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feat(host): F9b RoslynScriptedAlarmEvaluator + #107 close engine DI
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Browse Source 
RoslynScriptedAlarmEvaluator mirrors F8b's pattern for alarm predicates:
caches a compiled ScriptEvaluator<AlarmPredicateContext, bool> per unique
predicate, runs against the dependency dictionary with a 2s timeout, and
turns every failure (compile error, sandbox violation, runtime throw,
ctx.SetVirtualTag attempt — predicates must be pure) into a
ScriptedAlarmEvalResult.Failure. ScriptedAlarmActor preserves prior state
on Failure so a broken predicate can't flip Active/Inactive spuriously.

Program.cs binds both evaluators on driver-role hosts — this fully
satisfies #107 ("bind production VirtualTagEngine + ScriptedAlarmEngine
adapters"). The two Roslyn adapters together replace the F8 + F9 Null
defaults, so VirtualTagActor + ScriptedAlarmActor now run real user
scripts in production.

7 new adapter tests cover: predicate true → Active, predicate false →
Inactive, cache reuse, compile-error denial, write-attempt denial,
empty-predicate denial, post-dispose denial. Host.IntegrationTests now
17/17 green.

Closes #80 + #107. All major v2 follow-ups are now complete; only
cleanup + observability polish remains.
This commit is contained in:
Joseph Doherty
2026-05-26 10:58:04 -04:00
parent 219d10a22d
commit 05a0596fb1
4 changed files with 216 additions and 0 deletions
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src/Server/ZB.MOM.WW.OtOpcUa.Host/ZB.MOM.WW.OtOpcUa.Host.csproj
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@@ -32,6 +32,7 @@
<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Core\ZB.MOM.WW.OtOpcUa.Core.csproj"/>
<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Core.Scripting\ZB.MOM.WW.OtOpcUa.Core.Scripting.csproj"/>
<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Core.VirtualTags\ZB.MOM.WW.OtOpcUa.Core.VirtualTags.csproj"/>
<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Core.ScriptedAlarms\ZB.MOM.WW.OtOpcUa.Core.ScriptedAlarms.csproj"/>
<ProjectReference Include="..\ZB.MOM.WW.OtOpcUa.Security\ZB.MOM.WW.OtOpcUa.Security.csproj"/>
<ProjectReference Include="..\ZB.MOM.WW.OtOpcUa.ControlPlane\ZB.MOM.WW.OtOpcUa.ControlPlane.csproj"/>
<ProjectReference Include="..\ZB.MOM.WW.OtOpcUa.Runtime\ZB.MOM.WW.OtOpcUa.Runtime.csproj"/>