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Add basic first implementation of Event bus with rabbitMQ

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This commit is contained in:
dsanz 2017-03-09 15:56:34 +01:00
parent 9b26253c4a
commit 18a402044e
12 changed files with 259 additions and 3 deletions
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2
docker-compose.yml
View File

@ -9,6 +9,7 @@ services:
depends_on:
- basket.data
- identity.api
- rabbitmq
catalog.api:
image: eshop/catalog.api
@ -17,6 +18,7 @@ services:
dockerfile: Dockerfile
depends_on:
- sql.data
- rabbitmq
identity.api:
image: eshop/identity.api

54
eShopOnContainers-ServicesAndWebApps.sln
View File

@ -48,6 +48,10 @@ Project("{E53339B2-1760-4266-BCC7-CA923CBCF16C}") = "docker-compose", "docker-co
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "WebSPA", "src\Web\WebSPA\WebSPA.csproj", "{F16E3C6A-1C94-4EAB-BE91-099618060B68}"
EndProject
Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Common", "Common", "{47857844-D05A-4C37-BFB2-AF19B7EC418D}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Infrastructure", "src\Services\Common\Infrastructure\Infrastructure.csproj", "{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Ad-Hoc|Any CPU = Ad-Hoc|Any CPU
@ -494,6 +498,54 @@ Global
{F16E3C6A-1C94-4EAB-BE91-099618060B68}.Release|x64.Build.0 = Release|Any CPU
{F16E3C6A-1C94-4EAB-BE91-099618060B68}.Release|x86.ActiveCfg = Release|Any CPU
{F16E3C6A-1C94-4EAB-BE91-099618060B68}.Release|x86.Build.0 = Release|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Ad-Hoc|Any CPU.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Ad-Hoc|Any CPU.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Ad-Hoc|ARM.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Ad-Hoc|ARM.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Ad-Hoc|iPhone.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Ad-Hoc|iPhone.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Ad-Hoc|iPhoneSimulator.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Ad-Hoc|iPhoneSimulator.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Ad-Hoc|x64.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Ad-Hoc|x64.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Ad-Hoc|x86.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Ad-Hoc|x86.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.AppStore|Any CPU.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.AppStore|Any CPU.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.AppStore|ARM.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.AppStore|ARM.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.AppStore|iPhone.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.AppStore|iPhone.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.AppStore|iPhoneSimulator.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.AppStore|iPhoneSimulator.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.AppStore|x64.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.AppStore|x64.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.AppStore|x86.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.AppStore|x86.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Debug|Any CPU.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Debug|ARM.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Debug|ARM.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Debug|iPhone.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Debug|iPhone.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Debug|iPhoneSimulator.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Debug|iPhoneSimulator.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Debug|x64.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Debug|x64.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Debug|x86.ActiveCfg = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Debug|x86.Build.0 = Debug|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Release|Any CPU.ActiveCfg = Release|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Release|Any CPU.Build.0 = Release|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Release|ARM.ActiveCfg = Release|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Release|ARM.Build.0 = Release|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Release|iPhone.ActiveCfg = Release|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Release|iPhone.Build.0 = Release|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Release|iPhoneSimulator.ActiveCfg = Release|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Release|iPhoneSimulator.Build.0 = Release|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Release|x64.ActiveCfg = Release|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Release|x64.Build.0 = Release|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Release|x86.ActiveCfg = Release|Any CPU
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0}.Release|x86.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
@ -516,5 +568,7 @@ Global
{7796F5D8-31FC-45A4-B673-19DE5BA194CF} = {EF0337F2-ED00-4643-89FD-EE10863F1870}
{A579E108-5445-403D-A407-339AC4D1611B} = {24CD3B53-141E-4A07-9B0D-796641E1CF78}
{F16E3C6A-1C94-4EAB-BE91-099618060B68} = {E279BF0F-7F66-4F3A-A3AB-2CDA66C1CD04}
{47857844-D05A-4C37-BFB2-AF19B7EC418D} = {91CF7717-08AB-4E65-B10E-0B426F01E2E8}
{B08BA891-ABA2-4BD5-80E8-40B7546C3BE0} = {47857844-D05A-4C37-BFB2-AF19B7EC418D}
EndGlobalSection
EndGlobal

4
src/Services/Catalog/Catalog.API/Catalog.API.csproj
View File

@ -52,6 +52,10 @@
<DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="1.0.0" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\..\Common\Infrastructure\Infrastructure.csproj" />
</ItemGroup>
<ItemGroup>
<None Update="Dockerfile">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>

16
src/Services/Catalog/Catalog.API/Controllers/CatalogController.cs
View File

@ -3,6 +3,8 @@ using Microsoft.EntityFrameworkCore;
using Microsoft.eShopOnContainers.Services.Catalog.API.Infrastructure;
using Microsoft.eShopOnContainers.Services.Catalog.API.Model;
using Microsoft.eShopOnContainers.Services.Catalog.API.ViewModel;
using Microsoft.eShopOnContainers.Services.Common.Infrastructure;
using Microsoft.eShopOnContainers.Services.Common.Infrastructure.Catalog;
using Microsoft.Extensions.Options;
using System.Collections.Generic;
using System.Linq;
@ -15,11 +17,13 @@ namespace Microsoft.eShopOnContainers.Services.Catalog.API.Controllers
{
private readonly CatalogContext _context;
private readonly IOptionsSnapshot<Settings> _settings;
private readonly IEventBus _eventBus;
public CatalogController(CatalogContext context, IOptionsSnapshot<Settings> settings)
public CatalogController(CatalogContext context, IOptionsSnapshot<Settings> settings, IEventBus eventBus)
{
_context = context;
_settings = settings;
_eventBus = eventBus;
((DbContext)context).ChangeTracker.QueryTrackingBehavior = QueryTrackingBehavior.NoTracking;
}
@ -41,7 +45,7 @@ namespace Microsoft.eShopOnContainers.Services.Catalog.API.Controllers
itemsOnPage = ComposePicUri(itemsOnPage);
var model = new PaginatedItemsViewModel<CatalogItem>(
pageIndex, pageSize, totalItems, itemsOnPage);
pageIndex, pageSize, totalItems, itemsOnPage);
return Ok(model);
}
@ -99,7 +103,13 @@ namespace Microsoft.eShopOnContainers.Services.Catalog.API.Controllers
var model = new PaginatedItemsViewModel<CatalogItem>(
pageIndex, pageSize, totalItems, itemsOnPage);
//hook to run integration tests until POST methods are created
if (catalogTypeId.HasValue && catalogTypeId == 1)
{
_eventBus.Publish(new CatalogPriceChanged());
}
return Ok(model);
}

3
src/Services/Catalog/Catalog.API/Startup.cs
View File

@ -7,6 +7,7 @@
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.eShopOnContainers.Services.Catalog.API.Infrastructure;
using Microsoft.eShopOnContainers.Services.Common.Infrastructure;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
@ -73,6 +74,8 @@
.AllowCredentials());
});
services.AddSingleton<IEventBus, EventBus>();
services.AddMvc();
}

20
src/Services/Common/Infrastructure/Catalog/CatalogPriceChanged.cs Normal file
View File

@ -0,0 +1,20 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace Microsoft.eShopOnContainers.Services.Common.Infrastructure.Catalog
{
public class CatalogPriceChanged : IIntegrationEvent
{
private readonly string _eventName = "catalogpricechanged";
public string Name {
get
{
return _eventName;
}
}
public string Message { get { return "CatalogPriceChanged!!"; } }
}
}

14
src/Services/Common/Infrastructure/Catalog/CatalogPriceChangedHandler.cs Normal file
View File

@ -0,0 +1,14 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace Microsoft.eShopOnContainers.Services.Common.Infrastructure.Catalog
{
public class CatalogPriceChangedHandler : IIntegrationEventHandler<CatalogPriceChanged>
{
public void Handle(CatalogPriceChanged @event)
{
throw new NotImplementedException();
}
}
}

101
src/Services/Common/Infrastructure/EventBus.cs Normal file
View File

@ -0,0 +1,101 @@

using Microsoft.eShopOnContainers.Services.Common.Infrastructure.Catalog;
using RabbitMQ.Client;
using RabbitMQ.Client.Events;
using System;
using System.Collections.Generic;
using System.Text;
namespace Microsoft.eShopOnContainers.Services.Common.Infrastructure
{
public class EventBus : IEventBus
{
private readonly Dictionary<string, List<IIntegrationEventHandler>> _handlers;
private readonly Dictionary<string, Tuple<IModel, IConnection>> _listeners;
public EventBus()
{
_handlers = new Dictionary<string, List<IIntegrationEventHandler>>();
_listeners = new Dictionary<string, Tuple<IModel, IConnection>>();
}
public void Publish(IIntegrationEvent @event)
{
var factory = new ConnectionFactory() { HostName = "172.20.0.1" };
using (var connection = factory.CreateConnection())
using (var channel = connection.CreateModel())
{
channel.QueueDeclare(queue: @event.Name,
durable: false,
exclusive: false,
autoDelete: false,
arguments: null);
string message = ((CatalogPriceChanged)@event).Message;
var body = Encoding.UTF8.GetBytes(message);
channel.BasicPublish(exchange: "",
routingKey: @event.Name,
basicProperties: null,
body: body);
}
}
public void Subscribe<T>(IIntegrationEventHandler<T> handler) where T : IIntegrationEvent
{
var eventName = typeof(T).Name;
if (_handlers.ContainsKey(eventName))
{
_handlers[eventName].Add(handler);
}
else
{
var factory = new ConnectionFactory() { HostName = "172.18.0.1" };
var connection = factory.CreateConnection();
var channel = connection.CreateModel();
channel.QueueDeclare(queue: eventName,
durable: false,
exclusive: false,
autoDelete: false,
arguments: null);
var consumer = new EventingBasicConsumer(channel);
consumer.Received += (model, ea) =>
{
var body = ea.Body;
var message = Encoding.UTF8.GetString(body);
};
channel.BasicConsume(queue: "hello",
noAck: true,
consumer: consumer);
;
_listeners.Add(eventName, new Tuple<IModel, IConnection>(channel, connection));
_handlers.Add(eventName, new List<IIntegrationEventHandler>());
_handlers[eventName].Add(handler);
}
}
public void Unsubscribe<T>(IIntegrationEventHandler<T> handler) where T : IIntegrationEvent
{
var eventName = typeof(T).Name;
if (_handlers.ContainsKey(eventName) && _handlers[eventName].Contains(handler))
{
_handlers[eventName].Remove(handler);
if (_handlers[eventName].Count == 0)
{
_handlers.Remove(eventName);
var connectionItems =_listeners[eventName];
_listeners.Remove(eventName);
connectionItems.Item1.Close();
connectionItems.Item2.Close();
}
}
}
}
}

13
src/Services/Common/Infrastructure/IEventBus.cs Normal file
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@ -0,0 +1,13 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace Microsoft.eShopOnContainers.Services.Common.Infrastructure
{
public interface IEventBus
{
void Subscribe<T>(IIntegrationEventHandler<T> handler) where T: IIntegrationEvent;
void Unsubscribe<T>(IIntegrationEventHandler<T> handler) where T : IIntegrationEvent;
void Publish(IIntegrationEvent @event);
}
}

11
src/Services/Common/Infrastructure/IIntegrationEvent.cs Normal file
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@ -0,0 +1,11 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace Microsoft.eShopOnContainers.Services.Common.Infrastructure
{
public interface IIntegrationEvent
{
string Name { get; }
}
}

14
src/Services/Common/Infrastructure/IIntegrationEventHandler.cs Normal file
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@ -0,0 +1,14 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace Microsoft.eShopOnContainers.Services.Common.Infrastructure
{
public interface IIntegrationEventHandler<in TIntegrationEvent> : IIntegrationEventHandler
where TIntegrationEvent: IIntegrationEvent
{
void Handle(TIntegrationEvent @event);
}
public interface IIntegrationEventHandler { }
}

10
src/Services/Common/Infrastructure/Infrastructure.csproj Normal file
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@ -0,0 +1,10 @@
<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
<PropertyGroup>
<TargetFramework>netcoreapp1.1</TargetFramework>
<RuntimeFrameworkVersion>1.1.0</RuntimeFrameworkVersion>
<RootNamespace>Microsoft.eShopOnContainers.Services.Common.Infrastructure</RootNamespace>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="RabbitMQ.Client" Version="4.1.1" />
</ItemGroup>
</Project>