dohertj2/lmxopcua
1
0
Fork 0
Code Issues 2 Pull Requests 1 Actions Packages Projects Releases Wiki Activity

feat(host): F8b RoslynVirtualTagEvaluator — production virtual-tag eval

Browse Source 
RoslynVirtualTagEvaluator wraps Core.Scripting.ScriptEvaluator + Core
.VirtualTags.VirtualTagContext into a single-tag IVirtualTagEvaluator
adapter. Caches the compiled ScriptEvaluator per unique expression so
the second-and-onwards Evaluate is an in-process method call against the
dependency dictionary. Compile/sandbox/runtime errors all surface as
VirtualTagEvalResult.Failure rather than propagating exceptions through
the VirtualTagActor message loop.

Single-tag scope: cross-tag ctx.SetVirtualTag writes are dropped + logged
because fan-out between actors is owned by DependencyMuxActor. Cycle
detection + cascade ordering stay in Core.VirtualTags.VirtualTagEngine
where they belong (loaded fleet-wide); this adapter keeps the actor
message handler simple.

Host adds Core.Scripting + Core.VirtualTags project refs, plus a
TargetWarningsAsErrors NU1608 suppression — Microsoft.CodeAnalysis.CSharp
.Scripting 4.12.0 pins Common to 4.12.0 but ASP.NET Core transitively
brings Microsoft.CodeAnalysis.Common 5.0.0; the surface we use is stable
across the drift (verified by Core.Scripting.Tests).

Program.cs binds RoslynVirtualTagEvaluator → IVirtualTagEvaluator on
driver-role hosts, replacing the F8-default NullVirtualTagEvaluator so
VirtualTagActor evaluates real user scripts at runtime.

6 new adapter tests cover: simple expression sums, cache reuse across
calls, compile-error denial, runtime-throw denial, empty-expression
denial, post-dispose denial. Host.IntegrationTests now 10/10 green.

Closes #79. F9b + #107 next.
This commit is contained in:
Joseph Doherty
2026-05-26 10:55:56 -04:00
parent 607dc51dec
commit 219d10a22d
4 changed files with 225 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/Server/ZB.MOM.WW.OtOpcUa.Host/Program.cs
+9
View File
@@ -8,8 +8,10 @@ using ZB.MOM.WW.OtOpcUa.Cluster;
using ZB.MOM.WW.OtOpcUa.Configuration;
using ZB.MOM.WW.OtOpcUa.ControlPlane;
using ZB.MOM.WW.OtOpcUa.Commons.OpcUa;
using ZB.MOM.WW.OtOpcUa.Commons.Engines;
using ZB.MOM.WW.OtOpcUa.Host;
using ZB.MOM.WW.OtOpcUa.Host.Drivers;
using ZB.MOM.WW.OtOpcUa.Host.Engines;
using ZB.MOM.WW.OtOpcUa.Host.Health;
using ZB.MOM.WW.OtOpcUa.Host.Observability;
using ZB.MOM.WW.OtOpcUa.Host.OpcUa;
@@ -70,6 +72,13 @@ if (hasDriver)
// ILdapAuthService is registered by AddOtOpcUaAuth on admin nodes; on driver-only nodes
// it isn't, so we register the LDAP options + service unconditionally for driver hosts
// to keep parity. The LdapAdapter falls back to Deny on any backend error.
// F8b — production virtual-tag evaluator (Roslyn-compiled scripts cached per expression).
// Replaces the F8-default NullVirtualTagEvaluator so VirtualTagActor evaluates real user
// scripts at runtime.
builder.Services.AddSingleton<RoslynVirtualTagEvaluator>(sp =>
new RoslynVirtualTagEvaluator(sp.GetRequiredService<ILoggerFactory>().CreateLogger<RoslynVirtualTagEvaluator>()));
builder.Services.AddSingleton<IVirtualTagEvaluator>(sp => sp.GetRequiredService<RoslynVirtualTagEvaluator>());
builder.Services.AddOptions<LdapOptions>().Bind(builder.Configuration.GetSection("Ldap"));
builder.Services.AddSingleton<ILdapAuthService, LdapAuthService>();
builder.Services.AddSingleton<IOpcUaUserAuthenticator, LdapOpcUaUserAuthenticator>();