Joseph Doherty
88 lines
3.8 KiB
C#
88 lines
3.8 KiB
C#
using Microsoft.EntityFrameworkCore;
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using Microsoft.EntityFrameworkCore.Metadata.Builders;
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using ZB.MOM.WW.ScadaBridge.Commons.Entities.Notifications;
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namespace ZB.MOM.WW.ScadaBridge.ConfigurationDatabase.Configurations;
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/// <summary>
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/// EF Core mapping for the central notification outbox entity. <see cref="Notification.TypeData"/>
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/// and <see cref="Notification.ResolvedTargets"/> are intentionally left unconstrained
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/// (nullable nvarchar(max)) as they carry variable-length JSON / target snapshots.
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/// </summary>
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public class NotificationOutboxConfiguration : IEntityTypeConfiguration<Notification>
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{
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/// <summary>Configures the EF Core entity type mapping for <see cref="Notification"/>.</summary>
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/// <param name="builder">The entity type builder to configure.</param>
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public void Configure(EntityTypeBuilder<Notification> builder)
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{
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builder.HasKey(n => n.NotificationId);
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builder.Property(n => n.NotificationId).HasMaxLength(64);
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builder.Property(n => n.Type)
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.HasConversion<string>()
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.HasMaxLength(32)
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.IsRequired();
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builder.Property(n => n.Status)
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.HasConversion<string>()
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.HasMaxLength(32)
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.IsRequired();
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builder.Property(n => n.ListName)
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.HasMaxLength(200)
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.IsRequired();
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builder.Property(n => n.Subject)
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.HasMaxLength(1000)
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.IsRequired();
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builder.Property(n => n.Body).IsRequired();
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builder.Property(n => n.LastError).HasMaxLength(4000);
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builder.Property(n => n.SourceSiteId)
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.HasMaxLength(100)
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.IsRequired();
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builder.Property(n => n.SourceInstanceId).HasMaxLength(200);
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builder.Property(n => n.SourceScript).HasMaxLength(200);
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// SourceNode: node-local identifier of the
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// cluster member that produced the notification (e.g. "node-a", "central-a").
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// NULL is valid for rows that pre-date this feature. ASCII — varchar(64).
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// No index — KPIs are per-site on this table, not per-node; SourceNode is only
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// echoed onto NotifyDeliver audit rows for cross-row correlation.
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builder.Property(n => n.SourceNode)
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.HasColumnType("varchar(64)")
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.HasMaxLength(64)
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.IsUnicode(false);
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// OriginExecutionId: nullable uniqueidentifier carried from the
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// site so the dispatcher can echo it onto NotifyDeliver audit rows. No index —
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// it is never a query predicate on this table, only copied onto audit events.
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// OriginParentExecutionId: nullable uniqueidentifier carried from
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// the site — the routed run's parent ExecutionId — so the dispatcher can echo it
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// onto NotifyDeliver audit rows. No index — same rationale as OriginExecutionId.
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builder.HasIndex(n => new { n.Status, n.NextAttemptAt });
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builder.HasIndex(n => new { n.SourceSiteId, n.CreatedAt });
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// Covers ComputeKpisAsync's "DeliveredLastInterval" count
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// (Status == Delivered && DeliveredAt >= deliveredSince): filtered to just the
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// Delivered rows so the index stays small relative to the full table and the KPI
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// query can seek it directly instead of scanning every status (arch-review WP1.4).
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// Status is stored as its enum name (HasConversion<string>() above), so the filter
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// predicate matches on the literal 'Delivered', not the underlying int value.
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// No N'' prefix: the value is ASCII-only (fine on SQL Server's nvarchar column)
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// and the repository tests' SQLite provider rejects the T-SQL N'' national-string
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// literal syntax outright when EnsureCreated() runs this filter as DDL.
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builder.HasIndex(n => n.DeliveredAt)
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.HasDatabaseName("IX_Notifications_Delivered")
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.HasFilter("[Status] = 'Delivered'");
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}
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}
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