mirror of
https://github.com/OPCFoundation/UA-.NETStandard.git
synced 2026-10-26 12:40:03 +08:00
Marc Schier
535d017840
* Add OPC UA Part 17 (Alias Names) support Server-side: pluggable IAliasNameStore + thread-safe InMemoryAliasNameStore, AliasNameStoreRegistry (live dispatcher, surfaces through optional IAliasNameStoreRegistryProvider on ServerInternalData), AliasNameNodeManager (standalone CustomNodeManager2; defaults to SecurityAdmin-only mutations on SignAndEncrypt channels), AliasNameMethodDispatcher bridging generated typed FindAlias/FindAliasVerbose/Add/Delete *MethodState.OnCallAsync handlers, AliasNameWildcardMatcher (Part 4 §7.40 Like operator with proper escape handling), and a DiagnosticsNodeManager partial that late-binds the standard well-known Aliases (i=23470), TagVariables (i=23479) and Topics (i=23488) FindAlias methods plus Aliases.LastChange through the registry. Client-side: AliasNameClient (OpenStandardAliases/TagVariables/Topics + arbitrary category root) covering all four Part 17 methods, sub-category enumeration and ReadLastChangeAsync. Hardcoded method-id fast-path for standard categories; cached TranslateBrowsePaths resolution for custom ones. Service-level errors map to typed exceptions (UnauthorizedAccessException / NotSupportedException). AliasNameResolver (IAsyncDisposable) gives a name->NodeId cache with forward and reverse lookup; default refresh is Manual with opt-in AutoOnLastChange polling that compares VersionTime on inequality (wrap-safe). Reference server: registers an InMemoryAliasNameStore for the standard TagVariables + Topics categories with sample seeds (TIC101_Setpoint, TIC101_PV, FIC202_Flow, Pump1_Status, Heater_Power, MultiRefAlias, ServerEvents, AuditEvents) so the standard well-known FindAlias methods return data through the DiagnosticsNodeManager late binder. Tests: 45 server-side cases (wildcard matcher, in-memory store, registry, node manager) plus 11 mocked-session client cases and 4 end-to-end integration cases against a live ReferenceServer over a real OPC UA channel. All 60 tests pass; full solution builds clean across net472/net48/netstandard2.1/net8.0/net9.0/net10.0. Docs: Docs/Part17AliasNames.md plus a link from Docs/README.md.
77 lines
3.1 KiB
C#
77 lines
3.1 KiB
C#
/* ========================================================================
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* Copyright (c) 2005-2025 The OPC Foundation, Inc. All rights reserved.
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*
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* OPC Foundation MIT License 1.00
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* The complete license agreement can be found here:
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* http://opcfoundation.org/License/MIT/1.00/
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* ======================================================================*/
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using System;
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namespace Opc.Ua.Server.AliasNames
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{
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/// <summary>
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/// Event payload raised by <c>IAliasNameStore.Changed</c> after
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/// any successful mutation that affects the contents of one of the
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/// store's categories. The new <see cref="LastChange"/> value reflects
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/// the updated Part 17 <c>LastChange</c> property (Part 17 §6.3.1) and
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/// MUST advance monotonically per category — though wraparound of the
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/// underlying <c>VersionTime</c> (<c>uint</c>) is permitted, so
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/// consumers comparing values should test for inequality rather than
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/// strict greater-than.
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/// </summary>
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public sealed class AliasStoreChangedEventArgs : EventArgs
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{
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/// <summary>
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/// Initializes a new instance of the
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/// <see cref="AliasStoreChangedEventArgs"/> class.
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/// </summary>
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/// <param name="categoryId">The <see cref="NodeId"/> of the affected
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/// category.</param>
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/// <param name="lastChange">The category's new
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/// <c>LastChange</c> value (<c>VersionTime</c>).</param>
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public AliasStoreChangedEventArgs(NodeId categoryId, uint lastChange)
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{
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if (categoryId.IsNull)
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{
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throw new ArgumentException(
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"categoryId must not be null.",
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nameof(categoryId));
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}
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CategoryId = categoryId;
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LastChange = lastChange;
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}
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/// <summary>
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/// The affected category's <see cref="NodeId"/>.
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/// </summary>
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public NodeId CategoryId { get; }
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/// <summary>
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/// The category's new <c>LastChange</c> value.
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/// </summary>
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public uint LastChange { get; }
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}
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}
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