public void safeSave()
{
lock (writeLock)
{
try {
this.context.SaveChanges();
}
catch (Exception e)
{
BackgroundWork.messageRefreshHandlers(e.Message);
System.Windows.MessageBox.Show(e.Message, "Error Loading");
}
}
/* TODO write with thread
*
* System.Threading.ThreadPool.QueueUserWorkItem(
* (o) => {
* lock (writeLock)
* {
* this.context.SaveChanges();
* }
* });
*
*/
}
public void doRefresh()
{
try {
//Call all registered handlers
BackgroundWork.messageRefreshHandlers("Starting refresh...");
//Saved all input data in local variable
var currentWifis = loadWifis();
var currentPlaces = DataManager.Instance.context.Places.Local.ToList();
if (currentWifis == null)
{
BackgroundWork.messageRefreshHandlers("Error: no wifi detected!");
return;
}
if (currentPlaces == null)
{
BackgroundWork.messageRefreshHandlers("No places stored!");
return;
}
//Run algorithm with retrieved input data
Place newPlace = algo.computeCurrentPlace(currentWifis, currentPlaces);
BackgroundWork.messageRefreshHandlers("Place Found");
//Update time counter - safe?
//Also other write from UI events
lock (writeLock)
{ //it is necessary to compute time
//from last refesh, because it can be done manually
if (this.currentState.Place == null)
{
this.oldDate = DateTime.Now;
}
DateTime now = DateTime.Now;
TimeSpan diff = now.Subtract(oldDate);
oldDate = now;
newPlace.Cnt += (long)diff.TotalMilliseconds;
//or simply
//newPlace.Cnt = newPlace.Cnt + BackgroundWork.refreshTime / 1000;
safeSave();
}
if (currentState.Place == null || newPlace.PlaceId != currentState.Place.PlaceId)
{
currentState.Place = newPlace;
var currentActions = currentState.Place.InActions.ToList();
BackgroundWork.placeChangedHandlers(newPlace);
//System.Threading.Thread.Sleep(5000);
foreach (models.Action a in currentActions)
{
//System.Threading.Thread.Sleep(10000);
ActionManager.execute(a);
}
}
BackgroundWork.messageRefreshHandlers("Done");
}
catch (Exception)
{
BackgroundWork.messageRefreshHandlers("Failure.");
}
}
