private static void OnPositionEstimatesSaved(IAsyncResult result)
{
bool errorOccured = false;
radiomapEntities context = result.AsyncState as radiomapEntities;
try
{
// Complete the save changes operation and display the response.
DataServiceResponse response = context.EndSaveChanges(result);
foreach (ChangeOperationResponse changeResponse in response)
{
if (changeResponse.Error != null)
{
errorOccured = true;
}
}
if (!errorOccured)
{
//Maybe raise success event?
}
}
catch (Exception ex)
{
Exception exCopy = ex;
}
}
private void RemoveEdgeTask()
{
if (CurrentEdge == null)
{
throw new InvalidOperationException("No link to remove");
}
isUploading = true;
mContext = LocationService.radiomapContext;
//Add the edge
mContext.DeleteObject(CurrentEdge);
try
{
mContext.BeginSaveChanges(OnChangesSaved, mContext);
uploadProgressIndicator.IsVisible = isUploading;
}
catch (Exception ex)
{
isUploading = false;
uploadProgressIndicator.IsVisible = isUploading;
// Display the error from the response.
string errorMsg = ex.InnerException != null ?
ex.InnerException.Message :
ex.Message;
MessageBox.Show(string.Format("The following error occured: {0}", errorMsg));
}
}
private static void UploadTrackingDataAndFlushBuffer()
{
if (bufferedTrackedPositions == null)
{
return;
}
if (bufferedTrackedPositions.Count == 0)
{
return;
}
//copy tracking data and clear buffer
TrackedPosition[] tmp;
lock (bufferedTrackedPositionsLock)
{
int numPositions = bufferedTrackedPositions.Count;
tmp = new TrackedPosition[numPositions];
bufferedTrackedPositions.CopyTo(tmp);
bufferedTrackedPositions.Clear();
}
radiomapEntities context = new radiomapEntities(radiomapUri);
foreach (TrackedPosition pos in tmp)
{
context.AddToTrackedPositions(pos);
}
context.BeginSaveChanges(SaveChangesOptions.Batch, OnPositionEstimatesSaved, context);
}
private void OnChangesSaved(IAsyncResult result)
{
bool errorOccured = false;
// Use the Dispatcher to ensure that the
// asynchronous call returns in the correct thread.
Dispatcher.BeginInvoke(() =>
{
isUploading = false;
uploadProgressIndicator.IsVisible = isUploading;
mContext = result.AsyncState as radiomapEntities;
try
{
// Complete the save changes operation and display the response.
DataServiceResponse response = mContext.EndSaveChanges(result);
foreach (ChangeOperationResponse changeResponse in response)
{
if (changeResponse.Error != null) errorOccured = true;
}
if (!errorOccured)
{
Globals.ShowDialog(this, Globals.CHANGES_SAVED, Globals.DURATION_SHORT);
//Finalize edge, i.e., add it to the endpoint's edges and to the building
/*
Building b = LocationService.CurrentBuilding;
b.Edges.Add(mCurrentEdge);
foreach (Vertex v in mCurrentEdge.Vertices)
{
if (!v.Edges.Contains(mCurrentEdge))
v.Edges.Add(mCurrentEdge);
}
*/
NavigationService.GoBack();
//Tell everyone the good news!
if (OnEdgeAdded != null)
{
OnEdgeAdded(this, EventArgs.Empty);
}
}
else
{
MessageBox.Show("An error occured. One or more changes could not be saved.");
}
}
catch (Exception ex)
{
// Display the error from the response.
string errorMsg = ex.InnerException != null ?
ex.InnerException.Message :
ex.Message;
MessageBox.Show(string.Format("The following error occured: {0}", errorMsg));
}
}
);
}
/// <summary>
/// Downloads a radio map for the building with the specified id.
/// </summary>
/// <param name="buildingId"></param>
public static void DownloadRadioMap(int buildingId)
{
radiomapContext = new radiomapEntities(radiomapUri);
buildings = new DataServiceCollection <Building>(radiomapContext);
String expandOptions = "Building_Floors,Vertices,Vertices/AbsoluteLocations,Vertices/SymbolicLocations,Vertices/Edges,Edges,Edges/Vertices,Edges/Vertices/AbsoluteLocations";
var query = from b in radiomapContext.Buildings.Expand(expandOptions)
where b.ID == buildingId
select b;
// Register for the LoadCompleted event.
buildings.LoadCompleted
+= new EventHandler <LoadCompletedEventArgs>(buildings_LoadCompleted);
buildings.LoadAsync(query);
}
private void OnChangesSaved(IAsyncResult result)
{
bool errorOccured = false;
// Use the Dispatcher to ensure that the
// asynchronous call returns in the correct thread.
Dispatcher.BeginInvoke(() =>
{
isUploading = false;
uploadProgressIndicator.IsVisible = isUploading;
mContext = result.AsyncState as radiomapEntities;
try
{
// Complete the save changes operation and display the response.
DataServiceResponse response = mContext.EndSaveChanges(result);
foreach (ChangeOperationResponse changeResponse in response)
{
if (changeResponse.Error != null)
{
errorOccured = true;
}
}
if (!errorOccured)
{
Globals.ShowDialog(this, Globals.CHANGES_SAVED, Globals.DURATION_SHORT);
NavigationService.GoBack();
if (OnSymbolicLocationChange != null)
{
OnSymbolicLocationChange(this, null);
}
}
else
{
MessageBox.Show("An error occured. One or more changes could not be saved.");
}
}
catch (Exception ex)
{
// Display the error from the response.
MessageBox.Show(string.Format("The following error occured: {0}", ex.Message));
}
}
);
}
//UDP udgaven:
/*
* private static void StartTcpServer()
* {
* LoadRadioMap();
*
* //Start listening for sniffer measurements
* UdpClient udpc = new UdpClient(5555);
* Console.WriteLine("Server started, servicing on port 2055");
* IPEndPoint ep = null;
* while (true)
* {
* byte[] rawData = udpc.Receive(ref ep);
* string strData = Encoding.ASCII.GetString(rawData);
* string[] msgParts = strData.Split(' ');
*
* try
* {
* string snifferMac = msgParts[0];
* string hms = msgParts[1]; //e.g.: 10:01:21.185194
* DateTime time = getTime(hms);
* string strRssi = msgParts[2];
* int rssi = int.Parse(strRssi);
* string clientMac = msgParts[3];
*
* if (isCurrentlyMeasuring(clientMac))
* {
* addToMeasurement(snifferMac, clientMac, rssi, time);
* }
* Console.WriteLine("Sniffer mac = {0}; time = {1}; RSSI = {2}; clientMac = {3}", snifferMac, time, strRssi, clientMac);
* }
* catch (Exception ex)
* {
* Console.WriteLine(ex.Message);
* }
* }
* }
*/
private static void LoadRadioMap()
{
if (!IsDownloadingRadioMap)
{
IsDownloadingRadioMap = true;
context = new radiomapEntities(radiomapUri);
//Load LoadedBuildings
String expandOptions = "Building_MacInfos,Building_Floors,Edges,Vertices,Vertices/AbsoluteLocations,Vertices/SymbolicLocations,Vertices/SnifferWifiMeasurements,Vertices/SnifferWifiMeasurements/SnifferHistograms";
DataServiceQuery <Building> query = context.Buildings.Expand(expandOptions);
//NOTE: Maybe surround with try-catch and try again
LoadedBuildings = query.Execute().ToList();
IsDownloadingRadioMap = false;
checkBuildings();
}
}
//Upload a symbolicLocation in the background (update or create)
//Form: AsyncTask<[Input Parameter Type], [Progress Report Type], [Result Type]>
private void AddEdgeTask()
{
isUploading = true;
mContext = LocationService.radiomapContext;
/*
Uri radiomapUri = new Uri("http://smartcampusaau.cs.aau.dk/RadioMapService3/RadioMapService.svc/");
mContext = new radiomapEntities(radiomapUri);
Building b = (mContext.Buildings.Where(b1 => b1.ID == LocationService.CurrentBuilding.ID)).First();
Vertex v0 = (mContext.Vertices.Where(v => v.ID == mCurrentEdge.Vertices[0].ID)).First();
Vertex v1 = (mContext.Vertices.Where(v => v.ID == mCurrentEdge.Vertices[1].ID)).Single();
mContext.AddToEdges(mCurrentEdge);
mContext.AddLink(b, "Edges", mCurrentEdge);
mContext.AddLink(v0, "Edges", mCurrentEdge);
mContext.AddLink(v1, "Edges", mCurrentEdge);
*/
//Link to/from the building and endpoints
mContext.AddToEdges(mCurrentEdge);
Building b = LocationService.CurrentBuilding;
b.Edges.Add(mCurrentEdge);
/*
foreach (Vertex v in mCurrentEdge.Vertices)
{
if (!v.Edges.Contains(mCurrentEdge))
v.Edges.Add(mCurrentEdge);
}
*/
try
{
mContext.BeginSaveChanges(OnChangesSaved, mContext);
uploadProgressIndicator.IsVisible = isUploading;
}
catch (Exception ex)
{
isUploading = false;
uploadProgressIndicator.IsVisible = isUploading;
MessageBox.Show(string.Format("The changes could not be saved.\n"
+ "The following error occurred: {0}", ex.Message));
}
}
//Upload a symbolicLocation in the background (update or create)
//Form: AsyncTask<[Input Parameter Type], [Progress Report Type], [Result Type]>
private void UploadSymbolicLocationTask(SymbolicLocation tmpSymLoc)
{
isUploading = true;
mContext = LocationService.radiomapContext;
Vertex currentVertex = Map2DOffline.SelectedOfflineVertex;
SymbolicLocation currentSymLoc = currentVertex.SymbolicLocations.FirstOrDefault();
//1) upload NEW symbolic location
if (currentSymLoc == null)
{
mContext.AddRelatedObject(currentVertex, "SymbolicLocations", tmpSymLoc);
currentVertex.SymbolicLocations.Add(tmpSymLoc);
}
//2) or UPDATE existing
else
{
//copy updated values
currentSymLoc.title = tmpSymLoc.title;
currentSymLoc.description = tmpSymLoc.description;
currentSymLoc.url = tmpSymLoc.url;
currentSymLoc.is_entrance = tmpSymLoc.is_entrance;
mContext.UpdateObject(currentSymLoc);
}
try
{
mContext.BeginSaveChanges(OnChangesSaved, mContext);
//uploadProgressBar.Visibility = System.Windows.Visibility.Visible;
uploadProgressIndicator.IsVisible = isUploading;
}
catch (Exception ex)
{
isUploading = false;
uploadProgressIndicator.IsVisible = isUploading;
MessageBox.Show(string.Format("The changes could not be saved.\n"
+ "The following error occurred: {0}", ex.Message));
}
}
public int SaveMeasurement(string clientMac)
{
const int error = -1;
int result = error; //change if success
if (clientMac == null)
{
return(error);
}
if (!(savedMeasuringClients.ContainsKey(clientMac) && savedOfflineMeasurements.ContainsKey(clientMac)))
{
return(error);
}
//Remove the measurement from from the 'current' list.
SnifferWifiMeasurement curWifi = savedOfflineMeasurements[clientMac];
Vertex curVertex = savedMeasuringClients[clientMac];
savedOfflineMeasurements.Remove(clientMac);
savedMeasuringClients.Remove(clientMac);
Building curBuilding = LoadedBuildings.First(b => b.ID == curVertex.Building_ID);
//save changes persistently
try
{
//Notify context about changes
radiomapEntities localContext = new radiomapEntities(radiomapUri);
if (curVertex.ID <= UNBOUND_ID_STARTVALUE) //unbound location
{
AbsoluteLocation absLoc = curVertex.AbsoluteLocations.First();
localContext.AttachTo("Buildings", curBuilding);
localContext.AddRelatedObject(curBuilding, "Vertices", curVertex);
localContext.AddRelatedObject(curVertex, "AbsoluteLocations", absLoc);
}
else
{
localContext.AttachTo("Vertices", curVertex);
result = curVertex.ID;
}
localContext.AddRelatedObject(curVertex, "SnifferWifiMeasurements", curWifi);
foreach (SnifferHistogram curHist in curWifi.SnifferHistograms)
{
localContext.AddRelatedObject(curWifi, "SnifferHistograms", curHist);
}
//save to database
DataServiceResponse response = localContext.SaveChanges(SaveChangesOptions.Batch);
// Enumerate the returned responses. If a new vertex, add it to the current building and return its id.
foreach (ChangeOperationResponse change in response)
{
// Get the descriptor for the entity.
EntityDescriptor descriptor = change.Descriptor as EntityDescriptor;
if (descriptor != null)
{
if (descriptor.Entity is SnifferWifiMeasurement)
{
//Yes, the measurement got saved
Console.WriteLine("Measurement saved."); //dummy statement
}
else if (descriptor.Entity is Vertex)
{
Vertex newVertex = descriptor.Entity as Vertex;
curBuilding.Vertices.Add(newVertex);
result = newVertex.ID;
}
}
}
return(result);
}
catch (DataServiceRequestException)
{
return(error);
}
}
