public IAsyncResult InvokeBegin(object instance, object[] inputs, AsyncCallback callback, object state)
{
if (instance == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SFxNoServiceObject)));
}
if (inputs == null)
{
if (this.InputParameterCount > 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SFxInputParametersToServiceNull, this.InputParameterCount)));
}
}
else if (inputs.Length != this.InputParameterCount)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SFxInputParametersToServiceInvalid, this.InputParameterCount, inputs.Length)));
}
this.outputs = EmptyArray.Allocate(this.OutputParameterCount);
AsyncMethodInvoker.StartOperationInvokePerformanceCounters(this.taskMethod.Name);
IAsyncResult returnValue;
bool callFailed = true;
bool callFaulted = false;
ServiceModelActivity activity = null;
try
{
Activity boundActivity = null;
AsyncMethodInvoker.CreateActivityInfo(ref activity, ref boundActivity);
AsyncMethodInvoker.StartOperationInvokeTrace(this.taskMethod.Name);
using (boundActivity)
{
if (DiagnosticUtility.ShouldUseActivity)
{
string activityName = SR.GetString(SR.ActivityExecuteMethod, this.taskMethod.DeclaringType.FullName, this.taskMethod.Name);
ServiceModelActivity.Start(activity, activityName, ActivityType.ExecuteUserCode);
}
object taskReturnValue = this.InvokeDelegate(instance, inputs, this.outputs);
if (taskReturnValue == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("task");
}
else if (this.isGenericTask)
{
returnValue = (IAsyncResult)this.toAsyncMethodInfo.Invoke(null, new object[] { taskReturnValue, callback, state });
}
else
{
returnValue = ((Task)taskReturnValue).AsAsyncResult(callback, state);
}
callFailed = false;
}
}
catch (System.Security.SecurityException e)
{
DiagnosticUtility.TraceHandledException(e, TraceEventType.Warning);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(AuthorizationBehavior.CreateAccessDeniedFaultException());
}
catch (Exception e)
{
TraceUtility.TraceUserCodeException(e, this.taskMethod);
if (e is FaultException)
{
callFaulted = true;
callFailed = false;
}
throw;
}
finally
{
ServiceModelActivity.Stop(activity);
// Any exception above means InvokeEnd will not be called, so complete it here.
if (callFailed || callFaulted)
{
AsyncMethodInvoker.StopOperationInvokeTrace(callFailed, callFaulted, this.TaskMethod.Name);
AsyncMethodInvoker.StopOperationInvokePerformanceCounters(callFailed, callFaulted, this.TaskMethod.Name);
}
}
return(returnValue);
}
public object InvokeEnd(object instance, out object[] outputs, IAsyncResult result)
{
object returnVal;
bool callFailed = true;
bool callFaulted = false;
ServiceModelActivity activity = null;
if (instance == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SFxNoServiceObject)));
}
try
{
Activity boundOperation = null;
AsyncMethodInvoker.GetActivityInfo(ref activity, ref boundOperation);
using (boundOperation)
{
Task task = result as Task;
Fx.Assert(task != null, "InvokeEnd needs to be called with the result returned from InvokeBegin.");
if (task.IsFaulted)
{
Fx.Assert(task.Exception != null, "Task.IsFaulted guarantees non-null exception.");
// If FaultException is thrown, we will get 'callFaulted' behavior below.
// Any other exception will retain 'callFailed' behavior.
throw FxTrace.Exception.AsError <FaultException>(task.Exception);
}
// Task cancellation without an exception indicates failure but we have no
// additional information to provide. Accessing Task.Result will throw a
// TaskCanceledException. For consistency between void Tasks and Task<T>,
// we detect and throw here.
if (task.IsCanceled)
{
throw FxTrace.Exception.AsError(new TaskCanceledException(task));
}
outputs = this.outputs;
if (this.isGenericTask)
{
returnVal = this.taskTResultGetMethod.Invoke(result, Type.EmptyTypes);
}
else
{
returnVal = null;
}
callFailed = false;
}
}
catch (SecurityException e)
{
DiagnosticUtility.TraceHandledException(e, TraceEventType.Warning);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(AuthorizationBehavior.CreateAccessDeniedFaultException());
}
catch (FaultException)
{
callFaulted = true;
callFailed = false;
throw;
}
finally
{
ServiceModelActivity.Stop(activity);
AsyncMethodInvoker.StopOperationInvokeTrace(callFailed, callFaulted, this.TaskMethod.Name);
AsyncMethodInvoker.StopOperationInvokePerformanceCounters(callFailed, callFaulted, this.TaskMethod.Name);
}
return(returnVal);
}
public object InvokeEnd(object instance, out object[] outputs, IAsyncResult result)
{
if (instance == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SFxNoServiceObject)));
}
object returnVal = null;
bool callFailed = true;
bool callFaulted = false;
ServiceModelActivity activity = null;
Activity boundOperation = null;
try
{
AsyncMethodInvoker.GetActivityInfo(ref activity, ref boundOperation);
Task <Tuple <object, object[]> > invokeTask = result as Task <Tuple <object, object[]> >;
if (invokeTask == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentException(SR.SFxInvalidCallbackIAsyncResult));
}
AggregateException ae = null;
Tuple <object, object[]> tuple = null;
Task task = null;
if (invokeTask.IsFaulted)
{
Fx.Assert(invokeTask.Exception != null, "Task.IsFaulted guarantees non-null exception.");
ae = invokeTask.Exception;
}
else
{
Fx.Assert(invokeTask.IsCompleted, "Task.Result is expected to be completed");
tuple = invokeTask.Result;
task = tuple.Item1 as Task;
if (task == null)
{
outputs = tuple.Item2;
return(null);
}
if (task.IsFaulted)
{
Fx.Assert(task.Exception != null, "Task.IsFaulted guarantees non-null exception.");
ae = task.Exception;
}
}
if (ae != null && ae.InnerException != null)
{
if (ae.InnerException is FaultException)
{
// If invokeTask.IsFaulted we produce the 'callFaulted' behavior below.
// Any other exception will retain 'callFailed' behavior.
callFaulted = true;
callFailed = false;
}
if (ae.InnerException is SecurityException)
{
DiagnosticUtility.TraceHandledException(ae.InnerException, TraceEventType.Warning);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(AuthorizationBehavior.CreateAccessDeniedFaultException());
}
invokeTask.GetAwaiter().GetResult();
}
// Task cancellation without an exception indicates failure but we have no
// additional information to provide. Accessing Task.Result will throw a
// TaskCanceledException. For consistency between void Tasks and Task<T>,
// we detect and throw here.
if (task.IsCanceled)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new TaskCanceledException(task));
}
outputs = tuple.Item2;
returnVal = this.isGenericTask ? this.taskTResultGetMethod.Invoke(task, Type.EmptyTypes) : null;
callFailed = false;
return(returnVal);
}
finally
{
if (boundOperation != null)
{
((IDisposable)boundOperation).Dispose();
}
ServiceModelActivity.Stop(activity);
AsyncMethodInvoker.StopOperationInvokeTrace(callFailed, callFaulted, this.TaskMethod.Name);
AsyncMethodInvoker.StopOperationInvokePerformanceCounters(callFailed, callFaulted, this.TaskMethod.Name);
}
}
internal DispatchOperationRuntime(DispatchOperation operation, ImmutableDispatchRuntime parent)
{
if (operation == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("operation");
}
if (parent == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("parent");
}
if (operation.Invoker == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(System.ServiceModel.SR.GetString("RuntimeRequiresInvoker0")));
}
this.disposeParameters = operation.AutoDisposeParameters && !operation.HasNoDisposableParameters;
this.parent = parent;
this.callContextInitializers = EmptyArray <ICallContextInitializer> .ToArray(operation.CallContextInitializers);
this.inspectors = EmptyArray <IParameterInspector> .ToArray(operation.ParameterInspectors);
this.faultFormatter = operation.FaultFormatter;
this.impersonation = operation.Impersonation;
this.deserializeRequest = operation.DeserializeRequest;
this.serializeReply = operation.SerializeReply;
this.formatter = operation.Formatter;
this.invoker = operation.Invoker;
try
{
this.isSynchronous = operation.Invoker.IsSynchronous;
}
catch (Exception exception)
{
if (Fx.IsFatal(exception))
{
throw;
}
throw DiagnosticUtility.ExceptionUtility.ThrowHelperCallback(exception);
}
this.isTerminating = operation.IsTerminating;
this.action = operation.Action;
this.name = operation.Name;
this.releaseInstanceAfterCall = operation.ReleaseInstanceAfterCall;
this.releaseInstanceBeforeCall = operation.ReleaseInstanceBeforeCall;
this.replyAction = operation.ReplyAction;
this.isOneWay = operation.IsOneWay;
this.transactionAutoComplete = operation.TransactionAutoComplete;
this.transactionRequired = operation.TransactionRequired;
this.receiveContextAcknowledgementMode = operation.ReceiveContextAcknowledgementMode;
this.bufferedReceiveEnabled = operation.BufferedReceiveEnabled;
this.isInsideTransactedReceiveScope = operation.IsInsideTransactedReceiveScope;
if ((this.formatter == null) && (this.deserializeRequest || this.serializeReply))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(System.ServiceModel.SR.GetString("DispatchRuntimeRequiresFormatter0", new object[] { this.name })));
}
if ((operation.Parent.InstanceProvider == null) && (operation.Parent.Type != null))
{
SyncMethodInvoker invoker = this.invoker as SyncMethodInvoker;
if (invoker != null)
{
this.ValidateInstanceType(operation.Parent.Type, invoker.Method);
}
AsyncMethodInvoker invoker2 = this.invoker as AsyncMethodInvoker;
if (invoker2 != null)
{
this.ValidateInstanceType(operation.Parent.Type, invoker2.BeginMethod);
this.ValidateInstanceType(operation.Parent.Type, invoker2.EndMethod);
}
}
}
private async Task <Tuple <object, object[]> > InvokeAsync(object instance, object[] inputs)
{
EnsureIsInitialized();
if (instance == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SFxNoServiceObject)));
}
if (inputs == null)
{
if (this.inputParameterCount > 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SFxInputParametersToServiceNull, this.inputParameterCount)));
}
}
else if (inputs.Length != this.inputParameterCount)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SFxInputParametersToServiceInvalid, this.inputParameterCount, inputs.Length)));
}
object[] outputs = EmptyArray.Allocate(this.outputParameterCount);
AsyncMethodInvoker.StartOperationInvokePerformanceCounters(this.taskMethod.Name);
object returnValue;
ServiceModelActivity activity = null;
Activity boundActivity = null;
try
{
AsyncMethodInvoker.CreateActivityInfo(ref activity, ref boundActivity);
AsyncMethodInvoker.StartOperationInvokeTrace(this.taskMethod.Name);
if (DiagnosticUtility.ShouldUseActivity)
{
string activityName = SR.GetString(SR.ActivityExecuteMethod, this.taskMethod.DeclaringType.FullName, this.taskMethod.Name);
ServiceModelActivity.Start(activity, activityName, ActivityType.ExecuteUserCode);
}
OperationContext.EnableAsyncFlow();
returnValue = this.invokeDelegate(instance, inputs, outputs);
if (returnValue == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("task");
}
var returnValueTask = returnValue as Task;
if (returnValueTask != null)
{
// Only return once the task has completed
await returnValueTask;
}
return(Tuple.Create(returnValue, outputs));
}
catch (SecurityException e)
{
DiagnosticUtility.TraceHandledException(e, TraceEventType.Warning);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(AuthorizationBehavior.CreateAccessDeniedFaultException());
}
catch (Exception e)
{
TraceUtility.TraceUserCodeException(e, this.taskMethod);
throw;
}
finally
{
OperationContext.DisableAsyncFlow();
if (boundActivity != null)
{
((IDisposable)boundActivity).Dispose();
}
ServiceModelActivity.Stop(activity);
}
}
