Qdrant vector store builder refactoring

spring-ai-spring-boot-autoconfigure/src/main/java/org/springframework/ai/autoconfigure/vectorstore/qdrant/QdrantVectorStoreAutoConfiguration.java

@@ -77,9 +77,14 @@ public QdrantVectorStore vectorStore(EmbeddingModel embeddingModel, QdrantVector
 			QdrantClient qdrantClient, ObjectProvider<ObservationRegistry> observationRegistry,
 			ObjectProvider<VectorStoreObservationConvention> customObservationConvention,
 			BatchingStrategy batchingStrategy) {
-		return new QdrantVectorStore(qdrantClient, properties.getCollectionName(), embeddingModel,
-				properties.isInitializeSchema(), observationRegistry.getIfUnique(() -> ObservationRegistry.NOOP),
-				customObservationConvention.getIfAvailable(() -> null), batchingStrategy);
+		return QdrantVectorStore.builder(qdrantClient)
+			.collectionName(properties.getCollectionName())
+			.embeddingModel(embeddingModel)
+			.initializeSchema(properties.isInitializeSchema())
+			.observationRegistry(observationRegistry.getIfUnique(() -> ObservationRegistry.NOOP))
+			.customObservationConvention(customObservationConvention.getIfAvailable(() -> null))
+			.batchingStrategy(batchingStrategy)
+			.build();
 	}
 
 	static class PropertiesQdrantConnectionDetails implements QdrantConnectionDetails {

vector-stores/spring-ai-qdrant-store/src/main/java/org/springframework/ai/vectorstore/qdrant/QdrantVectorStore.java

@@ -42,6 +42,7 @@
 import org.springframework.ai.embedding.TokenCountBatchingStrategy;
 import org.springframework.ai.model.EmbeddingUtils;
 import org.springframework.ai.observation.conventions.VectorStoreProvider;
+import org.springframework.ai.vectorstore.AbstractVectorStoreBuilder;
 import org.springframework.ai.vectorstore.SearchRequest;
 import org.springframework.ai.vectorstore.observation.AbstractObservationVectorStore;
 import org.springframework.ai.vectorstore.observation.VectorStoreObservationContext;
@@ -67,8 +68,6 @@ public class QdrantVectorStore extends AbstractObservationVectorStore implements
 
 	private static final String CONTENT_FIELD_NAME = "doc_content";
 
-	private final EmbeddingModel embeddingModel;
-
 	private final QdrantClient qdrantClient;
 
 	private final String collectionName;
@@ -85,7 +84,9 @@ public class QdrantVectorStore extends AbstractObservationVectorStore implements
 	 * @param collectionName The name of the collection to use in Qdrant.
 	 * @param embeddingModel The client for embedding operations.
 	 * @param initializeSchema A boolean indicating whether to initialize the schema.
+	 * @deprecated Use {@link #builder(QdrantClient)}
 	 */
+	@Deprecated(forRemoval = true, since = "1.0.0-M5")
 	public QdrantVectorStore(QdrantClient qdrantClient, String collectionName, EmbeddingModel embeddingModel,
 			boolean initializeSchema) {
 		this(qdrantClient, collectionName, embeddingModel, initializeSchema, ObservationRegistry.NOOP, null,
@@ -100,22 +101,48 @@ public QdrantVectorStore(QdrantClient qdrantClient, String collectionName, Embed
 	 * @param initializeSchema A boolean indicating whether to initialize the schema.
 	 * @param observationRegistry The observation registry to use.
 	 * @param customObservationConvention The custom search observation convention to use.
+	 * @deprecated Use {@link #builder(QdrantClient)}
 	 */
+	@Deprecated(forRemoval = true, since = "1.0.0-M5")
 	public QdrantVectorStore(QdrantClient qdrantClient, String collectionName, EmbeddingModel embeddingModel,
 			boolean initializeSchema, ObservationRegistry observationRegistry,
 			VectorStoreObservationConvention customObservationConvention, BatchingStrategy batchingStrategy) {
 
-		super(observationRegistry, customObservationConvention);
+		this(builder(qdrantClient).embeddingModel(embeddingModel)
+			.collectionName(collectionName)
+			.initializeSchema(initializeSchema)
+			.observationRegistry(observationRegistry)
+			.customObservationConvention(customObservationConvention)
+			.batchingStrategy(batchingStrategy));
+	}
 
-		Assert.notNull(qdrantClient, "QdrantClient must not be null");
-		Assert.notNull(collectionName, "collectionName must not be null");
-		Assert.notNull(embeddingModel, "EmbeddingModel must not be null");
+	/**
+	 * Protected constructor for creating a QdrantVectorStore instance using the builder
+	 * pattern.
+	 * @param builder the {@link QdrantBuilder} containing all configuration settings
+	 * @throws IllegalArgumentException if qdrant client is missing
+	 * @see QdrantBuilder
+	 * @since 1.0.0
+	 */
+	protected QdrantVectorStore(QdrantBuilder builder) {
+		super(builder);
+
+		Assert.notNull(builder.qdrantClient, "QdrantClient must not be null");
+
+		this.qdrantClient = builder.qdrantClient;
+		this.collectionName = builder.collectionName;
+		this.initializeSchema = builder.initializeSchema;
+		this.batchingStrategy = builder.batchingStrategy;
+	}
 
-		this.initializeSchema = initializeSchema;
-		this.embeddingModel = embeddingModel;
-		this.collectionName = collectionName;
-		this.qdrantClient = qdrantClient;
-		this.batchingStrategy = batchingStrategy;
+	/**
+	 * Creates a new QdrantBuilder instance. This is the recommended way to instantiate a
+	 * QdrantVectorStore.
+	 * @param qdrantClient the client for interfacing with Qdrant
+	 * @return a new QdrantBuilder instance
+	 */
+	public static QdrantBuilder builder(QdrantClient qdrantClient) {
+		return new QdrantBuilder(qdrantClient);
 	}
 
 	/**
@@ -272,4 +299,80 @@ public VectorStoreObservationContext.Builder createObservationContextBuilder(Str
 
 	}
 
+	/**
+	 * Builder for creating instances of {@link QdrantVectorStore}. This builder provides
+	 * a fluent API for configuring all aspects of the vector store.
+	 *
+	 * @since 1.0.0
+	 */
+	public static final class QdrantBuilder extends AbstractVectorStoreBuilder<QdrantBuilder> {
+
+		private final QdrantClient qdrantClient;
+
+		private String collectionName = DEFAULT_COLLECTION_NAME;
+
+		private boolean initializeSchema = false;
+
+		private BatchingStrategy batchingStrategy = new TokenCountBatchingStrategy();
+
+		/**
+		 * Creates a new builder instance with the required QdrantClient and
+		 * EmbeddingModel.
+		 * @param qdrantClient the client for Qdrant operations
+		 * @throws IllegalArgumentException if qdrantClient is null
+		 */
+		QdrantBuilder(QdrantClient qdrantClient) {
+			Assert.notNull(qdrantClient, "QdrantClient must not be null");
+			this.qdrantClient = qdrantClient;
+		}
+
+		/**
+		 * Configures the Qdrant collection name.
+		 * @param collectionName the name of the collection to use (defaults to
+		 * {@value DEFAULT_COLLECTION_NAME})
+		 * @return this builder instance
+		 * @throws IllegalArgumentException if collectionName is null or empty
+		 */
+		public QdrantBuilder collectionName(String collectionName) {
+			Assert.hasText(collectionName, "collectionName must not be empty");
+			this.collectionName = collectionName;
+			return this;
+		}
+
+		/**
+		 * Configures whether to initialize the collection schema.
+		 * @param initializeSchema true to initialize schema automatically
+		 * @return this builder instance
+		 */
+		public QdrantBuilder initializeSchema(boolean initializeSchema) {
+			this.initializeSchema = initializeSchema;
+			return this;
+		}
+
+		/**
+		 * Configures the strategy for batching operations.
+		 * @param batchingStrategy the batching strategy to use
+		 * @return this builder instance
+		 * @throws IllegalArgumentException if batchingStrategy is null
+		 */
+		public QdrantBuilder batchingStrategy(BatchingStrategy batchingStrategy) {
+			Assert.notNull(batchingStrategy, "BatchingStrategy must not be null");
+			this.batchingStrategy = batchingStrategy;
+			return this;
+		}
+
+		/**
+		 * Builds and returns a new QdrantVectorStore instance with the configured
+		 * settings.
+		 * @return a new QdrantVectorStore instance
+		 * @throws IllegalStateException if the builder configuration is invalid
+		 */
+		@Override
+		public QdrantVectorStore build() {
+			validate();
+			return new QdrantVectorStore(this);
+		}
+
+	}
+
 }

vector-stores/spring-ai-qdrant-store/src/test/java/org/springframework/ai/vectorstore/qdrant/QdrantVectorStoreIT.java

@@ -254,7 +254,11 @@ public QdrantClient qdrantClient() {
 
 		@Bean
 		public VectorStore qdrantVectorStore(EmbeddingModel embeddingModel, QdrantClient qdrantClient) {
-			return new QdrantVectorStore(qdrantClient, COLLECTION_NAME, embeddingModel, true);
+			return QdrantVectorStore.builder(qdrantClient)
+				.collectionName(COLLECTION_NAME)
+				.embeddingModel(embeddingModel)
+				.initializeSchema(true)
+				.build();
 		}
 
 		@Bean

vector-stores/spring-ai-qdrant-store/src/test/java/org/springframework/ai/vectorstore/qdrant/QdrantVectorStoreObservationIT.java

@@ -195,8 +195,14 @@ public QdrantClient qdrantClient() {
 		@Bean
 		public VectorStore qdrantVectorStore(EmbeddingModel embeddingModel, QdrantClient qdrantClient,
 				ObservationRegistry observationRegistry) {
-			return new QdrantVectorStore(qdrantClient, COLLECTION_NAME, embeddingModel, true, observationRegistry, null,
-					new TokenCountBatchingStrategy());
+			return QdrantVectorStore.builder(qdrantClient)
+				.collectionName(COLLECTION_NAME)
+				.embeddingModel(embeddingModel)
+				.initializeSchema(true)
+				.observationRegistry(observationRegistry)
+				.customObservationConvention(null)
+				.batchingStrategy(new TokenCountBatchingStrategy())
+				.build();
 		}
 
 		@Bean