feat(api, bll): IMqService - добавлен метод получения статистики по очереди. StatRabbitMqController - статистика по RabbitMq

PARR.BLL/Domain/Mq/MqQueueCountResult.cs

@@ -0,0 +1,16 @@
+namespace PARR.BLL.Domain.Mq
+{
+    /// <summary>
+    /// Результат запроса кол-ва сообщений в очереди RabbitMq
+    /// </summary>
+    public class MqQueueCountResult
+    {
+        public bool IsSuccess { get;set; }
+
+        public int Count { get; set; }
+
+        public int ConsumerCount { get; set; }
+
+        public Exception? Exception { get; set; }
+    }
+}

PARR.BLL/Services/Implementations/MqService.cs

@@ -4,6 +4,7 @@ using PARR.BLL.Domain.Mq;
 using PARR.BLL.Services.Interfaces;
 using RabbitMQ.Client;
 using RabbitMQ.Client.Events;
+using System.Runtime;
 using System.Text;
 
 namespace PARR.BLL.Services.Implementations
@@ -154,6 +155,34 @@ namespace PARR.BLL.Services.Implementations
             }
         }
 
+        public MqQueueCountResult GetQueueCount(IMqSettings mqSettings, string queueName)
+        {
+            var factory = new ConnectionFactory
+            {
+                HostName = mqSettings.HostName,
+                UserName = mqSettings.User,
+                Password = mqSettings.Password,
+            };
+
+            try
+            {
+                using (var connection = factory.CreateConnection())
+                using (var channel = connection.CreateModel())
+                {
+                    var messageCount = channel.MessageCount(queueName);
+                    var consumerCount = channel.ConsumerCount(queueName);
+
+                    return new MqQueueCountResult { Count = (int)messageCount, ConsumerCount = (int)consumerCount, IsSuccess = true };
+                }
+            }
+            catch (Exception ex)
+            {
+                logger.LogError(ex, $"Ошибка при запросе кол-ва сообщений в очереди {queueName}");
+
+                return new MqQueueCountResult { Count = 0, IsSuccess = false, Exception = ex };
+            }
+        }
+
         public void Dispose()
         {
             channel?.Close();

PARR.BLL/Services/Interfaces/IMqService.cs

@@ -7,6 +7,7 @@ namespace PARR.BLL.Services.Interfaces
 
     public interface IMqService : IDisposable
     {
+        MqQueueCountResult GetQueueCount(IMqSettings mqSettings, string queueName);
         bool InitConsumer(IMqSettings mqSettings, MqMessageHandlerDelegate messageHandler);
         MqSendResult Send(IMqSettings mqSettings, string[] msgList);
     }