Add test, fix vectors format name and add to module-info

Author: carlosdelest

server/src/main/java/module-info.java

@@ -456,6 +456,7 @@
             org.elasticsearch.index.codec.vectors.es816.ES816HnswBinaryQuantizedVectorsFormat,
             org.elasticsearch.index.codec.vectors.es818.ES818BinaryQuantizedVectorsFormat,
             org.elasticsearch.index.codec.vectors.es818.ES818HnswBinaryQuantizedVectorsFormat,
+            org.elasticsearch.index.codec.vectors.es910.ES910HnswReducedHeapVectorsFormat,
             org.elasticsearch.index.codec.vectors.IVFVectorsFormat;
 
     provides org.apache.lucene.codecs.Codec

server/src/main/java/org/elasticsearch/index/codec/vectors/es910/ES910HnswReducedHeapVectorsFormat.java

@@ -49,7 +49,7 @@
  */
 public class ES910HnswReducedHeapVectorsFormat extends KnnVectorsFormat {
 
-    static final String NAME = "ES819HnswReducedHeapVectorFormat";
+    static final String NAME = "ES910HnswReducedHeapVectorsFormat";
 
     static final String META_CODEC_NAME = "Lucene99HnswVectorsFormatMeta";
     static final String VECTOR_INDEX_CODEC_NAME = "Lucene99HnswVectorsFormatIndex";

server/src/main/resources/META-INF/services/org.apache.lucene.codecs.KnnVectorsFormat

@@ -7,4 +7,5 @@ org.elasticsearch.index.codec.vectors.es816.ES816BinaryQuantizedVectorsFormat
 org.elasticsearch.index.codec.vectors.es816.ES816HnswBinaryQuantizedVectorsFormat
 org.elasticsearch.index.codec.vectors.es818.ES818BinaryQuantizedVectorsFormat
 org.elasticsearch.index.codec.vectors.es818.ES818HnswBinaryQuantizedVectorsFormat
+org.elasticsearch.index.codec.vectors.es910.ES910HnswReducedHeapVectorsFormat
 org.elasticsearch.index.codec.vectors.IVFVectorsFormat

server/src/test/java/org/elasticsearch/index/codec/vectors/es910/ES910HnswReducedHeapVectorsWriterTests.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the "Elastic License
+ * 2.0", the "GNU Affero General Public License v3.0 only", and the "Server Side
+ * Public License v 1"; you may not use this file except in compliance with, at
+ * your election, the "Elastic License 2.0", the "GNU Affero General Public
+ * License v3.0 only", or the "Server Side Public License, v 1".
+ */
+
+package org.elasticsearch.index.codec.vectors.es910;
+
+
+import org.apache.lucene.codecs.Codec;
+import org.apache.lucene.tests.index.BaseKnnVectorsFormatTestCase;
+import org.apache.lucene.tests.util.TestUtil;
+import org.elasticsearch.common.logging.LogConfigurator;
+
+public class ES910HnswReducedHeapVectorsWriterTests extends BaseKnnVectorsFormatTestCase {
+
+    static {
+        LogConfigurator.loadLog4jPlugins();
+        LogConfigurator.configureESLogging(); // native access requires logging to be initialized
+    }
+
+    static final Codec codec = TestUtil.alwaysKnnVectorsFormat(new ES910HnswReducedHeapVectorsFormat());
+
+    @Override
+    protected Codec getCodec() {
+        return codec;
+    }
+}