Joseph Doherty
cf43f8d0ab
Adds the /current and /sample legs to MTConnectAgentClient: - MTConnectStreamsParser: hand-rolled System.Xml.Linq parse of an MTConnectStreams document into MTConnectStreamsResult. Observations are every element child of <Samples>/<Events>/<Condition>, keyed by dataItemId (the element NAME is the data item's type in PascalCase, so a fixed name set would drop observations). A CONDITION's value is its element name, not its text - <Normal/> is empty - and <Unavailable/> normalizes onto the same UNAVAILABLE sentinel a Sample/Event carries as text, so Task 8's no-comms mapping sees one token. Timestamps are normalized to DateTimeKind.Utc explicitly. - IsSequenceGap(requestedFrom, chunk) => chunk.FirstSequence > requestedFrom, so Task 11's pump can re-baseline after a ring-buffer overflow. Equality is NOT a gap. - SampleAsync: ResponseHeadersRead + a hand-rolled multipart/x-mixed-replace frame reader (Content-length fast path, boundary-scan fallback), bounded by a heartbeat watchdog derived from HeartbeatMs so a silent Agent faults instead of wedging the pump - the S7 frozen-peer shape (arch-review R2-01). The long poll gets its own HttpClient with an infinite Timeout so the unary /probe + /current deadline stays bounded. Task 0 package decision, option (c): both TrakHound PackageReferences and their PackageVersions are dropped. MTConnectHttpClientStream takes a URL and dials its own socket (no handler/stream seam, so it cannot serve a socket-free unit suite), and it emits already-parsed documents through the formatter lookup Task 6 proved is missing - framing-only reuse was never actually on offer. The driver now depends on nothing but the BCL. Recorded in the plan's Task 0 CORRECTION block. Also folds in two Task 6 review carry-overs: the stale IMTConnectAgentClient doc comment claiming a TrakHound-backed implementation, and a probe test constructing a mixed-namespace vendor extension (<x:Pump> with default-namespace <DataItems> children) that backs the parser's ignore-the-namespace claim with a test. 187/187 green.
32 lines
1.5 KiB
XML
32 lines
1.5 KiB
XML
<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>net10.0</TargetFramework>
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<Nullable>enable</Nullable>
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<ImplicitUsings>enable</ImplicitUsings>
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<LangVersion>latest</LangVersion>
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<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
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<GenerateDocumentationFile>true</GenerateDocumentationFile>
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<NoWarn>$(NoWarn);CS1591</NoWarn>
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<RootNamespace>ZB.MOM.WW.OtOpcUa.Driver.MTConnect</RootNamespace>
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</PropertyGroup>
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<ItemGroup>
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<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Core.Abstractions\ZB.MOM.WW.OtOpcUa.Core.Abstractions.csproj"/>
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<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Core\ZB.MOM.WW.OtOpcUa.Core.csproj"/>
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<ProjectReference Include="..\ZB.MOM.WW.OtOpcUa.Driver.MTConnect.Contracts\ZB.MOM.WW.OtOpcUa.Driver.MTConnect.Contracts.csproj"/>
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</ItemGroup>
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<!-- No backend NuGet: the Agent surface is plain HTTP + XML, served entirely by the BCL
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(HttpClient + System.Xml.Linq). The TrakHound MTConnect.NET-Common/-HTTP references Task 0
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added were removed in Task 7 — they can neither parse an MTConnect document (no XML
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formatter ships in either package) nor frame the /sample stream socket-free (their client
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type dials its own URL). See the Task 0 CORRECTION block in
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docs/plans/2026-07-24-mtconnect-driver.md. -->
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<ItemGroup>
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<InternalsVisibleTo Include="ZB.MOM.WW.OtOpcUa.Driver.MTConnect.Tests"/>
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</ItemGroup>
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</Project>
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