refactor(galaxy): migrate to ZB.MOM.WW.MxGateway.* nupkg packages

Imports the freshly-rebuilt ZB.MOM.WW.MxGateway.Client + ZB.MOM.WW.MxGateway.Contracts
nupkgs (0.1.0) from /tmp/mxgw-dist. Replaces the vendored libs/ DLLs and the
pre-restructure MxGateway.* namespaces across the runtime Galaxy driver,
Galaxy.Browser, and their tests.

Key changes:
- nuget-packages/ added as a local feed via NuGet.config; .gitignore exempts it
  from the *.nupkg rule so the packages are tracked
- Directory.Packages.props pins both packages at 0.1.0
- 4 csprojs swap <Reference HintPath="libs/...dll"/> for <PackageReference/>
- 36 .cs files renamed `using MxGateway.*` -> `using ZB.MOM.WW.MxGateway.*`
- libs/ removed (vendored DLLs + README.md)

GalaxyBrowseSession rewritten around the new lazy API:
- RootAsync calls GalaxyRepositoryClient.BrowseAsync (returns LazyBrowseNodes)
  and caches them by TagName instead of bulk-fetching the whole hierarchy
- ExpandAsync looks up the cached LazyBrowseNode and calls its ExpandAsync,
  giving true one-wire-call-per-click instead of in-memory parent/child scan
- _byGobjectId + _hasChildrenSet dropped (LazyBrowseNode carries HasChildrenHint)
- AttributesAsync unchanged (already uses DiscoverHierarchyAsync MaxDepth=0)

Tests: Galaxy.Tests 245/245, Galaxy.Browser.Tests 10/10, AdminUI.Tests 66/66.
Pre-existing 12 solution errors unchanged (test sinks + Cli XML comments).

.gitignore

@@ -21,6 +21,8 @@ desktop.ini
 # NuGet
 packages/
 *.nupkg
+# … but DO track repo-local feed for mxaccessgw client (not yet on public nuget.org).
+!nuget-packages/*.nupkg
 
 # Certificates
 *.pfx

Directory.Packages.props

@@ -97,5 +97,7 @@
     <PackageVersion Include="xunit" Version="2.9.2" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.0.2" />
     <PackageVersion Include="xunit.v3" Version="1.1.0" />
+    <PackageVersion Include="ZB.MOM.WW.MxGateway.Client" Version="0.1.0" />
+    <PackageVersion Include="ZB.MOM.WW.MxGateway.Contracts" Version="0.1.0" />
   </ItemGroup>
 </Project>

NuGet.config

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
+    <add key="local-mxgw" value="./nuget-packages" />
+  </packageSources>
+</configuration>

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browser/GalaxyBrowseSession.cs

@@ -1,29 +1,26 @@
 using System.Collections.Concurrent;
-using MxGateway.Client;
+using ZB.MOM.WW.MxGateway.Client;
-using MxGateway.Contracts.Proto.Galaxy;
+using ZB.MOM.WW.MxGateway.Contracts.Proto.Galaxy;
 using ZB.MOM.WW.OtOpcUa.Commons.Browsing;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browser;
 
 /// <summary>
-///     Galaxy browse over the gateway's <see cref="GalaxyRepositoryClient"/>.
+///     Lazy Galaxy browse over <see cref="GalaxyRepositoryClient.BrowseAsync"/>.
-///     The gateway returns the deployed hierarchy as a flat <see cref="GalaxyObject"/>
+///     <see cref="RootAsync"/> returns the top-level <see cref="LazyBrowseNode"/>s
-///     list, so this session fetches the full set once on <see cref="RootAsync"/>,
+///     directly from the gateway; <see cref="ExpandAsync"/> fetches the direct children
-///     caches it by <c>TagName</c> (and <c>GobjectId</c> for parent lookup), and serves
+///     of a previously-handed-out node via <see cref="LazyBrowseNode.ExpandAsync"/>
-///     subsequent <see cref="ExpandAsync"/> calls in-memory. Attribute fetches are
+///     (one wire call per click, paginated internally by the client). Attribute fetches
-///     per-object via <c>DiscoverHierarchyAsync(MaxDepth=0, IncludeAttributes=true)</c>.
+///     are per-object via <c>DiscoverHierarchyAsync(MaxDepth=0, IncludeAttributes=true)</c>.
-///     Owns the supplied <see cref="GalaxyRepositoryClient"/> and disposes it
+///     Owns the supplied <see cref="GalaxyRepositoryClient"/> and disposes it best-effort.
-///     best-effort. (Browse does not need an <c>MxGatewaySession</c> — that's only
-///     required for live subscribe/write paths handled by the runtime driver.)
 /// </summary>
 internal sealed class GalaxyBrowseSession : IBrowseSession
 {
     private readonly GalaxyRepositoryClient _client;
-    private readonly ConcurrentDictionary<string, GalaxyObject> _byTagName = new(StringComparer.Ordinal);
+    private readonly ConcurrentDictionary<string, LazyBrowseNode> _byTagName = new(StringComparer.Ordinal);
-    private readonly ConcurrentDictionary<int, GalaxyObject> _byGobjectId = new();
-    private volatile bool _disposed;
     private readonly SemaphoreSlim _rootGate = new(1, 1);
-    private HashSet<int> _hasChildrenSet = new();
+    private volatile bool _disposed;
+    private IReadOnlyList<LazyBrowseNode>? _roots;
 
     /// <summary>Opaque token identifying this session in the AdminUI registry.</summary>
     public Guid Token { get; } = Guid.NewGuid();
@@ -33,19 +30,20 @@ internal sealed class GalaxyBrowseSession : IBrowseSession
 
     /// <summary>
     ///     Initializes a new session wrapping a connected repository client. The factory
-    ///     in <c>GalaxyDriverBrowser</c> (Task 9) constructs the client via
+    ///     in <c>GalaxyDriverBrowser</c> constructs the client via
     ///     <see cref="GalaxyRepositoryClient.Create"/> and hands it off here for the
     ///     session's lifetime.
     /// </summary>
-    /// <param name="client">Galaxy repository client to query for hierarchy and attributes.</param>
+    /// <param name="client">Galaxy repository client to query for browse and attributes.</param>
     internal GalaxyBrowseSession(GalaxyRepositoryClient client)
     {
         _client = client ?? throw new ArgumentNullException(nameof(client));
     }
 
     /// <summary>
-    ///     Fetches the full Galaxy hierarchy from the gateway, populates the cache,
+    ///     Fetches the top-level <see cref="LazyBrowseNode"/>s from the gateway and
-    ///     and returns the top-level objects (those with no parent in the deployed model).
+    ///     returns them as <see cref="BrowseNode"/>s. Result is cached; a second call
+    ///     returns the cached roots without a re-fetch.
     /// </summary>
     public async Task<IReadOnlyList<BrowseNode>> RootAsync(CancellationToken cancellationToken)
     {
@@ -53,29 +51,11 @@ internal sealed class GalaxyBrowseSession : IBrowseSession
         await _rootGate.WaitAsync(cancellationToken).ConfigureAwait(false);
         try
         {
-            var all = await _client.DiscoverHierarchyAsync(
+            _roots ??= await _client.BrowseAsync(new BrowseChildrenOptions(), cancellationToken)
-                new DiscoverHierarchyOptions { IncludeAttributes = false }, cancellationToken)
                 .ConfigureAwait(false);
 
-            // Populate caches so later ExpandAsync calls can resolve children in-memory.
-            foreach (var obj in all)
-            {
-                _byTagName[obj.TagName] = obj;
-                _byGobjectId[obj.GobjectId] = obj;
-            }
-
-            // Precompute the set of GobjectIds that appear as a parent — used by
-            // Project to compute HasChildrenHint in O(1) instead of O(n²).
-            _hasChildrenSet = new HashSet<int>(_byGobjectId.Values.Select(o => o.ParentGobjectId));
-
-            // Roots are objects whose parent isn't part of the returned set (typically
-            // ParentGobjectId == 0 for WinPlatforms / top-level Areas).
-            var roots = all
-                .Where(o => o.ParentGobjectId == 0 || !_byGobjectId.ContainsKey(o.ParentGobjectId))
-                .ToList();
-
             LastUsedUtc = DateTime.UtcNow;
-            return Project(roots);
+            return Project(_roots);
         }
         finally
         {
@@ -84,27 +64,24 @@ internal sealed class GalaxyBrowseSession : IBrowseSession
     }
 
     /// <summary>
-    ///     Returns the direct children of the cached Galaxy object identified by
+    ///     Fetches the direct children of the cached node identified by
-    ///     <paramref name="nodeId"/> (the object's <c>TagName</c>). Throws
+    ///     <paramref name="nodeId"/> (the object's <c>TagName</c>) via
-    ///     <see cref="ArgumentException"/> if the tag hasn't been handed out by a
+    ///     <see cref="LazyBrowseNode.ExpandAsync"/>. Throws <see cref="ArgumentException"/>
-    ///     prior Root/Expand call (i.e. it's not in the cache).
+    ///     if the tag hasn't been handed out by a prior Root/Expand call.
     /// </summary>
-    public Task<IReadOnlyList<BrowseNode>> ExpandAsync(string nodeId, CancellationToken cancellationToken)
+    public async Task<IReadOnlyList<BrowseNode>> ExpandAsync(string nodeId, CancellationToken cancellationToken)
     {
         ObjectDisposedException.ThrowIf(_disposed, this);
-        if (!_byTagName.TryGetValue(nodeId, out var parent))
+        if (!_byTagName.TryGetValue(nodeId, out var node))
         {
             throw new ArgumentException(
                 $"Galaxy object '{nodeId}' is not in the current browse-session cache. " +
                 "Re-open the browser or expand its parent first.", nameof(nodeId));
         }
 
-        var children = _byGobjectId.Values
+        await node.ExpandAsync(cancellationToken).ConfigureAwait(false);
-            .Where(o => o.ParentGobjectId == parent.GobjectId)
-            .ToList();
-
         LastUsedUtc = DateTime.UtcNow;
-        return Task.FromResult(Project(children));
+        return Project(node.Children);
     }
 
     /// <summary>
@@ -143,29 +120,25 @@ internal sealed class GalaxyBrowseSession : IBrowseSession
     }
 
     /// <summary>
-    ///     Projects <see cref="GalaxyObject"/>s to <see cref="BrowseNode"/>s, ensuring
+    ///     Projects <see cref="LazyBrowseNode"/>s to <see cref="BrowseNode"/>s, caching
-    ///     every projected object is also written to the by-tag cache so later
+    ///     each by <c>TagName</c> so a subsequent <see cref="ExpandAsync"/> can locate
-    ///     <see cref="ExpandAsync"/> calls can find it. Galaxy nodes are always
+    ///     it. Galaxy nodes are always <see cref="BrowseNodeKind.Folder"/> — leaves only
-    ///     <see cref="BrowseNodeKind.Folder"/> — leaves only appear in the attribute
+    ///     appear in the attribute side-panel.
-    ///     side-panel, never in the tree.
     /// </summary>
-    private IReadOnlyList<BrowseNode> Project(IReadOnlyList<GalaxyObject> nodes)
+    private IReadOnlyList<BrowseNode> Project(IReadOnlyList<LazyBrowseNode> nodes)
     {
         var result = new List<BrowseNode>(nodes.Count);
-        foreach (var obj in nodes)
+        foreach (var n in nodes)
         {
-            // Belt-and-braces: ensure the cache holds every node we hand back so
+            _byTagName[n.Object.TagName] = n;
-            // ExpandAsync can resolve it on the next round-trip.
+            var displayName = !string.IsNullOrEmpty(n.Object.ContainedName)
-            _byTagName[obj.TagName] = obj;
+                ? n.Object.ContainedName
-            _byGobjectId[obj.GobjectId] = obj;
+                : n.Object.TagName;
-
-            var displayName = !string.IsNullOrEmpty(obj.ContainedName) ? obj.ContainedName : obj.TagName;
-            var hasChildrenHint = _hasChildrenSet.Contains(obj.GobjectId);
             result.Add(new BrowseNode(
-                NodeId: obj.TagName,
+                NodeId: n.Object.TagName,
                 DisplayName: displayName,
                 Kind: BrowseNodeKind.Folder,
-                HasChildrenHint: hasChildrenHint));
+                HasChildrenHint: n.HasChildrenHint));
         }
         return result;
     }

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browser/GalaxyDriverBrowser.cs

@@ -2,7 +2,7 @@ using System.Text.Json;
 using System.Text.Json.Serialization;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
-using MxGateway.Client;
+using ZB.MOM.WW.MxGateway.Client;
 using ZB.MOM.WW.OtOpcUa.Commons.Browsing;
 using ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Config;
 

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browser/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browser.csproj

@@ -13,23 +13,8 @@
         <InternalsVisibleTo Include="ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browser.Tests" />
     </ItemGroup>
     <ItemGroup>
-        <!-- Vendored mxaccessgw .NET client — same DLLs as Driver.Galaxy.
+        <PackageReference Include="ZB.MOM.WW.MxGateway.Client" />
-             See Driver.Galaxy/libs/README.md for the unwinding plan. -->
+        <PackageReference Include="ZB.MOM.WW.MxGateway.Contracts" />
-        <Reference Include="MxGateway.Client">
-            <HintPath>..\ZB.MOM.WW.OtOpcUa.Driver.Galaxy\libs\MxGateway.Client.dll</HintPath>
-            <Private>true</Private>
-        </Reference>
-        <Reference Include="MxGateway.Contracts">
-            <HintPath>..\ZB.MOM.WW.OtOpcUa.Driver.Galaxy\libs\MxGateway.Contracts.dll</HintPath>
-            <Private>true</Private>
-        </Reference>
-    </ItemGroup>
-    <ItemGroup>
-        <!-- Transitive deps of the vendored MxGateway.Client.dll -->
-        <PackageReference Include="Google.Protobuf" />
-        <PackageReference Include="Grpc.Core.Api" />
-        <PackageReference Include="Grpc.Net.Client" />
         <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" />
-        <PackageReference Include="Polly.Core" />
     </ItemGroup>
 </Project>

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/DeployWatcher.cs

@@ -1,6 +1,6 @@
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
-using MxGateway.Contracts.Proto.Galaxy;
+using ZB.MOM.WW.MxGateway.Contracts.Proto.Galaxy;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browse;

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/GalaxyDiscoverer.cs

@@ -1,4 +1,4 @@
-using MxGateway.Contracts.Proto.Galaxy;
+using ZB.MOM.WW.MxGateway.Contracts.Proto.Galaxy;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browse;

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/GatewayGalaxyDeployWatchSource.cs

@@ -1,5 +1,5 @@
-using MxGateway.Client;
+using ZB.MOM.WW.MxGateway.Client;
-using MxGateway.Contracts.Proto.Galaxy;
+using ZB.MOM.WW.MxGateway.Contracts.Proto.Galaxy;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browse;
 

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/GatewayGalaxyHierarchySource.cs

@@ -1,5 +1,5 @@
-using MxGateway.Client;
+using ZB.MOM.WW.MxGateway.Client;
-using MxGateway.Contracts.Proto.Galaxy;
+using ZB.MOM.WW.MxGateway.Contracts.Proto.Galaxy;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browse;
 

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/IGalaxyDeployWatchSource.cs

@@ -1,4 +1,4 @@
-using MxGateway.Contracts.Proto.Galaxy;
+using ZB.MOM.WW.MxGateway.Contracts.Proto.Galaxy;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browse;
 

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/IGalaxyHierarchySource.cs

@@ -1,4 +1,4 @@
-using MxGateway.Contracts.Proto.Galaxy;
+using ZB.MOM.WW.MxGateway.Contracts.Proto.Galaxy;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browse;
 

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Browse/TracedGalaxyHierarchySource.cs

@@ -1,4 +1,4 @@
-using MxGateway.Contracts.Proto.Galaxy;
+using ZB.MOM.WW.MxGateway.Contracts.Proto.Galaxy;
 using ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browse;

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/GalaxyDriver.cs

@@ -1,7 +1,7 @@
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
-using MxGateway.Client;
+using ZB.MOM.WW.MxGateway.Client;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
 using ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browse;
 using ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Config;
@@ -528,7 +528,7 @@ public sealed class GalaxyDriver
         // If discovery hasn't run yet, build the client here so the watcher has a target.
         // Driver.Galaxy-009 fix: guard with ??= so if BuildDefaultHierarchySource later runs
         // it reuses this client rather than overwriting the field and leaking the first instance.
-        _ownedRepositoryClient ??= MxGateway.Client.GalaxyRepositoryClient.Create(
+        _ownedRepositoryClient ??= ZB.MOM.WW.MxGateway.Client.GalaxyRepositoryClient.Create(
             BuildClientOptions(_options.Gateway));
 
         var source = new GatewayGalaxyDeployWatchSource(_ownedRepositoryClient);

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Runtime/EventPump.cs

@@ -2,7 +2,7 @@ using System.Diagnostics.Metrics;
 using System.Threading.Channels;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Runtime/GalaxyMxSession.cs

@@ -1,6 +1,6 @@
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
-using MxGateway.Client;
+using ZB.MOM.WW.MxGateway.Client;
 using ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Config;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Runtime/GatewayGalaxyAlarmAcknowledger.cs

@@ -1,6 +1,6 @@
 using Microsoft.Extensions.Logging;
-using MxGateway.Client;
+using ZB.MOM.WW.MxGateway.Client;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;
 

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Runtime/GatewayGalaxyAlarmFeed.cs

@@ -1,7 +1,7 @@
 using System.Diagnostics.Metrics;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;
 

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Runtime/GatewayGalaxyDataWriter.cs

@@ -1,8 +1,8 @@
 using System.Collections.Concurrent;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
-using MxGateway.Client;
+using ZB.MOM.WW.MxGateway.Client;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Runtime/GatewayGalaxySubscriber.cs

@@ -1,5 +1,5 @@
-using MxGateway.Client;
+using ZB.MOM.WW.MxGateway.Client;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 // Use the generated nested status enum for the SetBufferedUpdateInterval reply check.
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;
@@ -62,7 +62,7 @@ public sealed class GatewayGalaxySubscriber : IGalaxySubscriber
     ///     applied value and skip redundant calls.
     /// </summary>
     private async Task EnsureSessionIntervalAsync(
-        MxGateway.Client.MxGatewaySession session, int serverHandle, int intervalMs, CancellationToken cancellationToken)
+        ZB.MOM.WW.MxGateway.Client.MxGatewaySession session, int serverHandle, int intervalMs, CancellationToken cancellationToken)
     {
         lock (_intervalLock)
         {

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Runtime/IGalaxySubscriber.cs

@@ -1,4 +1,4 @@
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;
 

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Runtime/MxValueDecoder.cs

@@ -1,5 +1,5 @@
 using Google.Protobuf.WellKnownTypes;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;
 

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Runtime/MxValueEncoder.cs

@@ -1,5 +1,5 @@
 using Google.Protobuf.WellKnownTypes;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;
 

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Runtime/StatusCodeMap.cs

@@ -1,6 +1,6 @@
 using Microsoft.Extensions.Logging;
-using MxGateway.Client;
+using ZB.MOM.WW.MxGateway.Client;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;
 

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Runtime/TracedGalaxySubscriber.cs

@@ -1,5 +1,5 @@
 using System.Runtime.CompilerServices;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;
 

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.csproj

@@ -19,34 +19,8 @@
     </ItemGroup>
 
     <ItemGroup>
-        <!-- Vendored mxaccessgw .NET client. Originally consumed via path-based
+        <PackageReference Include="ZB.MOM.WW.MxGateway.Client" />
-             ProjectReference to the sibling repo, but the sibling repo restructured
+        <PackageReference Include="ZB.MOM.WW.MxGateway.Contracts" />
-             and the MxGateway.Client.csproj path no longer exists. The DLLs in
-             libs/ are the last known-good build (May 2026); they reference proto
-             types from MxGateway.Contracts.dll using the pre-restructure namespace
-             (MxGateway.Contracts.Proto). See libs/README.md for the unwinding plan
-             once the sibling repo restores a client library or we migrate to the
-             new ZB.MOM.WW.MxGateway.Contracts.Proto namespace. -->
-        <Reference Include="MxGateway.Client">
-            <HintPath>libs\MxGateway.Client.dll</HintPath>
-            <Private>true</Private>
-        </Reference>
-        <Reference Include="MxGateway.Contracts">
-            <HintPath>libs\MxGateway.Contracts.dll</HintPath>
-            <Private>true</Private>
-        </Reference>
-    </ItemGroup>
-
-    <ItemGroup>
-        <!-- Transitive deps the vendored MxGateway.Client.dll was actually built
-             against (verified by reflecting GetReferencedAssemblies on the DLL —
-             see libs/README.md). Versions align with the sibling mxaccessgw repo's
-             current Server / Worker projects so binary-compat stays close to what
-             the team uses elsewhere. Pre-Driver.Galaxy-016 the csproj declared
-             `Polly` (the v7 API) instead of `Polly.Core` (the v8 API the DLL was
-             built against) — a package-name mistake, not just a version skew —
-             which would surface as a runtime MissingMethodException the first
-             time the client's retry pipeline ran. -->
         <PackageReference Include="Google.Protobuf" />
         <PackageReference Include="Grpc.Core.Api" />
         <PackageReference Include="Grpc.Net.Client" />

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/libs/README.md

@@ -1,101 +0,0 @@
-# Vendored MxGateway client DLLs
-
-This directory holds binary copies of `MxGateway.Client.dll` and
-`MxGateway.Contracts.dll` from the sibling `mxaccessgw` repo's last known-good
-build (May 2026). The DLLs are referenced from the driver's csproj as
-`<Reference HintPath="…" />` items rather than `ProjectReference`.
-
-## Provenance
-
-Both DLLs are built from this team's own `mxaccessgw` source tree — they are
-not third-party binaries. The build commit + checksums below are recorded so
-future readers can verify the artefacts match the expected source without
-needing to ask the original author.
-
-| File | Source commit | SHA-256 |
-|---|---|---|
-| `MxGateway.Client.dll` | `dd7ca1634e2d2b8a866c81f0009bf87ee9427750` (mxaccessgw repo, pre-restructure) | `3507f770adc8c1b27b2fc4645079c6e4e02d5c65b9545c12d637cd2a080a00bd` |
-| `MxGateway.Contracts.dll` | `dd7ca1634e2d2b8a866c81f0009bf87ee9427750` (mxaccessgw repo, pre-restructure) | `437dc6cb6994c7c4d858c82f69af890732c7ffbfa0463fbd8a63ce7930d251b4` |
-
-The build commit is the same for both DLLs and is embedded as
-`AssemblyInformationalVersion` inside each binary — re-verify by running:
-`ilspycmd <dll> | grep AssemblyInformationalVersion`.
-
-To re-verify the checksums (e.g. after a clone):
-```bash
-sha256sum libs/MxGateway.Client.dll libs/MxGateway.Contracts.dll
-```
-
-If either SHA-256 or the embedded source commit no longer matches what's
-listed above, the artefact has been replaced — verify before trusting.
-
-## Why vendored
-
-The sibling `mxaccessgw` repo restructured: the `clients/dotnet/MxGateway.Client`
-project the driver previously referenced via path-based `ProjectReference` no
-longer exists, and the proto contracts moved from the `MxGateway.Contracts.Proto`
-namespace to `ZB.MOM.WW.MxGateway.Contracts.Proto`. The driver's source still
-expects the pre-restructure namespace, so re-pointing at the new contracts would
-require a global namespace rename across ~19 driver files PLUS reimplementing
-the `MxGatewayClient` / `MxGatewaySession` / `GalaxyRepositoryClient` types the
-old client library provided (the sibling repo dropped the client library
-entirely, keeping only the contracts).
-
-Vendoring the binaries unblocked the build in minutes instead of hours, freezes
-the gateway contract surface at a known-good version, and preserves the option
-to migrate properly later without an emergency rewrite.
-
-## What's vendored
-
-| File | Built against |
-|---|---|
-| `MxGateway.Client.dll` | net10.0, references `MxGateway.Contracts.dll` |
-| `MxGateway.Contracts.dll` | net10.0, proto namespace `MxGateway.Contracts.Proto[.Galaxy]` |
-
-The NuGet packages the vendored DLLs reference (verified by reflecting
-`Assembly.GetReferencedAssemblies()` against `MxGateway.Client.dll`) are
-declared as direct `PackageReference` in the driver csproj — when the dropped
-`ProjectReference` was in place those packages were transitively provided;
-with binary references the consumer must declare them explicitly:
-
-| Package | Reason |
-|---|---|
-| `Google.Protobuf` 3.34.1 | Proto message types in `MxGateway.Contracts.dll` |
-| `Grpc.Core.Api` 2.76.0 | Base gRPC client types in `MxGateway.Client.dll` |
-| `Grpc.Net.Client` 2.76.0 | HTTP/2 transport used by `MxGatewayClient` |
-| `Microsoft.Extensions.Logging.Abstractions` 10.0.7 | `ILogger` used by the client |
-| `Polly.Core` 8.6.6 | Retry pipeline used by `MxGatewayClient` |
-
-Versions match the sibling mxaccessgw repo's current Server / Worker
-projects (`ZB.MOM.WW.MxGateway.Server.csproj`,
-`ZB.MOM.WW.MxGateway.Worker.csproj`) so the runtime versions stay close to
-what the gateway team uses. The pre-Driver.Galaxy-016 declarations were
-incorrect — most visibly `Polly 8.5.2` was declared where the DLL actually
-needs `Polly.Core` (a different package: `Polly` v7 is the older fluent API;
-`Polly.Core` v8 is the modern resilience-pipeline API the gateway client was
-built against). A `Polly` reference would have failed at runtime with
-`MissingMethodException` the first time a retry pipeline ran.
-
-## Decompiled-source archive
-
-The vendored DLLs are byte-for-byte the build output. The full source can be
-recovered with `ilspycmd MxGateway.Client.dll > MxGateway.Client.cs` if a code
-review or audit needs it.
-
-## How to unwind
-
-Either path closes the vendored-binary debt:
-
-1. **Sibling repo restores `MxGateway.Client.csproj`** (or publishes a NuGet
-   package). Switch the csproj back to a `ProjectReference` / `PackageReference`,
-   delete this directory.
-2. **Driver migrates to the new `ZB.MOM.WW.MxGateway.Contracts.Proto`
-   namespace.** Global namespace rename across the ~19 consuming source files,
-   plus re-implementing `MxGatewayClient` / `MxGatewaySession` /
-   `GalaxyRepositoryClient` (≈2,200 LoC of behavioural client code) either
-   inlined into this driver or as a fresh sibling library. Delete this
-   directory.
-
-Either way: when unwinding, also drop the five `PackageReference` lines added
-to the csproj alongside the `<Reference>` items — the new ProjectReference /
-PackageReference will provide them transitively again.

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browser.Tests/GalaxyBrowseSessionTests.cs

@@ -1,4 +1,4 @@
-using MxGateway.Client;
+using ZB.MOM.WW.MxGateway.Client;
 using Shouldly;
 using Xunit;
 
@@ -13,8 +13,8 @@ namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browser.Tests;
 ///         <see cref="GalaxyRepositoryClient"/>, which only ships an <c>internal</c>
 ///         transport seam (<c>IGalaxyRepositoryClientTransport</c>) and an <c>internal</c>
 ///         constructor — both keyed via <c>InternalsVisibleTo</c> on the vendored
-///         <c>MxGateway.Client</c> assembly, and only granted to that repo's own
+///         <c>ZB.MOM.WW.MxGateway.Client</c> assembly, and only granted to that repo's own
-///         <c>MxGateway.Client.Tests</c>. We can't substitute a fake transport from
+///         <c>ZB.MOM.WW.MxGateway.Client.Tests</c>. We can't substitute a fake transport from
 ///         here without changing the upstream repo, and the public <c>Create</c>
 ///         factory always opens a real gRPC channel. So in-memory traversal coverage
 ///         (RootAsync / ExpandAsync / AttributesAsync, including the SecurityClass

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browser.Tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browser.Tests.csproj

@@ -26,21 +26,8 @@
     </ItemGroup>
 
     <ItemGroup>
-        <!-- Vendored mxaccessgw client + contracts DLLs. The Browser project under test
+        <PackageReference Include="ZB.MOM.WW.MxGateway.Client" />
-             holds the same binary references; the explicit duplicates here let us
+        <PackageReference Include="ZB.MOM.WW.MxGateway.Contracts" />
-             construct a GalaxyRepositoryClient against an unreachable endpoint for
-             dispose-idempotency coverage, and make MxGateway types visible to the
-             test assembly. See
-             ..\..\..\src\Drivers\ZB.MOM.WW.OtOpcUa.Driver.Galaxy\libs\README.md for
-             the unwinding plan. -->
-        <Reference Include="MxGateway.Client">
-            <HintPath>..\..\..\src\Drivers\ZB.MOM.WW.OtOpcUa.Driver.Galaxy\libs\MxGateway.Client.dll</HintPath>
-            <Private>true</Private>
-        </Reference>
-        <Reference Include="MxGateway.Contracts">
-            <HintPath>..\..\..\src\Drivers\ZB.MOM.WW.OtOpcUa.Driver.Galaxy\libs\MxGateway.Contracts.dll</HintPath>
-            <Private>true</Private>
-        </Reference>
     </ItemGroup>
 
 </Project>

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/Browse/DeployWatcherTests.cs

@@ -1,7 +1,7 @@
 using System.Runtime.CompilerServices;
 using System.Threading.Channels;
 using Google.Protobuf.WellKnownTypes;
-using MxGateway.Contracts.Proto.Galaxy;
+using ZB.MOM.WW.MxGateway.Contracts.Proto.Galaxy;
 using Shouldly;
 using Xunit;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/Browse/GalaxyDiscovererTests.cs

@@ -1,4 +1,4 @@
-using MxGateway.Contracts.Proto.Galaxy;
+using ZB.MOM.WW.MxGateway.Contracts.Proto.Galaxy;
 using Shouldly;
 using Xunit;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/GalaxyDriverFactoryTests.cs

@@ -1,4 +1,4 @@
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 using Shouldly;
 using Xunit;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/GalaxyDriverInfrastructureTests.cs

@@ -1,6 +1,6 @@
 using System.Threading.Channels;
 using Google.Protobuf.WellKnownTypes;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 using Shouldly;
 using Xunit;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/Health/PerPlatformProbeWatcherTests.cs

@@ -1,4 +1,4 @@
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 using Shouldly;
 using Xunit;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/Runtime/EventPumpBoundedChannelTests.cs

@@ -1,7 +1,7 @@
 using System.Diagnostics.Metrics;
 using System.Threading.Channels;
 using Google.Protobuf.WellKnownTypes;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 using Shouldly;
 using Xunit;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/Runtime/EventPumpStreamFaultTests.cs

@@ -1,6 +1,6 @@
 using System.Threading.Channels;
 using Google.Protobuf.WellKnownTypes;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 using Shouldly;
 using Xunit;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/Runtime/GalaxyDriverSubscribeTests.cs

@@ -1,6 +1,6 @@
 using System.Threading.Channels;
 using Google.Protobuf.WellKnownTypes;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 using Shouldly;
 using Xunit;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/Runtime/GalaxyDriverWriteTests.cs

@@ -1,4 +1,4 @@
-using MxGateway.Contracts.Proto.Galaxy;
+using ZB.MOM.WW.MxGateway.Contracts.Proto.Galaxy;
 using Shouldly;
 using Xunit;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/Runtime/GalaxyTelemetryTests.cs

@@ -1,5 +1,5 @@
 using System.Diagnostics;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 using Shouldly;
 using Xunit;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
@@ -183,9 +183,9 @@ public sealed class GalaxyTelemetryTests
     private sealed class FakeHierarchy : IGalaxyHierarchySource
     {
         /// <inheritdoc />
-        public Task<IReadOnlyList<MxGateway.Contracts.Proto.Galaxy.GalaxyObject>> GetHierarchyAsync(
+        public Task<IReadOnlyList<ZB.MOM.WW.MxGateway.Contracts.Proto.Galaxy.GalaxyObject>> GetHierarchyAsync(
             CancellationToken cancellationToken)
-            => Task.FromResult<IReadOnlyList<MxGateway.Contracts.Proto.Galaxy.GalaxyObject>>(
+            => Task.FromResult<IReadOnlyList<ZB.MOM.WW.MxGateway.Contracts.Proto.Galaxy.GalaxyObject>>(
                 [new(), new()]);
     }
 }

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/Runtime/GatewayGalaxyAlarmFeedTests.cs

@@ -1,6 +1,6 @@
 using System.Runtime.CompilerServices;
 using Google.Protobuf.WellKnownTypes;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 using Shouldly;
 using Xunit;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/Runtime/MxValueDecoderTests.cs

@@ -1,6 +1,6 @@
 using Google.Protobuf;
 using Google.Protobuf.WellKnownTypes;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 using Shouldly;
 using Xunit;
 using ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/Runtime/MxValueEncoderTests.cs

@@ -1,5 +1,5 @@
 using Google.Protobuf.WellKnownTypes;
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 using Shouldly;
 using Xunit;
 using ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/Runtime/StatusCodeMapTests.cs

@@ -1,4 +1,4 @@
-using MxGateway.Contracts.Proto;
+using ZB.MOM.WW.MxGateway.Contracts.Proto;
 using Shouldly;
 using Xunit;
 using ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests.csproj

@@ -24,16 +24,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <!-- Vendored mxaccessgw contracts DLL. The driver under test holds the same
+        <PackageReference Include="ZB.MOM.WW.MxGateway.Contracts" />
-             binary reference; this explicit duplicate lets tests construct
-             GalaxyObject / GalaxyAttribute / MxCommand / MxEvent fixtures directly
-             rather than only via the driver's public surface. See
-             ..\..\..\src\Drivers\ZB.MOM.WW.OtOpcUa.Driver.Galaxy\libs\README.md for
-             the unwinding plan. -->
-        <Reference Include="MxGateway.Contracts">
-            <HintPath>..\..\..\src\Drivers\ZB.MOM.WW.OtOpcUa.Driver.Galaxy\libs\MxGateway.Contracts.dll</HintPath>
-            <Private>true</Private>
-        </Reference>
     </ItemGroup>
 
 </Project>