rerank buildRankFeaturePhaseShardContext add SearchContext parameter

TextSimilarityRankBuilder add check field

Author: weizijun

x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/InferenceFeatures.java

@@ -30,6 +30,9 @@ public class InferenceFeatures implements FeatureSpecification {
     private static final NodeFeature TEST_RERANKING_SERVICE_PARSE_TEXT_AS_SCORE = new NodeFeature(
         "test_reranking_service.parse_text_as_score"
     );
+    private static final NodeFeature RERANKING_CHECK_FIELD_EXISTS = new NodeFeature(
+        "text_similarity_reranker.check_field_exists"
+    );
 
     @Override
     public Set<NodeFeature> getTestFeatures() {
@@ -50,6 +53,7 @@ public Set<NodeFeature> getTestFeatures() {
             SEMANTIC_TEXT_HIGHLIGHTER_DEFAULT,
             SEMANTIC_KNN_FILTER_FIX,
             TEST_RERANKING_SERVICE_PARSE_TEXT_AS_SCORE,
+            RERANKING_CHECK_FIELD_EXISTS,
             SemanticTextFieldMapper.SEMANTIC_TEXT_BIT_VECTOR_SUPPORT,
             SemanticTextFieldMapper.SEMANTIC_TEXT_HANDLE_EMPTY_INPUT
         );

x-pack/plugin/inference/src/yamlRestTest/resources/rest-api-spec/test/inference/70_text_similarity_rank_retriever.yml

@@ -379,3 +379,29 @@ setup:
   - match: { hits.total.value: 1 }
   - length: { hits.hits: 1 }
   - match: { hits.hits.0._id: "doc_1" }
+
+---
+"Text similarity reranking fails if the rerank field is missing":
+  - requires:
+      cluster_features: "text_similarity_reranker.check_field_exists"
+      reason: "text_similarity_reranker will check if field exists"
+
+  - do:
+      catch: /field \[missing_field\] does not exist in mapping/
+      search:
+        index: test-index
+        body:
+          track_total_hits: true
+          fields: [ "text", "topic" ]
+          retriever:
+            text_similarity_reranker:
+              retriever:
+                standard:
+                  query:
+                    term:
+                      topic: "science"
+              rank_window_size: 10
+              inference_id: my-rerank-model
+              inference_text: "How often does the moon hide the sun?"
+              field: missing_field
+          size: 10