/// <summary>
/// Adds CancellationToken to the grain extension
/// so that it can be cancelled through remote call to the CancellationSourcesExtension.
/// </summary>
/// <param name="target"></param>
/// <param name="request"></param>
/// <param name="logger"></param>
internal static void RegisterCancellationTokens(IAddressable target, InvokeMethodRequest request, Logger logger)
{
for (var i = 0; i < request.Arguments.Length; i++)
{
var arg = request.Arguments[i];
if (!(arg is GrainCancellationToken)) continue;
var grainToken = ((GrainCancellationToken) request.Arguments[i]);
CancellationSourcesExtension cancellationExtension;
if (!SiloProviderRuntime.Instance.TryGetExtensionHandler(out cancellationExtension))
{
cancellationExtension = new CancellationSourcesExtension();
if (!SiloProviderRuntime.Instance.TryAddExtension(cancellationExtension))
{
logger.Error(
ErrorCode.CancellationExtensionCreationFailed,
$"Could not add cancellation token extension to: {target}");
return;
}
}
// Replacing the half baked GrainCancellationToken that came from the wire with locally fully created one.
request.Arguments[i] = cancellationExtension.RecordCancellationToken(grainToken.Id, grainToken.IsCancellationRequested);
}
}
/// <summary>
/// Adds CancellationToken to the grain extension
/// so that it can be cancelled through remote call to the CancellationSourcesExtension.
/// </summary>
/// <param name="target"></param>
/// <param name="request"></param>
/// <param name="logger"></param>
/// <param name="siloRuntimeClient"></param>
internal static void RegisterCancellationTokens(
IAddressable target,
InvokeMethodRequest request,
Logger logger,
ISiloRuntimeClient siloRuntimeClient)
{
for (var i = 0; i < request.Arguments.Length; i++)
{
var arg = request.Arguments[i];
if (!(arg is GrainCancellationToken))
{
continue;
}
var grainToken = ((GrainCancellationToken)request.Arguments[i]);
CancellationSourcesExtension cancellationExtension;
if (!siloRuntimeClient.TryGetExtensionHandler(out cancellationExtension))
{
cancellationExtension = new CancellationSourcesExtension();
if (!siloRuntimeClient.TryAddExtension(cancellationExtension))
{
logger.Error(
ErrorCode.CancellationExtensionCreationFailed,
$"Could not add cancellation token extension to: {target}");
return;
}
}
// Replacing the half baked GrainCancellationToken that came from the wire with locally fully created one.
request.Arguments[i] = cancellationExtension.RecordCancellationToken(grainToken.Id, grainToken.IsCancellationRequested);
}
}
public async Task Invoke(IAddressable target, IInvokable invokable, Message message)
{
try
{
// Don't process messages that have already timed out
if (message.IsExpired)
{
message.DropExpiredMessage(MessagingStatisticsGroup.Phase.Invoke);
return;
}
RequestContext.Import(message.RequestContextData);
if (Config.Globals.PerformDeadlockDetection && !message.TargetGrain.IsSystemTarget)
{
UpdateDeadlockInfoInRequestContext(new RequestInvocationHistory(message));
// RequestContext is automatically saved in the msg upon send and propagated to the next hop
// in RuntimeClient.CreateMessage -> RequestContext.ExportToMessage(message);
}
object resultObject;
try
{
var request = (InvokeMethodRequest)message.GetDeserializedBody(this.SerializationManager);
if (request.Arguments != null)
{
CancellationSourcesExtension.RegisterCancellationTokens(target, request, logger, this);
}
var invoker = invokable.GetInvoker(typeManager, request.InterfaceId, message.GenericGrainType);
if (invoker is IGrainExtensionMethodInvoker &&
!(target is IGrainExtension))
{
// We are trying the invoke a grain extension method on a grain
// -- most likely reason is that the dynamic extension is not installed for this grain
// So throw a specific exception here rather than a general InvalidCastException
var error = String.Format(
"Extension not installed on grain {0} attempting to invoke type {1} from invokable {2}",
target.GetType().FullName, invoker.GetType().FullName, invokable.GetType().FullName);
var exc = new GrainExtensionNotInstalledException(error);
string extraDebugInfo = null;
#if DEBUG
extraDebugInfo = Utils.GetStackTrace();
#endif
logger.Warn(ErrorCode.Stream_ExtensionNotInstalled,
string.Format("{0} for message {1} {2}", error, message, extraDebugInfo), exc);
throw exc;
}
#pragma warning disable 618
var invokeInterceptor = this.CurrentStreamProviderRuntime?.GetInvokeInterceptor();
#pragma warning restore 618
var requestInvoker = new GrainMethodInvoker(target, request, invoker, siloInterceptors, interfaceToImplementationMapping, invokeInterceptor);
await requestInvoker.Invoke();
resultObject = requestInvoker.Result;
}
catch (Exception exc1)
{
if (invokeExceptionLogger.IsVerbose || message.Direction == Message.Directions.OneWay)
{
invokeExceptionLogger.Warn(ErrorCode.GrainInvokeException,
"Exception during Grain method call of message: " + message, exc1);
}
if (exc1 is InconsistentStateException && target is Grain)
{
var activation = ((Grain)target).Data;
invokeExceptionLogger.Info($"Deactivating {activation} due to inconsistent state.");
this.DeactivateOnIdle(activation.ActivationId);
}
if (message.Direction != Message.Directions.OneWay)
{
SafeSendExceptionResponse(message, exc1);
}
return;
}
if (message.Direction == Message.Directions.OneWay)
{
return;
}
SafeSendResponse(message, resultObject);
}
catch (Exception exc2)
{
logger.Warn(ErrorCode.Runtime_Error_100329, "Exception during Invoke of message: " + message, exc2);
if (message.Direction != Message.Directions.OneWay)
{
SafeSendExceptionResponse(message, exc2);
}
}
}
public async Task Invoke(IAddressable target, IInvokable invokable, Message message)
{
try
{
// Don't process messages that have already timed out
if (message.IsExpired)
{
message.DropExpiredMessage(MessagingStatisticsGroup.Phase.Invoke);
return;
}
RequestContextExtensions.Import(message.RequestContextData);
if (schedulingOptions.PerformDeadlockDetection && !message.TargetGrain.IsSystemTarget)
{
UpdateDeadlockInfoInRequestContext(new RequestInvocationHistory(message.TargetGrain, message.TargetActivation, message.DebugContext));
// RequestContext is automatically saved in the msg upon send and propagated to the next hop
// in RuntimeClient.CreateMessage -> RequestContextExtensions.ExportToMessage(message);
}
bool startNewTransaction = false;
ITransactionInfo transactionInfo = message.TransactionInfo;
if (message.IsTransactionRequired && transactionInfo == null)
{
// TODO: this should be a configurable parameter
var transactionTimeout = Debugger.IsAttached ? TimeSpan.FromMinutes(30) : TimeSpan.FromSeconds(10);
// Start a new transaction
transactionInfo = await this.transactionAgent.Value.StartTransaction(message.IsReadOnly, transactionTimeout);
startNewTransaction = true;
}
if (transactionInfo != null)
{
TransactionContext.SetTransactionInfo(transactionInfo);
}
object resultObject;
try
{
var request = (InvokeMethodRequest)message.GetDeserializedBody(this.serializationManager);
if (request.Arguments != null)
{
CancellationSourcesExtension.RegisterCancellationTokens(target, request, this.loggerFactory, logger, this, this.cancellationTokenRuntime);
}
var invoker = invokable.GetInvoker(typeManager, request.InterfaceId, message.GenericGrainType);
if (invoker is IGrainExtensionMethodInvoker &&
!(target is IGrainExtension))
{
// We are trying the invoke a grain extension method on a grain
// -- most likely reason is that the dynamic extension is not installed for this grain
// So throw a specific exception here rather than a general InvalidCastException
var error = String.Format(
"Extension not installed on grain {0} attempting to invoke type {1} from invokable {2}",
target.GetType().FullName, invoker.GetType().FullName, invokable.GetType().FullName);
var exc = new GrainExtensionNotInstalledException(error);
string extraDebugInfo = null;
#if DEBUG
extraDebugInfo = Utils.GetStackTrace();
#endif
logger.Warn(ErrorCode.Stream_ExtensionNotInstalled,
string.Format("{0} for message {1} {2}", error, message, extraDebugInfo), exc);
throw exc;
}
var requestInvoker = new GrainMethodInvoker(target, request, invoker, GrainCallFilters, interfaceToImplementationMapping);
await requestInvoker.Invoke();
resultObject = requestInvoker.Result;
}
catch (Exception exc1)
{
if (invokeExceptionLogger.IsEnabled(LogLevel.Debug) || message.Direction == Message.Directions.OneWay)
{
invokeExceptionLogger.Warn(ErrorCode.GrainInvokeException,
"Exception during Grain method call of message: " + message, exc1);
}
transactionInfo = TransactionContext.GetTransactionInfo();
if (transactionInfo != null)
{
// Must abort the transaction on exceptions
transactionInfo.IsAborted = true;
if (startNewTransaction)
{
var abortException = (exc1 as OrleansTransactionAbortedException) ??
new OrleansTransactionAbortedException(transactionInfo.TransactionId.ToString(), exc1);
this.transactionAgent.Value.Abort(transactionInfo, abortException);
exc1 = abortException;
}
}
// If a grain allowed an inconsistent state exception to escape and the exception originated from
// this activation, then deactivate it.
var ise = exc1 as InconsistentStateException;
if (ise != null && ise.IsSourceActivation)
{
// Mark the exception so that it doesn't deactivate any other activations.
ise.IsSourceActivation = false;
var activation = (target as Grain)?.Data;
if (activation != null)
{
invokeExceptionLogger.Info($"Deactivating {activation} due to inconsistent state.");
this.DeactivateOnIdle(activation.ActivationId);
}
}
if (message.Direction != Message.Directions.OneWay)
{
TransactionContext.Clear();
SafeSendExceptionResponse(message, exc1);
}
return;
}
transactionInfo = TransactionContext.GetTransactionInfo();
if (transactionInfo != null && !transactionInfo.ReconcilePending(out var numberOrphans))
{
var abortException = new OrleansOrphanCallException(transactionInfo.TransactionId.ToString(), numberOrphans);
// Can't exit before the transaction completes.
TransactionContext.GetTransactionInfo().IsAborted = true;
if (startNewTransaction)
{
this.transactionAgent.Value.Abort(TransactionContext.GetTransactionInfo(), abortException);
}
if (message.Direction != Message.Directions.OneWay)
{
TransactionContext.Clear();
SafeSendExceptionResponse(message, abortException);
}
return;
}
if (startNewTransaction)
{
// This request started the transaction, so we try to commit before returning.
await this.transactionAgent.Value.Commit(transactionInfo);
TransactionContext.Clear();
}
if (message.Direction == Message.Directions.OneWay)
{
return;
}
SafeSendResponse(message, resultObject);
}
catch (Exception exc2)
{
logger.Warn(ErrorCode.Runtime_Error_100329, "Exception during Invoke of message: " + message, exc2);
try
{
if (exc2 is OrleansTransactionInDoubtException)
{
this.logger.LogError(exc2, "Transaction failed due to in doubt transaction");
}
else if (TransactionContext.GetTransactionInfo() != null)
{
// Must abort the transaction on exceptions
TransactionContext.GetTransactionInfo().IsAborted = true;
var abortException = (exc2 as OrleansTransactionAbortedException) ??
new OrleansTransactionAbortedException(TransactionContext.GetTransactionInfo().TransactionId.ToString(), exc2);
this.transactionAgent.Value.Abort(TransactionContext.GetTransactionInfo(), abortException);
}
}
finally
{
TransactionContext.Clear();
if (message.Direction != Message.Directions.OneWay)
{
SafeSendExceptionResponse(message, exc2);
}
}
}
finally
{
TransactionContext.Clear();
}
}
public async Task Invoke(IGrainContext target, Message message)
{
try
{
// Don't process messages that have already timed out
if (message.IsExpired)
{
this.messagingTrace.OnDropExpiredMessage(message, MessagingStatisticsGroup.Phase.Invoke);
return;
}
RequestContextExtensions.Import(message.RequestContextData);
bool startNewTransaction = false;
ITransactionInfo transactionInfo = message.TransactionInfo;
if (message.IsTransactionRequired && transactionInfo == null)
{
// TODO: this should be a configurable parameter
var transactionTimeout = Debugger.IsAttached ? TimeSpan.FromMinutes(30) : TimeSpan.FromSeconds(10);
// Start a new transaction
transactionInfo = await this.transactionAgent.StartTransaction(message.IsReadOnly, transactionTimeout);
startNewTransaction = true;
}
if (transactionInfo != null)
{
TransactionContext.SetTransactionInfo(transactionInfo);
}
object resultObject;
try
{
var request = (InvokeMethodRequest)message.BodyObject;
if (request.Arguments != null)
{
CancellationSourcesExtension.RegisterCancellationTokens(target, request);
}
if (!this.invokers.TryGet(message.InterfaceType, out var invoker))
{
throw new KeyNotFoundException($"Could not find an invoker for interface {message.InterfaceType}");
}
messagingTrace.OnInvokeMessage(message);
var requestInvoker = new GrainMethodInvoker(target, request, invoker, GrainCallFilters, interfaceToImplementationMapping);
await requestInvoker.Invoke();
resultObject = requestInvoker.Result;
}
catch (Exception exc1)
{
if (message.Direction == Message.Directions.OneWay)
{
this.invokeExceptionLogger.Warn(ErrorCode.GrainInvokeException,
"Exception during Grain method call of message: " + message + ": " + LogFormatter.PrintException(exc1), exc1);
}
else if (invokeExceptionLogger.IsEnabled(LogLevel.Debug))
{
this.invokeExceptionLogger.Debug(ErrorCode.GrainInvokeException,
"Exception during Grain method call of message: " + message + ": " + LogFormatter.PrintException(exc1), exc1);
}
if (transactionInfo != null)
{
transactionInfo.ReconcilePending();
// Record reason for abort, if not already set.
transactionInfo.RecordException(exc1, serializationManager);
if (startNewTransaction)
{
exc1 = transactionInfo.MustAbort(serializationManager);
await this.transactionAgent.Abort(transactionInfo);
TransactionContext.Clear();
}
}
// If a grain allowed an inconsistent state exception to escape and the exception originated from
// this activation, then deactivate it.
var ise = exc1 as InconsistentStateException;
if (ise != null && ise.IsSourceActivation)
{
// Mark the exception so that it doesn't deactivate any other activations.
ise.IsSourceActivation = false;
this.invokeExceptionLogger.Info($"Deactivating {target} due to inconsistent state.");
this.DeactivateOnIdle(target.ActivationId);
}
if (message.Direction != Message.Directions.OneWay)
{
SafeSendExceptionResponse(message, exc1);
}
return;
}
OrleansTransactionException transactionException = null;
if (transactionInfo != null)
{
try
{
transactionInfo.ReconcilePending();
transactionException = transactionInfo.MustAbort(serializationManager);
// This request started the transaction, so we try to commit before returning,
// or if it must abort, tell participants that it aborted
if (startNewTransaction)
{
try
{
if (transactionException is null)
{
var(status, exception) = await this.transactionAgent.Resolve(transactionInfo);
if (status != TransactionalStatus.Ok)
{
transactionException = status.ConvertToUserException(transactionInfo.Id, exception);
}
}
else
{
await this.transactionAgent.Abort(transactionInfo);
}
}
finally
{
TransactionContext.Clear();
}
}
}
catch (Exception e)
{
// we should never hit this, but if we do, the following message will help us diagnose
this.logger.LogError(e, "Error in transaction post-grain-method-invocation code");
throw;
}
}
if (message.Direction != Message.Directions.OneWay)
{
if (transactionException != null)
{
SafeSendExceptionResponse(message, transactionException);
}
else
{
SafeSendResponse(message, resultObject);
}
}
return;
}
catch (Exception exc2)
{
this.logger.Warn(ErrorCode.Runtime_Error_100329, "Exception during Invoke of message: " + message, exc2);
TransactionContext.Clear();
if (message.Direction != Message.Directions.OneWay)
{
SafeSendExceptionResponse(message, exc2);
}
}
finally
{
RequestContext.Clear();
}
}
public async Task Invoke(IAddressable target, IInvokable invokable, Message message)
{
try
{
// Don't process messages that have already timed out
if (message.IsExpired)
{
this.messagingTrace.OnDropExpiredMessage(message, MessagingStatisticsGroup.Phase.Invoke);
return;
}
RequestContextExtensions.Import(message.RequestContextData);
if (schedulingOptions.PerformDeadlockDetection && !message.TargetGrain.IsSystemTarget())
{
UpdateDeadlockInfoInRequestContext(new RequestInvocationHistory(message.TargetGrain, message.TargetActivation));
// RequestContext is automatically saved in the msg upon send and propagated to the next hop
// in RuntimeClient.CreateMessage -> RequestContextExtensions.ExportToMessage(message);
}
bool startNewTransaction = false;
ITransactionInfo transactionInfo = message.TransactionInfo;
if (message.IsTransactionRequired && transactionInfo == null)
{
// TODO: this should be a configurable parameter
var transactionTimeout = Debugger.IsAttached ? TimeSpan.FromMinutes(30) : TimeSpan.FromSeconds(10);
// Start a new transaction
transactionInfo = await this.transactionAgent.StartTransaction(message.IsReadOnly, transactionTimeout);
startNewTransaction = true;
}
if (transactionInfo != null)
{
TransactionContext.SetTransactionInfo(transactionInfo);
}
object resultObject;
try
{
var request = (InvokeMethodRequest)message.BodyObject;
if (request.Arguments != null)
{
CancellationSourcesExtension.RegisterCancellationTokens(target, request, this.loggerFactory, logger, this, this.cancellationTokenRuntime);
}
var invoker = invokable.GetInvoker(typeManager, request.InterfaceId, message.GenericGrainType);
if (invoker is IGrainExtensionMethodInvoker &&
!(target is IGrainExtension) &&
!TryInstallExtension(request.InterfaceId, invokable, message.GenericGrainType, ref invoker))
{
// We are trying the invoke a grain extension method on a grain
// -- most likely reason is that the dynamic extension is not installed for this grain
// So throw a specific exception here rather than a general InvalidCastException
var error = String.Format(
"Extension not installed on grain {0} attempting to invoke type {1} from invokable {2}",
target.GetType().FullName, invoker.GetType().FullName, invokable.GetType().FullName);
var exc = new GrainExtensionNotInstalledException(error);
string extraDebugInfo = null;
#if DEBUG
extraDebugInfo = Utils.GetStackTrace();
#endif
this.logger.Warn(ErrorCode.Stream_ExtensionNotInstalled,
string.Format("{0} for message {1} {2}", error, message, extraDebugInfo), exc);
throw exc;
}
messagingTrace.OnInvokeMessage(message);
var requestInvoker = new GrainMethodInvoker(target, request, invoker, GrainCallFilters, interfaceToImplementationMapping);
await requestInvoker.Invoke();
resultObject = requestInvoker.Result;
}
catch (Exception exc1)
{
if (message.Direction == Message.Directions.OneWay)
{
this.invokeExceptionLogger.Warn(ErrorCode.GrainInvokeException,
"Exception during Grain method call of message: " + message + ": " + LogFormatter.PrintException(exc1), exc1);
}
else if (invokeExceptionLogger.IsEnabled(LogLevel.Debug))
{
this.invokeExceptionLogger.Debug(ErrorCode.GrainInvokeException,
"Exception during Grain method call of message: " + message + ": " + LogFormatter.PrintException(exc1), exc1);
}
if (transactionInfo != null)
{
transactionInfo.ReconcilePending();
// Record reason for abort, if not alread set
transactionInfo.RecordException(exc1, serializationManager);
if (startNewTransaction)
{
exc1 = transactionInfo.MustAbort(serializationManager);
await this.transactionAgent.Abort(transactionInfo);
TransactionContext.Clear();
}
}
// If a grain allowed an inconsistent state exception to escape and the exception originated from
// this activation, then deactivate it.
var ise = exc1 as InconsistentStateException;
if (ise != null && ise.IsSourceActivation)
{
// Mark the exception so that it doesn't deactivate any other activations.
ise.IsSourceActivation = false;
var activation = (target as Grain)?.Data;
if (activation != null)
{
this.invokeExceptionLogger.Info($"Deactivating {activation} due to inconsistent state.");
this.DeactivateOnIdle(activation.ActivationId);
}
}
if (message.Direction != Message.Directions.OneWay)
{
SafeSendExceptionResponse(message, exc1);
}
return;
}
OrleansTransactionException transactionException = null;
if (transactionInfo != null)
{
try
{
transactionInfo.ReconcilePending();
transactionException = transactionInfo.MustAbort(serializationManager);
// This request started the transaction, so we try to commit before returning,
// or if it must abort, tell participants that it aborted
if (startNewTransaction)
{
try
{
if (transactionException == null)
{
var status = await this.transactionAgent.Resolve(transactionInfo);
if (status != TransactionalStatus.Ok)
{
transactionException = status.ConvertToUserException(transactionInfo.Id);
}
}
else
{
await this.transactionAgent.Abort(transactionInfo);
}
}
finally
{
TransactionContext.Clear();
}
}
}
catch (Exception e)
{
// we should never hit this, but if we do, the following message will help us diagnose
this.logger.LogError(e, "Error in transaction post-grain-method-invocation code");
throw;
}
}
if (message.Direction != Message.Directions.OneWay)
{
if (transactionException != null)
{
SafeSendExceptionResponse(message, transactionException);
}
else
{
SafeSendResponse(message, resultObject);
}
}
return;
}
catch (Exception exc2)
{
this.logger.Warn(ErrorCode.Runtime_Error_100329, "Exception during Invoke of message: " + message, exc2);
TransactionContext.Clear();
if (message.Direction != Message.Directions.OneWay)
{
SafeSendExceptionResponse(message, exc2);
}
}
finally
{
RequestContext.Clear();
}
}
internal async Task Invoke(IAddressable target, IInvokable invokable, Message message)
{
try
{
// Don't process messages that have already timed out
if (message.IsExpired)
{
message.DropExpiredMessage(MessagingStatisticsGroup.Phase.Invoke);
return;
}
RequestContext.Import(message.RequestContextData);
if (Config.Globals.PerformDeadlockDetection && !message.TargetGrain.IsSystemTarget)
{
UpdateDeadlockInfoInRequestContext(new RequestInvocationHistory(message));
// RequestContext is automatically saved in the msg upon send and propagated to the next hop
// in RuntimeClient.CreateMessage -> RequestContext.ExportToMessage(message);
}
object resultObject;
try
{
var request = (InvokeMethodRequest)message.BodyObject;
if (request.Arguments != null)
{
CancellationSourcesExtension.RegisterCancellationTokens(target, request, logger);
}
var invoker = invokable.GetInvoker(request.InterfaceId, message.GenericGrainType);
if (invoker is IGrainExtensionMethodInvoker &&
!(target is IGrainExtension))
{
// We are trying the invoke a grain extension method on a grain
// -- most likely reason is that the dynamic extension is not installed for this grain
// So throw a specific exception here rather than a general InvalidCastException
var error = String.Format(
"Extension not installed on grain {0} attempting to invoke type {1} from invokable {2}",
target.GetType().FullName, invoker.GetType().FullName, invokable.GetType().FullName);
var exc = new GrainExtensionNotInstalledException(error);
string extraDebugInfo = null;
#if DEBUG
extraDebugInfo = new StackTrace().ToString();
#endif
logger.Warn(ErrorCode.Stream_ExtensionNotInstalled,
string.Format("{0} for message {1} {2}", error, message, extraDebugInfo), exc);
throw exc;
}
// If the target has a grain-level interceptor or there is a silo-level interceptor, intercept the call.
var shouldCallSiloWideInterceptor = SiloProviderRuntime.Instance.GetInvokeInterceptor() != null && target is IGrain;
var intercepted = target as IGrainInvokeInterceptor;
if (intercepted != null || shouldCallSiloWideInterceptor)
{
// Fetch the method info for the intercepted call.
var implementationInvoker =
invocationMethodInfoMap.GetInterceptedMethodInvoker(target.GetType(), request.InterfaceId,
invoker);
var methodInfo = implementationInvoker.GetMethodInfo(request.MethodId);
if (shouldCallSiloWideInterceptor)
{
// There is a silo-level interceptor and possibly a grain-level interceptor.
var runtime = SiloProviderRuntime.Instance;
resultObject =
await runtime.CallInvokeInterceptor(methodInfo, request, target, implementationInvoker);
}
else
{
// The grain has an interceptor, but there is no silo-wide interceptor.
resultObject = await intercepted.Invoke(methodInfo, request, invoker);
}
}
else
{
// The call is not intercepted.
// TODO: this await here is just grabbing the first exception of the AggregateException. As a framework we shouldn't do that.
resultObject = await invoker.Invoke(target, request);
}
}
catch (Exception exc1)
{
if (invokeExceptionLogger.IsVerbose || message.Direction == Message.Directions.OneWay)
{
invokeExceptionLogger.Warn(ErrorCode.GrainInvokeException,
"Exception during Grain method call of message: " + message, exc1);
}
if (message.Direction != Message.Directions.OneWay)
{
SafeSendExceptionResponse(message, exc1);
}
return;
}
if (message.Direction == Message.Directions.OneWay)
{
return;
}
SafeSendResponse(message, resultObject);
}
catch (Exception exc2)
{
logger.Warn(ErrorCode.Runtime_Error_100329, "Exception during Invoke of message: " + message, exc2);
if (message.Direction != Message.Directions.OneWay)
{
SafeSendExceptionResponse(message, exc2);
}
}
}
/// <summary>
/// Handles the an InvokeMethodRequest message on given target.
/// </summary>
/// <remarks>
/// Options when we receive a InvokeMethodRequest
/// ----------------------------------------------
/// 1) Intercepted RPC
/// 2) Request to start a reactive computation for this method invocation
/// 3) KeepAlive request of the reactive computation for this method invocation
/// 4) Normal Application RPC
/// 5) System RPC
/// </remarks>
/// <returns></returns>
internal async Task Invoke(IAddressable target, IInvokable invokable, Message message)
{
try
{
// Don't process messages that have already timed out
if (message.IsExpired)
{
message.DropExpiredMessage(MessagingStatisticsGroup.Phase.Invoke);
return;
}
RequestContext.Import(message.RequestContextData);
if (Config.Globals.PerformDeadlockDetection && !message.TargetGrain.IsSystemTarget)
{
UpdateDeadlockInfoInRequestContext(new RequestInvocationHistory(message));
// RequestContext is automatically saved in the msg upon send and propagated to the next hop
// in RuntimeClient.CreateMessage -> RequestContext.ExportToMessage(message);
}
object resultObject;
try
{
var request = (InvokeMethodRequest)message.BodyObject;
if (request.Arguments != null)
{
CancellationSourcesExtension.RegisterCancellationTokens(target, request, logger);
}
// Get the invoker for this invocation
IGrainMethodInvoker invoker = GetGrainMethodInvoker(target, invokable, message, request);
// Check whether this call should be intercepted
var siloWideInterceptor = SiloProviderRuntime.Instance.GetInvokeInterceptor();
var grainWithInterceptor = target as IGrainInvokeInterceptor;
// Silo-wide interceptors do not operate on system targets.
var hasSiloWideInterceptor = siloWideInterceptor != null && target is IGrain;
var hasGrainLevelInterceptor = grainWithInterceptor != null;
// Normal Application Call = an application call made from grain to grain or from client to grain.
// Some system-related calls such as the IReminderTable are encoded as Application messages, therefore we needed this check.
var NormalApplicationCall = message.Category == Message.Categories.Application && message.TargetGrain.IsGrain && (message.SendingGrain.IsGrain || message.SendingGrain.IsClient);
// 1) If the target has a grain-level interceptor or there is a silo-level interceptor, intercept the
// call.
if (hasGrainLevelInterceptor || hasSiloWideInterceptor)
{
resultObject = await InvokeWithInterceptors(target, request, invoker, hasSiloWideInterceptor, siloWideInterceptor, hasGrainLevelInterceptor, grainWithInterceptor);
}
else if (NormalApplicationCall)
{
// 2) Request to start a reactive computation for this method invocation
if (message.IsRcExecute())
{
HandleReactiveComputationExecute(target, request, message, invoker);
return; // Does not expect a return (OneWay Message)
}
// 3) Refresh Reactive Computation Subscription
else if (message.IsRcKeepAlive())
{
HandleReactiveComputationExecute(target, request, message, invoker, true);
return; // Does not expect a return (OneWay Message)
}
// 4) Normal application RPC call
else
{
// Invoke the method
resultObject = await invoker.Invoke(target, request);
// Check if there are any active reactive computations in this grain that require recomputation after this call
InsideRcManager.RecomputeSummaries();
}
}
// 5) System RPC call
else
{
resultObject = await invoker.Invoke(target, request);
}
}
catch (Exception exc1)
{
if (invokeExceptionLogger.IsVerbose || message.Direction == Message.Directions.OneWay)
{
invokeExceptionLogger.Warn(ErrorCode.GrainInvokeException,
"Exception during Grain method call of message: " + message, exc1);
}
if (message.Direction != Message.Directions.OneWay)
{
SafeSendExceptionResponse(message, exc1);
}
return;
}
if (message.Direction == Message.Directions.OneWay)
{
return;
}
SafeSendResponse(message, resultObject);
}
catch (Exception exc2)
{
logger.Warn(ErrorCode.Runtime_Error_100329, "Exception during Invoke of message: " + message, exc2);
if (message.Direction != Message.Directions.OneWay)
{
SafeSendExceptionResponse(message, exc2);
}
}
}
