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.
77 lines
3.3 KiB
C#
77 lines
3.3 KiB
C#
using System.Collections.Frozen;
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namespace ZB.MOM.WW.ScadaBridge.Commons.Messages.Management;
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/// <summary>
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/// Bidirectional name registry for management command records. The registry contains
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/// exactly the non-abstract <c>*Command</c> types declared in the
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/// <c>ZB.MOM.WW.ScadaBridge.Commons.Messages.Management</c> namespace; these are the commands that
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/// travel over the HTTP / ClusterClient management boundary.
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/// </summary>
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/// <remarks>
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/// <see cref="Resolve"/> and <see cref="GetCommandName"/> are symmetric:
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/// <c>Resolve(GetCommandName(t))</c> returns <c>t</c> for every type
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/// <see cref="GetCommandName"/> accepts. <see cref="GetCommandName"/> rejects any type
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/// the registry does not contain rather than computing an unresolvable name.
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/// </remarks>
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public static class ManagementCommandRegistry
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{
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private static readonly FrozenDictionary<string, Type> Commands = BuildRegistry();
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/// <summary>
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/// Names keyed by command type, for the reverse lookup. Keeps
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/// <see cref="GetCommandName"/> in lock-step with the forward registry.
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/// </summary>
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private static readonly FrozenDictionary<Type, string> NamesByType =
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Commands.ToFrozenDictionary(kv => kv.Value, kv => kv.Key);
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/// <summary>
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/// Resolves a management command wire name to its CLR type, or null if not registered.
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/// </summary>
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/// <param name="commandName">The wire name of the management command (without the "Command" suffix).</param>
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public static Type? Resolve(string commandName)
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{
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return Commands.GetValueOrDefault(commandName);
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}
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/// <summary>
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/// Returns the registered wire name for a management command type.
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/// </summary>
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/// <param name="commandType">The CLR type of the management command to look up.</param>
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/// <exception cref="ArgumentException">
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/// Thrown when <paramref name="commandType"/> is not a registered management
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/// command — i.e. not a non-abstract <c>*Command</c> type in the
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/// <c>ZB.MOM.WW.ScadaBridge.Commons.Messages.Management</c> namespace. This keeps the method
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/// symmetric with <see cref="Resolve"/>: it never yields a name that
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/// <see cref="Resolve"/> cannot turn back into the same type.
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/// </exception>
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public static string GetCommandName(Type commandType)
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{
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ArgumentNullException.ThrowIfNull(commandType);
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if (NamesByType.TryGetValue(commandType, out var name))
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return name;
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throw new ArgumentException(
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$"'{commandType.FullName}' is not a registered management command. " +
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$"Management commands must be non-abstract '*Command' records declared in " +
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$"the '{typeof(ManagementEnvelope).Namespace}' namespace.",
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nameof(commandType));
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}
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private static FrozenDictionary<string, Type> BuildRegistry()
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{
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var ns = typeof(ManagementEnvelope).Namespace!;
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var assembly = typeof(ManagementEnvelope).Assembly;
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return assembly.GetTypes()
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.Where(t => t.Namespace == ns
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&& t.Name.EndsWith("Command", StringComparison.Ordinal)
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&& !t.IsAbstract)
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.ToFrozenDictionary(
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t => t.Name[..^"Command".Length],
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t => t,
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StringComparer.OrdinalIgnoreCase);
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}
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}
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