public static void AddCommandServer(ICommandServer commandServer)
{
lock (serviceLock)
{
var exposedTypes = Discovery.GetTypesFromAttribute(typeof(ServiceExposedAttribute));
foreach (var type in exposedTypes)
{
if (type.IsClass)
{
if (TypeAnalyzer.GetTypeDetail(type).Interfaces.Any(x => x == typeof(ICommand)))
{
var interfaceStack = ProviderLayers.GetProviderInterfaceStack();
var hasHandler = Discovery.HasImplementationType(TypeAnalyzer.GetGenericType(typeof(ICommandHandler <>), type), interfaceStack, interfaceStack.Length - 1);
if (hasHandler)
{
if (commandClients.Keys.Contains(type))
{
throw new InvalidOperationException($"Cannot create loopback. Command Client already registered for type {type.GetNiceName()}");
}
if (!commandServerTypes.Contains(type))
{
commandServerTypes.Add(type);
}
commandServer.RegisterCommandType(type);
}
}
}
}
commandServer.SetHandler(HandleRemoteCommandDispatchAsync, HandleRemoteCommandDispatchAwaitAsync);
commandServers.Add(commandServer);
commandServer.Open();
}
}
public static void StartServices(string serviceName, ServiceSettings serviceSettings, IServiceCreator serviceCreator, IRelayRegister relayRegister = null)
{
_ = Log.InfoAsync($"Starting {serviceName}");
lock (serviceLock)
{
var serverSetting = serviceSettings.Services.FirstOrDefault(x => x.Name == serviceName);
if (serverSetting == null)
{
throw new Exception($"Service {serviceName} not found in {CQRSSettings.SettingsFileName}");
}
var serverUrl = Config.GetSetting("urls");
if (String.IsNullOrWhiteSpace(serverUrl))
{
serverUrl = Config.GetSetting("ASPNETCORE_URLS");
}
if (String.IsNullOrWhiteSpace(serverUrl))
{
serverUrl = Config.GetSetting("DOTNET_URLS");
}
if (String.IsNullOrWhiteSpace(serverUrl))
{
serverUrl = serverSetting.ExternalUrl;
}
ICommandServer commandServer = null;
IEventServer eventServer = null;
IQueryServer queryServer = null;
var serverTypes = new HashSet <Type>();
foreach (var clientSetting in serviceSettings.Services)
{
if (clientSetting.Types == null || clientSetting.Types.Length == 0)
{
continue;
}
if (clientSetting != serverSetting)
{
continue;
}
foreach (var typeName in clientSetting.Types)
{
var type = Discovery.GetTypeFromName(typeName);
if (!type.IsInterface)
{
throw new Exception($"{type.GetNiceName()} is not an interface");
}
var typeDetails = TypeAnalyzer.GetTypeDetail(type);
if (!typeDetails.Interfaces.Contains(typeof(IBaseProvider)))
{
throw new Exception($"{type.GetNiceName()} does not inherit {nameof(IBaseProvider)}");
}
var commandTypes = GetCommandTypesFromInterface(type);
foreach (var commandType in commandTypes)
{
serverTypes.Add(commandType);
}
var eventTypes = GetEventTypesFromInterface(type);
foreach (var eventType in eventTypes)
{
serverTypes.Add(eventType);
}
if (typeDetails.Attributes.Any(x => x is ServiceExposedAttribute))
{
serverTypes.Add(type);
}
}
}
foreach (var serviceSetting in serviceSettings.Services)
{
if (serviceSetting.Types == null || serviceSetting.Types.Length == 0)
{
continue;
}
ICommandClient commandClient = null;
IEventClient eventClient = null;
IQueryClient queryClient = null;
foreach (var typeName in serviceSetting.Types)
{
var type = Discovery.GetTypeFromName(typeName);
if (!type.IsInterface)
{
throw new Exception($"{type.GetNiceName()} is not an interface");
}
var typeDetails = TypeAnalyzer.GetTypeDetail(type);
if (!typeDetails.Interfaces.Contains(typeof(IBaseProvider)))
{
throw new Exception($"{type.GetNiceName()} does not inherit {nameof(IBaseProvider)}");
}
var commandTypes = GetCommandTypesFromInterface(type);
if (commandTypes.Count > 0)
{
if (serviceSetting == serverSetting)
{
if (commandServer == null)
{
var encryptionKey = String.IsNullOrWhiteSpace(serviceSetting.EncryptionKey) ? null : SymmetricEncryptor.GetKey(serviceSetting.EncryptionKey);
commandServer = serviceCreator.CreateCommandServer(serverUrl, encryptionKey);
commandServer.SetHandler(HandleRemoteCommandDispatchAsync, HandleRemoteCommandDispatchAwaitAsync);
if (!commandServers.Contains(commandServer))
{
commandServers.Add(commandServer);
}
}
foreach (var commandType in commandTypes)
{
if (commandClients.Keys.Contains(commandType))
{
throw new InvalidOperationException($"Command Client already registered for type {commandType.GetNiceName()}");
}
if (commandServerTypes.Contains(commandType))
{
throw new InvalidOperationException($"Command Server already registered for type {commandType.GetNiceName()}");
}
commandServerTypes.Add(commandType);
commandServer.RegisterCommandType(commandType);
}
}
else
{
if (commandClient == null)
{
var encryptionKey = String.IsNullOrWhiteSpace(serviceSetting.EncryptionKey) ? null : SymmetricEncryptor.GetKey(serviceSetting.EncryptionKey);
commandClient = serviceCreator.CreateCommandClient(relayRegister?.RelayUrl ?? serviceSetting.ExternalUrl, encryptionKey);
}
var clientCommandTypes = commandTypes.Where(x => !serverTypes.Contains(x)).ToArray();
if (clientCommandTypes.Length > 0)
{
foreach (var commandType in clientCommandTypes)
{
if (commandServerTypes.Contains(commandType))
{
throw new InvalidOperationException($"Command Server already registered for type {commandType.GetNiceName()}");
}
if (commandClients.Keys.Contains(commandType))
{
throw new InvalidOperationException($"Command Client already registered for type {commandType.GetNiceName()}");
}
commandClients.TryAdd(commandType, commandClient);
}
}
else
{
if (commandClient is IDisposable disposable)
{
disposable.Dispose();
}
}
}
}
var eventTypes = GetEventTypesFromInterface(type);
if (eventTypes.Count > 0)
{
if (serviceSetting == serverSetting)
{
if (eventServer == null)
{
var encryptionKey = String.IsNullOrWhiteSpace(serviceSetting.EncryptionKey) ? null : SymmetricEncryptor.GetKey(serviceSetting.EncryptionKey);
eventServer = serviceCreator.CreateEventServer(serverUrl, encryptionKey);
eventServer.SetHandler(HandleRemoteEventDispatchAsync);
if (!eventServers.Contains(eventServer))
{
eventServers.Add(eventServer);
}
}
foreach (var eventType in eventTypes)
{
if (eventClients.Keys.Contains(eventType))
{
throw new InvalidOperationException($"Event Client already registered for type {eventType.GetNiceName()}");
}
if (eventServerTypes.Contains(eventType))
{
throw new InvalidOperationException($"Event Server already registered for type {eventType.GetNiceName()}");
}
eventServerTypes.Add(eventType);
eventServer.RegisterEventType(eventType);
}
}
else
{
if (eventClient == null)
{
var encryptionKey = String.IsNullOrWhiteSpace(serviceSetting.EncryptionKey) ? null : SymmetricEncryptor.GetKey(serviceSetting.EncryptionKey);
eventClient = serviceCreator.CreateEventClient(relayRegister?.RelayUrl ?? serviceSetting.ExternalUrl, encryptionKey);
}
var clientEventTypes = eventTypes.Where(x => !serverTypes.Contains(x)).ToArray();
if (clientEventTypes.Length > 0)
{
foreach (var eventType in eventTypes)
{
if (eventServerTypes.Contains(eventType))
{
throw new InvalidOperationException($"Event Server already registered for type {eventType.GetNiceName()}");
}
if (!eventClients.Keys.Contains(eventType))
{
eventClients.TryAdd(eventType, eventClient);
}
}
}
else
{
if (eventClient is IDisposable disposable)
{
disposable.Dispose();
}
}
}
}
if (typeDetails.Attributes.Any(x => x is ServiceExposedAttribute))
{
if (serviceSetting == serverSetting)
{
if (queryServer == null)
{
var encryptionKey = String.IsNullOrWhiteSpace(serviceSetting.EncryptionKey) ? null : SymmetricEncryptor.GetKey(serviceSetting.EncryptionKey);
queryServer = serviceCreator.CreateQueryServer(serverUrl, encryptionKey);
queryServer.SetHandler(HandleRemoteQueryCallAsync);
if (!queryServers.Contains(queryServer))
{
queryServers.Add(queryServer);
}
}
if (queryClients.Keys.Contains(type))
{
throw new InvalidOperationException($"Query Client already registered for type {type.GetNiceName()}");
}
if (queryServerTypes.Contains(type))
{
throw new InvalidOperationException($"Query Server already registered for type {type.GetNiceName()}");
}
queryServerTypes.Add(type);
queryServer.RegisterInterfaceType(type);
}
else
{
if (queryClient == null)
{
var encryptionKey = String.IsNullOrWhiteSpace(serviceSetting.EncryptionKey) ? null : SymmetricEncryptor.GetKey(serviceSetting.EncryptionKey);
queryClient = serviceCreator.CreateQueryClient(relayRegister?.RelayUrl ?? serviceSetting.ExternalUrl, encryptionKey);
}
if (!serverTypes.Contains(type))
{
if (queryServerTypes.Contains(type))
{
throw new InvalidOperationException($"Query Server already registered for type {type.GetNiceName()}");
}
if (commandClients.Keys.Contains(type))
{
throw new InvalidOperationException($"Query Client already registered for type {type.GetNiceName()}");
}
queryClients.TryAdd(type, queryClient);
}
else
{
if (queryClient is IDisposable disposable)
{
disposable.Dispose();
}
}
}
}
}
}
Dictionary <string, HashSet <string> > relayRegisterTypes = null;
if (relayRegister != null)
{
relayRegisterTypes = new Dictionary <string, HashSet <string> >();
}
if (commandServer != null)
{
commandServer.Open();
if (relayRegister != null)
{
var commandTypes = commandServer.GetCommandTypes().Select(x => x.GetNiceName()).ToArray();
if (!relayRegisterTypes.TryGetValue(commandServer.ConnectionString, out HashSet <string> relayTypes))
{
relayTypes = new HashSet <string>();
relayRegisterTypes.Add(commandServer.ConnectionString, relayTypes);
}
foreach (var type in commandTypes)
{
relayTypes.Add(type);
}
}
}
if (eventServer != null)
{
eventServer.Open();
if (relayRegister != null)
{
var eventTypes = eventServer.GetEventTypes().Select(x => x.GetNiceName()).ToArray();
if (!relayRegisterTypes.TryGetValue(eventServer.ConnectionString, out HashSet <string> relayTypes))
{
relayTypes = new HashSet <string>();
relayRegisterTypes.Add(eventServer.ConnectionString, relayTypes);
}
foreach (var type in eventTypes)
{
relayTypes.Add(type);
}
}
}
if (queryServer != null)
{
queryServer.Open();
if (relayRegister != null)
{
var queryTypes = queryServer.GetInterfaceTypes().Select(x => x.GetNiceName()).ToArray();
if (!relayRegisterTypes.TryGetValue(queryServer.ConnectionString, out HashSet <string> relayTypes))
{
relayTypes = new HashSet <string>();
relayRegisterTypes.Add(queryServer.ConnectionString, relayTypes);
}
foreach (var type in queryTypes)
{
relayTypes.Add(type);
}
}
}
if (relayRegister != null)
{
foreach (var group in relayRegisterTypes)
{
relayRegister.Register(group.Key, group.Value.ToArray());
}
}
if (serverSetting.InstantiateTypes != null && serverSetting.InstantiateTypes.Length > 0)
{
foreach (var instantiation in serverSetting.InstantiateTypes)
{
try
{
var type = Discovery.GetTypeFromName(instantiation);
var instance = Activator.CreateInstance(type);
instanciations.Add(instance);
}
catch (Exception ex)
{
_ = Log.ErrorAsync($"Failed to instantiate {instantiation}", ex);
}
}
}
}
}