/// <summary>
/// 單一程序取得Q訊息用
/// </summary>
/// <param name="amqpAdapter"></param>
/// <returns></returns>
internal override string StartDequeue(AMQPAdapter amqpAdapter)
{
try
{
var connection = (IConnection)amqpAdapter.GetConnection();
using (var channel = connection.CreateModel())
{
channel.QueueDeclare(queueName, true, false, false, null);
channel.BasicQos(0, 1, false);
//var consumer = new QueueingBasicConsumer(channel);
//channel.BasicConsume(queueName, false, consumer);
//var messageIsAvailable = consumer.Queue.Dequeue(1 * 1000, out args);
var result = channel.BasicGet(queueName, false);
if (result != null)
{
//returnMessage = Encoding.UTF8.GetString(args.Body);
IBasicProperties props = result.BasicProperties;
byte[] body = result.Body;
returnMessage = Encoding.UTF8.GetString(body);
channel.BasicAck(result.DeliveryTag, false);
NLogService.Instance.Info($"{DateTime.Now} {channel.ChannelNumber} Info: 取得訊息。 QueueName= {queueName} Message: {returnMessage}");
}
}
return(returnMessage);
}
catch (TimeoutException e)
{
Console.WriteLine(e);
stopConsuming = true;
return(returnMessage);
}
catch (Exception e)
{
NLogService.Instance.Error($"{DateTime.Now}Error: TimeoutException={ e.Message} StackTrace: {e.StackTrace}");
Console.WriteLine(e);
//OnMessageReceived(new MessageReceivedEventArgs
//{
// Exception = e
//});
stopConsuming = true;
return(returnMessage);
}
}
/// <summary>
/// 有輪圈功能的Consumer
/// </summary>
/// <param name="amqpAdapter"></param>
internal override void Start(AMQPAdapter amqpAdapter)
{
try
{
var connection = (IConnection)amqpAdapter.GetConnection();
using (var channel = connection.CreateModel())
{
channel.ModelShutdown += Channel_ModelShutdown;
while (!stopConsuming)
{
if (channel.ConsumerCount(queueName) < 2 || channel.MessageCount(queueName) > 10)
{
//當Consumer少於2台，或是，Message大於10個
channel.QueueDeclare(queueName, true, false, false, queueArgs);
channel.BasicQos(0, prefetchCount, false);
var consumer = new EventingBasicConsumer(channel);
consumer.Received += OnConsumer_ReceivedII;
var test = channel.BasicConsume(queueName, noAck, consumer);
NLogService.Instance.Info($"{DateTime.Now} Info: Consumer啟動。channel: {channel.ChannelNumber}。QueueName= {queueName}。Message: {returnMessage}");
}
else
{
Thread.Sleep(3000);
}
}
}
}
catch (TimeoutException e)
{
Console.WriteLine(e);
stopConsuming = true;
}
catch (Exception exception)
{
OnMessageReceived(this, new MessageReceivedEventArgs
{
Exception = exception
});
stopConsuming = true;
}
}
/// <summary>
/// 背景Consumer處理服務之間的溝通
/// </summary>
/// <param name="amqpAdapter"></param>
internal override void StartAsync(AMQPAdapter amqpAdapter)
{
try
{
var connection = (IConnection)amqpAdapter.GetConnection();
using (var channel = connection.CreateModel())
{
channel.ModelShutdown += Channel_ModelShutdown;
while (!stopConsuming)
{
if (channel.ConsumerCount(queueName) < 2 || channel.MessageCount(queueName) > 10)
{
channel.QueueDeclare(queueName, true, false, false, queueArgs);
channel.BasicQos(0, prefetchCount, false);
var consumer = new EventingBasicConsumer(channel);
consumer.Received += OnConsumer_ReceivedII;
channel.BasicConsume(queueName, noAck, consumer);
}
else
{
Thread.Sleep(3000);
}
}
}
}
catch (TimeoutException e)
{
Console.WriteLine(e);
}
catch (Exception exception)
{
OnMessageReceived(this, new MessageReceivedEventArgs
{
Exception = exception
});
}
}
public Client()
{
_adapter = new RabbitMQAdapter();
_adapter.Connect();
}
/// <summary> /// 單一程序取得Q訊息用 /// </summary> /// <param name="amqpAdapter"></param> /// <returns></returns> internal abstract string StartDequeue(AMQPAdapter amqpAdapter);
/// <summary> /// 背景Consumer處理服務之間的溝通 /// </summary> /// <param name="amqpAdapter"></param> internal abstract void StartAsync(AMQPAdapter amqpAdapter);
