public void TestFromServiceDescription_ServiceIsNull()
{
var runtime = RpcServerRuntime.Create(RpcServerConfiguration.Default, new SerializationContext());
ServiceDescription service = null;
OperationDescription.FromServiceDescription(runtime, service).ToArray();
}
public void TestFromServiceDescription_Overloaded()
{
var runtime = RpcServerRuntime.Create(RpcServerConfiguration.Default, new SerializationContext());
ServiceDescription service = ServiceDescription.FromServiceType(typeof(Overloaded));
OperationDescription.FromServiceDescription(runtime, service).ToArray();
}
/// <summary>
/// Gets service invoker.
/// If the concrete type is already created, returns the cached instance.
/// Else creates new concrete type and its instance, then returns it.
/// </summary>
/// <param name="runtime">
/// The <see cref="RpcServerRuntime"/>.
/// </param>
/// <param name="serviceDescription">
/// <see cref="ServiceDescription"/> which holds the service spec.
/// </param>
/// <param name="targetOperation">
/// <see cref="MethodInfo"/> of the target operation.
/// </param>
/// <returns>
/// <see cref="AsyncServiceInvoker{T}"/> where T is return type of the target method.
/// </returns>
public IAsyncServiceInvoker GetServiceInvoker(RpcServerRuntime runtime, ServiceDescription serviceDescription, MethodInfo targetOperation)
{
Contract.Requires(runtime != null);
Contract.Requires(serviceDescription != null);
Contract.Requires(targetOperation != null);
bool isReadLockHeld = false;
try
{
try { }
finally
{
this._lock.EnterUpgradeableReadLock();
isReadLockHeld = true;
}
IAsyncServiceInvoker result;
if (this._cache.TryGetValue(targetOperation.MethodHandle, out result))
{
return(result);
}
IAsyncServiceInvoker newInvoker = CreateInvoker(runtime, serviceDescription, targetOperation);
bool isWriteLockHeld = false;
try
{
try { }
finally
{
this._lock.EnterWriteLock();
isWriteLockHeld = true;
}
if (!this._cache.TryGetValue(targetOperation.MethodHandle, out result))
{
this._cache[targetOperation.MethodHandle] = newInvoker;
result = newInvoker;
}
return(result);
}
finally
{
if (isWriteLockHeld)
{
this._lock.ExitWriteLock();
}
}
}
finally
{
if (isReadLockHeld)
{
this._lock.ExitUpgradeableReadLock();
}
}
}
public void TestFromServiceDescription_WithOutMethods_Empty()
{
var runtime = RpcServerRuntime.Create(RpcServerConfiguration.Default, new SerializationContext());
ServiceDescription service = ServiceDescription.FromServiceType(typeof(NoMember));
var result = OperationDescription.FromServiceDescription(runtime, service).ToArray();
Assert.That(result, Is.Not.Null.And.Empty);
}
private static OperationDescription FromServiceMethodCore(RpcServerRuntime runtime, ServiceDescription service, MethodInfo operation)
{
Contract.Requires(runtime != null);
Contract.Ensures(Contract.Result <OperationDescription>() != null);
var serviceInvoker = ServiceInvokerGenerator.Default.GetServiceInvoker(runtime, service, operation);
return(new OperationDescription(service, serviceInvoker.OperationId, serviceInvoker.InvokeAsync));
}
private void TestGetServiceInvokerCore <TArg1, TArg2, TResult>(
EventHandler <ServiceInvokedEventArgs <TResult> > invoked,
RpcServerConfiguration configuration,
TArg1 arg1,
TArg2 arg2,
Action <ServerResponseContext> assertion
)
{
using (var target = new ServiceInvokerGenerator(true))
using (var server = new RpcServer())
using (var transportManager = new NullServerTransportManager(server))
using (var transport = new NullServerTransport(transportManager))
{
var service = new Service <TArg1, TArg2, TResult>();
service.Invoked += invoked;
var serviceDescription = new ServiceDescription("Service", () => service);
var targetOperation = service.GetType().GetMethod("Invoke");
using (var requestContext = new ServerRequestContext())
{
requestContext.ArgumentsBufferPacker = Packer.Create(requestContext.ArgumentsBuffer, false);
requestContext.ArgumentsBufferPacker.PackArrayHeader(2);
requestContext.ArgumentsBufferPacker.Pack(arg1);
requestContext.ArgumentsBufferPacker.Pack(arg2);
requestContext.ArgumentsBuffer.Position = 0;
requestContext.MessageId = 123;
requestContext.ArgumentsUnpacker = Unpacker.Create(requestContext.ArgumentsBuffer, false);
var responseContext = new ServerResponseContext();
responseContext.SetTransport(transport);
try
{
var result = target.GetServiceInvoker(RpcServerRuntime.Create(configuration, this._serializationContext), serviceDescription, targetOperation);
result.InvokeAsync(requestContext, responseContext).Wait(TimeSpan.FromSeconds(1));
assertion(responseContext);
}
finally
{
if (this._isDumpEnabled)
{
try
{
target.Dump();
}
catch (Exception ex)
{
Console.Error.WriteLine("Failed to dump: {0}", ex);
}
}
}
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Dispatcher"/> class.
/// </summary>
/// <param name="server">The server which will hold this instance.</param>
/// <exception cref="ArgumentNullException">
/// <paramref name="server"/> is <c>null</c>.
/// </exception>
protected Dispatcher(RpcServer server)
{
if (server == null)
{
throw new ArgumentNullException("server");
}
Contract.EndContractBlock();
this._server = server;
this._runtime = new RpcServerRuntime(server.Configuration, server.SerializationContext);
}
private IAsyncServiceInvoker CreateInvoker(RpcServerRuntime runtime, ServiceDescription serviceDescription, MethodInfo targetOperation)
{
var parameters = targetOperation.GetParameters();
CheckParameters(parameters);
bool isWrapperNeeded = !typeof(Task).IsAssignableFrom(targetOperation.ReturnType);
var emitter = new ServiceInvokerEmitter(this._moduleBuilder, Interlocked.Increment(ref this._typeSequence), targetOperation.DeclaringType, targetOperation.ReturnType, this._isDebuggable);
EmitInvokeCore(emitter, targetOperation, parameters, typeof(Task), isWrapperNeeded);
return(emitter.CreateInstance(runtime, serviceDescription, targetOperation));
}
public void TestFromServiceDescription_WithMethods_CreateForPublicAnnotatedMembers()
{
var runtime = RpcServerRuntime.Create(RpcServerConfiguration.Default, new SerializationContext());
ServiceDescription service = ServiceDescription.FromServiceType(typeof(Service));
var result = OperationDescription.FromServiceDescription(runtime, service).OrderBy(item => item.Id).ToArray();
Assert.That(result, Is.Not.Null.And.Length.EqualTo(2));
Assert.That(result[0].Id, Is.StringStarting(Service.ExpectedOperationId1));
Assert.That(result[0].Operation, Is.Not.Null);
Assert.That(result[0].Service, Is.EqualTo(service));
Assert.That(result[1].Id, Is.StringStarting(Service.ExpectedOperationId2));
Assert.That(result[1].Operation, Is.Not.Null);
Assert.That(result[1].Service, Is.EqualTo(service));
}
/// <summary>
/// Creates the invoke type built now and returns its new instance.
/// </summary>
/// <param name="runtime">The <see cref="RpcServerRuntime"/> which provides runtime services.</param>
/// <param name="serviceDescription">The <see cref="ServiceDescription"/> which holds the service spec.</param>
/// <param name="targetOperation">The <see cref="MethodInfo"/> which holds the operation method spec.</param>
/// <returns>
/// Newly built <see cref="IAsyncServiceInvoker"/> instance.
/// This value will not be <c>null</c>.
/// </returns>
public IAsyncServiceInvoker CreateInstance(RpcServerRuntime runtime, ServiceDescription serviceDescription, MethodInfo targetOperation)
{
var runtimeParameter = Expression.Parameter(typeof(RpcServerRuntime));
var serviceDescriptionParameter = Expression.Parameter(typeof(ServiceDescription));
var targetOperationParameter = Expression.Parameter(typeof(MethodInfo));
return
(Expression.Lambda <Func <RpcServerRuntime, ServiceDescription, MethodInfo, IAsyncServiceInvoker> >(
Expression.New(
this.Create(),
runtimeParameter,
serviceDescriptionParameter,
targetOperationParameter
),
runtimeParameter,
serviceDescriptionParameter,
targetOperationParameter
).Compile()(runtime, serviceDescription, targetOperation));
}
/// <summary>
/// Creates the collection of the <see cref="OperationDescription"/> from the service description.
/// </summary>
/// <param name="runtime">The <see cref="RpcServerRuntime"/> which provides runtime services.</param>
/// <param name="service">The target service description.</param>
/// <returns>
/// Collection of the <see cref="OperationDescription"/> from the service description.
/// This value will not be <c>null</c> but might be empty.
/// </returns>
/// <exception cref="ArgumentNullException">
/// <paramref name="runtime"/> is <c>null</c>.
/// Or, <paramref name="service"/> is <c>null</c>.
/// </exception>
public static IEnumerable <OperationDescription> FromServiceDescription(RpcServerRuntime runtime, ServiceDescription service)
{
if (runtime == null)
{
throw new ArgumentNullException("runtime");
}
if (service == null)
{
throw new ArgumentNullException("service");
}
Contract.Ensures(Contract.Result <IEnumerable <OperationDescription> >() != null);
Contract.Ensures(Contract.ForAll(Contract.Result <IEnumerable <OperationDescription> >(), item => item != null));
var generated = new HashSet <string>();
return
(service.ServiceType.GetMethods()
.Where(method => method.IsDefined(typeof(MessagePackRpcMethodAttribute), true))
.Select(operation =>
{
if (!generated.Add(operation.Name))
{
throw new NotSupportedException(
String.Format(
CultureInfo.CurrentCulture,
"Method '{0}' is overloaded. Method overload is not supported on the MessagePack-RPC.",
operation.Name
)
);
}
return FromServiceMethodCore(runtime, service, operation);
}
).ToArray());
}
/// <summary>
/// Initializes a new instance of the <see cref="AsyncServiceInvoker<T>"/> class.
/// </summary>
/// <param name="runtime">The <see cref="RpcServerRuntime"/> which provides runtime services.</param>
/// <param name="serviceDescription">The service description which defines target operation.</param>
/// <param name="targetOperation">The target operation to be invoked.</param>
/// <exception cref="ArgumentNullException">
/// <paramref name="runtime"/> is <c>null</c>.
/// Or, <paramref name="serviceDescription"/> is <c>null</c>.
/// Or, <paramref name="targetOperation"/> is <c>null</c>.
/// </exception>
internal AsyncServiceInvoker(RpcServerRuntime runtime, ServiceDescription serviceDescription, MethodInfo targetOperation)
{
if (runtime == null)
{
throw new ArgumentNullException("runtime");
}
if (serviceDescription == null)
{
throw new ArgumentNullException("serviceDescription");
}
if (targetOperation == null)
{
throw new ArgumentNullException("targetOperation");
}
Contract.EndContractBlock();
this._runtime = runtime;
this._serviceDescription = serviceDescription;
this._targetOperation = targetOperation;
this._operationId = ServiceIdentifier.TruncateGenericsSuffix(targetOperation.Name);
}
private static OperationDescription FromServiceMethodCore( RpcServerRuntime runtime, ServiceDescription service, MethodInfo operation )
{
Contract.Requires( runtime != null );
Contract.Ensures( Contract.Result<OperationDescription>() != null );
var serviceInvoker = ServiceInvokerGenerator.Default.GetServiceInvoker( runtime, service, operation );
return new OperationDescription( service, serviceInvoker.OperationId, serviceInvoker.InvokeAsync );
}
/// <summary>
/// Creates the collection of the <see cref="OperationDescription"/> from the service description.
/// </summary>
/// <param name="runtime">The <see cref="RpcServerRuntime"/> which provides runtime services.</param>
/// <param name="service">The target service description.</param>
/// <returns>
/// Collection of the <see cref="OperationDescription"/> from the service description.
/// This value will not be <c>null</c> but might be empty.
/// </returns>
/// <exception cref="ArgumentNullException">
/// <paramref name="runtime"/> is <c>null</c>.
/// Or, <paramref name="service"/> is <c>null</c>.
/// </exception>
public static IEnumerable<OperationDescription> FromServiceDescription( RpcServerRuntime runtime, ServiceDescription service )
{
if ( runtime == null )
{
throw new ArgumentNullException( "runtime" );
}
if ( service == null )
{
throw new ArgumentNullException( "service" );
}
Contract.Ensures( Contract.Result<IEnumerable<OperationDescription>>() != null );
Contract.Ensures( Contract.ForAll( Contract.Result<IEnumerable<OperationDescription>>(), item => item != null ) );
var generated = new HashSet<string>();
return
service.ServiceType.GetMethods()
.Where( method => method.DeclaringType != objectType && !method.IsDefined( typeof(NoActionAttribute), true ) )
.Select( operation =>
{
if ( !generated.Add( operation.Name ) )
{
throw new NotSupportedException(
String.Format(
CultureInfo.CurrentCulture,
"Method '{0}' is overloaded. Method overload is not supported on the MessagePack-RPC.",
operation.Name
)
);
}
return FromServiceMethodCore( runtime, service, operation );
}
).ToArray();
}
private IAsyncServiceInvoker CreateInvoker( RpcServerRuntime runtime, ServiceDescription serviceDescription, MethodInfo targetOperation )
{
var parameters = targetOperation.GetParameters();
CheckParameters( parameters );
bool isWrapperNeeded = !typeof( Task ).IsAssignableFrom( targetOperation.ReturnType );
var emitter = new ServiceInvokerEmitter( this._moduleBuilder, Interlocked.Increment( ref this._typeSequence ), targetOperation.DeclaringType, targetOperation.ReturnType, this._isDebuggable );
EmitInvokeCore( emitter, targetOperation, parameters, typeof( Task ), isWrapperNeeded );
return emitter.CreateInstance( runtime, serviceDescription, targetOperation );
}
/// <summary>
/// Gets service invoker.
/// If the concrete type is already created, returns the cached instance.
/// Else creates new concrete type and its instance, then returns it.
/// </summary>
/// <param name="runtime">
/// The <see cref="RpcServerRuntime"/>.
/// </param>
/// <param name="serviceDescription">
/// <see cref="ServiceDescription"/> which holds the service spec.
/// </param>
/// <param name="targetOperation">
/// <see cref="MethodInfo"/> of the target operation.
/// </param>
/// <returns>
/// <see cref="AsyncServiceInvoker{T}"/> where T is return type of the target method.
/// </returns>
public IAsyncServiceInvoker GetServiceInvoker( RpcServerRuntime runtime, ServiceDescription serviceDescription, MethodInfo targetOperation )
{
Contract.Requires( runtime != null );
Contract.Requires( serviceDescription != null );
Contract.Requires( targetOperation != null );
bool isReadLockHeld = false;
try
{
try { }
finally
{
this._lock.EnterUpgradeableReadLock();
isReadLockHeld = true;
}
IAsyncServiceInvoker result;
if ( this._cache.TryGetValue( targetOperation.MethodHandle, out result ) )
{
return result;
}
IAsyncServiceInvoker newInvoker = CreateInvoker( runtime, serviceDescription, targetOperation );
bool isWriteLockHeld = false;
try
{
try { }
finally
{
this._lock.EnterWriteLock();
isWriteLockHeld = true;
}
if ( !this._cache.TryGetValue( targetOperation.MethodHandle, out result ) )
{
this._cache[ targetOperation.MethodHandle ] = newInvoker;
result = newInvoker;
}
return result;
}
finally
{
if ( isWriteLockHeld )
{
this._lock.ExitWriteLock();
}
}
}
finally
{
if ( isReadLockHeld )
{
this._lock.ExitUpgradeableReadLock();
}
}
}
public Target(Exception fatalError, RpcErrorMessage methodError)
: base(RpcServerRuntime.Create(RpcServerConfiguration.Default, new SerializationContext()), new ServiceDescription("Dummy", () => new object ()), typeof(object).GetMethod("ToString"))
{
this._fatalError = fatalError;
this._methodError = methodError;
}
/// <summary>
/// Initializes a new instance of the <see cref="AsyncServiceInvoker<T>"/> class.
/// </summary>
/// <param name="runtime">The <see cref="RpcServerRuntime"/> which provides runtime services.</param>
/// <param name="serviceDescription">The service description which defines target operation.</param>
/// <param name="targetOperation">The target operation to be invoked.</param>
/// <exception cref="ArgumentNullException">
/// <paramref name="runtime"/> is <c>null</c>.
/// Or, <paramref name="serviceDescription"/> is <c>null</c>.
/// Or, <paramref name="targetOperation"/> is <c>null</c>.
/// </exception>
internal AsyncServiceInvoker( RpcServerRuntime runtime, ServiceDescription serviceDescription, MethodInfo targetOperation )
{
if ( runtime == null )
{
throw new ArgumentNullException( "runtime" );
}
if ( serviceDescription == null )
{
throw new ArgumentNullException( "serviceDescription" );
}
if ( targetOperation == null )
{
throw new ArgumentNullException( "targetOperation" );
}
Contract.EndContractBlock();
this._runtime = runtime;
this._serviceDescription = serviceDescription;
this._targetOperation = targetOperation;
this._operationId = ServiceIdentifier.TruncateGenericsSuffix( targetOperation.Name );
}
/// <summary>
/// Initializes a new instance of the <see cref="AsyncServiceInvoker<T>"/> class.
/// </summary>
/// <param name="runtime">The <see cref="RpcServerRuntime"/> which provides runtime services.</param>
/// <param name="serviceDescription">The service description which defines target operation.</param>
/// <param name="targetOperation">The target operation to be invoked.</param>
/// <exception cref="ArgumentNullException">
/// <paramref name="runtime"/> is <c>null</c>.
/// Or, <paramref name="serviceDescription"/> is <c>null</c>.
/// Or, <paramref name="targetOperation"/> is <c>null</c>.
/// </exception>
protected AsyncServiceInvoker(RpcServerRuntime runtime, ServiceDescription serviceDescription, MethodInfo targetOperation)
: base(runtime, serviceDescription, targetOperation)
{
this._returnValueSerializer = typeof(T) == typeof(Missing) ? null : runtime.SerializationContext.GetSerializer <T>();
}
/// <summary>
/// Creates the invoke type built now and returns its new instance.
/// </summary>
/// <param name="runtime">The <see cref="RpcServerRuntime"/> which provides runtime services.</param>
/// <param name="serviceDescription">The <see cref="ServiceDescription"/> which holds the service spec.</param>
/// <param name="targetOperation">The <see cref="MethodInfo"/> which holds the operation method spec.</param>
/// <returns>
/// Newly built <see cref="IAsyncServiceInvoker"/> instance.
/// This value will not be <c>null</c>.
/// </returns>
public IAsyncServiceInvoker CreateInstance( RpcServerRuntime runtime, ServiceDescription serviceDescription, MethodInfo targetOperation )
{
var runtimeParameter = Expression.Parameter( typeof( RpcServerRuntime ) );
var serviceDescriptionParameter = Expression.Parameter( typeof( ServiceDescription ) );
var targetOperationParameter = Expression.Parameter( typeof( MethodInfo ) );
return
Expression.Lambda<Func<RpcServerRuntime, ServiceDescription, MethodInfo, IAsyncServiceInvoker>>(
Expression.New(
this.Create(),
runtimeParameter,
serviceDescriptionParameter,
targetOperationParameter
),
runtimeParameter,
serviceDescriptionParameter,
targetOperationParameter
).Compile()( runtime, serviceDescription, targetOperation );
}
