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docs(dcl): document MxGateway protocol + protocol-agnostic browse

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Adds MxGateway under Supported Protocols, an MxGateway Settings config table,
notes IBrowsableDataConnection now backs both protocols via BrowseNodeCommand/
BrowseService, and updates the README component table.
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Joseph Doherty
2026-05-29 08:05:05 -04:00
parent 569edf2975
commit f9c4538395
2 changed files with 28 additions and 4 deletions
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README.md
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@@ -45,7 +45,7 @@ Both stacks share the infrastructure services in [`infra/`](infra/) (MS SQL, LDA
| 1 | Template Engine | [docs/requirements/Component-TemplateEngine.md](docs/requirements/Component-TemplateEngine.md) | Template modeling, inheritance, composition, path-qualified member addressing, override granularity, locking, alarms, flattening, semantic validation, revision hashing, diff calculation, and folder organization (nested folders, drag-drop). |
| 2 | Deployment Manager | [docs/requirements/Component-DeploymentManager.md](docs/requirements/Component-DeploymentManager.md) | Central-side deployment pipeline with deployment ID/idempotency, per-instance operation lock, state transition matrix, all-or-nothing site apply, system-wide artifact deployment with per-site status. |
| 3 | Site Runtime | [docs/requirements/Component-SiteRuntime.md](docs/requirements/Component-SiteRuntime.md) | Site-side actor hierarchy with explicit supervision strategies, staggered startup, script trust model (constrained APIs), Tell/Ask conventions, concurrency serialization, and site-wide Akka stream with per-subscriber backpressure. |
| 4 | Data Connection Layer | [docs/requirements/Component-DataConnectionLayer.md](docs/requirements/Component-DataConnectionLayer.md) | Common data connection interface (OPC UA, custom), Become/Stash connection actor model, auto-reconnect, immediate bad quality on disconnect, transparent re-subscribe, synchronous write failures, tag path resolution retry. |
| 4 | Data Connection Layer | [docs/requirements/Component-DataConnectionLayer.md](docs/requirements/Component-DataConnectionLayer.md) | Common data connection interface (OPC UA, MxGateway, custom), Become/Stash connection actor model, auto-reconnect, immediate bad quality on disconnect, transparent re-subscribe, synchronous write failures, tag path resolution retry, protocol-agnostic address-space browse. |
| 5 | Central–Site Communication | [docs/requirements/Component-Communication.md](docs/requirements/Component-Communication.md) | Dual transport: Akka.NET ClusterClient (command/control) + gRPC server-streaming (real-time data). 9 message patterns with per-pattern timeouts, SiteStreamGrpcServer/Client, application-level correlation IDs, transport heartbeat config, gRPC keepalive, message ordering, connection failure behavior. |
| 6 | Store-and-Forward Engine | [docs/requirements/Component-StoreAndForward.md](docs/requirements/Component-StoreAndForward.md) | Buffering (transient failures only), fixed-interval retry, parking, async best-effort replication, SQLite persistence at sites. |
| 7 | External System Gateway | [docs/requirements/Component-ExternalSystemGateway.md](docs/requirements/Component-ExternalSystemGateway.md) | HTTP/REST + JSON, API key/Basic Auth, per-system timeout, dual call modes (Call/CachedCall), transient/permanent error classification, dedicated blocking I/O dispatcher, ADO.NET connection pooling. |