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Dequeue.cs
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69 lines (61 loc) · 2.26 KB
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using InEngine.Core.IO;
using Microsoft.Extensions.Logging;
namespace InEngine.Core.Queuing;
public class Dequeue : IDisposable
{
private readonly IList<QueueAdapter> queueAdapters;
private bool isDisposed;
public CancellationTokenSource CancellationTokenSource { get; set; }
public QueueSettings QueueSettings { get; set; }
public MailSettings MailSettings { get; set; }
public ILogger Log { get; set; } = LogManager.GetLogger<QueueAdapter>();
public Dequeue()
{
queueAdapters = new List<QueueAdapter>();
CancellationTokenSource = new CancellationTokenSource();
}
public async Task StartAsync()
{
var allTasks = new List<Task>();
Log.LogDebug("Start dequeue tasks for primary queue...");
allTasks.AddRange(MakeTasks(true, QueueSettings.PrimaryQueueConsumers));
Log.LogDebug("Start dequeue tasks for secondary queue...");
allTasks.AddRange(MakeTasks(false, QueueSettings.SecondaryQueueConsumers));
await Task.WhenAll(allTasks);
// Recover from restart, if necessary.
QueueAdapter.Make(false, QueueSettings, MailSettings).Recover();
QueueAdapter.Make(true, QueueSettings, MailSettings).Recover();
}
IList<Task> MakeTasks(bool useSecondaryQueue = false, int numberOfTasks = 0)
{
return Enumerable.Range(0, numberOfTasks).Select((i) => {
Log.LogDebug("Registering Dequeuer {I}", i);
return Task.Factory.StartNew(() => {
var queue = QueueAdapter.Make(useSecondaryQueue, QueueSettings, MailSettings);
queue.Id = i;
queueAdapters.Add(queue);
queue.Consume(CancellationTokenSource.Token);
}, TaskCreationOptions.LongRunning);
}).ToList();
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
private void Dispose(bool disposing)
{
if (isDisposed)
return;
if (!disposing)
return;
queueAdapters.ToList().ForEach(x => ((IDisposable)x)?.Dispose());
CancellationTokenSource.Cancel();
isDisposed = true;
}
}