/// <summary>
/// Configures a scoped host that serves gRPC endpoints of the specified <see cref="EndpointVisibility"/> using Kestrel.
/// </summary>
/// <param name="builder">The host builder to add a scoped host to.</param>
/// <param name="visibility">The endpoint visibility to serve endpoints for.</param>
/// <returns>The builder for continuation.</returns>
public static IHostBuilder AddGrpcHost(this IHostBuilder builder, EndpointVisibility visibility)
=> builder
.AddGrpcEndpointHealthCheck(visibility)
.AddScopedHost(_ => _.ConfigureWebHost(grpcHost =>
{
grpcHost.UseKestrel();
grpcHost.ConfigureServices(services =>
{
services.AddKestrelConfigurationFor(visibility);
services.AddGrpc();
services.AddGrpcReflection();
});
grpcHost.Configure(app =>
{
app.UseRouting();
app.UseEndpoints(endpoints =>
{
endpoints.MapDiscoveredGrpcServicesOf(visibility);
endpoints.MapGrpcReflectionService();
endpoints.MapGrpcService <HealthService>();
});
});
}));
/// <inheritdoc/>
public void Start(EndpointVisibility type, EndpointConfiguration configuration, IEnumerable <Service> services)
{
try
{
var keepAliveTime = new grpc.ChannelOption("grpc.keepalive_time", 1000);
var keepAliveTimeout = new grpc.ChannelOption("grpc.keepalive_timeout_ms", 500);
var keepAliveWithoutCalls = new grpc.ChannelOption("grpc.keepalive_permit_without_calls", 1);
_server = new grpc::Server(new[] {
keepAliveTime,
keepAliveTimeout,
keepAliveWithoutCalls
})
{
Ports =
{
new grpc.ServerPort("0.0.0.0", configuration.Port, grpc::SslServerCredentials.Insecure)
}
};
_server
.Ports
.ForEach(_ =>
_logger.Information($"Starting {type} host on {_.Host}" + (_.Port > 0 ? $" for port {_.Port}" : string.Empty)));
services.ForEach(_ => _server.Services.Add(_.ServerDefinition));
_server.Start();
}
catch (Exception ex)
{
_logger.Error(ex, $"Couldn't start {type} host");
}
}
public static void AddKestrelConfigurationFor(this IServiceCollection services, EndpointVisibility visibility)
{
services.AddSingleton <IConfigureOptions <KestrelServerOptions> >(_ =>
new KestrelConfiguration(
_.GetRequiredService <IOptions <EndpointsConfiguration> >(),
visibility));
}
/// <inheritdoc />
public void MapServicesForVisibility(IEndpointRouteBuilder endpoints, EndpointVisibility visibility)
{
foreach (var service in _services.Where(_ => _.Visibility == visibility))
{
_logger.MappingDiscoveredGrpcService(service.ImplementationType, visibility);
MapDynamicGrpcService(endpoints, service.ImplementationType);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Client"/> class.
/// </summary>
/// <param name="visibility">The <see cref="EndpointVisibility"/> of the hosted <see cref="Endpoint"/>.</param>
/// <param name="type"><see cref="Type"/> of <see cref="ClientBase">client</see>.</param>
/// <param name="serviceDescriptor"><see cref="ServiceDescriptor"/> for the service the <see cref="Client"/> is for.</param>
public Client(EndpointVisibility visibility, Type type, ServiceDescriptor serviceDescriptor)
{
ThrowIfTypeDoesNotImplementClientBase(type);
Visibility = visibility;
Type = type;
ServiceDescriptor = serviceDescriptor;
}
IEndpoint GetEndpointFor(EndpointVisibility type)
{
if (_endpoints.ContainsKey(type))
{
return(_endpoints[type]);
}
var endpoint = _container.Get <IEndpoint>();
_endpoints[type] = endpoint;
return(endpoint);
}
internal static partial void PreparingEndpoint(ILogger logger, EndpointVisibility visibilityType, int port);
public KestrelConfiguration(IOptions <EndpointsConfiguration> configuration, EndpointVisibility visibility)
{
_configuration = configuration.Value.GetConfigurationFor(visibility);
}
/// <summary>
/// Initializes a new instance of <see cref="EndpointInfo"/>
/// </summary>
/// <param name="visibility"><see cref="EndpointVisibility">Type</see> of endpoint</param>
/// <param name="configuration"><see cref="EndpointConfiguration">Configuration</see> for the endoint</param>
public EndpointInfo(EndpointVisibility visibility, EndpointConfiguration configuration)
{
Visibility = visibility;
Configuration = configuration;
}
public void TestNodeCollapse(EndpointVisibility visibility, bool nonCollapsedNonConnectedVisible, bool nonCollapsedConnectedVisible, bool collapsedNonConnectedVisible, bool collapsedConnectedVisible)
{
NodeOutputViewModel nodeAOutput = new NodeOutputViewModel();
NodeViewModel nodeA = new NodeViewModel
{
Outputs = { nodeAOutput }
};
NodeInputViewModel nodeBInput = new NodeInputViewModel {
Visibility = visibility
};
NodeInputViewModel nodeBInput2 = new NodeInputViewModel {
Visibility = visibility
};
NodeOutputViewModel nodeBOutput = new NodeOutputViewModel {
Visibility = visibility
};
NodeOutputViewModel nodeBOutput2 = new NodeOutputViewModel {
Visibility = visibility
};
NodeViewModel nodeB = new NodeViewModel
{
Inputs = { nodeBInput, nodeBInput2 },
Outputs = { nodeBOutput, nodeBOutput2 }
};
NodeInputViewModel nodeCInput = new NodeInputViewModel();
NodeViewModel nodeC = new NodeViewModel
{
Inputs = { nodeCInput }
};
NetworkViewModel network = new NetworkViewModel
{
Nodes = { nodeA, nodeB, nodeC }
};
network.Connections.Add(network.ConnectionFactory(nodeBInput, nodeAOutput));
network.Connections.Add(network.ConnectionFactory(nodeCInput, nodeBOutput));
var expectedInputSeq = Enumerable.Empty <Endpoint>();
var expectedOutputSeq = Enumerable.Empty <Endpoint>();
if (nonCollapsedConnectedVisible)
{
expectedInputSeq = expectedInputSeq.Concat(new[] { nodeBInput });
expectedOutputSeq = expectedOutputSeq.Concat(new[] { nodeBOutput });
}
if (nonCollapsedNonConnectedVisible)
{
expectedInputSeq = expectedInputSeq.Concat(new[] { nodeBInput2 });
expectedOutputSeq = expectedOutputSeq.Concat(new[] { nodeBOutput2 });
}
Assert.IsTrue(nodeB.VisibleInputs.SequenceEqual(expectedInputSeq));
Assert.IsTrue(nodeB.VisibleOutputs.SequenceEqual(expectedOutputSeq));
nodeB.IsCollapsed = true;
expectedInputSeq = Enumerable.Empty <Endpoint>();
expectedOutputSeq = Enumerable.Empty <Endpoint>();
if (collapsedConnectedVisible)
{
expectedInputSeq = expectedInputSeq.Concat(new[] { nodeBInput });
expectedOutputSeq = expectedOutputSeq.Concat(new[] { nodeBOutput });
}
if (collapsedNonConnectedVisible)
{
expectedInputSeq = expectedInputSeq.Concat(new[] { nodeBInput2 });
expectedOutputSeq = expectedOutputSeq.Concat(new[] { nodeBOutput2 });
}
Assert.IsTrue(nodeB.VisibleInputs.SequenceEqual(expectedInputSeq));
Assert.IsTrue(nodeB.VisibleOutputs.SequenceEqual(expectedOutputSeq));
}
/// <summary>
/// Initializes a new instance of the <see cref="ServiceDefinition"/> class.
/// </summary>
/// <param name="visibility">The visibility of the implemented service.</param>
/// <param name="implementationType">The type that implements the service.</param>
public ServiceDefinition(EndpointVisibility visibility, Type implementationType)
{
Visibility = visibility;
ImplementationType = implementationType;
}
internal static void CouldNotStartHost(this ILogger logger, Exception ex, EndpointVisibility endpointVisibility) => _couldNotStartHost(logger, endpointVisibility.ToString(), ex);
/// <summary>
/// Initializes a new instance of the <see cref="ServiceAttribute"/> class.
/// </summary>
/// <param name="visibility">The visibility of the service with this attribute defined.</param>
protected ServiceAttribute(EndpointVisibility visibility)
{
Visibility = visibility;
}
/// <summary>
/// Initializes a new instance of the <see cref="UnknownEndpointVisibility"/> class.
/// </summary>
/// <param name="visibility">The visibility that is unknown.</param>
public UnknownEndpointVisibility(EndpointVisibility visibility)
: base($"The {nameof(EndpointVisibility)} {visibility} is unknown")
{
}
internal static partial void AddingHealthCheckFor(this ILogger logger, EndpointVisibility visibility);
/// <summary> /// Maps discovered gRPC service implementations for the specified <see cref="EndpointVisibility"/>. /// </summary> /// <param name="endpoints">The endpoint route builder to map services to.</param> /// <param name="visibility">The endpoint visibility to map services for.</param> public static void MapDiscoveredGrpcServicesOf(this IEndpointRouteBuilder endpoints, EndpointVisibility visibility) => endpoints .ServiceProvider.GetRequiredService <ICanConfigureGrpcServicesForEndpoint>() .MapServicesForVisibility(endpoints, visibility);
internal static partial void EndpointDisabled(ILogger logger, EndpointVisibility visibilityType);
internal static partial void MappingDiscoveredGrpcService(this ILogger logger, Type implementation, EndpointVisibility visibility);
internal static void StartingHost(this ILogger logger, EndpointVisibility visibility, string host, int port) => _startingHost(logger, visibility.ToString(), host, port, null);
/// <summary>
/// Initializes a new instance of the <see cref="HealthCheckConfiguration"/> class.
/// </summary>
/// <param name="visibility">The endpoint visibility to add a health check for.</param>
/// <param name="getConfiguration">The factory to use to get the endpoint configuration.</param>
/// <param name="logger">The logger to use for logging.</param>
public HealthCheckConfiguration(EndpointVisibility visibility, Func<IOptions<EndpointsConfiguration>> getConfiguration, ILogger logger)
{
_visibility = visibility;
_getConfiguration = getConfiguration;
_logger = logger;
}
/// <summary>
/// Configures a <see cref="HealthCheckRegistration"/> that performs a gRPC <see cref="HealthCheckRequest"/> on the specified <see cref="EndpointVisibility"/>.
/// </summary>
/// <param name="builder">The host builder to configure.</param>
/// <param name="visibility">The endpoint visibility to add a health check for.</param>
/// <returns>The builder for continuation.</returns>
public static IHostBuilder AddGrpcEndpointHealthCheck(this IHostBuilder builder, EndpointVisibility visibility)
=> builder.ConfigureServices(services =>
services.AddTransient <IConfigureOptions <HealthCheckServiceOptions> >(_ => new HealthCheckConfiguration(
visibility,
_.GetRequiredService <Func <IOptions <EndpointsConfiguration> > >(),
_.GetRequiredService <ILogger <HealthCheckConfiguration> >())));
/// <summary>
/// Initializes a new instance of the <see cref="EndpointHealthCheck"/> class.
/// </summary>
/// <param name="visibility">The endpoint visibility to attempt to connect to.</param>
/// <param name="getConfiguration">The factory to use to resolve the endpoint configuration.</param>
public EndpointHealthCheck(EndpointVisibility visibility, Func <IOptions <EndpointsConfiguration> > getConfiguration)
{
_visibility = visibility;
_getConfiguration = getConfiguration;
}