Files
lmxopcua/src/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions/DriverAttributeInfo.cs
T
Joseph Doherty a8703c6afe refactor(virtualtags): retire dormant VirtualTagEngine/Source/Definition + TimerTriggerScheduler (#603)
TimerTriggerScheduler was welded to the engine and has no production consumer.

Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
2026-10-08 06:51:22 -04:00

90 lines
4.7 KiB
C#

namespace ZB.MOM.WW.OtOpcUa.Core.Abstractions;
/// <summary>
/// Driver-agnostic per-attribute (tag) descriptor used by the generic node-manager
/// to build OPC UA address-space variables. Every driver maps its native attribute
/// metadata into this DTO during discovery.
/// </summary>
/// <remarks>
/// Per <c>docs/v2/plan.md</c> §5a (LmxNodeManager reusability) — <c>DriverAttributeInfo</c>
/// replaces the v1 Galaxy-specific <c>GalaxyAttributeInfo</c> in the generic node-manager
/// so the same node-manager class works against every driver.
/// </remarks>
/// <param name="FullName">
/// Driver-side full reference for read/write addressing
/// (e.g. for Galaxy: <c>"DelmiaReceiver_001.DownloadPath"</c>).
/// </param>
/// <param name="DriverDataType">Driver-agnostic data type; maps to OPC UA built-in type at build time.</param>
/// <param name="IsArray">True when this attribute is a 1-D array.</param>
/// <param name="ArrayDim">Declared array length when <see cref="IsArray"/> is true; null otherwise.</param>
/// <param name="SecurityClass">Write-authorization tier for this attribute.</param>
/// <param name="IsHistorized">True when this attribute is expected to feed historian / HistoryRead.</param>
/// <param name="IsAlarm">
/// True when this attribute represents an alarm condition (Galaxy: has an
/// <c>AlarmExtension</c> primitive). The generic node-manager enriches the variable with an
/// OPC UA <c>AlarmConditionState</c> when true. Defaults to false so existing non-Galaxy
/// drivers aren't forced to flow a flag they don't produce.
/// </param>
/// <param name="WriteIdempotent">
/// True when a timed-out or failed write to this attribute is safe to replay. Per
/// <c>docs/v2/plan.md</c>, writes are NOT auto-retried by default
/// because replaying a pulse / alarm-ack / counter-increment / recipe-step advance can
/// duplicate field actions. Drivers flag only tags whose semantics make retry safe
/// (holding registers with level-set values, set-point writes to analog tags) — the
/// capability invoker respects this flag when deciding whether to apply Polly retry.
/// </param>
/// <param name="Source">
/// Discriminates which runtime subsystem owns this node's dispatch.
/// Defaults to <see cref="NodeSourceKind.Driver"/> so existing callers are unchanged.
/// </param>
/// <param name="VirtualTagId">
/// Set when <paramref name="Source"/> is <see cref="NodeSourceKind.Virtual"/> — stable
/// logical id the virtual-tag runtime addresses by. Null otherwise.
/// </param>
/// <param name="ScriptedAlarmId">
/// Set when <paramref name="Source"/> is <see cref="NodeSourceKind.ScriptedAlarm"/> —
/// stable logical id the ScriptedAlarmEngine addresses by. Null otherwise.
/// </param>
/// <param name="NativeDataType">
/// The driver's OWN type name for this attribute (e.g. <c>"Real"</c> for an
/// <c>AbCipDataType</c>, <c>"Int16"</c> for a <c>TwinCATDataType</c>) when the driver binds
/// by a driver-specific type enum in its <c>TagConfig</c>; null for a driver whose tag config
/// carries no type (OPC UA Client, Galaxy) or which takes the type from the wire (MQTT
/// Sparkplug births, MTConnect probe inference).
/// <para>
/// <b>It exists because <paramref name="DriverDataType"/> is lossy in exactly the direction a
/// browse-commit needs</b> (Gitea #536): <c>AbCipDataType.SInt</c>, <c>.Int</c> and <c>.DInt</c>
/// all map to <see cref="DriverDataType.Int32"/>, so a commit that reverse-mapped the
/// driver-agnostic type would bind a 16-bit INT as a 32-bit DINT. Nothing downstream of the
/// address-space build reads this — it is authoring metadata carried alongside the type the
/// node manager actually uses.
/// </para>
/// </param>
public sealed record DriverAttributeInfo(
string FullName,
DriverDataType DriverDataType,
bool IsArray,
uint? ArrayDim,
SecurityClassification SecurityClass,
bool IsHistorized,
bool IsAlarm = false,
bool WriteIdempotent = false,
NodeSourceKind Source = NodeSourceKind.Driver,
string? VirtualTagId = null,
string? ScriptedAlarmId = null,
string? NativeDataType = null);
/// <summary>
/// Discriminates which runtime subsystem owns this node's Read/Write/
/// Subscribe dispatch. <c>Driver</c> = a real IDriver capability surface;
/// <c>Virtual</c> = a Phase 7 <see cref="DriverAttributeInfo"/>.VirtualTagId'd tag
/// computed by the virtual-tag runtime; <c>ScriptedAlarm</c> = a scripted Part 9 alarm
/// materialized by the ScriptedAlarmEngine.
/// </summary>
public enum NodeSourceKind
{
Driver = 0,
Virtual = 1,
ScriptedAlarm = 2,
}