[KYUUBI #2626] Replace literal by FetchType.LOG

### Why are the changes needed?

replace constant 1 with FetchType.LOG.toTFetchType()

### How was this patch tested?

using existing UTs to test it

Closes #2626 from gabrywu/fetchType.

Closes #2626

7edfc3e [gabrywu] replace constant 1 with FetchType.LOG.toTFetchType()

Authored-by: gabrywu <gabrywu@apache.org>
Signed-off-by: Cheng Pan <chengpan@apache.org>

Author: gabry-lab

kyuubi-hive-jdbc/src/main/java/org/apache/kyuubi/jdbc/hive/KyuubiConnection.java

@@ -42,6 +42,7 @@
 import org.apache.commons.lang.StringUtils;
 import org.apache.hadoop.hive.common.auth.HiveAuthUtils;
 import org.apache.hive.service.auth.*;
+import org.apache.hive.service.cli.FetchType;
 import org.apache.hive.service.cli.RowSet;
 import org.apache.hive.service.cli.RowSetFactory;
 import org.apache.hive.service.cli.session.SessionUtils;
@@ -275,7 +276,7 @@ public List<String> getExecLog() throws SQLException, ClosedOrCancelledException
 
     TFetchResultsReq fetchResultsReq =
         new TFetchResultsReq(launchEngineOpHandle, TFetchOrientation.FETCH_NEXT, fetchSize);
-    fetchResultsReq.setFetchType((short) 1);
+    fetchResultsReq.setFetchType(FetchType.LOG.toTFetchType());
 
     List<String> logs = new ArrayList<>();
     try {

kyuubi-hive-jdbc/src/main/java/org/apache/kyuubi/jdbc/hive/KyuubiStatement.java

@@ -26,6 +26,7 @@
 import java.sql.SQLWarning;
 import java.util.*;
 import org.apache.commons.lang.StringUtils;
+import org.apache.hive.service.cli.FetchType;
 import org.apache.hive.service.cli.RowSet;
 import org.apache.hive.service.cli.RowSetFactory;
 import org.apache.hive.service.rpc.thrift.*;
@@ -941,7 +942,7 @@ public List<String> getQueryLog(boolean incremental, int fetchSize)
       if (stmtHandle != null) {
         TFetchResultsReq tFetchResultsReq =
             new TFetchResultsReq(stmtHandle, getFetchOrientation(incremental), fetchSize);
-        tFetchResultsReq.setFetchType((short) 1);
+        tFetchResultsReq.setFetchType(FetchType.LOG.toTFetchType());
         tFetchResultsResp = client.FetchResults(tFetchResultsReq);
         Utils.verifySuccessWithInfo(tFetchResultsResp.getStatus());
       } else {