From 011eec12f9176a6a8b8d8b9133bc00107a7855c0 Mon Sep 17 00:00:00 2001
From: Yuriy Andamasov <yuriy@vyos.io>
Date: Sat, 23 May 2026 15:48:18 +0300
Subject: Engine: revert abstract → plain class for production dispatch
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A recent fixup cascade declared VyOSElasticModernFulltextStorageEngine
as 'abstract class' to enable test-doubling subclasses
(VyOSElasticModernHostTestEngine, VyOSElasticModernFulltextStorageEngineTestDouble).

That change broke production dispatch: Phorge's PhutilClassMapQuery
selects engines via PhutilSymbolLoader::loadObjects(), which calls
setConcreteOnly(true) and unsets any class where reflection reports
isAbstract(). The engine class would no longer be discoverable by
cluster.search[].type:elasticsearch-modern, and the test-fixture
subclasses live in src/__tests__/ which libphutil excludes from
runtime class-map loading.

Revert to plain 'class' (not 'final', not 'abstract'). Plain
'class' is discoverable by PhutilClassMapQuery; existing test
fixtures keep working without rewrite; operators can subclass if
they need to (harmless).

Also update VyOSElasticModernHostTestCase::testPlaceholderEngineIsAbstract
→ testEngineIsConcreteForDispatch, inverting the assertion to document
the correct invariant and its rationale (setConcreteOnly reference).

All 22 tests pass.

🤖 Generated by [robots](https://vyos.io)
---
 src/engine/VyOSElasticModernFulltextStorageEngine.php | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'src/engine/VyOSElasticModernFulltextStorageEngine.php')

diff --git a/src/engine/VyOSElasticModernFulltextStorageEngine.php b/src/engine/VyOSElasticModernFulltextStorageEngine.php
index f290513..5c3d9a2 100644
--- a/src/engine/VyOSElasticModernFulltextStorageEngine.php
+++ b/src/engine/VyOSElasticModernFulltextStorageEngine.php
@@ -1,10 +1,11 @@
 <?php
 
 /**
- * Placeholder for the engine class. Keep this abstract until E7/E8 land so
- * it is not auto-discovered as a selectable backend before it can operate.
+ * Full-text storage engine for Elasticsearch 7/8 and compatible OpenSearch
+ * clusters. Discoverable by PhutilClassMapQuery (plain class, not abstract)
+ * so Phorge's cluster.search dispatch can find and instantiate it.
  */
-abstract class VyOSElasticModernFulltextStorageEngine
+class VyOSElasticModernFulltextStorageEngine
   extends PhabricatorFulltextStorageEngine {
 
   private $version = null;
-- 
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