abp/framework/test/Volo.Abp.EventBus.Tests/Volo/Abp/EventBus/Distributed/MySimpleDistributedSingleInstanceEventHandler.cs

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Volo.Abp.DependencyInjection;
using Volo.Abp.Domain.Entities.Events.Distributed;
using Volo.Abp.MultiTenancy;

namespace Volo.Abp.EventBus.Distributed;

public class MySimpleDistributedSingleInstanceEventHandler : IDistributedEventHandler<MySimpleEventData>, IDistributedEventHandler<EntityCreatedEto<MySimpleEventData>>, IDistributedEventHandler<MySimpleEto>, ITransientDependency
{
    private readonly ICurrentTenant _currentTenant;

    public MySimpleDistributedSingleInstanceEventHandler(ICurrentTenant currentTenant)
    {
        _currentTenant = currentTenant;
    }

    public static Guid? TenantId { get; set; }

    public Task HandleEventAsync(MySimpleEventData eventData)
    {
        TenantId = _currentTenant.Id;
        return Task.CompletedTask;
    }

    public Task HandleEventAsync(EntityCreatedEto<MySimpleEventData> eventData)
    {
        TenantId = _currentTenant.Id;
        return Task.CompletedTask;
    }

    public Task HandleEventAsync(MySimpleEto eventData)
    {
        var tenantIdString = eventData.Properties.GetOrDefault("TenantId").ToString();
        TenantId = tenantIdString != null ? new Guid(tenantIdString) : _currentTenant.Id;
        return Task.CompletedTask;
    }
}