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From "ASF GitHub Bot (Jira)" <j...@apache.org>
Subject [jira] [Work logged] (HIVE-22747) Break up DDLSemanticAnalyzer - extract Table info and lock analyzers
Date Tue, 11 Feb 2020 18:34:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-22747?focusedWorklogId=385357&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-385357
]

ASF GitHub Bot logged work on HIVE-22747:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 11/Feb/20 18:33
            Start Date: 11/Feb/20 18:33
    Worklog Time Spent: 10m 
      Work Description: miklosgergely commented on pull request #882: HIVE-22747 Break up
DDLSemanticAnalyzer - extract Table info and lock analyzers
URL: https://github.com/apache/hive/pull/882#discussion_r377820124
 
 

 ##########
 File path: ql/src/java/org/apache/hadoop/hive/ql/ddl/table/info/TableInfoUtils.java
 ##########
 @@ -0,0 +1,53 @@
+/*
+ * 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.hadoop.hive.ql.ddl.table.info;
+
+import java.util.Map;
+
+import org.apache.hadoop.hive.ql.ErrorMsg;
+import org.apache.hadoop.hive.ql.ddl.table.partition.PartitionUtils;
+import org.apache.hadoop.hive.ql.metadata.Hive;
+import org.apache.hadoop.hive.ql.metadata.HiveException;
+import org.apache.hadoop.hive.ql.metadata.Table;
+import org.apache.hadoop.hive.ql.parse.SemanticException;
+
+/**
+ * Utilities used by table information DDL commands.
+ */
+public final class TableInfoUtils {
+  private TableInfoUtils() {
+    throw new UnsupportedOperationException("TableInfoUtils should not be instantiated");
+  }
+
+  public static void validateDatabase(Hive db, String databaseName) throws SemanticException
{
+    try {
+      if (!db.databaseExists(databaseName)) {
+        throw new SemanticException(ErrorMsg.DATABASE_NOT_EXISTS.getMsg(databaseName));
+      }
+    } catch (HiveException e) {
+      throw new SemanticException(ErrorMsg.DATABASE_NOT_EXISTS.getMsg(databaseName), e);
+    }
+  }
+
+  public static void validateTable(Hive db, Table table, Map<String, String> partSpec)
throws SemanticException {
+    if (partSpec != null) {
 
 Review comment:
   It will be moved to Hive.
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 385357)
    Time Spent: 1.5h  (was: 1h 20m)

> Break up DDLSemanticAnalyzer - extract Table info and lock analyzers
> --------------------------------------------------------------------
>
>                 Key: HIVE-22747
>                 URL: https://issues.apache.org/jira/browse/HIVE-22747
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Miklos Gergely
>            Assignee: Miklos Gergely
>            Priority: Major
>              Labels: pull-request-available, refactor-ddl
>         Attachments: HIVE-22747.01.patch, HIVE-22747.02.patch
>
>          Time Spent: 1.5h
>  Remaining Estimate: 0h
>
> DDLSemanticAnalyzer is a huge class, more than 4000 lines long. The goal is to refactor
it in order to have everything cut into more handleable classes under the packageĀ  org.apache.hadoop.hive.ql.exec.ddl:
>  * have a separate class for each analyzers
>  * have a package for each operation, containing an analyzer, a description, and an operation,
so the amount of classes under a package is more manageable
> Step #13: extract the table info and lock related analyzers from DDLSemanticAnalyzer,
and move them under the new package.



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