Joseph Doherty
f7d497e532
HistoryRead is served server-side by IHistorianDataSource; nothing ever dispatched to a driver's IHistoryProvider. Removes IHistoryProvider, the OpcUaClient history passthrough, DriverCapability.HistoryRead (+ resilience tier rows and AdminUI row), HistoryReadStatusException and its node-manager catches, and the tests that only covered them. Shared result types and HistoryAggregateNotSupportedException stay (moved to Historian/HistoryReadContracts.cs). A stored ResilienceConfig still carrying a HistoryRead key parses (diagnostic only; new test). Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
51 lines
2.6 KiB
C#
51 lines
2.6 KiB
C#
namespace ZB.MOM.WW.OtOpcUa.Core.Abstractions;
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/// <summary>
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/// Enumerates the driver-capability surface points guarded by Phase 6.1 resilience pipelines.
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/// Each value corresponds to one method (or tightly-related method group) on the
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/// <c>Core.Abstractions</c> capability interfaces (<see cref="IReadable"/>, <see cref="IWritable"/>,
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/// <see cref="ITagDiscovery"/>, <see cref="ISubscribable"/>, <see cref="IHostConnectivityProbe"/>,
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/// <see cref="IAlarmSource"/>).
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/// </summary>
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/// <remarks>
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/// Per the per-capability retry policy in <c>docs/v2/plan.md</c>: Read /
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/// Discover / Probe / AlarmSubscribe auto-retry; <see cref="Write"/> does NOT retry unless the
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/// tag-definition carries <see cref="WriteIdempotentAttribute"/>. Alarm-acknowledge is treated
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/// as a write for retry semantics (an alarm-ack is not idempotent at the plant-floor acknowledgement
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/// level even if the OPC UA spec permits re-issue).
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/// </remarks>
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public enum DriverCapability
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{
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/// <summary>Batch <see cref="IReadable.ReadAsync"/>. Retries by default.</summary>
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Read,
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/// <summary>Batch <see cref="IWritable.WriteAsync"/>. Does not retry unless tag is <see cref="WriteIdempotentAttribute">idempotent</see>.</summary>
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Write,
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/// <summary><see cref="ITagDiscovery.DiscoverAsync"/>. Retries by default.</summary>
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Discover,
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/// <summary><see cref="ISubscribable.SubscribeAsync"/> and unsubscribe. Retries by default.</summary>
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Subscribe,
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/// <summary><see cref="IHostConnectivityProbe"/> probe loop. Retries by default.</summary>
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Probe,
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/// <summary><see cref="IAlarmSource.SubscribeAlarmsAsync"/>. Retries by default.</summary>
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AlarmSubscribe,
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/// <summary><see cref="IAlarmSource.AcknowledgeAsync"/>. Does NOT retry — ack is a write-shaped operation.</summary>
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AlarmAcknowledge,
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/// <summary>
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/// <c>IDriver.InitializeAsync</c> — connection establishment (R2-10 T10 closure: without this,
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/// a driver that cannot connect contributes zero breaker input and the resilience panel stays
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/// quiet for the failure operators most care about). Does NOT retry — the
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/// <c>DriverInstanceActor</c> reconnect timer is the retry loop, and pipeline-level retries
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/// would stack inside each timer tick. The tier-default breaker threshold is deliberately low
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/// (2): at the 10 s reconnect cadence at most three attempts fit the breaker's 30 s sampling
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/// window, so a Read-sized threshold of 5 could never open on connect failures.
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/// </summary>
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Initialize,
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}
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