mirror of
https://github.com/OPCFoundation/UA-.NETStandard.git
synced 2026-10-22 09:37:12 +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.
64 lines
2.8 KiB
C#
64 lines
2.8 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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namespace Opc.Ua.Server.AliasNames.PubSub
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{
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/// <summary>
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/// Translates a local <see cref="NodeId"/> (whose
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/// <see cref="NodeId.NamespaceIndex"/> refers to the publisher's
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/// local namespace table) into a server-independent
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/// <see cref="PortableNodeId"/> (namespace URI + server URI +
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/// identifier) suitable for Part 17 Annex D PubSub messages.
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/// </summary>
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/// <remarks>
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/// <para>
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/// The Part 17 <c>AliasCategoryUpdateDataType.Category</c> field is
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/// typed as <c>PortableNodeId</c> because cross-server PubSub
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/// subscribers may have completely different local namespace tables
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/// — they cannot meaningfully consume raw <c>NodeId</c> indices.
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/// </para>
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/// <para>
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/// Implementations typically read from
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/// <see cref="IServerInternal.NamespaceUris"/> and
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/// <see cref="IServerInternal.ServerUris"/>; the default
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/// <see cref="ServerPortableNodeIdResolver"/> does exactly that.
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/// </para>
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/// </remarks>
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public interface IPortableNodeIdResolver
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{
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/// <summary>
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/// Builds a <see cref="PortableNodeId"/> for the supplied
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/// <see cref="NodeId"/>. Returns <c>null</c> when the namespace
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/// index does not have a corresponding URI in the resolver's
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/// table.
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/// </summary>
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PortableNodeId? ToPortable(NodeId nodeId);
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}
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}
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