Joseph Doherty
32 lines
1.8 KiB
C#
32 lines
1.8 KiB
C#
namespace ZB.MOM.WW.OtOpcUa.Commons.OpcUa;
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/// <summary>
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/// Single source of truth for equipment-namespace OPC UA NodeId strings. The variable NodeId is
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/// FOLDER-SCOPED (<c>{parent}/{Name}</c>), NOT the driver-side FullName — a driver wire ref is not
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/// unique across identical machines, so FullName-as-NodeId would collide in the sink. Used by the
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/// materialiser (Phase7Applier), the VirtualTag publish map, and the driver live-value router so all
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/// three agree on the exact NodeId a variable was placed at.
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/// </summary>
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public static class EquipmentNodeIds
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{
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/// <summary>The sub-folder NodeId under an equipment for a non-empty FolderPath: <c>{equipmentId}/{folderPath}</c>.</summary>
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/// <param name="equipmentId">The owning equipment's NodeId.</param>
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/// <param name="folderPath">The tag/vtag FolderPath (must be non-empty for this to be meaningful).</param>
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/// <returns>The sub-folder NodeId string.</returns>
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public static string SubFolder(string equipmentId, string folderPath) => $"{equipmentId}/{folderPath}";
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/// <summary>
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/// The folder-scoped variable NodeId: <c>{parent}/{name}</c> where <c>parent = equipmentId</c> when
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/// <paramref name="folderPath"/> is null/empty, else <see cref="SubFolder"/>.
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/// </summary>
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/// <param name="equipmentId">The owning equipment's NodeId.</param>
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/// <param name="folderPath">The tag/vtag FolderPath, or null/empty for "directly under the equipment".</param>
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/// <param name="name">The tag/vtag Name (the leaf browse segment).</param>
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/// <returns>The folder-scoped variable NodeId string.</returns>
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public static string Variable(string equipmentId, string? folderPath, string name)
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{
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var parent = string.IsNullOrWhiteSpace(folderPath) ? equipmentId : SubFolder(equipmentId, folderPath);
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return $"{parent}/{name}";
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}
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}
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