Merge branch 'feature_20250428_empty_feature_flag' of algorithm/recommend-server into master

recommend-server-service/src/main/java/com/tzld/piaoquan/recommend/server/service/RecommendService.java

@@ -227,6 +227,15 @@ public class RecommendService {
                 map.put("pushFromRank", JSONUtils.toJson(v.getPushFromRank()));
                 map.put("abExpCode", JSONUtils.toJson(param.getAbExpCodes()));
 
+                long featureTableSize = 0;
+                if (MapUtils.isNotEmpty(v.getMetaFeatureMap())) {
+                    featureTableSize = v.getMetaFeatureMap().entrySet()
+                            .stream()
+                            .filter(e -> MapUtils.isNotEmpty(e.getValue()))
+                            .count();
+                }
+                map.put("featureTableSize", String.valueOf(featureTableSize));
+
                 return map;
 
             }).collect(Collectors.toList());