Add builder pattern to CoherenceVectorStore and refactor package name

vector-stores/spring-ai-coherence-store/src/main/java/org/springframework/ai/vectorstore/coherence/CoherenceFilterExpressionConverter.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.ai.vectorstore;
+package org.springframework.ai.vectorstore.coherence;
 
 import java.util.List;
 

vector-stores/spring-ai-coherence-store/src/main/java/org/springframework/ai/vectorstore/coherence/CoherenceVectorStore.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.ai.vectorstore;
+package org.springframework.ai.vectorstore.coherence;
 
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -39,8 +39,15 @@ import com.tangosol.util.Filter;
 import org.springframework.ai.document.Document;
 import org.springframework.ai.document.DocumentMetadata;
 import org.springframework.ai.embedding.EmbeddingModel;
+import org.springframework.ai.observation.conventions.VectorStoreProvider;
+import org.springframework.ai.vectorstore.AbstractVectorStoreBuilder;
+import org.springframework.ai.vectorstore.SearchRequest;
 import org.springframework.ai.vectorstore.filter.Filter.Expression;
+import org.springframework.ai.vectorstore.observation.AbstractObservationVectorStore;
+import org.springframework.ai.vectorstore.observation.VectorStoreObservationContext;
 import org.springframework.beans.factory.InitializingBean;
+import org.springframework.util.Assert;
+import org.springframework.util.StringUtils;
 
 /**
  * <p>
@@ -66,7 +73,7 @@ import org.springframework.beans.factory.InitializingBean;
  * @author Thomas Vitale
  * @since 1.0.0
  */
-public class CoherenceVectorStore implements VectorStore, InitializingBean {
+public class CoherenceVectorStore extends AbstractObservationVectorStore implements InitializingBean {
 
 	public enum IndexType {
 
@@ -112,11 +119,6 @@ public class CoherenceVectorStore implements VectorStore, InitializingBean {
 
 	public static final CoherenceFilterExpressionConverter FILTER_EXPRESSION_CONVERTER = new CoherenceFilterExpressionConverter();
 
-	/**
-	 * The embedding model to use to create query embedding.
-	 */
-	private final EmbeddingModel embeddingModel;
-
 	private final int dimensions;
 
 	private final Session session;
@@ -126,45 +128,92 @@ public class CoherenceVectorStore implements VectorStore, InitializingBean {
 	/**
 	 * Map name where vectors will be stored.
 	 */
-	private String mapName = DEFAULT_MAP_NAME;
+	private String mapName;
 
 	/**
 	 * Distance type to use for computing vector distances.
 	 */
-	private DistanceType distanceType = DEFAULT_DISTANCE_TYPE;
+	private DistanceType distanceType;
 
 	private boolean forcedNormalization;
 
-	private IndexType indexType = IndexType.NONE;
+	private IndexType indexType;
 
+	/**
+	 * Creates a new CoherenceVectorStore with minimal configuration.
+	 * @param embeddingModel the embedding model to use
+	 * @param session the Coherence session
+	 * @deprecated Since 1.0.0-M5, use {@link #builder()} instead
+	 */
+	@Deprecated(since = "1.0.0-M5", forRemoval = true)
 	public CoherenceVectorStore(EmbeddingModel embeddingModel, Session session) {
-		this.embeddingModel = embeddingModel;
-		this.session = session;
-		this.dimensions = embeddingModel.dimensions();
+		this(builder().embeddingModel(embeddingModel).session(session));
 	}
 
+	/**
+	 * Protected constructor that accepts a builder instance. This is the preferred way to
+	 * create new CoherenceVectorStore instances.
+	 * @param builder the configured builder instance
+	 */
+	protected CoherenceVectorStore(CoherenceBuilder builder) {
+		super(builder);
+
+		Assert.notNull(builder.session, "Session must not be null");
+
+		this.session = builder.session;
+		this.dimensions = builder.getEmbeddingModel().dimensions();
+		this.mapName = builder.mapName;
+		this.distanceType = builder.distanceType;
+		this.forcedNormalization = builder.forcedNormalization;
+		this.indexType = builder.indexType;
+	}
+
+	/**
+	 * Creates a new builder for configuring and creating CoherenceVectorStore instances.
+	 * @return a new builder instance
+	 */
+	public static CoherenceBuilder builder() {
+		return new CoherenceBuilder();
+	}
+
+	/**
+	 * @deprecated Since 1.0.0-M5, use {@link #builder()} instead
+	 */
+	@Deprecated(since = "1.0.0-M5", forRemoval = true)
 	public CoherenceVectorStore setMapName(String mapName) {
 		this.mapName = mapName;
 		return this;
 	}
 
+	/**
+	 * @deprecated Since 1.0.0-M5, use {@link #builder()} instead
+	 */
+	@Deprecated(since = "1.0.0-M5", forRemoval = true)
 	public CoherenceVectorStore setDistanceType(DistanceType distanceType) {
 		this.distanceType = distanceType;
 		return this;
 	}
 
+	/**
+	 * @deprecated Since 1.0.0-M5, use {@link #builder()} instead
+	 */
+	@Deprecated(since = "1.0.0-M5", forRemoval = true)
 	public CoherenceVectorStore setIndexType(IndexType indexType) {
 		this.indexType = indexType;
 		return this;
 	}
 
+	/**
+	 * @deprecated Since 1.0.0-M5, use {@link #builder()} instead
+	 */
+	@Deprecated(since = "1.0.0-M5", forRemoval = true)
 	public CoherenceVectorStore setForcedNormalization(boolean forcedNormalization) {
 		this.forcedNormalization = forcedNormalization;
 		return this;
 	}
 
 	@Override
-	public void add(final List<Document> documents) {
+	public void doAdd(final List<Document> documents) {
 		Map<DocumentChunk.Id, DocumentChunk> chunks = new HashMap<>((int) Math.ceil(documents.size() / 0.75f));
 		for (Document doc : documents) {
 			var id = toChunkId(doc.getId());
@@ -176,7 +225,7 @@ public class CoherenceVectorStore implements VectorStore, InitializingBean {
 	}
 
 	@Override
-	public Optional<Boolean> delete(final List<String> idList) {
+	public Optional<Boolean> doDelete(final List<String> idList) {
 		var chunkIds = idList.stream().map(this::toChunkId).toList();
 		Map<DocumentChunk.Id, Boolean> results = this.documentChunks.invokeAll(chunkIds, entry -> {
 			if (entry.isPresent()) {
@@ -194,7 +243,7 @@ public class CoherenceVectorStore implements VectorStore, InitializingBean {
 	}
 
 	@Override
-	public List<Document> similaritySearch(SearchRequest request) {
+	public List<Document> doSimilaritySearch(SearchRequest request) {
 		// From the provided query, generate a vector using the embedding model
 		final Float32Vector vector = toFloat32Vector(this.embeddingModel.embed(request.getQuery()));
 
@@ -265,4 +314,98 @@ public class CoherenceVectorStore implements VectorStore, InitializingBean {
 		return this.mapName;
 	}
 
+	@Override
+	public VectorStoreObservationContext.Builder createObservationContextBuilder(String operationName) {
+
+		return VectorStoreObservationContext.builder(VectorStoreProvider.NEO4J.value(), operationName)
+			.withCollectionName(this.mapName)
+			.withDimensions(this.embeddingModel.dimensions());
+	}
+
+	/**
+	 * Builder class for creating {@link CoherenceVectorStore} instances.
+	 * <p>
+	 * Provides a fluent API for configuring all aspects of the Coherence vector store,
+	 * including map name, distance type, and indexing options.
+	 *
+	 * @since 1.0.0
+	 */
+	public static class CoherenceBuilder extends AbstractVectorStoreBuilder<CoherenceBuilder> {
+
+		private Session session;
+
+		private String mapName = DEFAULT_MAP_NAME;
+
+		private DistanceType distanceType = DEFAULT_DISTANCE_TYPE;
+
+		private boolean forcedNormalization = false;
+
+		private IndexType indexType = IndexType.NONE;
+
+		/**
+		 * Sets the Coherence session.
+		 * @param session the session to use
+		 * @return the builder instance
+		 * @throws IllegalArgumentException if session is null
+		 */
+		public CoherenceBuilder session(Session session) {
+			Assert.notNull(session, "Session must not be null");
+			this.session = session;
+			return this;
+		}
+
+		/**
+		 * Sets the map name for vector storage.
+		 * @param mapName the name of the map to use
+		 * @return the builder instance
+		 */
+		public CoherenceBuilder mapName(String mapName) {
+			if (StringUtils.hasText(mapName)) {
+				this.mapName = mapName;
+			}
+			return this;
+		}
+
+		/**
+		 * Sets the distance type for vector similarity calculations.
+		 * @param distanceType the distance type to use
+		 * @return the builder instance
+		 * @throws IllegalArgumentException if distanceType is null
+		 */
+		public CoherenceBuilder distanceType(DistanceType distanceType) {
+			Assert.notNull(distanceType, "DistanceType must not be null");
+			this.distanceType = distanceType;
+			return this;
+		}
+
+		/**
+		 * Sets whether to force vector normalization.
+		 * @param forcedNormalization true to force normalization, false otherwise
+		 * @return the builder instance
+		 */
+		public CoherenceBuilder forcedNormalization(boolean forcedNormalization) {
+			this.forcedNormalization = forcedNormalization;
+			return this;
+		}
+
+		/**
+		 * Sets the index type for vector storage.
+		 * @param indexType the index type to use
+		 * @return the builder instance
+		 * @throws IllegalArgumentException if indexType is null
+		 */
+		public CoherenceBuilder indexType(IndexType indexType) {
+			Assert.notNull(indexType, "IndexType must not be null");
+			this.indexType = indexType;
+			return this;
+		}
+
+		@Override
+		public CoherenceVectorStore build() {
+			validate();
+			return new CoherenceVectorStore(this);
+		}
+
+	}
+
 }

vector-stores/spring-ai-coherence-store/src/test/java/org/springframework/ai/vectorstore/coherence/CoherenceFilterExpressionConverterTests.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.ai.vectorstore;
+package org.springframework.ai.vectorstore.coherence;
 
 import com.tangosol.util.Filters;
 import com.tangosol.util.ValueExtractor;

vector-stores/spring-ai-coherence-store/src/test/java/org/springframework/ai/vectorstore/coherence/CoherenceVectorStoreIT.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.ai.vectorstore;
+package org.springframework.ai.vectorstore.coherence;
 
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
@@ -50,6 +50,8 @@ import org.springframework.ai.document.Document;
 import org.springframework.ai.document.DocumentMetadata;
 import org.springframework.ai.embedding.EmbeddingModel;
 import org.springframework.ai.transformers.TransformersEmbeddingModel;
+import org.springframework.ai.vectorstore.SearchRequest;
+import org.springframework.ai.vectorstore.VectorStore;
 import org.springframework.ai.vectorstore.filter.FilterExpressionTextParser;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.SpringBootConfiguration;
@@ -309,10 +311,14 @@ public class CoherenceVectorStoreIT {
 
 		@Bean
 		public VectorStore vectorStore(EmbeddingModel embeddingModel, Session session) {
-			return new CoherenceVectorStore(embeddingModel, session).setDistanceType(this.distanceType)
-				.setIndexType(this.indexType)
-				.setForcedNormalization(this.distanceType == CoherenceVectorStore.DistanceType.COSINE
-						|| this.distanceType == CoherenceVectorStore.DistanceType.IP);
+			return CoherenceVectorStore.builder()
+				.embeddingModel(embeddingModel)
+				.session(session)
+				.distanceType(this.distanceType)
+				.indexType(this.indexType)
+				.forcedNormalization(this.distanceType == CoherenceVectorStore.DistanceType.COSINE
+						|| this.distanceType == CoherenceVectorStore.DistanceType.IP)
+				.build();
 		}
 
 		@Bean