CosmosDB vector store auto configuration changes

- Configurable BatchingStrategy via auto configuraiton
- Minor code cleanup

spring-ai-spring-boot-autoconfigure/src/main/java/org/springframework/ai/autoconfigure/vectorstore/cosmosdb/CosmosDBVectorStoreAutoConfiguration.java

@@ -17,7 +17,10 @@
 package org.springframework.ai.autoconfigure.vectorstore.cosmosdb;
 
 import com.azure.cosmos.CosmosClientBuilder;
+
+import org.springframework.ai.embedding.BatchingStrategy;
 import org.springframework.ai.embedding.EmbeddingModel;
+import org.springframework.ai.embedding.TokenCountBatchingStrategy;
 import org.springframework.ai.vectorstore.CosmosDBVectorStore;
 import org.springframework.ai.vectorstore.CosmosDBVectorStoreConfig;
 import org.springframework.ai.vectorstore.observation.VectorStoreObservationConvention;
@@ -32,9 +35,9 @@
 
 /**
  * @author Theo van Kraay
+ * @author Soby Chacko
  * @since 1.0.0
  */
-
 @AutoConfiguration
 @ConditionalOnClass({ CosmosDBVectorStore.class, EmbeddingModel.class, CosmosAsyncClient.class })
 @EnableConfigurationProperties(CosmosDBVectorStoreProperties.class)
@@ -53,12 +56,18 @@ public CosmosAsyncClient cosmosClient(CosmosDBVectorStoreProperties properties)
 			.buildAsyncClient();
 	}
 
+	@Bean
+	@ConditionalOnMissingBean(BatchingStrategy.class)
+	BatchingStrategy batchingStrategy() {
+		return new TokenCountBatchingStrategy();
+	}
+
 	@Bean
 	@ConditionalOnMissingBean
 	public CosmosDBVectorStore cosmosDBVectorStore(ObservationRegistry observationRegistry,
 			ObjectProvider<VectorStoreObservationConvention> customObservationConvention,
 			CosmosDBVectorStoreProperties properties, CosmosAsyncClient cosmosAsyncClient,
-			EmbeddingModel embeddingModel) {
+			EmbeddingModel embeddingModel, BatchingStrategy batchingStrategy) {
 
 		CosmosDBVectorStoreConfig config = new CosmosDBVectorStoreConfig();
 		config.setDatabaseName(properties.getDatabaseName());
@@ -67,7 +76,7 @@ public CosmosDBVectorStore cosmosDBVectorStore(ObservationRegistry observationRe
 		config.setVectorStoreThoughput(properties.getVectorStoreThoughput());
 		config.setVectorDimensions(properties.getVectorDimensions());
 		return new CosmosDBVectorStore(observationRegistry, customObservationConvention.getIfAvailable(),
-				cosmosAsyncClient, config, embeddingModel);
+				cosmosAsyncClient, config, embeddingModel, batchingStrategy);
 	}
 
 }

vector-stores/spring-ai-azure-cosmos-db-store/src/main/java/org/springframework/ai/vectorstore/CosmosDBVectorStore.java

@@ -45,9 +45,9 @@
 
 /**
  * @author Theo van Kraay
+ * @author Soby Chacko
  * @since 1.0.0
  */
-
 public class CosmosDBVectorStore extends AbstractObservationVectorStore implements AutoCloseable {
 
 	private static final Logger logger = LoggerFactory.getLogger(CosmosDBVectorStore.class);
@@ -65,18 +65,24 @@ public class CosmosDBVectorStore extends AbstractObservationVectorStore implemen
 	public CosmosDBVectorStore(ObservationRegistry observationRegistry,
 			VectorStoreObservationConvention customObservationConvention, CosmosAsyncClient cosmosClient,
 			CosmosDBVectorStoreConfig properties, EmbeddingModel embeddingModel) {
+		this(observationRegistry, customObservationConvention, cosmosClient, properties, embeddingModel,
+				new TokenCountBatchingStrategy());
+	}
+
+	public CosmosDBVectorStore(ObservationRegistry observationRegistry,
+			VectorStoreObservationConvention customObservationConvention, CosmosAsyncClient cosmosClient,
+			CosmosDBVectorStoreConfig properties, EmbeddingModel embeddingModel, BatchingStrategy batchingStrategy) {
 		super(observationRegistry, customObservationConvention);
 		this.cosmosClient = cosmosClient;
 		this.properties = properties;
-		this.batchingStrategy = new TokenCountBatchingStrategy();
+		this.batchingStrategy = batchingStrategy;
 		cosmosClient.createDatabaseIfNotExists(properties.getDatabaseName()).block();
 
 		initializeContainer(properties.getContainerName(), properties.getDatabaseName(),
 				properties.getVectorStoreThoughput(), properties.getVectorDimensions(),
 				properties.getPartitionKeyPath());
 
 		this.embeddingModel = embeddingModel;
-
 	}
 
 	private void initializeContainer(String containerName, String databaseName, int vectorStoreThoughput,
@@ -94,9 +100,7 @@ private void initializeContainer(String containerName, String databaseName, int
 		PartitionKeyDefinition subpartitionKeyDefinition = new PartitionKeyDefinition();
 		List<String> pathsfromCommaSeparatedList = new ArrayList<String>();
 		String[] subpartitionKeyPaths = partitionKeyPath.split(",");
-		for (String path : subpartitionKeyPaths) {
-			pathsfromCommaSeparatedList.add(path);
-		}
+		Collections.addAll(pathsfromCommaSeparatedList, subpartitionKeyPaths);
 		if (subpartitionKeyPaths.length > 1) {
 			subpartitionKeyDefinition.setPaths(pathsfromCommaSeparatedList);
 			subpartitionKeyDefinition.setKind(PartitionKind.MULTI_HASH);
@@ -180,7 +184,7 @@ public void doAdd(List<Document> documents) {
 				.getCreateItemOperation(mapCosmosDocument(doc, doc.getEmbedding()), new PartitionKey(doc.getId()));
 			return new ImmutablePair<>(doc.getId(), operation); // Pair the document ID
 																// with the operation
-		}).collect(Collectors.toList());
+		}).toList();
 
 		try {
 			// Extract just the CosmosItemOperations from the pairs

vector-stores/spring-ai-azure-cosmos-db-store/src/test/java/org/springframework/ai/vectorstore/CosmosDBVectorStoreIT.java

@@ -42,7 +42,6 @@
  * @author Theo van Kraay
  * @since 1.0.0
  */
-
 @EnabledIfEnvironmentVariable(named = "AZURE_COSMOSDB_ENDPOINT", matches = ".+")
 @EnabledIfEnvironmentVariable(named = "AZURE_COSMOSDB_KEY", matches = ".+")
 public class CosmosDBVectorStoreIT {