feat(historian-gateway): wire ContinuousHistorizationRecorder into DI + hosted lifecycle + meters

Bind ContinuousHistorizationOptions (Enabled/OutboxPath/CommitMode/ CommitIntervalMs/DrainBatchSize/DrainIntervalSeconds/Capacity/backoff) with a warn-only Validate(); gated on Enabled AND the ServerHistorian gateway being configured, the Host registers the durable FasterLogHistorizationOutbox (container -disposed) + a gateway-backed GatewayHistorianValueWriter, and binds outbox depth/dropped observable gauges on the central scraped meter. WithOtOpcUaRuntimeActors spawns the recorder (over the same dependency-mux ref) when the options + writer + outbox resolve, registering ContinuousHistorizationRecorderKey. Spawned with an EMPTY historized-ref set: the deployed address space builds later, so ref population is a documented follow-on (a later SetHistorizedRefs feed) — T18 wires the actor + outbox + writer + meters; the ref feed is the known remaining gap. Claude-Session: https://claude.ai/code/session_012SDSQ3AcaXqPcBtDESBRii
2026-06-26 18:47:20 -04:00
parent 97528c500f
commit 2a5c717755
6 changed files with 384 additions and 0 deletions
@@ -7,6 +7,8 @@ using Xunit;
 using ZB.MOM.WW.OtOpcUa.Commons.Interfaces;
 using ZB.MOM.WW.OtOpcUa.Commons.Types;
 using ZB.MOM.WW.OtOpcUa.Configuration;
+using ZB.MOM.WW.OtOpcUa.Core.Abstractions.Historian;
+using ZB.MOM.WW.OtOpcUa.Runtime.Historian;

 namespace ZB.MOM.WW.OtOpcUa.Runtime.Tests;

@@ -71,6 +73,106 @@ public sealed class ServiceCollectionExtensionsTests
        }
    }

+    /// <summary>
+    ///     When <c>ContinuousHistorization</c> is not enabled (no options registered), the recorder
+    ///     actor is NOT spawned — its key does not resolve in the registry.
+    /// </summary>
+    [Fact]
+    public async Task Recorder_not_spawned_when_continuous_historization_disabled()
+    {
+        using var host = BuildRuntimeActorHost(extra: null);
+
+        await host.StartAsync();
+        try
+        {
+            var registry = host.Services.GetRequiredService<ActorRegistry>();
+            registry.TryGet<ContinuousHistorizationRecorderKey>(out _).ShouldBeFalse();
+        }
+        finally
+        {
+            await host.StopAsync();
+        }
+    }
+
+    /// <summary>
+    ///     When <c>ContinuousHistorization</c> is enabled and a value-writer + outbox are registered,
+    ///     the recorder actor IS spawned and its key resolves under the expected actor name.
+    /// </summary>
+    [Fact]
+    public async Task Recorder_spawned_when_enabled_with_writer_and_outbox()
+    {
+        using var host = BuildRuntimeActorHost(extra: services =>
+        {
+            services.AddSingleton(new ContinuousHistorizationOptions { Enabled = true, OutboxPath = "x" });
+            services.AddSingleton<IHistorianValueWriter>(new FakeValueWriter());
+            services.AddSingleton<IHistorizationOutbox>(new FakeOutbox());
+        });
+
+        await host.StartAsync();
+        try
+        {
+            var recorder = host.Services.GetRequiredService<IRequiredActor<ContinuousHistorizationRecorderKey>>();
+            recorder.ActorRef.ShouldNotBeNull();
+            recorder.ActorRef.Path.Name.ShouldBe(ServiceCollectionExtensions.ContinuousHistorizationRecorderActorName);
+        }
+        finally
+        {
+            await host.StopAsync();
+        }
+    }
+
+    /// <summary>Builds a driver-role host that runs <c>WithOtOpcUaRuntimeActors</c>, with optional
+    /// extra DI registrations applied before <c>AddAkka</c>.</summary>
+    private static IHost BuildRuntimeActorHost(Action<IServiceCollection>? extra)
+        => Host.CreateDefaultBuilder()
+            .ConfigureServices((_, services) =>
+            {
+                services.AddSingleton<IDbContextFactory<OtOpcUaConfigDbContext>>(
+                    new InMemoryConfigDbFactory(Guid.NewGuid().ToString("N")));
+                services.AddSingleton<IClusterRoleInfo>(new FakeClusterRoleInfo());
+                extra?.Invoke(services);
+
+                services.AddAkka("otopcua-test", (ab, _) =>
+                {
+                    ab.AddHocon(@"
+                        akka.actor.provider = ""Akka.Cluster.ClusterActorRefProvider, Akka.Cluster""
+                        akka.remote.dot-netty.tcp.hostname = ""127.0.0.1""
+                        akka.remote.dot-netty.tcp.port = 0
+                        akka.cluster.seed-nodes = []
+                        akka.cluster.roles = [""driver""]
+                    ", HoconAddMode.Prepend);
+                    ab.WithOtOpcUaRuntimeActors();
+                });
+            })
+            .Build();
+
+    /// <summary>Non-throwing fake value writer that acks every batch.</summary>
+    private sealed class FakeValueWriter : IHistorianValueWriter
+    {
+        /// <summary>Acks the write unconditionally.</summary>
+        public Task<bool> WriteLiveValuesAsync(
+            string tag, IReadOnlyList<HistorizationValue> values, CancellationToken ct)
+            => Task.FromResult(true);
+    }
+
+    /// <summary>Empty in-memory outbox fake — the spawn test only needs construction, not draining.</summary>
+    private sealed class FakeOutbox : IHistorizationOutbox
+    {
+        /// <summary>Never drops (unbounded).</summary>
+        public long DroppedCount => 0;
+        /// <summary>No-op append.</summary>
+        public ValueTask AppendAsync(HistorizationOutboxEntry entry, CancellationToken ct) => ValueTask.CompletedTask;
+        /// <summary>Always returns an empty batch.</summary>
+        public ValueTask<IReadOnlyList<HistorizationOutboxEntry>> PeekBatchAsync(int max, CancellationToken ct)
+            => ValueTask.FromResult<IReadOnlyList<HistorizationOutboxEntry>>(Array.Empty<HistorizationOutboxEntry>());
+        /// <summary>No-op remove.</summary>
+        public ValueTask RemoveAsync(Guid id, CancellationToken ct) => ValueTask.CompletedTask;
+        /// <summary>Always empty.</summary>
+        public ValueTask<int> CountAsync(CancellationToken ct) => ValueTask.FromResult(0);
+        /// <summary>No-op dispose.</summary>
+        public void Dispose() { }
+    }
+
    /// <summary>In-memory database factory for testing.</summary>
    private sealed class InMemoryConfigDbFactory(string dbName) : IDbContextFactory<OtOpcUaConfigDbContext>
    {