public bool TryGetConnection(string path, out PersistentConnection connection)
{
if (path == null)
{
throw new ArgumentNullException("path");
}
connection = null;
if (!String.IsNullOrEmpty(_hubPath) &&
path.StartsWith(_hubPath, StringComparison.OrdinalIgnoreCase))
{
connection = new HubDispatcher(_hubPath);
return(true);
}
foreach (var pair in _connectionMapping)
{
// If the url matches then create the connection type
if (path.StartsWith(pair.Key, StringComparison.OrdinalIgnoreCase))
{
var factory = new PersistentConnectionFactory(_resolver);
connection = factory.CreateInstance(pair.Value);
return(true);
}
}
return(false);
}
private void SubsManager_OnEventReplyRemoved(object sender, string eventName)
{
if (!PersistentConnection.IsConnected)
{
PersistentConnection.TryConnect();
}
using (var channel = PersistentConnection.CreateModel())
{
channel.QueueUnbind(QueueName, ExchangeDeclareParameters.ExchangeName, eventName);
channel.QueueUnbind(_queueNameReply, ExchangeDeclareParameters.ExchangeName, eventName);
}
if (!SubsManager.IsReplyEmpty)
{
return;
}
QueueName = string.Empty;
ConsumerChannel?.Close();
//ToDo
_queueNameReply = string.Empty;
_consumerChannelReply?.Close();
}
public override async ValueTask Publish(IIntegrationEvent @event)
{
if (!PersistentConnection.IsConnected)
{
PersistentConnection.TryConnect();
}
var policy = Policy.Handle <BrokerUnreachableException>()
.Or <SocketException>()
.Or <Exception>()
.WaitAndRetryForever(retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)), (ex, time) =>
{
Logger.LogWarning(ex.ToString());
});
using var channel = PersistentConnection.CreateModel();
var routingKey = @event.RoutingKey;
channel.ExchangeDeclare(ExchangeDeclareParameters.ExchangeName, ExchangeDeclareParameters.ExchangeType, ExchangeDeclareParameters.ExchangeDurable, ExchangeDeclareParameters.ExchangeAutoDelete);
await using var ms = new MemoryStream();
Serializer.Serialize(ms, @event);
var body = ms.ToArray();
policy.Execute(() =>
{
var properties = channel.CreateBasicProperties();
properties.DeliveryMode = 1; //2 = persistent, write on disk
properties.CorrelationId = _correlationId;
properties.ReplyTo = _queueNameReply;
channel.BasicPublish(ExchangeDeclareParameters.ExchangeName, routingKey, true, properties, body);
});
}
public IHttpHandler GetHttpHandler(RequestContext requestContext)
{
var factory = (IPersistentConnectionFactory)_resolver.GetService(typeof(IPersistentConnectionFactory));
PersistentConnection connection = factory.CreateInstance(_handlerType);
return(new AspNetHost(connection));
}
public IHttpHandler GetHttpHandler(RequestContext requestContext)
{
var factory = new PersistentConnectionFactory(_resolver);
PersistentConnection connection = factory.CreateInstance(_handlerType);
return(new AspNetHandler(_resolver, connection));
}
public void If_connects_after_disposal_should_redispose_underlying_connection()
{
var eventBus = Substitute.For <IEventBus>();
var connectionFactory = Substitute.For <IConnectionFactory>();
var mockConnection = Substitute.For <IConnection>();
PersistentConnection mockPersistentConnection = Substitute.For <PersistentConnection>(connectionFactory, eventBus);
// This test is constructed using small delays, such that the IConnectionFactory will return a connection just _after the IPersistentConnection has been disposed.
TimeSpan shimDelay = TimeSpan.FromSeconds(0.5);
connectionFactory.CreateConnection().Returns(a =>
{
Thread.Sleep(shimDelay.Double());
return(mockConnection);
});
Task.Factory.StartNew(() => { mockPersistentConnection.Initialize(); }); // Start the persistent connection attempting to connect.
Thread.Sleep(shimDelay); // Allow some time for the persistent connection code to try to create a connection.
// First call to dispose. Because CreateConnection() is stubbed to delay for shimDelay.Double(), it will not yet have returned a connection. So when the PersistentConnection is disposed, no underlying IConnection should yet be disposed.
mockPersistentConnection.Dispose();
mockConnection.DidNotReceive().Dispose();
Thread.Sleep(shimDelay.Double()); // Allow time for persistent connection code to _return its connection ...
// Assert that the connection returned from connectionFactory.CreateConnection() (_after the PersistentConnection was disposed), still gets disposed.
mockConnection.Received().Dispose();
// Ensure that PersistentConnection also did not flag (eg to IPersistentChannel) the late-made connection as successful.
connectionFactory.DidNotReceive().Success();
// Ensure that PersistentConnection does not retry after was disposed.
connectionFactory.DidNotReceive().Next();
}
public void Should_retry_connection_for_expected_connection_types_OnConnected(Type exceptionType)
{
var mockBuilder = new MockBuilder();
using (mockBuilder.Bus)
{
var first = true;
var succeeded = false;
mockBuilder.ConnectionFactory.Succeeded.Returns(c => succeeded);
mockBuilder.ConnectionFactory.When(x => x.Success()).Do(c => succeeded = true);
mockBuilder.ConnectionFactory.Configuration.ConnectIntervalAttempt = TimeSpan.FromSeconds(1);
var connection = new PersistentConnection(mockBuilder.ConnectionFactory, mockBuilder.EventBus);
mockBuilder.EventBus.Subscribe <ConnectionCreatedEvent>(e => {
if (first)
{
first = false;
ThrowException(exceptionType);
}
});
connection.Initialize();
Thread.Sleep(TimeSpan.FromSeconds(2));
mockBuilder.ConnectionFactory.Received(3).CreateConnection();
first.ShouldEqual(false);
}
}
public void If_connects_after_disposal_should_redispose_underlying_connection()
{
var logger = MockRepository.GenerateMock <IEasyNetQLogger>();
var eventBus = MockRepository.GenerateMock <IEventBus>();
var connectionFactory = MockRepository.GenerateMock <IConnectionFactory>();
var mockConnection = MockRepository.GenerateMock <IConnection>();
PersistentConnection mockPersistentConnection = MockRepository.GenerateMock <PersistentConnection>(connectionFactory, logger, eventBus);
// This test is constructed using small delays, such that the IConnectionFactory will return a connection just _after the IPersistentConnection has been disposed.
TimeSpan shimDelay = TimeSpan.FromSeconds(0.5);
connectionFactory.Expect(cf => cf.CreateConnection()).WhenCalled(a =>
{
Thread.Sleep(shimDelay.Double());
a.ReturnValue = mockConnection;
}).Repeat.Once();
Task.Factory.StartNew(() => { mockPersistentConnection.Initialize(); }); // Start the persistent connection attempting to connect.
Thread.Sleep(shimDelay); // Allow some time for the persistent connection code to try to create a connection.
// First call to dispose. Because CreateConnection() is stubbed to delay for shimDelay.Double(), it will not yet have returned a connection. So when the PersistentConnection is disposed, no underlying IConnection should yet be disposed.
mockPersistentConnection.Dispose();
mockConnection.AssertWasNotCalled(underlyingConnection => underlyingConnection.Dispose());
Thread.Sleep(shimDelay.Double()); // Allow time for persistent connection code to _return its connection ...
// Assert that the connection returned from connectionFactory.CreateConnection() (_after the PersistentConnection was disposed), still gets disposed.
mockConnection.AssertWasCalled(latedCreatedUnderlyingConnection => latedCreatedUnderlyingConnection.Dispose());
// Ensure that PersistentConnection also did not flag (eg to IPersistentChannel) the late-made connection as successful.
connectionFactory.AssertWasNotCalled(c => c.Success());
// Ensure that PersistentConnection does not retry after was disposed.
connectionFactory.AssertWasNotCalled(c => c.Next());
}
public IConnection GetPublishConnection()
{
//note: The purpose is there so that we/users can add more advanced connection managers in the future
lock (connectionFactory)
{
return connectionPublish ?? (connectionPublish = new PersistentConnection(connectionFactory, connectionConfiguration.RetryDelay));
}
}
public EventBusRabbitMQ(IOptionsMonitor <RabbitMQOptions> options,
PersistentConnection connection,
IEventExecutor eventExecutor, ILogger <EventBusRabbitMQ> logger
)
{
_options = options.CurrentValue;
_logger = logger;
_eventExecutor = eventExecutor;
_connection = connection;
_consumerChannel = CreateConsumerChannel();
}
public IConnection GetConnection(ConnectionPurpose purpose)
{
//note: The purpose is there so that we/users can add more advanced connection managers in the future
lock (connectionFactory)
{
if (connectionFailed)
throw connectionFailedReason;
return connection ?? (connection = new PersistentConnection(connectionFactory, connectionConfiguration.RetryDelay));
}
}
public void CreatesInstanceIfTypeIsPersistentConnection()
{
// Arrange
var resolver = new Mock <IDependencyResolver>();
var factory = new PersistentConnectionFactory(resolver.Object);
// Act
PersistentConnection connection = factory.CreateInstance(typeof(MyConnection));
// Assert
Assert.NotNull(connection);
}
public bool TryGetConnection(string path, out PersistentConnection connection)
{
connection = null;
if (_hubsEnabled && path.StartsWith("/signalr", StringComparison.OrdinalIgnoreCase))
{
connection = new HubDispatcher("/signalr");
return(true);
}
return(TryGetMappedConnection(path, out connection));
}
public void Should_establish_connection_when_persistent_connection_created()
{
var mockBuilder = new MockBuilder();
using var connection = new PersistentConnection(
new ConnectionConfiguration(), mockBuilder.ConnectionFactory, mockBuilder.EventBus
);
connection.CreateModel();
connection.IsConnected.Should().BeTrue();
mockBuilder.ConnectionFactory.Received(1).CreateConnection(Arg.Any <IList <AmqpTcpEndpoint> >());
}
public void Should_not_retry_connection_for_unexpected_connection_types()
{
var mockBuilder = new MockBuilder();
using (mockBuilder.Bus)
{
mockBuilder.ConnectionFactory.Configuration.ConnectIntervalAttempt = TimeSpan.FromSeconds(1);
mockBuilder.ConnectionFactory.CreateConnection().Returns(c =>
{
ThrowException(typeof(Exception));
return(null);
});
var connection = new PersistentConnection(mockBuilder.ConnectionFactory, mockBuilder.EventBus);
Assert.Throws <Exception>(() => connection.Initialize());
}
}
public void Should_be_not_connected_if_connection_not_established()
{
var mockBuilder = new MockBuilder();
mockBuilder.ConnectionFactory.CreateConnection(Arg.Any <IList <AmqpTcpEndpoint> >())
.Returns(c => throw new Exception("Test"));
using var connection = new PersistentConnection(
new ConnectionConfiguration(), mockBuilder.ConnectionFactory, mockBuilder.EventBus
);
Assert.Throws <Exception>(() => connection.CreateModel());
connection.IsConnected.Should().BeFalse();
mockBuilder.ConnectionFactory.Received().CreateConnection(Arg.Any <IList <AmqpTcpEndpoint> >());
}
private static AppDelegate ExecuteConnection(Func <IDictionary <string, object>, PersistentConnection> factory)
{
return((environment, result, fault) =>
{
// Read the request body then process the request.
ParseBodyAsync(environment).ContinueWith(task =>
{
if (task.IsFaulted)
{
// There was an error reading the body
fault(task.Exception);
}
else
{
var request = new OwinRequest(environment, task.Result);
var origin = request.Headers["Origin"];
var response = new OwinResponse(result, origin);
var hostContext = new HostContext(request, response);
try
{
PersistentConnection connection = factory(environment);
connection
.ProcessRequestAsync(hostContext)
.ContinueWith(innerTask =>
{
if (innerTask.IsFaulted)
{
fault(innerTask.Exception);
}
else
{
response.End().Catch();
}
});
}
catch (Exception ex)
{
fault(ex);
}
}
});
});
}
/// <summary>
/// Do a passive exchange declaration.
/// Or
/// (Spec method) Declare an exchange.
/// This method performs a "passive declare" on an exchange, which verifies whether. It will do nothing if the exchange already exists and result in a channel-levelprotocol exception (channel closure) if not.
/// </summary>
/// <param name="persistentConnection"></param>
/// <param name="exchange"></param>
/// <param name="type"></param>
/// <param name="durable"></param>
/// <param name="autoDelete"></param>
/// <param name="arguments"></param>
public static IModel ExchangeDeclare(this PersistentConnection persistentConnection, string exchange, string type = ExchangeType.Topic, bool durable = true, bool autoDelete = false, IDictionary <string, object> arguments = null)
{
IModel channel;
try
{
channel = persistentConnection.CreateModel();
channel.ExchangeDeclarePassive(exchange);
}
catch
{
channel = persistentConnection.CreateModel();
channel.ExchangeDeclare(exchange, type, durable, autoDelete, arguments);
}
return(channel);
}
public When_using_default_consumer_error_strategy()
{
var customConventions = new Conventions(new DefaultTypeNameSerializer())
{
ErrorQueueNamingConvention = info => "CustomEasyNetQErrorQueueName",
ErrorExchangeNamingConvention = info => "CustomErrorExchangePrefixName." + info.RoutingKey
};
mockBuilder = new MockBuilder();
var connectionConfiguration = new ConnectionConfiguration();
var connection = new PersistentConnection(connectionConfiguration, mockBuilder.ConnectionFactory, new EventBus());
errorStrategy = new DefaultConsumerErrorStrategy(
connection,
new JsonSerializer(),
customConventions,
new DefaultTypeNameSerializer(),
new DefaultErrorMessageSerializer(),
connectionConfiguration
);
const string originalMessage = "";
var originalMessageBody = Encoding.UTF8.GetBytes(originalMessage);
var context = new ConsumerExecutionContext(
(bytes, properties, info, cancellation) => Task.FromResult(AckStrategies.Ack),
new MessageReceivedInfo("consumerTag", 0, false, "orginalExchange", "originalRoutingKey", "queue"),
new MessageProperties
{
CorrelationId = string.Empty,
AppId = string.Empty
},
originalMessageBody
);
try
{
errorAckStrategy = errorStrategy.HandleConsumerError(context, new Exception());
cancelAckStrategy = errorStrategy.HandleConsumerCancelled(context);
}
catch (Exception)
{
// swallow
}
}
public void UsesDependencyResolver()
{
// Arrange
var resolver = new Mock <IDependencyResolver>();
var factory = new PersistentConnectionFactory(resolver.Object);
var otherConnection = new MyOtherConnection();
resolver.Setup(m => m.GetService(typeof(MyConnection)))
.Returns(otherConnection);
// Act
PersistentConnection connection = factory.CreateInstance(typeof(MyConnection));
// Assert
Assert.NotNull(connection);
Assert.Same(otherConnection, connection);
}
private bool TryGetMappedConnection(string path, out PersistentConnection connection)
{
connection = null;
foreach (var pair in _connectionMapping)
{
// If the url matches then create the connection type
if (path.StartsWith(pair.Key, StringComparison.OrdinalIgnoreCase))
{
var factory = DependencyResolver.Resolve <IPersistentConnectionFactory>();
connection = factory.CreateInstance(pair.Value);
return(true);
}
}
return(false);
}
private void DoInternalSubscriptionRpc(string eventName, string eventNameResult)
{
var containsKey = SubsManager.HasSubscriptionsForEvent(eventName);
if (containsKey)
{
return;
}
if (!PersistentConnection.IsConnected)
{
PersistentConnection.TryConnect();
}
using var channel = PersistentConnection.CreateModel();
channel.QueueBind(QueueName, ExchangeDeclareParameters.ExchangeName, eventName);
channel.QueueBind(_queueNameReply, ExchangeDeclareParameters.ExchangeName, eventNameResult);
}
public override Task Invoke(IOwinContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (JsonUtility.TryRejectJSONPRequest(_configuration, context))
{
return(TaskAsyncHelper.Empty);
}
var connectionFactory = new PersistentConnectionFactory(_configuration.Resolver);
PersistentConnection connection = connectionFactory.CreateInstance(_connectionType);
connection.Initialize(_configuration.Resolver);
return(connection.ProcessRequest(context.Environment));
}
public async Task <TR> CallAsync <TR>(IIntegrationEvent @event, CancellationToken cancellationToken = default)
where TR : IIntegrationEventReply
{
if (!PersistentConnection.IsConnected)
{
PersistentConnection.TryConnect();
}
var policy = Policy.Handle <BrokerUnreachableException>()
.Or <SocketException>()
.Or <Exception>()
.WaitAndRetryForever(retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)), (ex, time) =>
{
Logger.LogWarning(ex.ToString());
});
using var channel = PersistentConnection.CreateModel();
var routingKey = @event.RoutingKey;
channel.ExchangeDeclare(ExchangeDeclareParameters.ExchangeName, ExchangeDeclareParameters.ExchangeType, ExchangeDeclareParameters.ExchangeDurable, ExchangeDeclareParameters.ExchangeAutoDelete);
await using var ms = new MemoryStream();
Serializer.Serialize(ms, @event);
var body = ms.ToArray();
var correlationId = Guid.NewGuid().ToString();
var tcs = new TaskCompletionSource <dynamic>();
_callbackMapper.TryAdd(correlationId, tcs);
policy.Execute(() =>
{
var properties = channel.CreateBasicProperties();
properties.DeliveryMode = 1; //2 = persistent, write on disk
properties.CorrelationId = correlationId;
properties.ReplyTo = QueueName;
channel.BasicPublish(ExchangeDeclareParameters.ExchangeName, routingKey, true, properties, body);
});
cancellationToken.Register(() => _callbackMapper.TryRemove(correlationId, out var tmp));
return(await tcs.Task);
}
public void Should_retry_connection_for_expected_connection_types_CreateConnection(Type exceptionType)
{
var mockBuilder = new MockBuilder();
using (mockBuilder.Bus)
{
mockBuilder.ConnectionFactory.Configuration.ConnectIntervalAttempt = TimeSpan.FromSeconds(1);
mockBuilder.ConnectionFactory.Succeeded.Returns(false, true);
mockBuilder.ConnectionFactory.CreateConnection().Returns(c =>
{
ThrowException(exceptionType);
return(null);
}, c => mockBuilder.Connection);
var connection = new PersistentConnection(mockBuilder.ConnectionFactory, mockBuilder.EventBus);
connection.Initialize();
connection.IsConnected.ShouldEqual(false);
Thread.Sleep(TimeSpan.FromSeconds(2));
connection.IsConnected.ShouldEqual(true);
mockBuilder.ConnectionFactory.Received(3).CreateConnection();
}
}
protected virtual void Dispose(bool disposing)
{
if (disposed)
{
return;
}
if (disposing)
{
// Dispose managed resources.
if (connection == null)
{
return;
}
connection.Dispose();
connection = null;
}
disposed = true;
}
private static void ConnectToRemoteShares()
{
CleanupLog.WriteMethod();
List <string> remoteShares = new List <string>();
ConfigurationSettings.DirectoriesToCleanup.ForEach(path =>
{
if (path.StartsWith(@"\\"))
{
var rootPath = Path.GetPathRoot(path);
remoteShares.Add(rootPath.Trim().ToUpper());
}
});
CleanupLog.WriteLine($"{remoteShares.Distinct().Count()} Remote Shares Needed.");
remoteShares.Distinct().ToList().ForEach(path =>
{
CleanupLog.WriteLine($"Connecting to Remote Share: {path}, with: Username: {ConfigurationSettings.Username}, Password: {ConfigurationSettings.Password}");
var connection = new PersistentConnection(path, new System.Net.NetworkCredential(ConfigurationSettings.Username, ConfigurationSettings.Password));
});
}
/// <summary>
///
/// </summary>
/// <param name="services"></param>
/// <param name="connectionString"></param>
/// <param name="eventBusOptionAction"></param>
/// <returns></returns>
public static void AddRabbitMQEventBus(this Container container,
string connectionString,
Action <ConnectionConfigurationBuild> eventBusOptionAction)
{
ConnectionConfiguration configuration = new ConnectionConfiguration();
ConnectionConfigurationBuild configurationBuild = new ConnectionConfigurationBuild(configuration);
eventBusOptionAction?.Invoke(configurationBuild);
container.RegisterSingleton <IPersistentConnection>(() =>
{
IConnectionFactory factory = new ConnectionFactory
{
AutomaticRecoveryEnabled = configuration.AutomaticRecoveryEnabled,
NetworkRecoveryInterval = configuration.NetworkRecoveryInterval,
Uri = new Uri(connectionString),
};
var connection = new PersistentConnection(configuration, factory);
connection.TryConnect();
return(connection);
});
container.RegisterSingleton <IEventHandlerModuleFactory, EventHandlerModuleFactory>();
container.RegisterSingleton <RabbitMqCore, RabbitMqCore>();
foreach (Type mType in typeof(IEvent).GetAssemblies())
{
container.Register(mType);
foreach (Type hType in typeof(IEventHandler <>).GetMakeGenericType(mType))
{
container.Register(hType);
}
}
}
private IModel CreateConsumerChannelReply(CancellationToken cancel = default)
{
if (!PersistentConnection.IsConnected)
{
PersistentConnection.TryConnect();
}
var channel = PersistentConnection.CreateModel();
channel.ExchangeDeclare(ExchangeDeclareParameters.ExchangeName, ExchangeDeclareParameters.ExchangeType, ExchangeDeclareParameters.ExchangeDurable, ExchangeDeclareParameters.ExchangeAutoDelete);
channel.QueueDeclare(_queueNameReply, QueueDeclareParameters.QueueDurable, QueueDeclareParameters.QueueExclusive, QueueDeclareParameters.QueueAutoDelete, null);
channel.BasicQos(0, 1, false);
channel.CallbackException += (sender, ea) =>
{
Logger.LogError("CallbackException Rpc: " + ea.Exception.Message);
_consumerChannelReply.Dispose();
_consumerChannelReply = CreateConsumerChannelReply(cancel);
StartBasicConsumeReply();
};
return(channel);
}
public CallHandler(ConnectionConfiguration configuration, PersistentConnection connection)
{
_configuration = configuration;
_connection = connection;
}
public AspNetHandler(IDependencyResolver resolver, PersistentConnection connection)
{
_resolver = resolver;
_connection = connection;
}
public PersistentChannel CreatePersistentChannel(PersistentConnection connection)
{
Preconditions.CheckNotNull(connection, "connection");
return(new PersistentChannel(connection, this._configuration));
}
public SignalRMessageHandler(IDependencyResolver resolver, PersistentConnection connection, HttpRouteCollection routes)
{
this.resolver = resolver;
this.connection = connection;
this.routes = routes;
}
public CallHandler(IDependencyResolver resolver, PersistentConnection connection)
{
_resolver = resolver;
_connection = connection;
}
public bool TryGetConnection(Uri uri, out PersistentConnection connection)
{
return TryGetConnection(uri.LocalPath, out connection);
}
public RabbitMqCore(Container ioc, IPersistentConnection persistentConnection, IEventHandlerModuleFactory eventHandlerFactory)
{
Connection = (PersistentConnection)persistentConnection;
Ioc = ioc;
}