dd3351da93
Bundle G of Audit Log #23 M2. Bridges the FallbackAuditWriter primary- failure counter into the Site Health Monitoring report payload so a sustained audit-write outage surfaces on /monitoring/health instead of disappearing into a NoOp sink. - SiteHealthReport: add SiteAuditWriteFailures (defaulted, additive). - ISiteHealthCollector + SiteHealthCollector: new IncrementSiteAuditWriteFailures() counter, per-interval reset semantics matching ScriptErrorCount / DeadLetterCount. - HealthMetricsAuditWriteFailureCounter: adapter forwarding IAuditWriteFailureCounter.Increment() to the collector. - AddAuditLogHealthMetricsBridge(): swaps the NoOp default registration for the real bridge; called from SiteServiceRegistration after AddSiteHealthMonitoring + AddAuditLog. - Existing host-wiring test updated: site composition now resolves HealthMetricsAuditWriteFailureCounter (not NoOp). Tests: HealthMonitoring 60 -> 63 (3 new), AuditLog 56 -> 59 (3 new), full solution green.
34 lines
1.4 KiB
C#
34 lines
1.4 KiB
C#
using ScadaLink.HealthMonitoring;
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namespace ScadaLink.AuditLog.Site;
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/// <summary>
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/// Audit Log (#23) M2 Bundle G — bridges <see cref="IAuditWriteFailureCounter"/>
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/// (incremented by <see cref="FallbackAuditWriter"/> every time the primary
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/// SQLite writer throws) into <see cref="ISiteHealthCollector"/> so the count
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/// surfaces in the site health report payload as
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/// <c>SiteHealthReport.SiteAuditWriteFailures</c>.
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/// </summary>
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/// <remarks>
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/// <para>
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/// Registered by <see cref="ServiceCollectionExtensions.AddAuditLogHealthMetricsBridge"/>;
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/// callers must register <c>AddHealthMonitoring()</c> first so
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/// <see cref="ISiteHealthCollector"/> resolves. The default <see cref="AddAuditLog"/>
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/// registration keeps <see cref="NoOpAuditWriteFailureCounter"/> for nodes
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/// where Site Health Monitoring is not wired (the silent-sink contract — audit
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/// write failures must NEVER abort the user-facing action, alog.md §7).
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/// </para>
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/// </remarks>
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public sealed class HealthMetricsAuditWriteFailureCounter : IAuditWriteFailureCounter
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{
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private readonly ISiteHealthCollector _collector;
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public HealthMetricsAuditWriteFailureCounter(ISiteHealthCollector collector)
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{
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_collector = collector ?? throw new ArgumentNullException(nameof(collector));
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}
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/// <inheritdoc/>
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public void Increment() => _collector.IncrementSiteAuditWriteFailures();
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}
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