public JobManager()
{
_log = new List <string>
{
string.Format("[{0:yyyy-MM-dd HH:mm:ss}] Queue started.", DateTime.Now)
};
_queue = new BlockingCollection <ServiceJob>();
Task.Run(async() =>
{
while (true)
{
ServiceJob job = null;
try
{
job = _queue.Take();
if (job != null)
{
await Pop(job);
}
}
catch (Exception ex)
{
OnJobError(job, ex);
}
}
});
}
private async Task <bool> Pop(ServiceJob job)
{
var sw = System.Diagnostics.Stopwatch.StartNew();
_log.Add($"[{DateTime.Now:yyyy-MM-dd HH:mm:ss}] Started job ID {job.ID} ({job.Name}).");
if (job.Action != null)
{
bool result = await job.Action();
sw.Stop();
_log.Add($"[{DateTime.Now:yyyy-MM-dd HH:mm:ss}] Completed job ID {job.ID} ({job.Name}) in {sw.Elapsed.TotalSeconds:0.00} seconds. Result: {result}");
return(result);
}
else
{
_log.Add($"[{DateTime.Now:yyyy-MM-dd HH:mm:ss}] Unable to process job. {job.Name} does not have an action to execute.");
throw new InvalidOperationException($"Unable to process job. {job.Name} does not have an action to execute.");
}
}
protected virtual void OnJobError(ServiceJob job, Exception ex)
{
JobError?.Invoke(this, new JobException(job, ex));
}
public void Push(ServiceJob job)
{
_queue.Add(job);
}
internal JobException(ServiceJob job, Exception ex)
{
Job = job;
Exception = ex;
}