/// <summary>
/// Asynchronous implementation of the Invoke (Begin)
/// </summary>
public IAsyncResult InvokeBegin(object instance, object[] inputs, AsyncCallback callback, object state)
{
IAsyncResult result = null;
// Create the Wcf audit event
var auditWcfEvent = CreateWcfAuditEvent(instance, inputs);
// Create the audit scope
var eventType = _eventType.Replace("{contract}", auditWcfEvent.ContractName)
.Replace("{operation}", auditWcfEvent.OperationName);
var auditEventWcf = new AuditEventWcfAction()
{
WcfEvent = auditWcfEvent
};
// Create the audit scope
var auditScope = AuditScope.Create(new AuditScopeOptions()
{
EventType = eventType,
CreationPolicy = _creationPolicy,
AuditEvent = auditEventWcf,
DataProvider = GetAuditDataProvider(instance),
CallingMethod = _operationDescription.SyncMethod ?? _operationDescription.TaskMethod
});
// Store a reference to this audit scope
var callbackState = new AuditScopeState()
{
AuditScope = auditScope,
OriginalUserCallback = callback,
OriginalUserState = state
};
AuditBehavior.CurrentAuditScope = auditScope;
try
{
result = _baseInvoker.InvokeBegin(instance, inputs, this.InvokerCallback, callbackState);
}
catch (Exception ex)
{
AuditBehavior.CurrentAuditScope = null;
auditWcfEvent.Fault = GetWcfFaultData(ex);
auditWcfEvent.Success = false;
(auditScope.Event as AuditEventWcfAction).WcfEvent = auditWcfEvent;
auditScope.Dispose();
throw;
}
AuditBehavior.CurrentAuditScope = null;
return(new AuditScopeAsyncResult(result, callbackState));
}
internal AuditScopeAsyncResult(IAsyncResult originalResult, AuditScopeState auditScopeState)
{
_originalResult = originalResult;
_auditScopeState = auditScopeState;
}