public IHttpActionResult GetCameraLastThumbPrint(long deviceID)
{
using (var dbContext = new DataContext())
{
var camera = dbContext.Cameras.Find(deviceID);
if (camera == null)
{
return(this.BadRequestEx(Error.DeviceNotFound));
}
var cameraLastStatistic = dbContext.CameraLastStatistics.SingleOrDefault(f => f.CameraID == deviceID);
if (cameraLastStatistic == null)
{
return(this.BadRequestEx(ErrorBase.PopulateUnexpectedException(new Exception("Statistic for device does not exist."))));
}
if (string.IsNullOrWhiteSpace(cameraLastStatistic.LastInfingementTime) || cameraLastStatistic.LastInfingementTime.Contains("--"))
{
return(this.BadRequestEx(ErrorBase.PopulateUnexpectedException(new Exception("No last Infrngement time recorded."))));
}
var ipAddress = ExtractIpAddress(camera.ConfigJson);
var lastInfringementTime = cameraLastStatistic.ModifiedTimeStamp.ToString("yyyy-MM-dd") + " " + cameraLastStatistic.LastInfingementTime;
var model = new CameraThumbNailModel();
model.DeviceID = deviceID;
// Do a 3s delay check
for (var x = 0; x < 3; x++)
{
var epoch = GetLatestEpoch(lastInfringementTime, x);
var document = GetImageAsBase64Url(string.Format("http://{0}/timestamp_thumb.jpg?{1}", ipAddress, epoch));
if (!string.IsNullOrWhiteSpace(document))
{
model.Document = document;
return(Ok(model));
}
}
return(Ok(model));
}
}
public override void OnActionExecuting(HttpActionContext actionContext)
{
var modelState = actionContext.ModelState;
if (!modelState.IsValid)
{
var errorlist = modelState.Values.Aggregate("Validation errors : ",
(current1, value) =>
value.Errors.Aggregate(current1, (current, error) => current + (error.ErrorMessage)));
actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.BadRequest, ErrorBase.PopulateUnexpectedException(new Exception(errorlist)));
}
}
