49 lines
2.2 KiB
C#
49 lines
2.2 KiB
C#
using ZB.MOM.WW.OtOpcUa.Configuration.Validation;
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namespace ZB.MOM.WW.OtOpcUa.Configuration.Apply;
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public sealed class GenerationApplier(ApplyCallbacks callbacks) : IGenerationApplier
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{
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public async Task<ApplyResult> ApplyAsync(DraftSnapshot? from, DraftSnapshot to, CancellationToken ct)
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{
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var diff = GenerationDiffer.Compute(from, to);
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var errors = new List<string>();
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// Removed first, then Added/Modified — prevents FK dangling while cascades settle.
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await ApplyPass(diff.Tags, ChangeKind.Removed, callbacks.OnTag, errors, ct);
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await ApplyPass(diff.PollGroups, ChangeKind.Removed, callbacks.OnPollGroup, errors, ct);
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await ApplyPass(diff.Equipment, ChangeKind.Removed, callbacks.OnEquipment, errors, ct);
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await ApplyPass(diff.Devices, ChangeKind.Removed, callbacks.OnDevice, errors, ct);
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await ApplyPass(diff.Drivers, ChangeKind.Removed, callbacks.OnDriver, errors, ct);
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await ApplyPass(diff.Namespaces, ChangeKind.Removed, callbacks.OnNamespace, errors, ct);
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foreach (var kind in new[] { ChangeKind.Added, ChangeKind.Modified })
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{
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await ApplyPass(diff.Namespaces, kind, callbacks.OnNamespace, errors, ct);
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await ApplyPass(diff.Drivers, kind, callbacks.OnDriver, errors, ct);
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await ApplyPass(diff.Devices, kind, callbacks.OnDevice, errors, ct);
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await ApplyPass(diff.Equipment, kind, callbacks.OnEquipment, errors, ct);
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await ApplyPass(diff.PollGroups, kind, callbacks.OnPollGroup, errors, ct);
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await ApplyPass(diff.Tags, kind, callbacks.OnTag, errors, ct);
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}
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return errors.Count == 0 ? ApplyResult.Ok(diff) : ApplyResult.Fail(diff, errors);
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}
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private static async Task ApplyPass<T>(
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IReadOnlyList<EntityChange<T>> changes,
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ChangeKind kind,
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Func<EntityChange<T>, CancellationToken, Task>? callback,
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List<string> errors,
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CancellationToken ct)
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{
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if (callback is null) return;
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foreach (var change in changes.Where(c => c.Kind == kind))
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{
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try { await callback(change, ct); }
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catch (Exception ex) { errors.Add($"{typeof(T).Name} {change.Kind} '{change.LogicalId}': {ex.Message}"); }
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}
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}
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}
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