/// <summary>
/// Loads the default settings, from values in the database
/// </summary>
public void LoadDefaults()
{
var db = new CaptureDb(ConfigurationManager.ConnectionStrings["LOCALDB"].ConnectionString);
DataTable dt = db.ReturnMotionSettingDefaults();
//iterate over the properties in this object, and the properties in the Datatable until a match is found
foreach (DataRow dr in dt.Rows)
{
foreach (PropertyInfo property in typeof(MotionSensorSettings).GetProperties())
{
if (property.Name.Equals(dr["settingTypeName"].ToString()))
{
if (property.PropertyType.ToString() == "System.Decimal")
{
property.SetValue(this, dr["value"].ToString().StringToDec());
}
else if (property.PropertyType.ToString() == "System.Int32")
{
property.SetValue(this, dr["value"].ToString().StringToInt());
}
else if (property.PropertyType.ToString() == "System.Boolean")
{
property.SetValue(this, dr["value"].ToString().StringToBool());
}
}
}
}//foreach datarow
}
protected override void StartSaveTask(long dbId, byte[] template, Guid guid, CancellationToken token)
{
Task saveTask = Task.Run(() =>
{
Log.Debug("Save task running.");
CaptureDb capture = (from c in m_Database.Captures
where c.Id == dbId
select c).FirstOrDefault();
if (capture != null)
{
// Update the template to that supplied
capture.GoldTemplate = template;
m_Database.SubmitChanges();
}
else
{
Log.WarnFormat("Failed to find capture wtih DbId={0}. Not saving template", dbId);
}
}, token);
// Raise the SaveTemplateComplete event in the case where the Task faults.
saveTask.ContinueWith((Task t) =>
{
if (t.IsFaulted)
{
Log.Error("Failed to save template: " + t.Exception.Message, t.Exception);
OnSaveTemplateComplete(new SaveTemplateEventArgs(guid, DataRequestResult.TaskFailed));
}
});
}
private CaptureInfo GetCapture(ScannerType scannerType, CancellationToken token)
{
Log.DebugFormat("GetCapture(scannerType={0}, token={1}) called",
scannerType, token);
CaptureInfo captureInfo = null;
DataRequestResult result = DataRequestResult.None;
bool isRunning = true;
int attempts = 0;
while (isRunning)
{
// Check if cancellation requested
token.ThrowIfCancellationRequested();
// First query the database to get an image file name.
CaptureDb captureCandidate = GetCaptureFromDatabase(scannerType);
if (captureCandidate != null)
{
// Try to find an image file using the file name.
byte[] imageData;
bool isFound = TryGetImageFromName(captureCandidate.HumanId, out imageData);
if (isFound)
{
// Matching file found.
Log.DebugFormat("Matching file found for capture={0}", captureCandidate.HumanId);
isRunning = false;
captureInfo = new CaptureInfo(
captureCandidate.Id,
imageData,
captureCandidate.GoldTemplate);
result = DataRequestResult.Success;
}
else
{
// Give up if the number of attemps exceeds limit.
attempts++;
if (attempts > MAX_OPEN_FILE_ATTEMPTS)
{
Log.WarnFormat("Exceeded maximum number of file searches (attempts={0})",
attempts);
isRunning = false;
result = DataRequestResult.Failed;
}
}
}
else
{
// Queries are not returning any more candidates, give up immediately.
Log.Warn("No candidate filename obtained from the database");
result = DataRequestResult.Failed;
break;
}
}
IntegrityCheck.AreNotEqual(DataRequestResult.None, result);
return(captureInfo);
}
public void TestAddCapture()
{
ImageSaver imageSaver = new ImageSaver(@"d:\motion", "movement", 0);
ICaptureDb db = new CaptureDb(ConfigurationManager.ConnectionStrings["LOCALDB"].ConnectionString);
db.CreateCaptureSession(imageSaver.captureId, imageSaver.SaveDirectory);
Assert.IsTrue(db.CaptureIdExists(imageSaver.captureId));
Exception ex = null;
try
{
db.CreateCaptureSession(imageSaver.captureId, imageSaver.SaveDirectory);
}
catch (Exception exc)
{
ex = exc;
}
Assert.IsNotNull(ex);
}
