null check

Signed-off-by: zhichao-aws <[email protected]>
opensearch-project · Sep 25, 2023 · 6878c01 · 6878c01
1 parent 791c6ca
commit 6878c01
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/main/java/org/opensearch/neuralsearch/query/SparseEncodingQueryBuilder.java b/src/main/java/org/opensearch/neuralsearch/query/SparseEncodingQueryBuilder.java
@@ -266,7 +266,7 @@ private static void validateForRewrite(String queryText, String modelId) {
     }
 
     private static void validateFieldType(MappedFieldType fieldType) {
-        if (!fieldType.typeName().equals("rank_features")) {
+        if (null == fieldType || !fieldType.typeName().equals("rank_features")) {
             throw new IllegalArgumentException(
                 "[" + NAME + "] query only works on [rank_features] fields, " + "not [" + fieldType.typeName() + "]"
             );