/// <summary>
/// Handles an incoming search result.
/// </summary>
/// <param name="likeliness">Search result to handle</param>
public async Task HandleSearchResult(LikelinessResult likeliness)
{
Debug.WriteLine(string.Format("Handling search result with confidence={0}", likeliness.Confidence));
if (await scheduler.CheckExists(new JobKey(likeliness.FaceToken, "timeout")))
{
return;
}
switch (likeliness.Confidence)
{
case LikelinessConfidence.LowProbability:
break;
case LikelinessConfidence.NormalProbability:
case LikelinessConfidence.HighProbability:
await ScheduleJobByLikeliness <SendNotificationJob>(likeliness, "notificationJob");
break;
case LikelinessConfidence.VeryHighProbability:
var key = new JobKey(likeliness.FaceToken, "notificationJob");
IJobDetail instantNotificationJob = JobBuilder.Create <SendNotificationJob>()
.WithIdentity(key)
.UsingJobData("confidence", (int)likeliness.Confidence)
.Build();
await scheduler.AddJob(instantNotificationJob, true, true);
await scheduler.TriggerJob(key);
await ScheduleJobByLikeliness <TimeoutJob>(likeliness, "timeout");
break;
}
}
public IEnumerable <LikelinessResult> LikelinessConfidences()
{
if (Results == null)
{
yield break;
}
foreach (Result result in Results)
{
LikelinessResult likelinessResult = default(LikelinessResult);
likelinessResult.FaceToken = result.Face_token;
if (result.Confidence < Thresholds.E3)
{
likelinessResult.Confidence = LikelinessConfidence.LowProbability;
}
else if (result.Confidence < Thresholds.E4)
{
likelinessResult.Confidence = LikelinessConfidence.NormalProbability;
}
else if (result.Confidence < Thresholds.E5)
{
likelinessResult.Confidence = LikelinessConfidence.HighProbability;
}
else
{
likelinessResult.Confidence = LikelinessConfidence.VeryHighProbability;
}
yield return(likelinessResult);
}
}
/// <summary>
/// Handles a single searchResult with no scheduling - sends it out if it meets the minimum confidence requirement.
/// </summary>
/// <param name="minimumConfidence">Minimum confidence to send the notification</param>
/// <returns></returns>
public static async Task HandleOneResult(LikelinessResult result, LikelinessConfidence minimumConfidence, CameraProperties cameraProperties = null)
{
if (result.Confidence >= minimumConfidence)
{
Debug.WriteLine(string.Format("Probability {0} meets minimum confidence requirement, notification will be sent.", result.Confidence));
await SendNotification(result.FaceToken, result.Confidence, cameraProperties);
}
}
/// <summary>
/// Schedules a notification job.
/// Detail depend on the likeliness level
/// </summary>
/// <typeparam name="JobType">Type of job to create</typeparam>
/// <param name="likelinessResult">Likeliness result</param>
/// <param name="group">Group of the job to create</param>
/// <returns></returns>
private async Task ScheduleJobByLikeliness <JobType>(LikelinessResult likelinessResult, string group) where JobType : IJob
{
var jobKey = new JobKey(likelinessResult.FaceToken, group);
IJobDetail job = JobBuilder.Create <JobType>()
.WithIdentity(jobKey)
.UsingJobData("confidence", (int)likelinessResult.Confidence)
.Build();
ITrigger triggerByConfidence = TriggerBuilder.Create()
.ForJob(job)
.StartAt(DateTime.Now.AddSeconds(likelinessLevelData[likelinessResult.Confidence].TimeLimit))
.Build();
var oldJob = await scheduler.GetJobDetail(jobKey);
if (oldJob != null)
{
var trigger = (await scheduler.GetTriggersOfJob(jobKey)).FirstOrDefault();
var triggerToUse = trigger == null || trigger.StartTimeUtc > triggerByConfidence.StartTimeUtc ?
triggerByConfidence : trigger;
if (oldJob.JobDataMap.GetInt("confidence") < (int)likelinessResult.Confidence)
{
await scheduler.AddJob(job, true, true);
await scheduler.ScheduleJob(triggerToUse);
}
else
{
await scheduler.RescheduleJob(trigger.Key, triggerToUse);
}
return;
}
else
{
await scheduler.AddJob(job, true, true);
await scheduler.ScheduleJob(triggerByConfidence);
}
}
