public void Dispose()
{
_channel?.Dispose();
_channel = null;
_connection?.Dispose();
_connection = null;
}
private IConnection CreateConnection(RabbitMQ.Client.IConnection connection,
IModel outboundModel)
{
var builder = new ConsumedMessageBuilder(_configuration.SerializationConfiguration,
_configuration.MessageTypeResolver);
var outboundChannel = _configuration.OutboundChannelBuilder(outboundModel,
_configuration);
var consumers = _promises.Select(_ =>
{
var model = CreateInboundModel(connection,
_configuration.PrefetchSize,
_configuration.PrefetchCount);
var consumer = _(builder).BuildConsumer(new InboundChannel(model),
outboundChannel);
return(new { Model = model, Consumer = consumer });
})
.ToList();
foreach (var consumer in consumers)
{
consumer.Consumer.Declare(consumer.Model);
}
return(new Connection(connection,
consumers.Select(_ => _.Consumer),
outboundChannel,
_configuration));
}
public Task Close()
{
if (!taskQueue.IsValueCreated)
{
return(Task.CompletedTask);
}
return(taskQueue.Value.Add(() =>
{
if (channelInstance != null)
{
channelInstance.Dispose();
channelInstance = null;
}
// ReSharper disable once InvertIf
if (connection != null)
{
connection.Dispose();
connection = null;
}
taskQueue.Value.Dispose();
}));
}
/// <summary>
/// 生产者
/// </summary>
/// <param name="settings"></param>
/// <param name="delayedMessageEnabled">延迟消息已启用（需启用插件 rabbitmq_delayed_message_exchange）</param>
/// <param name="autoConfig">自动建Exchange和Bind</param>
public Producer(ProducerSettings settings, bool delayedMessageEnabled, bool autoConfig)
{
if (settings == null)
{
throw new ArgumentNullException(nameof(settings));
}
if (settings.AmqpConnection == null && settings.AmqpUri == null)
{
throw new ArgumentNullException("AmqpConnection or AmqpUri must be set.");
}
_clientName = string.IsNullOrEmpty(settings.ClientName) ? "undefined producer client" : settings.ClientName;
_amqpUri = settings.AmqpUri;
if (settings.AmqpConnection != null)
{
_amqpConnection = settings.AmqpConnection;
_clientName = settings.AmqpConnection.ClientProvidedName;
}
if (settings.SendMsgTimeout > 0)
{
_sendMsgTimeout = TimeSpan.FromSeconds(settings.SendMsgTimeout);
}
if (settings.MaxChannelIdleDuration > 0)
{
_maxIdleDuration = TimeSpan.FromSeconds(settings.MaxChannelIdleDuration);
}
_delayedMessageEnabled = delayedMessageEnabled;
_autoConfig = autoConfig;
_channelPool = new ConcurrentQueue <Tuple <DateTime, IRabbitMQChannel> >();
_cleanIdleChannelTimer = new Timer(ClearIdleChannel);
}
private static void WriteMessage(RabbitMQ.Client.IConnection conn, string from)
{
Console.Write("To: ");
var to = Console.ReadLine();
if (String.IsNullOrEmpty(to))
{
return;
}
Console.Write("Message: ");
var message = Console.ReadLine();
try
{
using (var model = conn.CreateModel())
{
model.BasicReturn += new EventHandler <RabbitMQ.Client.Events.BasicReturnEventArgs>(blabla);
var rabbitMessage = new RabbitMessage()
{
From = from, Message = message
};
var body = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(rabbitMessage));
model.BasicPublish(to + "Exchange", string.Empty, new BasicProperties()
{
DeliveryMode = 2
}, body);
}
}
catch (Exception ex)
{
string msg = ex.Message;
}
}
/// <summary>
/// Registers the mq listen and hubs.
/// </summary>
public static void RegisterMQListenAndHubs()
{
ConnectionFactory factory = new ConnectionFactory();
factory.UserName = "******";
// "gue
factory.Password = "******";
factory.VirtualHost = "/";
factory.HostName = "192.168.1.105";
RabbitMQ.Client.IConnection conn = factory.CreateConnection();
IModel channel = conn.CreateModel();
var consumer = new EventingBasicConsumer(channel);
consumer.Received += (ch, ea) =>
{
var body = ea.Body;
if (body != null)
{
string message = System.Text.Encoding.Default.GetString(body);
GlobalHost.ConnectionManager.GetHubContext <RealTimeDataHub>().Clients.All.realData(message);
}
((IModel)ch).BasicAck(ea.DeliveryTag, false);
};
String consumerTag = channel.BasicConsume("lenovo", false, consumer);
}
/// <summary>
/// 执行关闭
/// </summary>
/// <returns>事件数据</returns>
protected override object ExecClose()
{
if (channels.Count > 0)
{
foreach (IModel channel in channels)
{
if (channel.IsOpen)
{
channel.Close();
channel.Dispose();
}
}
channels.Clear();
}
if (Status == ConnectionStatusType.OPENED)
{
connection.Close();
connection.Dispose();
}
connection = null;
virtualPath = RabbitConnectionInfo.DEFAULT_VIRTUAL_PATH;
return(null);
}
public void Dispose()
{
lock (this.syncRoot)
{
try
{
this.Close();
if (this.connection != null)
{
this.logger.Trace(
$"[{this.endpoint}]: disposing connection [{this.Id}] at [{this.connection.Endpoint}].");
this.connection?.Dispose();
this.connection = null;
}
}
catch (Exception ex)
{
this.logger.Trace($"An error '{ex.Message}' during connection cleanup has been suppressed");
}
finally
{
this.OnDisposed();
}
}
}
public void Open(CancellationToken token)
{
this.logger.Info($"Connecting to RabbitMQ using [{this.ConnectionString}].");
var clientProperties = new Dictionary <string, object>
{
{
"Endpoint",
this.endpoint.Address
},
{ "Machine", Environment.MachineName },
{
"Location",
Path.GetDirectoryName(
Assembly.GetExecutingAssembly().CodeBase)
}
};
var connectionFactory = new ConnectionFactory
{
Uri = this.ConnectionString,
ClientProperties = clientProperties,
RequestedConnectionTimeout = ConnectionTimeout
};
var retryCount = 0;
while (!token.IsCancellationRequested)
{
INativeConnection con = null;
try
{
con = connectionFactory.CreateConnection();
con.ConnectionShutdown += this.OnConnectionShutdown;
this.connection = con;
this.OnOpened();
this.logger.Info($"Connection [{this.Id}] opened at [{this.connection.Endpoint}]");
return;
}
catch (Exception ex)
{
var secondsToRetry = Math.Min(10, retryCount);
this.logger.WarnFormat(
"Unable to connect to RabbitMQ. Retrying in {0} seconds...",
ex,
secondsToRetry);
if (con != null)
{
con.ConnectionShutdown -= this.OnConnectionShutdown;
con.Abort(OperationTimeout);
}
Thread.Sleep(TimeSpan.FromSeconds(secondsToRetry));
retryCount++;
}
}
}
} // AmqpClient
#region ConnectionHandlerProgram
private Exception MakeNewConnection(ref RmqCl.IConnection connection, ref RmqCl.IModel channel, bool reconnecting)
{
// This method attempts to make a new connection. Returns true if success, otherwise false.
var connRequest = ConnectionRequestObj;
var factory = new RmqCl.ConnectionFactory()
{
HostName = connRequest.Host,
UserName = connRequest.Username,
Password = connRequest.Password
};
// Secure connection?
if (connRequest.Secure)
{
factory.Ssl.Enabled = true;
factory.Ssl.ServerName = connRequest.Host;
factory.Ssl.Version = System.Security.Authentication.SslProtocols.Tls12;
}
try
{
// Create connection and channel
connection = factory.CreateConnection();
channel = connection.CreateModel();
// Declare the exchange
channel.ExchangeDeclare(exchange: connRequest.Exchange, type: "topic", autoDelete: false, durable: true, arguments: null);
// Create a queue to receive messages
var queueName = channel.QueueDeclare(queue: "", // Use a generated queue name
durable: false, // The queue does not survive a broker restart
exclusive: true, // The queue is only for this application, and it will be deleted on app exit
autoDelete: true, // The queue is deleted when no one is bound to it
arguments: null
).QueueName;
// Bind the queue to the topic pattern
channel.QueueBind(queue: queueName, exchange: connRequest.Exchange, routingKey: connRequest.TopicPattern, arguments: null);
// Set up a consumer for messages
m_messageConsumer = new RmqCl.Events.EventingBasicConsumer(channel);
m_messageConsumer.Received += MessageReceived;
channel.BasicConsume(queue: queueName, noAck: true, consumerTag: "", noLocal: false, exclusive: false, arguments: new Dictionary <string, object> {
}, consumer: m_messageConsumer);
// Sign up for the shutdown event
channel.ModelShutdown += ModelShutdown; // This event will fire if the connection is lost
return(null);
}
catch (Exception e)
{
// Clean the connection
DestroyConnection(ref connection, ref channel);
return(e);
}
} // MakeNewConnection
/// <summary>
/// 关闭
/// </summary>
public override void Close()
{
if (channels.Count > 0)
{
foreach (IModel channel in channels)
{
if (channel.IsOpen)
{
channel.Close();
channel.Dispose();
}
}
channels.Clear();
}
if (Status == ConnectionStatusType.OPENED)
{
connection.Close();
connection.Dispose();
}
connection = null;
OnClosed();
}
public void Dispose()
{
if (!(_connection is null))
{
_connection.Dispose();
_connection = null;
}
}
protected internal virtual IModel CreateInboundModel(RabbitMQ.Client.IConnection connection,
UInt32 prefetchSize,
UInt16 prefetchCount)
{
var model = connection.CreateModel();
model.BasicQos(prefetchSize, prefetchCount, false);
return(model);
}
private void OnConnectionShutdown(INativeConnection conn, ShutdownEventArgs eventArgs)
{
Task.Factory.StartNew(
() =>
{
conn.ConnectionShutdown -= this.OnConnectionShutdown;
this.OnClosed();
});
}
//options
internal IModel CreateChannel(IConnection connection)
{
var channel = connection.CreateModel();
channel.QueueDeclare(QueueName, Durable, Exclusive, AutoDelete, Arguments);
//configure channel using options here
return(channel);
}
private void ConnectionHandlerProgram()
{
// This method is run in the connection handler thread.
// Multiple variables are declared here, because this limits their access for this thread only.
RmqCl.IConnection connection = null;
RmqCl.IModel channel = null;
// This indicates if the connection is being restored
bool connectionRestoreSequenceOn = false;
// Run the thread until "break"
while (true)
{
// Wait for something to happen.
// This wait has a maximum length, as this same wait call occurs between reconnect attempts.
m_connectionWait.WaitOne(TimeSpan.FromSeconds(RetryIntervalSeconds));
// Choosing what to do based on the flags
if (m_disposed.Value || m_userHasRequestedTerminate.Value)
{
// Quitting
break;
}
else if (m_triggerConnectionRestore.Value || connectionRestoreSequenceOn)
{
// Connection lost! Attempting to restore.
// Reset the triggering flag
m_triggerConnectionRestore.Value = false;
// Keep on attempting restore until successful
connectionRestoreSequenceOn = !AttemptConnectionRestore(ref connection, ref channel);
}
else if (ConnectionRequestObj != null && connection == null)
{
// Attempting to connect
SendConnectionEvent(true, ConnectionEventType.Connecting);
var exception = MakeNewConnection(ref connection, ref channel, false);
if (exception == null)
{
SendConnectionEvent(true, ConnectionEventType.Connected);
}
else
{
SendConnectionEvent(false, ConnectionEventType.ConnectingFailed, exception);
}
}
// Otherwise, nothing to do
}
// Quitting the thread
TerminateImpl(ref connection, ref channel);
m_connectionWait.Dispose();
} // ConnectionHandlerProgram
public static void CreateConnection()
{
_factory = new ConnectionFactory {
HostName = "localhost", UserName = "******", Password = "******"
};
_connection = _factory.CreateConnection();
_model = _connection.CreateModel();
_model.ExchangeDeclare(ExchangeName, "fanout", true);
}
public RabbitMQConnection(string exchange, Rabbit.IConnection connection)
{
if (string.IsNullOrWhiteSpace(exchange))
{
throw new ArgumentNullException(nameof(exchange));
}
_exchange = exchange;
_connection = connection ?? throw new ArgumentNullException(nameof(connection));
}
/// <remarks>
/// Only call this from a task in the taskQueue to ensure IModel is only used
/// by a single thread, as is recommended in the RabbitMQ .NET Client documentation.
/// </remarks>
private async Task <IModel> GetChannel(int?maxAttempts = null)
{
if (channelInstance != null)
{
return(channelInstance);
}
var attempts = 0;
var connectionFactory = new ConnectionFactory
{
HostName = ConnectionParams.HostName,
Port = ConnectionParams.Port,
VirtualHost = ConnectionParams.VirtualHost,
UserName = ConnectionParams.Username,
Password = ConnectionParams.Password,
AutomaticRecoveryEnabled = true, // The created connection is an IRecoverable
RequestedHeartbeat = 30
};
while (true)
{
try
{
connection = connectionFactory.CreateConnection();
channelInstance = connection.CreateModel();
if (ConnectionParams.PrefetchCount > 0)
{
channelInstance.BasicQos(0, ConnectionParams.PrefetchCount, false);
}
((IRecoverable)connection).Recovery += (sender, e) => ConnectionEventListener?.Reconnected();
channelInstance.ModelShutdown += (sender, e) => ConnectionEventListener?.Disconnected();
ConnectionEventListener?.Connected();
break;
}
catch (BrokerUnreachableException)
{
attempts++;
if (maxAttempts.HasValue && attempts > maxAttempts.Value)
{
throw;
}
await Task.Delay(ReconnectDelay);
}
}
return(channelInstance);
}
public RabbitMQWrapper(RabbitMQ.Client.IConnection connection)
{
_rmqConnection = connection;
_rmqModel = _rmqConnection.CreateModel();
_rmqModel.ExchangeDeclare(_exchangeName, ExchangeType.Topic);
_serializerSettings = new JsonSerializerSettings
{
ContractResolver = new CamelCasePropertyNamesContractResolver(),
NullValueHandling = NullValueHandling.Ignore
};
}
private void SetupConnection()
{
if (_connection != null && _connection.IsOpen)
{
return;
}
_connection?.Dispose();
_connection = _factory.CreateConnection();
_connection.ConnectionShutdown += _connection_ConnectionShutdown;
_logger.LogInformation("Connection is ready");
}
public void Constructor_NullConnection_ArgumentNullException()
{
//Arrange
string exchange = nameof(exchange);
Rabbit.IConnection connection = null;
//Act
var action = new Action(() => new RabbitMQConnection(exchange, connection));
//Assert
Assert.Throws <ArgumentNullException>(nameof(connection), action);
}
/// <summary>
/// 关闭
/// </summary>
public void Shutdown()
{
if (Interlocked.CompareExchange(ref _isRunning, 0, 1) == 1)
{
Thread.Sleep(100);
if (_amqpConnection != null)
{
if (_mode == ConsumeMode.Push)
{
foreach (var topic in _globalConsumers.Keys)
{
var consumers = _globalConsumers[topic];
foreach (var queueIndex in consumers.Keys)
{
var channel = consumers[queueIndex].Model;
if (channel.IsOpen)
{
channel.Close(RabbitMQConstants.ConnectionForced, $"\"{topic}-{queueIndex}\"'s normal channel disposed");
}
}
consumers.Clear();
}
_globalConsumers.Clear();
}
else
{
foreach (var topic in _globalChannels.Keys)
{
var channels = _globalChannels[topic];
foreach (var queueIndex in channels.Keys)
{
var channel = channels[queueIndex].Item1;
var consumerThread = channels[queueIndex].Item2;
if (channel.IsOpen)
{
channel.Close(RabbitMQConstants.ConnectionForced, $"\"{topic}-{queueIndex}\"'s normal channel disposed");
}
}
channels.Clear();
}
_globalChannels.Clear();
}
if (_selfCreate)
{
_amqpConnection.Close();
_amqpConnection = null;
}
}
}
}
public void Open(CancellationToken token)
{
lock (this.syncRoot)
{
if (this.connection?.IsOpen ?? false)
{
this.logger.Trace($"Connection [{this.Id}] is already open");
return;
}
this.logger.Info($"Connecting to RabbitMQ using [{this.ConnectionString}]");
var retryCount = 0;
while (true)
{
token.ThrowIfCancellationRequested();
INativeConnection con = null;
try
{
con = this.connectionFactory.CreateConnection();
con.ConnectionShutdown += this.OnConnectionShutdown;
this.connection = con;
this.OnOpened();
this.logger.Info($"Connection [{this.Id}] opened at [{this.connection.Endpoint}]");
return;
}
catch (Exception ex)
{
var secondsToRetry = Math.Min(10, retryCount);
this.logger.WarnFormat(
"Unable to connect to RabbitMQ. Retrying in {0} seconds...",
ex,
secondsToRetry);
if (con != null)
{
con.ConnectionShutdown -= this.OnConnectionShutdown;
con.Abort(OperationTimeout);
}
Thread.Sleep(TimeSpan.FromSeconds(secondsToRetry));
retryCount++;
}
}
}
}
private static RabbitMQ.Client.IConnection InitRabbitMqConn()
{
RabbitMqConfigs rabbitmqConfigs = new RabbitMqConfigs(_configs.GetSection("rabbitMq"));
ConnectionFactory factory = new ConnectionFactory
{
HostName = rabbitmqConfigs.Host,
Port = rabbitmqConfigs.Port,
UserName = rabbitmqConfigs.User,
Password = rabbitmqConfigs.Password,
};
RabbitMQ.Client.IConnection rabbitmqConn = factory.CreateConnection();
return(rabbitmqConn);
}
private void OnConnectionShutdown(INativeConnection conn, ShutdownEventArgs eventArgs)
{
Task.Factory.StartNew(
() =>
{
this.logger.Trace($"Connection [{this.Id}] has been closed due to {eventArgs.ReplyText} ({eventArgs.ReplyCode})");
lock (this.syncRoot)
{
conn.ConnectionShutdown -= this.OnConnectionShutdown;
}
this.OnClosed();
});
}
/// <summary>
/// 启动
/// </summary>
public void Start()
{
if (Interlocked.CompareExchange(ref _isRunning, 1, 0) == 0)
{
if (_amqpConnection == null)
{
var connFactory = new RabbitMQConnectionFactory
{
Uri = _amqpUri
};
_amqpConnection = connFactory.CreateConnection(_clientName);
_selfCreate = true;
}
if (_autoConfig)
{
using (var channelForConfig = _amqpConnection.CreateModel())
{
foreach (var topic in _topics.Keys)
{
var queueCount = _topics[topic];
var subscribeQueues = GetSubscribeQueues(queueCount, _consumerCount, _consumerSequence);
var subTopic = GetSubTopic(topic);
channelForConfig.ExchangeDeclare(topic, ExchangeType.Fanout, true, false, null);
channelForConfig.ExchangeDeclare(subTopic, ExchangeType.Direct, true, false, null);
channelForConfig.ExchangeBind(subTopic, topic, "", null);
for (byte queueIndex = 0; queueIndex < queueCount; queueIndex++)
{
string queueName = GetQueue(topic, queueIndex);
channelForConfig.QueueDeclare(queueName, true, false, false, null);
channelForConfig.QueueBind(queueName, subTopic, queueIndex.ToString(), null);
}
}
channelForConfig.Close();
}
}
if (_mode == ConsumeMode.Push)
{
ConsumeByPush();
}
else
{
ConsumeByPull();
}
}
}
public RabbitMessageProcessor(
ITransformer <TSrc, TDst> transformer,
IWriter <TDst> writer,
ILoggerFactory loggerFactory,
IOptions <RabbitConfig> options,
IConnection connection)
{
_writer = writer;
_connection = connection;
_logger = loggerFactory.CreateLogger(GetType());
_rabbitConfig = options.Value;
_transformer = transformer;
_channel = connection.CreateModel();
_consumer = new EventingBasicConsumer(_channel);
_consumerTag = Guid.NewGuid().ToString();
}
/// <summary>
/// 每次重启时,清空队列
/// </summary>
public static void DeleteQueue()
{
using (IConnection conn = RabbitMqFactory.CreateConnection())
{
using (IModel channel = conn.CreateModel())
{
try
{
channel.QueueDelete(QueueName, true, false);
}
catch (Exception e)
{
LogWrite.WriteLogInfo($"重启时,存在消费者,不删除队列,异常{e.Message}");
}
}
}
}
public EventConsumer()
{
_factory = new ConnectionFactory
{
HostName = HostName,
UserName = UserName,
Password = Password
};
_connection = _factory.CreateConnection();
_model = _connection.CreateModel();
_model.QueueDeclare(QueueName, true, false, false, null);
_model.QueueBind(QueueName, ExchangeName, "");
_model.BasicQos(0, 1, false);
_subscription = new Subscription(_model, QueueName, false);
_gameRepository = new MongoRepository <HSGame>();
_deckRepository = new MongoRepository <HSDeck>();
}
public RabbitMqMessageBus(IDependencyResolver resolver, RabbitMqScaleoutConfiguration configuration)
: base(resolver, configuration)
{
Open(0);
var connectionFactory = CreateConnectionFactory(configuration);
connection = connectionFactory.CreateConnection();
model = connection.CreateModel();
var exchange = configuration.ExchangeName ?? "messages";
model.QueueDeclare(configuration.QueueName, false, false, true, new Hashtable());
model.ExchangeDeclare(exchange, ExchangeType.Fanout);
model.QueueBind(configuration.QueueName, exchange, "");
consumerTag = model.BasicConsume(configuration.QueueName, true, new Consumer(this.OnReceived));
}
/// <summary>Initializes a new instance of the <see cref="SimpleConnection"/> class.</summary>
/// <param name="connectionDelegate">The connection delegate.</param>
public SimpleConnection(RabbitMQ.Client.IConnection connectionDelegate) { this.connectionDelegate = connectionDelegate; }
protected virtual void ConnectToBroker()
{
if (_outboundModel != null && !_outboundModel.IsClosed) return;
_connection = _connectionBuilder.CreateConnection(_configuration.EndpointUri);
//Logger.DebugFormat("RMQMessagingGateway: Opening channel to Rabbit MQ on connection {0}", Configuration.AMPQUri.GetSanitizedUri());
_outboundModel = _connection.CreateModel();
//When AutoClose is true, the last channel to close will also cause the connection to close1. If it is set to
//true before any channel is created, the connection will close then and there.
if (_connection.AutoClose == false)
_connection.AutoClose = true;
foreach (var exchange in _exchanges)
exchange.Declare(_outboundModel);
foreach (var queue in _queues)
queue.Declare(_outboundModel);
foreach (var binding in _bindings)
binding.Declare(_outboundModel);
var builder = new ConsumedMessageBuilder(_configuration.SerializationConfiguration, _configuration.MessageTypeResolver);
_outboundChannel = _configuration.OutboundChannelBuilder(_outboundModel, _configuration);
var consumers = _promises.Select(_ =>
{
var model = CreateInboundModel(_connection, _configuration.PrefetchSize, _configuration.PrefetchCount);
var consumer = _(builder).BuildConsumer(new InboundChannel(model), _outboundChannel);
return new {Model = model, Consumer = consumer};
})
.ToList();
foreach (var consumer in consumers)
consumer.Consumer.Declare(consumer.Model);
_consumers = consumers.Select(_ => _.Consumer);
}
/// <summary>
/// Queues the exists.
/// </summary>
/// <param name="connection">The connection.</param>
/// <param name="queue">The queue.</param>
/// <returns></returns>
/// Use native Rabbit API to test queue, bypassing all the connection and channel caching and callbacks in Spring
/// AMQP.
/// @param connection the raw connection to use
/// @param queue the Queue to test
/// @return true if the queue exists
/// <remarks></remarks>
private bool QueueExists(IConnection connection, Queue queue)
{
var target = connection;
if (target == null)
{
var connectionFactory = new ConnectionFactory();
connectionFactory.Port = BrokerTestUtils.GetPort();
target = connectionFactory.CreateConnection();
}
var channel = target.CreateModel();
try
{
var result = channel.QueueDeclarePassive(queue.Name);
return result != null;
}
catch (Exception e)
{
if (e.Message.Contains("RESOURCE_LOCKED"))
{
return true;
}
return false;
}
finally
{
if (connection == null)
{
target.Close();
}
}
}
