Joseph Doherty
9cff87fe85
Remove project bookkeeping citations from shipped code comments across the solution: hyphenated task IDs (WP-14, StoreAndForward-025), milestone/task/ issue refs (M3, Task 4, Audit Log #23, #21), Bundle X task-bundle labels, and C/D/K/S/T phase labels. Comment text only — no code logic, string/log literals, or XML-doc structure changed. Genuine descriptions are preserved (only the citation is stripped), and technical lookalikes are retained (UTF-8, SHA-256, T00:00:00, M365, UTC-5, pre-C4/pre-C5 schema versions). Flagged by the new CommentChecker TaskReferenceInComment / TrackingReferenceInComment checks plus targeted grep passes; full solution builds clean, append-only guard tests pass.
25 lines
1.0 KiB
C#
25 lines
1.0 KiB
C#
namespace ZB.MOM.WW.ScadaBridge.InboundAPI;
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/// <summary>
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/// Abstraction the inbound API endpoint uses to determine whether
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/// this node is the active (cluster-leader) central node.
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///
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/// The design states the inbound API is "Central cluster only (active node)" and
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/// "fails over with it". A standby central node must not execute method scripts or
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/// <c>Route.To()</c> calls — that can race the active node or run against stale
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/// singleton state. <see cref="InboundApiEndpointFilter"/> consults this gate and
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/// returns HTTP 503 from a standby so Traefik/clients only reach the live node.
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///
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/// The implementation lives in the Host (it needs Akka cluster state); when no
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/// implementation is registered, the endpoint defaults to "allow" so non-clustered
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/// hosts and tests are unaffected.
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/// </summary>
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public interface IActiveNodeGate
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{
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/// <summary>
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/// <c>true</c> when this node is the active central node and may serve the
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/// inbound API; <c>false</c> on a standby node.
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/// </summary>
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bool IsActiveNode { get; }
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}
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