cloud-fan commented on a change in pull request #28671:
URL: https://github.com/apache/spark/pull/28671#discussion_r432237754



##########
File path: 
sql/hive-thriftserver/src/main/scala/org/apache/spark/sql/hive/thriftserver/SparkOperationUtils.scala
##########
@@ -0,0 +1,78 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.sql.hive.thriftserver
+
+import org.apache.hive.service.cli.session.HiveSession
+
+import org.apache.spark.SparkContext
+import org.apache.spark.sql.{SparkSession, SQLContext}
+import org.apache.spark.sql.catalyst.catalog.CatalogTableType
+import org.apache.spark.sql.catalyst.catalog.CatalogTableType.{EXTERNAL, 
MANAGED, VIEW}
+import org.apache.spark.sql.internal.SQLConf
+import org.apache.spark.util.Utils
+
+/**
+ * Utils for Spark operations.
+ */
+private[hive] trait SparkOperationUtils {

Review comment:
       how about
   ```
   trait SparkOperationUtils extends Operation {
     ...
     
     abstract override def run(): Unit = {
       withLocalProperties {
         super.run()
       }
     }
   }
   ```
   
   You can try this in scala shell
   ```
   class AA {
     def f(): Int = 1
   }
   
   trait BB extends AA {
     abstract override def f(): Int = super.f() + 1
   }
   
   class CC extends AA with BB
   
   new CC().f // print 2
   ```




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