/*
* 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.parse.repl.load.message;
import org.apache.hadoop.hive.metastore.messaging.DropFunctionMessage;
import org.apache.hadoop.hive.ql.exec.FunctionUtils;
import org.apache.hadoop.hive.ql.exec.Task;
import org.apache.hadoop.hive.ql.exec.TaskFactory;
import org.apache.hadoop.hive.ql.parse.SemanticException;
import org.apache.hadoop.hive.ql.plan.DropFunctionDesc;
import org.apache.hadoop.hive.ql.plan.FunctionWork;
import java.io.Serializable;
import java.util.Collections;
import java.util.List;
public class DropFunctionHandler extends AbstractMessageHandler {
@Override
public List<Task<? extends Serializable>> handle(Context context)
throws SemanticException {
DropFunctionMessage msg = deserializer.getDropFunctionMessage(context.dmd.getPayload());
String actualDbName = context.isDbNameEmpty() ? msg.getDB() : context.dbName;
String qualifiedFunctionName =
FunctionUtils.qualifyFunctionName(msg.getFunctionName(), actualDbName);
DropFunctionDesc desc = new DropFunctionDesc(qualifiedFunctionName, false);
Task<FunctionWork> dropFunctionTask = TaskFactory.get(new FunctionWork(desc), context.hiveConf);
context.log.debug(
"Added drop function task : {}:{}", dropFunctionTask.getId(), desc.getFunctionName()
);
databasesUpdated.put(actualDbName, context.dmd.getEventTo());
return Collections.singletonList(dropFunctionTask);
}
}