Joseph Doherty
7b0b9c7365
Solution + 23 src projects + 26 test projects renamed; folders, csproj, namespaces, and ScadaLinkDbContext/ScadaBridgeDbContext class updated. ActorSystem "scadalink" → "scadabridge", Akka seed-node URLs migrated. SQL roles/logins, LDAP domains, CLI command name, and CLI config dir (~/.scadalink → ~/.scadabridge) also renamed. Build green; 5 Host.Tests fail awaiting SQL login rename in next commit. Pre-existing StaleTagMonitor timing flakes unchanged. Rename script committed at tools/rename-to-scadabridge.sh.
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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/// InboundAPI-008: 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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