public GetInstanceAsyncResult(DurableInstanceManager instanceManager, InstanceKey instanceKey, ICollection<InstanceKey> additionalKeys, WorkflowGetInstanceContext parameters, TimeSpan timeout, AsyncCallback callback, object state) : this(instanceManager, parameters, timeout, callback, state)
{
this.instanceKey = instanceKey;
this.additionalKeys = additionalKeys;
if (this.GetInstance())
{
base.Complete(true);
}
}
bool Process()
{
EnsureInstanceIdAndIdentity();
this.getInstanceContext = new WorkflowGetInstanceContext
{
WorkflowHostingEndpoint = this.invoker.endpoint as WorkflowHostingEndpoint,
CanCreateInstance = this.invoker.CanCreateInstance,
Inputs = this.inputs,
OperationContext = this.operationContext,
};
IAsyncResult result;
bool shouldAbandon = true;
try
{
try
{
if (!this.invoker.isControlOperation && this.instanceKey != null && this.instanceKey.IsValid)
{
result = this.invoker.instanceManager.BeginGetInstance(this.instanceKey, this.additionalKeys, this.getInstanceContext,
this.invoker.persistTimeout, this.PrepareAsyncCompletion(handleEndGetInstance), this);
}
else
{
result = this.invoker.instanceManager.BeginGetInstance(this.instanceId, this.getInstanceContext, this.updatedIdentity,
this.invoker.persistTimeout, this.PrepareAsyncCompletion(handleEndGetInstance), this);
}
shouldAbandon = false;
}
catch (InstanceLockedException exception)
{
RedirectionException redirectionException;
if (TryCreateRedirectionException(exception, out redirectionException))
{
throw FxTrace.Exception.AsError(redirectionException);
}
throw FxTrace.Exception.AsError(CreateFaultException(exception));
}
catch (OperationCanceledException exception)
{
BufferReceiveHelper(ref shouldAbandon, true);
throw FxTrace.Exception.AsError(new RetryException(null, exception));
}
catch (InstancePersistenceException exception)
{
BufferReceiveHelper(ref shouldAbandon, false);
if (exception is InstanceKeyNotReadyException)
{
this.invoker.host.RaiseUnknownMessageReceived(this.operationContext.IncomingMessage);
}
this.invoker.host.FaultServiceHostIfNecessary(exception);
throw FxTrace.Exception.AsError(CreateFaultException(exception));
}
catch (InstanceUpdateException)
{
throw FxTrace.Exception.AsError(new FaultException(OperationExecutionFault.CreateUpdateFailedFault(
SR.WorkflowInstanceUpdateFailed(this.instanceId, this.updatedIdentity.Identity))));
}
}
catch (Exception exception)
{
if (Fx.IsFatal(exception))
{
throw;
}
if (!shouldAbandon || !ShouldAbandonReceiveContext())
{
throw;
}
return AbandonReceiveContext(exception);
}
if (result.CompletedSynchronously)
{
return HandleEndGetInstance(result);
}
return false;
}
public GetInstanceAsyncResult(DurableInstanceManager instanceManager, Guid instanceId, WorkflowGetInstanceContext parameters, TimeSpan timeout, AsyncCallback callback, object state) : this(instanceManager, parameters, timeout, callback, state)
{
this.instanceId = instanceId;
if (this.GetInstance())
{
base.Complete(true);
}
}
private GetInstanceAsyncResult(DurableInstanceManager instanceManager, WorkflowGetInstanceContext parameters, TimeSpan timeout, AsyncCallback callback, object state) : base(callback, state)
{
this.instanceManager = instanceManager;
this.parameters = parameters;
this.timeout = timeout;
this.loadAny = parameters == null;
base.OnCompleting = onCompleting;
Transaction current = Transaction.Current;
if ((current == null) && this.instanceManager.Host.IsLoadTransactionRequired)
{
this.committableTransaction = new CommittableTransaction(this.timeout);
current = this.committableTransaction;
}
if (current != null)
{
this.transaction = current.DependentClone(DependentCloneOption.BlockCommitUntilComplete);
}
}
internal IAsyncResult BeginGetInstance(InstanceKey instanceKey, ICollection<InstanceKey> additionalKeys, WorkflowGetInstanceContext parameters, TimeSpan timeout, AsyncCallback callback, object state)
{
ThrowIfClosedOrAborted(this.state);
return new GetInstanceAsyncResult(this, instanceKey, additionalKeys, parameters, timeout, callback, state);
}
internal IAsyncResult BeginGetInstance(Guid instanceId, WorkflowGetInstanceContext parameters, TimeSpan timeout, AsyncCallback callback, object state)
{
ThrowIfClosedOrAborted(this.state);
return new GetInstanceAsyncResult(this, instanceId, parameters, timeout, callback, state);
}
private bool Process()
{
IAsyncResult result;
this.EnsureInstanceId();
WorkflowGetInstanceContext context = new WorkflowGetInstanceContext {
WorkflowHostingEndpoint = this.invoker.endpoint as WorkflowHostingEndpoint,
CanCreateInstance = this.invoker.CanCreateInstance,
Inputs = this.inputs,
OperationContext = this.operationContext
};
this.getInstanceContext = context;
bool shouldAbandon = true;
try
{
try
{
if ((!this.invoker.isControlOperation && (this.instanceKey != null)) && this.instanceKey.IsValid)
{
result = this.invoker.instanceManager.BeginGetInstance(this.instanceKey, this.additionalKeys, this.getInstanceContext, this.invoker.persistTimeout, base.PrepareAsyncCompletion(handleEndGetInstance), this);
}
else
{
result = this.invoker.instanceManager.BeginGetInstance(this.instanceId, this.getInstanceContext, this.invoker.persistTimeout, base.PrepareAsyncCompletion(handleEndGetInstance), this);
}
shouldAbandon = false;
}
catch (InstanceLockedException exception)
{
RedirectionException exception2;
if (this.TryCreateRedirectionException(exception, out exception2))
{
throw System.ServiceModel.Activities.FxTrace.Exception.AsError(exception2);
}
throw System.ServiceModel.Activities.FxTrace.Exception.AsError(CreateFaultException(exception));
}
catch (OperationCanceledException exception3)
{
this.BufferReceiveHelper(ref shouldAbandon, true);
throw System.ServiceModel.Activities.FxTrace.Exception.AsError(new RetryException(null, exception3));
}
catch (InstancePersistenceException exception4)
{
this.BufferReceiveHelper(ref shouldAbandon, false);
if (exception4 is InstanceKeyNotReadyException)
{
this.invoker.host.RaiseUnknownMessageReceived(this.operationContext.IncomingMessage);
}
this.invoker.host.FaultServiceHostIfNecessary(exception4);
throw System.ServiceModel.Activities.FxTrace.Exception.AsError(CreateFaultException(exception4));
}
}
catch (Exception exception5)
{
if (Fx.IsFatal(exception5))
{
throw;
}
if (!shouldAbandon || !this.ShouldAbandonReceiveContext())
{
throw;
}
return this.AbandonReceiveContext(exception5);
}
return (result.CompletedSynchronously && HandleEndGetInstance(result));
}
