInternal(TaskExecutionOptions options)
{
// Cancel the current execution, if any
if (CurrentCancellationTokenSource != null)
{
throw new InvalidOperationException("Cannot execute a Task that is already running");
}
var progress = new Progress<double>();
CurrentCancellationTokenSource = new CancellationTokenSource();
Logger.Info("Executing {0}", Name);
((TaskManager)TaskManager).OnTaskExecuting(this);
progress.ProgressChanged += progress_ProgressChanged;
TaskCompletionStatus status;
CurrentExecutionStartTime = DateTime.UtcNow;
Exception failureException = null;
try
{
if (options != null && options.MaxRuntimeMs.HasValue)
{
CurrentCancellationTokenSource.CancelAfter(options.MaxRuntimeMs.Value);
}
var localTask = ScheduledTask.Execute(CurrentCancellationTokenSource.Token, progress);
await localTask.ConfigureAwait(false);
status = TaskCompletionStatus.Completed;
}
catch (OperationCanceledException)
{
status = TaskCompletionStatus.Cancelled;
}
catch (Exception ex)
{
Logger.ErrorException("Error", ex);
failureException = ex;
status = TaskCompletionStatus.Failed;
}
var startTime = CurrentExecutionStartTime;
var endTime = DateTime.UtcNow;
progress.ProgressChanged -= progress_ProgressChanged;
CurrentCancellationTokenSource.Dispose();
CurrentCancellationTokenSource = null;
CurrentProgress = null;
OnTaskCompleted(startTime, endTime, status, failureException);
}
/// <summary>
/// Converts a TaskTriggerInfo into a concrete BaseTaskTrigger
/// </summary>
/// <param name="info">The info.</param>
/// <returns>BaseTaskTrigger.</returns>
/// <exception cref="System.ArgumentNullException"></exception>
/// <exception cref="System.ArgumentException">Invalid trigger type: + info.Type</exception>
public static ITaskTrigger GetTrigger(TaskTriggerInfo info)
{
var options = new TaskExecutionOptions
{
MaxRuntimeMs = info.MaxRuntimeMs
};
if (info.Type.Equals(typeof(DailyTrigger).Name, StringComparison.OrdinalIgnoreCase))
{
if (!info.TimeOfDayTicks.HasValue)
{
throw new ArgumentNullException();
}
return new DailyTrigger
{
TimeOfDay = TimeSpan.FromTicks(info.TimeOfDayTicks.Value),
TaskOptions = options
};
}
if (info.Type.Equals(typeof(WeeklyTrigger).Name, StringComparison.OrdinalIgnoreCase))
{
if (!info.TimeOfDayTicks.HasValue)
{
throw new ArgumentNullException();
}
if (!info.DayOfWeek.HasValue)
{
throw new ArgumentNullException();
}
return new WeeklyTrigger
{
TimeOfDay = TimeSpan.FromTicks(info.TimeOfDayTicks.Value),
DayOfWeek = info.DayOfWeek.Value,
TaskOptions = options
};
}
if (info.Type.Equals(typeof(IntervalTrigger).Name, StringComparison.OrdinalIgnoreCase))
{
if (!info.IntervalTicks.HasValue)
{
throw new ArgumentNullException();
}
return new IntervalTrigger
{
Interval = TimeSpan.FromTicks(info.IntervalTicks.Value),
TaskOptions = options
};
}
if (info.Type.Equals(typeof(SystemEventTrigger).Name, StringComparison.OrdinalIgnoreCase))
{
if (!info.SystemEvent.HasValue)
{
throw new ArgumentNullException();
}
return new SystemEventTrigger
{
SystemEvent = info.SystemEvent.Value,
TaskOptions = options
};
}
if (info.Type.Equals(typeof(StartupTrigger).Name, StringComparison.OrdinalIgnoreCase))
{
return new StartupTrigger();
}
throw new ArgumentException("Unrecognized trigger type: " + info.Type);
}
/// <summary>
/// Executes the task
/// </summary>
/// <param name="options">Task options.</param>
/// <returns>Task.</returns>
/// <exception cref="System.InvalidOperationException">Cannot execute a Task that is already running</exception>
public async Task Execute(TaskExecutionOptions options)
{
var task = ExecuteInternal(options);
_currentTask = task;
try
{
await task.ConfigureAwait(false);
}
finally
{
_currentTask = null;
}
}
/// <summary>
/// Converts a TaskTriggerInfo into a concrete BaseTaskTrigger
/// </summary>
/// <param name="info">The info.</param>
/// <returns>BaseTaskTrigger.</returns>
/// <exception cref="System.ArgumentNullException"></exception>
/// <exception cref="System.ArgumentException">Invalid trigger type: + info.Type</exception>
public static ITaskTrigger GetTrigger(TaskTriggerInfo info)
{
var options = new TaskExecutionOptions
{
MaxRuntimeMs = info.MaxRuntimeMs
};
if (info.Type.Equals(typeof(DailyTrigger).Name, StringComparison.OrdinalIgnoreCase))
{
if (!info.TimeOfDayTicks.HasValue)
{
throw new ArgumentNullException();
}
return(new DailyTrigger
{
TimeOfDay = TimeSpan.FromTicks(info.TimeOfDayTicks.Value),
TaskOptions = options
});
}
if (info.Type.Equals(typeof(WeeklyTrigger).Name, StringComparison.OrdinalIgnoreCase))
{
if (!info.TimeOfDayTicks.HasValue)
{
throw new ArgumentNullException();
}
if (!info.DayOfWeek.HasValue)
{
throw new ArgumentNullException();
}
return(new WeeklyTrigger
{
TimeOfDay = TimeSpan.FromTicks(info.TimeOfDayTicks.Value),
DayOfWeek = info.DayOfWeek.Value,
TaskOptions = options
});
}
if (info.Type.Equals(typeof(IntervalTrigger).Name, StringComparison.OrdinalIgnoreCase))
{
if (!info.IntervalTicks.HasValue)
{
throw new ArgumentNullException();
}
return(new IntervalTrigger
{
Interval = TimeSpan.FromTicks(info.IntervalTicks.Value),
TaskOptions = options
});
}
if (info.Type.Equals(typeof(SystemEventTrigger).Name, StringComparison.OrdinalIgnoreCase))
{
if (!info.SystemEvent.HasValue)
{
throw new ArgumentNullException();
}
return(new SystemEventTrigger
{
SystemEvent = info.SystemEvent.Value,
TaskOptions = options
});
}
if (info.Type.Equals(typeof(StartupTrigger).Name, StringComparison.OrdinalIgnoreCase))
{
return(new StartupTrigger());
}
throw new ArgumentException("Unrecognized trigger type: " + info.Type);
}
