Add Lucene99ScalarQuantizedVector classes removed in Lucene 10.4 (#135424)

Author: thecoop

benchmarks/src/main/java/org/elasticsearch/benchmark/vector/Int7uScorerBenchmark.java

@@ -10,7 +10,6 @@
 package org.elasticsearch.benchmark.vector;
 
 import org.apache.lucene.codecs.lucene99.Lucene99ScalarQuantizedVectorScorer;
-import org.apache.lucene.codecs.lucene99.OffHeapQuantizedByteVectorValues;
 import org.apache.lucene.index.VectorSimilarityFunction;
 import org.apache.lucene.store.Directory;
 import org.apache.lucene.store.IOContext;
@@ -24,6 +23,7 @@
 import org.apache.lucene.util.quantization.ScalarQuantizer;
 import org.elasticsearch.common.logging.LogConfigurator;
 import org.elasticsearch.core.IOUtils;
+import org.elasticsearch.index.codec.vectors.OffHeapQuantizedByteVectorValues;
 import org.elasticsearch.logging.LogManager;
 import org.elasticsearch.logging.Logger;
 import org.elasticsearch.simdvec.VectorScorerFactory;

libs/simdvec/src/test/java/org/elasticsearch/simdvec/Int7SQVectorScorerFactoryTests.java

@@ -12,7 +12,6 @@
 import com.carrotsearch.randomizedtesting.generators.RandomNumbers;
 
 import org.apache.lucene.codecs.lucene99.Lucene99ScalarQuantizedVectorScorer;
-import org.apache.lucene.codecs.lucene99.OffHeapQuantizedByteVectorValues;
 import org.apache.lucene.index.VectorSimilarityFunction;
 import org.apache.lucene.store.Directory;
 import org.apache.lucene.store.IOContext;
@@ -24,6 +23,7 @@
 import org.apache.lucene.util.quantization.QuantizedByteVectorValues;
 import org.apache.lucene.util.quantization.ScalarQuantizedVectorSimilarity;
 import org.apache.lucene.util.quantization.ScalarQuantizer;
+import org.elasticsearch.index.codec.vectors.OffHeapQuantizedByteVectorValues;
 
 import java.io.IOException;
 import java.util.Arrays;

server/src/main/java/org/elasticsearch/index/codec/vectors/ES814ScalarQuantizedVectorsFormat.java

@@ -17,8 +17,6 @@
 import org.apache.lucene.codecs.hnsw.FlatVectorsWriter;
 import org.apache.lucene.codecs.hnsw.ScalarQuantizedVectorScorer;
 import org.apache.lucene.codecs.lucene99.Lucene99FlatVectorsFormat;
-import org.apache.lucene.codecs.lucene99.Lucene99ScalarQuantizedVectorsReader;
-import org.apache.lucene.codecs.lucene99.Lucene99ScalarQuantizedVectorsWriter;
 import org.apache.lucene.index.ByteVectorValues;
 import org.apache.lucene.index.FieldInfo;
 import org.apache.lucene.index.FloatVectorValues;
@@ -40,7 +38,6 @@
 import java.io.IOException;
 import java.util.Map;
 
-import static org.apache.lucene.codecs.lucene99.Lucene99ScalarQuantizedVectorsFormat.DYNAMIC_CONFIDENCE_INTERVAL;
 import static org.elasticsearch.index.mapper.vectors.DenseVectorFieldMapper.MAX_DIMS_COUNT;
 
 public class ES814ScalarQuantizedVectorsFormat extends FlatVectorsFormat {
@@ -60,6 +57,9 @@ public class ES814ScalarQuantizedVectorsFormat extends FlatVectorsFormat {
     /** The maximum confidence interval */
     private static final float MAXIMUM_CONFIDENCE_INTERVAL = 1f;
 
+    /** Dynamic confidence interval */
+    public static final float DYNAMIC_CONFIDENCE_INTERVAL = 0f;
+
     /**
      * Controls the confidence interval used to scalar quantize the vectors the default value is
      * calculated as `1-1/(vector_dimensions + 1)`