6ea38faa6f
Deployment Manager (WP-1–8, WP-16): - DeploymentService: full pipeline (flatten→validate→send→track→audit) - OperationLockManager: per-instance concurrency control - StateTransitionValidator: Enabled/Disabled/NotDeployed transition matrix - ArtifactDeploymentService: broadcast to all sites with per-site results - Deployment identity (GUID + revision hash), idempotency, staleness detection - Instance lifecycle commands (disable/enable/delete) with deduplication Store-and-Forward (WP-9–15): - StoreAndForwardStorage: SQLite persistence, 3 categories, no max buffer - StoreAndForwardService: fixed-interval retry, transient-only buffering, parking - ReplicationService: async best-effort to standby (fire-and-forget) - Parked message management (query/retry/discard from central) - Messages survive instance deletion, S&F drains on disable 620 tests pass (+79 new), zero warnings.
49 lines
1.7 KiB
C#
49 lines
1.7 KiB
C#
using ScadaLink.Commons.Types.Enums;
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namespace ScadaLink.DeploymentManager;
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/// <summary>
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/// WP-4: State transition matrix for instance lifecycle.
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///
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/// State | Deploy | Disable | Enable | Delete
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/// ----------|--------|---------|--------|-------
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/// NotDeploy | OK | NO | NO | NO
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/// Enabled | OK | OK | NO | OK
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/// Disabled | OK* | NO | OK | OK
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///
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/// * Deploy on a Disabled instance also enables it.
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/// </summary>
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public static class StateTransitionValidator
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{
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public static bool CanDeploy(InstanceState currentState) =>
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currentState is InstanceState.NotDeployed or InstanceState.Enabled or InstanceState.Disabled;
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public static bool CanDisable(InstanceState currentState) =>
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currentState == InstanceState.Enabled;
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public static bool CanEnable(InstanceState currentState) =>
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currentState == InstanceState.Disabled;
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public static bool CanDelete(InstanceState currentState) =>
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currentState is InstanceState.Enabled or InstanceState.Disabled;
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/// <summary>
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/// Returns a human-readable error message if the transition is invalid, or null if valid.
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/// </summary>
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public static string? ValidateTransition(InstanceState currentState, string operation)
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{
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var allowed = operation.ToLowerInvariant() switch
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{
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"deploy" => CanDeploy(currentState),
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"disable" => CanDisable(currentState),
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"enable" => CanEnable(currentState),
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"delete" => CanDelete(currentState),
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_ => false
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};
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if (allowed) return null;
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return $"Operation '{operation}' is not allowed when instance is in state '{currentState}'.";
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}
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}
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