Joseph Doherty
34 lines
1.3 KiB
C#
34 lines
1.3 KiB
C#
using System.Collections.Concurrent;
|
|
using ZB.MOM.WW.OtOpcUa.Commons.Messages.Drivers;
|
|
|
|
namespace ZB.MOM.WW.OtOpcUa.AdminUI.Hubs;
|
|
|
|
/// <summary>
|
|
/// Thread-safe in-memory implementation of <see cref="IDriverResilienceStatusStore"/>.
|
|
/// Keyed by <c>(DriverInstanceId, HostName)</c>; last write wins.
|
|
/// </summary>
|
|
public sealed class InMemoryDriverResilienceStatusStore : IDriverResilienceStatusStore
|
|
{
|
|
private readonly ConcurrentDictionary<(string Instance, string Host), DriverResilienceStatusChanged> _byPair = new();
|
|
|
|
/// <inheritdoc />
|
|
public event Action<DriverResilienceStatusChanged>? SnapshotChanged;
|
|
|
|
/// <inheritdoc />
|
|
public void Upsert(DriverResilienceStatusChanged snapshot)
|
|
{
|
|
_byPair[(snapshot.DriverInstanceId, snapshot.HostName)] = snapshot;
|
|
// Capture-then-invoke so a concurrent unsubscribe can't null the delegate mid-raise.
|
|
SnapshotChanged?.Invoke(snapshot);
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public IReadOnlyList<DriverResilienceStatusChanged> GetForInstance(string driverInstanceId) =>
|
|
_byPair.Values
|
|
.Where(s => string.Equals(s.DriverInstanceId, driverInstanceId, StringComparison.Ordinal))
|
|
.ToList();
|
|
|
|
/// <inheritdoc />
|
|
public IReadOnlyCollection<DriverResilienceStatusChanged> GetAll() => _byPair.Values.ToArray();
|
|
}
|