dev 1.0 with rank

ad-engine-service/src/main/java/com/tzld/piaoquan/ad/engine/service/score/impl/RankServiceImpl.java

@@ -12,7 +12,6 @@ import com.tzld.piaoquan.ad.engine.service.score.param.RankRecommendRequestParam
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.context.ApplicationContext;
 import org.springframework.stereotype.Service;
 import org.springframework.util.CollectionUtils;
 
@@ -37,6 +36,13 @@ public class RankServiceImpl implements RankService {
                 getAllAdFeatureList(
                         CommonCollectionUtils.toList(request.getAdIdList(),id->id.toString())
                 );
+        //兜底方案
+        if(rankItems==null|| rankItems.size()==0){
+            AdRankItem adRankItem=new AdRankItem();
+            adRankItem.setAdId(request.getAdIdList().get(0));
+            rankItems=new ArrayList<>();
+            rankItems.add(adRankItem);
+        }
         List<AdRankItem> rankResult = ScorerUtils
                 .getScorerPipeline(
                         ScorerUtils.BASE_CONF)