public async Task HandleInvocationRequestAsync(IInboundMessageEvent<RmiRequestDto> e) {
Trace.Assert(e.Message.ReceiverId == identity.Id);
if (logger.IsDebugEnabled) {
logger.Debug($"Received RMI {e.Body.InvocationId.ToString("n").Substring(0, 6)} Request on method {e.Body.MethodName} for service {e.Body.ServiceId.ToString("n").Substring(0, 6)}");
}
var request = e.Body;
object service;
if (!services.TryGetValue(request.ServiceId, out service)) {
if (logger.IsDebugEnabled) {
logger.Debug($"Unable to handle RMI {e.Body.InvocationId.ToString("n").Substring(0, 6)} Request on method {e.Body.MethodName} for service {e.Body.ServiceId.ToString("n").Substring(0, 6)} - service not found.");
}
await RespondError(e, new ServiceUnavailableException(request)).ConfigureAwait(false);
return;
}
var typeInfo = service.GetType().GetTypeInfo();
var method = typeInfo.GetMethod(request.MethodName);
if (method.IsGenericMethodDefinition) {
method = method.MakeGenericMethod(request.MethodGenericArguments);
}
object result;
var args = request.MethodArguments;
try {
result = await TaskUtilities.UnboxValueIfTaskAsync(method.Invoke(service, args)).ConfigureAwait(false);
} catch (Exception ex) {
await RespondError(e, ex).ConfigureAwait(false);
return;
}
var outParameters = method.GetParameters().Where(p => p.IsOut);
await RespondSuccess(e, outParameters.Select(p => args[p.Position]).ToArray(), result).ConfigureAwait(false);
}
public Task HandleInvocationResponse(IInboundMessageEvent<RmiResponseDto> x) {
Trace.Assert(x.Message.ReceiverId == localIdentity.Id);
var response = x.Body;
logger.Info("Handling invocation response for {0}.", response.InvocationId);
AsyncBox<RmiResponseDto> responseBox;
if (!responseBoxes.TryRemove(response.InvocationId, out responseBox)) {
logger.Error("Could not find response box for invocation id {0}.", response.InvocationId);
throw new InvalidStateException();
}
responseBox.SetResult(response);
return Task.CompletedTask;
}
private Task RespondSuccess(IInboundMessageEvent<RmiRequestDto> e, object[] outParameters, object result) {
if (logger.IsDebugEnabled) {
logger.Debug($"Successfully handled RMI {e.Body.InvocationId.ToString("n").Substring(0, 6)} Request on method {e.Body.MethodName} for service {e.Body.ServiceId.ToString("n").Substring(0, 6)}. Sending return {result?.ToString() ?? "[null]"}.");
}
return messenger.SendReliableAsync(
new RmiResponseDto {
InvocationId = e.Body.InvocationId,
ReturnValue = result,
Outs = outParameters,
Exception = null,
},
e.Sender.Identity.Id);
}
private Task RespondSuccess(IInboundMessageEvent <RmiRequestDto> e, object[] outParameters, object result)
{
if (logger.IsDebugEnabled)
{
logger.Debug($"Successfully handled RMI {e.Body.InvocationId.ToString("n").Substring(0, 6)} Request on method {e.Body.MethodName} for service {e.Body.ServiceId.ToString("n").Substring(0, 6)}. Sending return {result?.ToString() ?? "[null]"}.");
}
return(messenger.SendReliableAsync(
new RmiResponseDto {
InvocationId = e.Body.InvocationId,
ReturnValue = result,
Outs = outParameters,
Exception = null,
},
e.Sender.Identity.Id));
}
private Task RespondError(IInboundMessageEvent <RmiRequestDto> e, Exception ex)
{
if (logger.IsDebugEnabled)
{
logger.Debug($"Threw when handling RMI {e.Body.InvocationId.ToString("n").Substring(0, 6)} Request on method {e.Body.MethodName} for service {e.Body.ServiceId.ToString("n").Substring(0, 6)}. Error: {ex}.");
}
return(messenger.SendReliableAsync(
new RmiResponseDto {
InvocationId = e.Body.InvocationId,
Outs = new object[0],
ReturnValue = null,
Exception = RemoteException.Create(ex, e.Body)
},
e.Sender.Identity.Id));
}
public Task HandleInvocationResponse(IInboundMessageEvent <RmiResponseDto> x)
{
Trace.Assert(x.Message.ReceiverId == localIdentity.Id);
var response = x.Body;
logger.Info("Handling invocation response for {0}.", response.InvocationId);
AsyncBox <RmiResponseDto> responseBox;
if (!responseBoxes.TryRemove(response.InvocationId, out responseBox))
{
logger.Error("Could not find response box for invocation id {0}.", response.InvocationId);
throw new InvalidStateException();
}
responseBox.SetResult(response);
return(Task.CompletedTask);
}
public async Task HandleInvocationRequestAsync(IInboundMessageEvent <RmiRequestDto> e)
{
Trace.Assert(e.Message.ReceiverId == identity.Id);
if (logger.IsDebugEnabled)
{
logger.Debug($"Received RMI {e.Body.InvocationId.ToString("n").Substring(0, 6)} Request on method {e.Body.MethodName} for service {e.Body.ServiceId.ToString("n").Substring(0, 6)}");
}
var request = e.Body;
object service;
if (!services.TryGetValue(request.ServiceId, out service))
{
if (logger.IsDebugEnabled)
{
logger.Debug($"Unable to handle RMI {e.Body.InvocationId.ToString("n").Substring(0, 6)} Request on method {e.Body.MethodName} for service {e.Body.ServiceId.ToString("n").Substring(0, 6)} - service not found.");
}
await RespondError(e, new ServiceUnavailableException(request)).ConfigureAwait(false);
return;
}
var typeInfo = service.GetType().GetTypeInfo();
var method = typeInfo.GetMethod(request.MethodName);
if (method.IsGenericMethodDefinition)
{
method = method.MakeGenericMethod(request.MethodGenericArguments);
}
object result;
var args = request.MethodArguments;
try {
result = await TaskUtilities.UnboxValueIfTaskAsync(method.Invoke(service, args)).ConfigureAwait(false);
} catch (Exception ex) {
await RespondError(e, ex).ConfigureAwait(false);
return;
}
var outParameters = method.GetParameters().Where(p => p.IsOut);
await RespondSuccess(e, outParameters.Select(p => args[p.Position]).ToArray(), result).ConfigureAwait(false);
}
private Task RespondError(IInboundMessageEvent<RmiRequestDto> e, Exception ex) {
if (logger.IsDebugEnabled) {
logger.Debug($"Threw when handling RMI {e.Body.InvocationId.ToString("n").Substring(0, 6)} Request on method {e.Body.MethodName} for service {e.Body.ServiceId.ToString("n").Substring(0, 6)}. Error: {ex}.");
}
return messenger.SendReliableAsync(
new RmiResponseDto {
InvocationId = e.Body.InvocationId,
Outs = new object[0],
ReturnValue = null,
Exception = RemoteException.Create(ex, e.Body)
},
e.Sender.Identity.Id);
}
