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Basic RabbitMQ comms from ClinicManagement to FrontDesk working
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2 changes: 1 addition & 1 deletion
2
ClinicManagement/src/ClinicManagement.Blazor/wwwroot/appsettings.json
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55 changes: 55 additions & 0 deletions
55
ClinicManagement/src/ClinicManagement.Infrastructure/Messaging/RabbitMessagePublisher.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| using System; | ||
| using System.Text; | ||
| using Ardalis.GuardClauses; | ||
| using ClinicManagement.Core.Interfaces; | ||
| using PluralsightDdd.SharedKernel.Interfaces; | ||
| using Microsoft.Extensions.ObjectPool; | ||
| using RabbitMQ.Client; | ||
| using System.Text.Json; | ||
| using PluralsightDdd.SharedKernel; | ||
|
|
||
| namespace ClinicManagement.Infrastructure.Messaging | ||
| { | ||
| public class RabbitMessagePublisher : IMessagePublisher | ||
| { | ||
| private readonly DefaultObjectPool<IModel> _objectPool; | ||
|
|
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| public RabbitMessagePublisher(IPooledObjectPolicy<IModel> objectPolicy) | ||
| { | ||
| _objectPool = new DefaultObjectPool<IModel>(objectPolicy, Environment.ProcessorCount * 2); | ||
| } | ||
|
|
||
| public void Publish(IApplicationEvent applicationEvent) | ||
| { | ||
| Guard.Against.Null(applicationEvent, nameof(applicationEvent)); | ||
|
|
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| var channel = _objectPool.Get(); | ||
|
|
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| object message = (object)applicationEvent; | ||
| try | ||
| { | ||
| string exchangeName = MessagingConstants.Exchanges.FRONTDESK_CLINICMANAGEMENT_EXCHANGE; | ||
| channel.ExchangeDeclare(exchangeName, "direct", true, false, null); | ||
|
|
||
| var sendBytes = Encoding.UTF8.GetBytes(JsonSerializer.Serialize(message)); | ||
|
|
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| var properties = channel.CreateBasicProperties(); | ||
| properties.Persistent = true; | ||
|
|
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| channel.BasicPublish( | ||
| exchange: exchangeName, | ||
| routingKey: "entity-changes", | ||
| basicProperties: properties, | ||
| body: sendBytes); | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| throw ex; | ||
| } | ||
| finally | ||
| { | ||
| _objectPool.Return(channel); | ||
| } | ||
| } | ||
| } | ||
| } |
49 changes: 49 additions & 0 deletions
49
...Management/src/ClinicManagement.Infrastructure/Messaging/RabbitModelPooledObjectPolicy.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| using Microsoft.Extensions.ObjectPool; | ||
| using RabbitMQ.Client; | ||
| using PluralsightDdd.SharedKernel; | ||
|
|
||
| namespace ClinicManagement.Infrastructure.Messaging | ||
| { | ||
| // source: https://www.c-sharpcorner.com/article/publishing-rabbitmq-message-in-asp-net-core/ | ||
| public class RabbitModelPooledObjectPolicy : IPooledObjectPolicy<IModel> | ||
| { | ||
| private readonly IConnection _connection; | ||
|
|
||
| public RabbitModelPooledObjectPolicy() | ||
| { | ||
| _connection = GetConnection(); | ||
| } | ||
|
|
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| private IConnection GetConnection() | ||
| { | ||
| var factory = new ConnectionFactory() | ||
| { | ||
| HostName = "localhost", // TODO: Read from config | ||
| UserName = MessagingConstants.Credentials.DEFAULT_USERNAME, | ||
| Password = MessagingConstants.Credentials.DEFAULT_PASSWORD, | ||
| Port = 5672, | ||
| VirtualHost = "/", | ||
| }; | ||
|
|
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| return factory.CreateConnection(); | ||
| } | ||
|
|
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| public IModel Create() | ||
| { | ||
| return _connection.CreateModel(); | ||
| } | ||
|
|
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| public bool Return(IModel obj) | ||
| { | ||
| if (obj.IsOpen) | ||
| { | ||
| return true; | ||
| } | ||
| else | ||
| { | ||
| obj?.Dispose(); | ||
| return false; | ||
| } | ||
| } | ||
| } | ||
| } |
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