fix(chroma): handle collection not found exception during initialization

Add try-catch block to handle HttpClientErrorException.NotFound when getting collection during initialization. This prevents initialization failures when the collection doesn't exist yet.

Signed-off-by: hanjie <hanjiehu@zksite.com>

Author: zksite

vector-stores/spring-ai-chroma-store/src/main/java/org/springframework/ai/chroma/vectorstore/ChromaVectorStore.java

@@ -48,6 +48,7 @@
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.CollectionUtils;
+import org.springframework.web.client.HttpClientErrorException;
 
 /**
  * {@link ChromaVectorStore} is a concrete implementation of the {@link VectorStore}
@@ -117,7 +118,16 @@ public static Builder builder(ChromaApi chromaApi, EmbeddingModel embeddingModel
 	@Override
 	public void afterPropertiesSet() throws Exception {
 		if (!this.initialized) {
-			var collection = this.chromaApi.getCollection(this.tenantName, this.databaseName, this.collectionName);
+			//if the collection doesn't exist, chromaApi.getCollection will throw an exception
+			ChromaApi.Collection collection = null;
+			try {
+				collection = this.chromaApi.getCollection(this.tenantName, this.databaseName, this.collectionName);
+			}
+			catch (Exception ex) {
+				if (!(ex.getCause() instanceof HttpClientErrorException.NotFound)) {
+					throw ex;
+				}
+			}
 			if (collection == null) {
 				if (this.initializeSchema) {
 					var tenant = this.chromaApi.getTenant(this.tenantName);