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Replace full address space rebuild with incremental subtree sync

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On Galaxy deploy changes, only the affected gobject subtrees are torn down
and rebuilt instead of destroying the entire address space. Unchanged nodes,
subscriptions, and alarm tracking continue uninterrupted.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Joseph Doherty
2026-03-26 15:23:11 -04:00
parent bfd360a6db
commit 3c326e2d45
6 changed files with 1047 additions and 46 deletions
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172
tests/ZB.MOM.WW.LmxOpcUa.Tests/Integration/IncrementalSyncTests.cs Normal file
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using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Opc.Ua;
using Shouldly;
using Xunit;
using ZB.MOM.WW.LmxOpcUa.Host.Domain;
using ZB.MOM.WW.LmxOpcUa.Tests.Helpers;
namespace ZB.MOM.WW.LmxOpcUa.Tests.Integration
{
public class IncrementalSyncTests
{
[Fact]
public async Task Sync_AddObject_NewNodeAppears()
{
var fixture = OpcUaServerFixture.WithFakeMxAccessClient();
await fixture.InitializeAsync();
try
{
using var client = new OpcUaTestClient();
await client.ConnectAsync(fixture.EndpointUrl);
// Verify initial state
var children = await client.BrowseAsync(client.MakeNodeId("TestArea"));
children.Select(c => c.Name).ShouldContain("TestMachine_001");
children.Select(c => c.Name).ShouldNotContain("NewObject");
// Add a new object
fixture.GalaxyRepository!.Hierarchy.Add(new GalaxyObjectInfo
{
GobjectId = 100, TagName = "NewObject_001", ContainedName = "NewObject",
BrowseName = "NewObject", ParentGobjectId = 2, IsArea = false
});
fixture.GalaxyRepository.Attributes.Add(new GalaxyAttributeInfo
{
GobjectId = 100, TagName = "NewObject_001", AttributeName = "Status",
FullTagReference = "NewObject_001.Status", MxDataType = 5
});
fixture.Service.TriggerRebuild();
await Task.Delay(1000);
// Reconnect in case session was disrupted during rebuild
using var client2 = new OpcUaTestClient();
await client2.ConnectAsync(fixture.EndpointUrl);
// New object should appear when browsing parent
children = await client2.BrowseAsync(client2.MakeNodeId("TestArea"));
children.Select(c => c.Name).ShouldContain("NewObject",
$"Browse returned: [{string.Join(", ", children.Select(c => c.Name))}]");
// Original object should still be there
children.Select(c => c.Name).ShouldContain("TestMachine_001");
}
finally { await fixture.DisposeAsync(); }
}
[Fact]
public async Task Sync_RemoveObject_NodeDisappears()
{
var fixture = OpcUaServerFixture.WithFakeMxAccessClient();
await fixture.InitializeAsync();
try
{
using var client = new OpcUaTestClient();
await client.ConnectAsync(fixture.EndpointUrl);
// Verify MESReceiver exists
var children = await client.BrowseAsync(client.MakeNodeId("TestMachine_001"));
children.Select(c => c.Name).ShouldContain("MESReceiver");
// Remove MESReceiver (gobject_id 5) and its attributes
fixture.GalaxyRepository!.Hierarchy.RemoveAll(h => h.GobjectId == 5);
fixture.GalaxyRepository.Attributes.RemoveAll(a => a.GobjectId == 5);
fixture.Service.TriggerRebuild();
await Task.Delay(500);
// MESReceiver should be gone
children = await client.BrowseAsync(client.MakeNodeId("TestMachine_001"));
children.Select(c => c.Name).ShouldNotContain("MESReceiver");
// DelmiaReceiver should still be there
children.Select(c => c.Name).ShouldContain("DelmiaReceiver");
}
finally { await fixture.DisposeAsync(); }
}
[Fact]
public async Task Sync_AddAttribute_NewVariableAppears()
{
var fixture = OpcUaServerFixture.WithFakeMxAccessClient();
await fixture.InitializeAsync();
try
{
using var client = new OpcUaTestClient();
await client.ConnectAsync(fixture.EndpointUrl);
// Add a new attribute to TestMachine_001
fixture.GalaxyRepository!.Attributes.Add(new GalaxyAttributeInfo
{
GobjectId = 3, TagName = "TestMachine_001", AttributeName = "NewAttr",
FullTagReference = "TestMachine_001.NewAttr", MxDataType = 5
});
fixture.Service.TriggerRebuild();
await Task.Delay(500);
var children = await client.BrowseAsync(client.MakeNodeId("TestMachine_001"));
children.Select(c => c.Name).ShouldContain("NewAttr");
children.Select(c => c.Name).ShouldContain("MachineID");
}
finally { await fixture.DisposeAsync(); }
}
[Fact]
public async Task Sync_UnchangedObject_SubscriptionSurvives()
{
var mxClient = new FakeMxAccessClient();
var fixture = OpcUaServerFixture.WithFakeMxAccessClient(mxClient: mxClient);
await fixture.InitializeAsync();
try
{
using var client = new OpcUaTestClient();
await client.ConnectAsync(fixture.EndpointUrl);
// Subscribe to MachineID on TestMachine_001
var nodeId = client.MakeNodeId("TestMachine_001.MachineID");
var (sub, item) = await client.SubscribeAsync(nodeId, 250);
await Task.Delay(500);
// Modify a DIFFERENT object (MESReceiver) — TestMachine_001 should be unaffected
var mesAttr = fixture.GalaxyRepository!.Attributes
.First(a => a.GobjectId == 5 && a.AttributeName == "MoveInBatchID");
mesAttr.SecurityClassification = 2; // change something
fixture.Service.TriggerRebuild();
await Task.Delay(500);
// Push a value change through MXAccess — subscription should still deliver
mxClient.SimulateDataChange("TestMachine_001.MachineID", Vtq.Good("UPDATED"));
await Task.Delay(1000);
var lastValue = (item.LastValue as MonitoredItemNotification)?.Value?.Value;
lastValue.ShouldBe("UPDATED");
}
finally { await fixture.DisposeAsync(); }
}
[Fact]
public async Task Sync_NoChanges_NothingHappens()
{
var fixture = OpcUaServerFixture.WithFakeMxAccessClient();
await fixture.InitializeAsync();
try
{
using var client = new OpcUaTestClient();
await client.ConnectAsync(fixture.EndpointUrl);
// Trigger rebuild with no changes
fixture.Service.TriggerRebuild();
await Task.Delay(500);
// Everything should still work
var children = await client.BrowseAsync(client.MakeNodeId("TestMachine_001"));
children.Select(c => c.Name).ShouldContain("MachineID");
}
finally { await fixture.DisposeAsync(); }
}
}
}