add rabbitmq client.

src/Cap.Consistency.RabbitMQ/Cap.Consistency.RabbitMQ.csproj

@@ -13,4 +13,8 @@
     <ProjectReference Include="..\Cap.Consistency\Cap.Consistency.csproj" />
   </ItemGroup>
 
+  <ItemGroup>
+    <Folder Include="Microsoft.Extensions.DependencyInjection\" />
+  </ItemGroup>
+
 </Project>
\ No newline at end of file

src/Cap.Consistency.RabbitMQ/RabbitMQProducerClient.cs

+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading.Tasks;
+using Cap.Consistency.Infrastructure;
+using Cap.Consistency.Producer;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+using RabbitMQ.Client;
+
+namespace Cap.Consistency.RabbitMQ
+{
+    public class RabbitMQProducerClient : IProducerClient
+    {
+
+        private readonly ConsistencyOptions _options;
+        private readonly ILogger _logger;
+
+        public RabbitMQProducerClient(IOptions<ConsistencyOptions> options, ILoggerFactory loggerFactory) {
+            _options = options.Value;
+            _logger = loggerFactory.CreateLogger(nameof(RabbitMQProducerClient));
+        }
+
+        public Task SendAsync(string topic, string content) {
+            var factory = new ConnectionFactory() { HostName = _options.BrokerUrlList };
+            using (var connection = factory.CreateConnection())
+            using (var channel = connection.CreateModel()) {
+                channel.ExchangeDeclare(exchange: "topic_logs",
+                                        type: "topic");
+
+
+                var body = Encoding.UTF8.GetBytes(content);
+                channel.BasicPublish(exchange: "topic_logs",
+                                     routingKey: topic,
+                                     basicProperties: null,
+                                     body: body);
+
+                return Task.CompletedTask;
+            }
+        }
+    }
+}