Qdrant improvements

- Update docs
 - Allow colleciton auto-creation if missing
 - Add cloud IT : QdrantVectorStoreCloudAutoConfigurationIT
 - Add auto-configuration properties tests: PgVectorStorePropertiesTests

vector-stores/spring-ai-qdrant/README.md

@@ -1 +1,22 @@
-Qdrant Vector Store
+# Qdrant Vector Store
+
+[Reference Documentation](https://docs.spring.io/spring-ai/reference/0.8-SNAPSHOT/api/vectordbs/qdrant.html#qdrant-vectorstore-properties)
+
+## Run locally
+
+### Accessing the Web UI
+
+First, run the Docker container:
+
+```
+docker run -p 6333:6333 -p 6334:6334 \
+    -v $(pwd)/qdrant_storage:/qdrant/storage:z \
+    qdrant/qdrant
+```
+
+The GUI is available at http://localhost:6333/dashboard
+
+## Qdrant references
+
+- https://qdrant.tech/documentation/interfaces/
+- https://github.com/qdrant/java-client

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

@@ -30,10 +30,13 @@ import org.springframework.ai.document.Document;
 import org.springframework.ai.embedding.EmbeddingClient;
 import org.springframework.ai.vectorstore.SearchRequest;
 import org.springframework.ai.vectorstore.VectorStore;
+import org.springframework.beans.factory.InitializingBean;
 import org.springframework.util.Assert;
 
 import io.qdrant.client.QdrantClient;
 import io.qdrant.client.QdrantGrpcClient;
+import io.qdrant.client.grpc.Collections.Distance;
+import io.qdrant.client.grpc.Collections.VectorParams;
 import io.qdrant.client.grpc.JsonWithInt.Value;
 import io.qdrant.client.grpc.Points.Filter;
 import io.qdrant.client.grpc.Points.PointId;
@@ -47,9 +50,10 @@ import io.qdrant.client.grpc.Points.UpdateStatus;
  * and similarity searching of documents in a Qdrant collection.
  *
  * @author Anush Shetty
+ * @author Christian Tzolov
  * @since 0.8.1
  */
-public class QdrantVectorStore implements VectorStore {
+public class QdrantVectorStore implements VectorStore, InitializingBean {
 
 	private static final String CONTENT_FIELD_NAME = "doc_content";
 
@@ -326,4 +330,25 @@ public class QdrantVectorStore implements VectorStore {
 		return doubleList.stream().map(d -> d.floatValue()).toList();
 	}
 
+	@Override
+	public void afterPropertiesSet() throws Exception {
+		// Create the collection if it does not exist.
+		if (!isCollectionExists()) {
+			var vectorParams = VectorParams.newBuilder()
+				.setDistance(Distance.Cosine)
+				.setSize(this.embeddingClient.dimensions())
+				.build();
+			this.qdrantClient.createCollectionAsync(this.collectionName, vectorParams).get();
+		}
+	}
+
+	private boolean isCollectionExists() {
+		try {
+			return this.qdrantClient.listCollectionsAsync().get().stream().anyMatch(c -> c.equals(this.collectionName));
+		}
+		catch (Exception e) {
+			throw new RuntimeException(e);
+		}
+	}
+
 }