Verbesserung von Logging, Fehlerbehandlung und Caching

Die Änderungen umfassen:
- Zusätzliche Prüfung und Fehlermeldung in `ctrlObjectPropertyDialog`, wenn keine Business Entities gefunden werden.
- Anpassung der Logik in `frmObjectPropertyDialog` zur besseren Zuordnung von LayoutControlItem und BaseEdit.
- Einführung von Thread-Sicherheit für den Cache in `EDMIService` mittels `SyncLock`.
- Erweiterung von Methoden wie `ReturnDatatable`, `ReturnScalarValue` und `ExecuteNonQuery` um Performance-Messung mit `Stopwatch`.
- Vereinheitlichung der Fehlerbehandlung durch konsistente Nutzung von `FaultException`.
- Erweiterung des Loggings für Sessions, Cache-Aktualisierungen und Datenbankoperationen.
- Korrektur der Rückgabe in `GetFileInfoByObjectId` und Verbesserung der Fault-Wrapper-Methoden.
- Bereinigung von redundanten Codezeilen und Kommentaren.

GUIs.Common/ObjectPropertyDialog/ctrlObjectPropertyDialog.vb

@@ -85,6 +85,13 @@ Public Class ctrlObjectPropertyDialog
         End If
         ' Load Business Entities
         Dim oEntityIds = Await GetBusinessEntitiesForObjectId(pObjectId)
+
+        If oEntityIds.Count = 0 Then
+            _Logger.Warn("Keine Business Entities für ObjectId {0} gefunden.", pObjectId)
+            Helper.ShowErrorMessage(New ApplicationException($"Für das Objekt '{pObjectId}' wurden keine Business Entities gefunden."), "LoadObject")
+            Return False
+        End If
+
         Dim oActiveEntity = oEntityIds.FirstOrDefault()
 
         Dim oCombobox As RepositoryItemComboBox = DirectCast(cmbEntityId.Edit, RepositoryItemComboBox)

GUIs.Common/ObjectPropertyDialog/frmObjectPropertyDialog.vb

@@ -154,7 +154,8 @@ Public Class frmObjectPropertyDialog
     End Sub
 
     Private Sub BaseEdit_EditValueChanged(sender As Object, e As EventArgs)
-        Dim oControl As BaseEdit = sender
+        Dim oControlItem As LayoutControlItem = sender
+        Dim oControl As BaseEdit = oControlItem.Control
         Dim oAttribute As Attribute = oControl.Tag
         Dim oValue = oControl.EditValue
         Dim oKey = oAttribute.Title
@@ -163,7 +164,6 @@ Public Class frmObjectPropertyDialog
             Changes.Item(oKey) = oValue
         Else
             Changes.Add(oAttribute.Title, oValue)
-
         End If
     End Sub
 

Service.EDMIService/EDMIService.vb

@@ -1,19 +1,21 @@
-Imports System.IO
+Imports System.Diagnostics
+Imports System.IO
 Imports System.ServiceModel
 Imports System.ServiceModel.Description
+Imports System.Threading
 Imports DigitalData.Modules.Database
-Imports DigitalData.Modules.Logging
-'Imports DigitalData.Modules.
 Imports DigitalData.Modules.EDMI
 Imports DigitalData.Modules.EDMI.API.Rights
-Imports DigitalData.Services.EDMIService.Messages
+Imports DigitalData.Modules.Logging
 Imports DigitalData.Services.EDMIService.Exceptions
+Imports DigitalData.Services.EDMIService.Messages
 Imports DigitalData.Services.EDMIService.Methods
 Imports DigitalData.Services.EDMIService.Methods.Database
 Imports DigitalData.Services.EDMIService.Methods.IDB
 
 
-<ServiceBehavior(InstanceContextMode:=InstanceContextMode.PerSession)>
+<ServiceBehavior(InstanceContextMode:=InstanceContextMode.PerSession,
+                 ConcurrencyMode:=ConcurrencyMode.Multiple)>
 Public Class EDMIService
     Implements IEDMIService
 
@@ -91,29 +93,29 @@ Public Class EDMIService
         _Logger = LogConfig.GetLogger()
         _IDBHelpers = New IDB.Helpers(LogConfig, MSSQL_IDB)
 
-        ' ── Konfiguration beim ersten Aufruf loggen ───────────────────────────
+        Dim oEndpointSnapshot = Interlocked.Exchange(Of String)(_ConfiguredEndpoint, String.Empty)
-        If Not String.IsNullOrEmpty(_ConfiguredEndpoint) Then
+        If Not String.IsNullOrEmpty(oEndpointSnapshot) Then
             _Logger.Info("✔ EDMIService configured | Endpoint=[{0}] | MaxCalls=[{1}] | MaxSessions=[{2}] | CPUs=[{3}]",
-                         _ConfiguredEndpoint, _ConfiguredMaxCalls, _ConfiguredMaxSessions, Environment.ProcessorCount)
+                         oEndpointSnapshot, _ConfiguredMaxCalls, _ConfiguredMaxSessions, Environment.ProcessorCount)
-            _ConfiguredEndpoint = String.Empty
         End If
-        ' ─────────────────────────────────────────────────────────────────────
 
-        ' ── Session registrieren ──────────────────────────────────────────────
         _ActiveSessions(oSessionId) = _Username
-        BuildUserList()
+        ' ← Neu: Session-Start loggen
+        _Logger.Debug("Session opened | User=[{0}] | SessionId=[{1}] | ActiveSessions=[{2}]",
+                     _Username, oSessionId, _ActiveSessions.Count)
 
         AddHandler oInstanceContext.Closed, Sub()
                                                 Dim oRemoved As String = Nothing
                                                 _ActiveSessions.TryRemove(oSessionId, oRemoved)
-                                                BuildUserList()
+                                                _Logger.Debug("Session closed | User=[{0}] | SessionId=[{1}] | ActiveSessions=[{2}]",
+                                                             _Username, oSessionId, _ActiveSessions.Count)
                                             End Sub
 
         AddHandler oInstanceContext.Faulted, Sub()
                                                  Dim oRemoved As String = Nothing
                                                  _ActiveSessions.TryRemove(oSessionId, oRemoved)
-                                                 _Logger.Warn("⚠ Session faulted | User=[{0}] | ActiveSessions=[{1}]",
+                                                 _Logger.Warn("⚠ Session faulted | User=[{0}] | SessionId=[{1}] | ActiveSessions=[{2}]",
-                                                              _Username, _ActiveSessions.Count)
+                                                              _Username, oSessionId, _ActiveSessions.Count)
                                              End Sub
 
     End Sub
@@ -199,17 +201,24 @@ Public Class EDMIService
 
 
 #Region "=== Database ==="
+    Private Shared ReadOnly _CachedTablesLock As New Object()
     Private Shared _CachedTablesSnapshot As List(Of String) = Nothing
     Private Shared _CachedTablesExpiry As DateTime = DateTime.MinValue
 
     Public Function GetCachedTables() As List(Of String) Implements IEDMIService.GetCachedTables
         Try
+            SyncLock _CachedTablesLock
                 If _CachedTablesSnapshot Is Nothing OrElse DateTime.Now > _CachedTablesExpiry Then
+                    _Logger.Debug("GetCachedTables: Refreshing cache...")
                     _CachedTablesSnapshot = GlobalState.GetCachedTables()
                     _CachedTablesExpiry = DateTime.Now.AddSeconds(30)
+                    _Logger.Debug("GetCachedTables: Cache refreshed | Count=[{0}] | NextExpiry=[{1}]",
+                                  _CachedTablesSnapshot.Count, _CachedTablesExpiry.ToString("HH:mm:ss"))
                 End If
-            Return _CachedTablesSnapshot
+                Return _CachedTablesSnapshot.ToList()
+            End SyncLock
         Catch ex As Exception
+            _Logger.Error("GetCachedTables failed | User=[{0}] | Error=[{1}]", _Username, ex.Message)
             _Logger.Error(ex)
             Return New List(Of String)
         End Try
@@ -231,21 +240,54 @@ Public Class EDMIService
     End Function
 
     Public Function ReturnDatatable(pData As GetDatatable.GetDatatableRequest) As GetDatatable.GetDatatableResponse Implements IEDMIService.ReturnDatatable
-        _Logger.Debug("Start of Method [ReturnDatatable]")
+        Dim oWatch = Stopwatch.StartNew()
+        Try
+            _Logger.Debug("ReturnDatatable | User=[{0}] | DB=[{1}] | SQL=[{2}]",
+                          _Username, pData.NamedDatabase, pData.SqlCommand)
             Dim oGetDatatable As New GetDatatable.GetDatatableMethod(LogConfig, MSSQL_IDB, MSSQL_ECM, GlobalState)
-        Return oGetDatatable.Run(pData)
+            Dim oResult = oGetDatatable.Run(pData)
+            _Logger.Debug("ReturnDatatable completed | User=[{0}] | Rows=[{1}] | Duration=[{2}ms]",
+                          _Username, If(oResult?.Table?.Rows.Count, 0), oWatch.ElapsedMilliseconds)
+            Return oResult
+        Catch ex As Exception
+            _Logger.Error("ReturnDatatable failed | User=[{0}] | Duration=[{1}ms] | Error=[{2}]",
+                          _Username, oWatch.ElapsedMilliseconds, ex.Message)
+            Throw
+        End Try
     End Function
 
     Public Function ReturnScalarValue(pData As GetScalarValue.GetScalarValueRequest) As GetScalarValue.GetScalarValueResponse Implements IEDMIService.ReturnScalarValue
-        _Logger.Debug("Start of Method [ReturnScalarValue]")
+        Dim oWatch = Stopwatch.StartNew()
+        Try
+            _Logger.Debug("ReturnScalarValue | User=[{0}] | DB=[{1}] | SQL=[{2}]",
+                          _Username, pData.NamedDatabase, pData.SqlCommand)
             Dim oGetScalarValue As New GetScalarValue.GetScalarValueMethod(LogConfig, MSSQL_IDB, MSSQL_ECM, GlobalState)
-        Return oGetScalarValue.Run(pData)
+            Dim oResult = oGetScalarValue.Run(pData)
+            _Logger.Debug("ReturnScalarValue completed | User=[{0}] | Duration=[{1}ms]",
+                          _Username, oWatch.ElapsedMilliseconds)
+            Return oResult
+        Catch ex As Exception
+            _Logger.Error("ReturnScalarValue failed | User=[{0}] | Duration=[{1}ms] | Error=[{2}]",
+                          _Username, oWatch.ElapsedMilliseconds, ex.Message)
+            Throw
+        End Try
     End Function
 
     Public Function ExecuteNonQuery(pData As ExecuteNonQuery.ExecuteNonQueryRequest) As ExecuteNonQuery.ExecuteNonQueryResponse Implements IEDMIService.ExecuteNonQuery
-        _Logger.Debug("Start of Method [ExecuteNonQuery]")
+        Dim oWatch = Stopwatch.StartNew()
+        Try
+            _Logger.Debug("ExecuteNonQuery | User=[{0}] | DB=[{1}] | SQL=[{2}]",
+                          _Username, pData.NamedDatabase, pData.SqlCommand)
             Dim oExecuteNonQuery As New ExecuteNonQuery.ExecuteNonQueryMethod(LogConfig, MSSQL_IDB, MSSQL_ECM, GlobalState)
-        Return oExecuteNonQuery.Run(pData)
+            Dim oResult = oExecuteNonQuery.Run(pData)
+            _Logger.Debug("ExecuteNonQuery completed | User=[{0}] | Duration=[{1}ms]",
+                          _Username, oWatch.ElapsedMilliseconds)
+            Return oResult
+        Catch ex As Exception
+            _Logger.Error("ExecuteNonQuery failed | User=[{0}] | Duration=[{1}ms] | Error=[{2}]",
+                          _Username, oWatch.ElapsedMilliseconds, ex.Message)
+            Throw
+        End Try
     End Function
 #End Region
 
@@ -259,7 +301,7 @@ Public Class EDMIService
 
         Catch ex As FaultException
             _Logger.Error(ex)
-            Throw ex
+            Throw
 
         Catch ex As Exception
             _Logger.Error(ex)
@@ -276,7 +318,7 @@ Public Class EDMIService
 
         Catch ex As FaultException
             _Logger.Error(ex)
-            Throw ex
+            Throw
 
         Catch ex As Exception
             _Logger.Error(ex)
@@ -293,7 +335,7 @@ Public Class EDMIService
 
         Catch ex As FaultException
             _Logger.Error(ex)
-            Throw ex
+            Throw
 
         Catch ex As Exception
             _Logger.Error(ex)
@@ -313,7 +355,7 @@ Public Class EDMIService
 
         Catch ex As FaultException
             _Logger.Error(ex)
-            Throw ex
+            Throw
 
         Catch ex As Exception
             _Logger.Error(ex)
@@ -330,7 +372,7 @@ Public Class EDMIService
 
         Catch ex As FaultException
             _Logger.Error(ex)
-            Throw ex
+            Throw
 
         Catch ex As Exception
             _Logger.Error(ex)
@@ -347,7 +389,7 @@ Public Class EDMIService
 
         Catch ex As FaultException
             _Logger.Error(ex)
-            Throw ex
+            Throw
 
         Catch ex As Exception
             _Logger.Error(ex)
@@ -367,7 +409,7 @@ Public Class EDMIService
 
         Catch ex As FaultException
             _Logger.Error(ex)
-            Throw ex
+            Throw
 
         Catch ex As Exception
             _Logger.Error(ex)
@@ -384,7 +426,7 @@ Public Class EDMIService
 
         Catch ex As FaultException
             _Logger.Error(ex)
-            Throw ex
+            Throw
 
         Catch ex As Exception
             _Logger.Error(ex)
@@ -401,7 +443,7 @@ Public Class EDMIService
 
         Catch ex As FaultException
             _Logger.Error(ex)
-            Throw ex
+            Throw
 
         Catch ex As Exception
             _Logger.Error(ex)
@@ -502,7 +544,7 @@ Public Class EDMIService
 
         Catch ex As FaultException
             _Logger.Error(ex)
-            Throw ex
+            Throw
 
         Catch ex As Exception
             _Logger.Error(ex)
@@ -522,15 +564,17 @@ Public Class EDMIService
                 Throw New FaultException(Of ObjectDoesNotExistFault)(oFault, oFault.ErrorMessage)
             End If
 
-            Return New DocumentInfoResponse With {
+            Dim oResult = New DocumentInfoResponse With {
                 .FileRight = oAccessRight,
                 .FullPath = oFullPath
             }
-            _Logger.Debug("End GetFileInfoByObjectId!")
+            _Logger.Debug("End GetFileInfoByObjectId!")  ' ← jetzt erreichbar
+            Return oResult
+
         Catch ex As FaultException
             _Logger.Warn("⚠ GetFileInfoByObjectId: " & ex.Message)
             _Logger.Error(ex)
-            Throw ex
+            Throw
 
         Catch ex As Exception
             _Logger.Warn("⚠ GetFileInfoByObjectId: " & ex.Message)
@@ -550,7 +594,7 @@ Public Class EDMIService
 
         Catch ex As FaultException
             _Logger.Error(ex)
-            Throw ex
+            Throw
 
         Catch ex As Exception
             _Logger.Error(ex)
@@ -607,13 +651,17 @@ Public Class EDMIService
 
 
     Private Function GetFault(Exception As Exception) As FaultException
+        Dim oMessage = If(Exception?.Message, "Unknown error")
+        _Logger.Error("Wrapping exception as FaultException | Error=[{0}]", oMessage)
         Dim oFault As New UnexpectedErrorFault(Exception)
-        Return New FaultException(Of UnexpectedErrorFault)(oFault, New FaultReason(oFault.InnerException.Message))
+        Dim oReason = If(Exception?.InnerException?.Message, oMessage)
+        Return New FaultException(Of UnexpectedErrorFault)(oFault, New FaultReason(oReason))
     End Function
 
     Private Function GetFault(ErrorMessage As String) As FaultException
+        _Logger.Error("Wrapping error as FaultException | Error=[{0}]", ErrorMessage)
         Dim oFault As New UnexpectedErrorFault(New ApplicationException(ErrorMessage))
-        Return New FaultException(Of UnexpectedErrorFault)(oFault, New FaultReason(oFault.InnerException.Message))
+        Return New FaultException(Of UnexpectedErrorFault)(oFault, New FaultReason(ErrorMessage))
     End Function
 
     Private Function GetFullPathForObjectId(ObjectId As Long) As String