org.apache.hadoop.hive.ql.ddl.workloadmanagement.trigger.drop.DropWMTriggerAnalyzer Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
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* 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,
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* See the License for the specific language governing permissions and
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*/
package org.apache.hadoop.hive.ql.ddl.workloadmanagement.trigger.drop;
import org.apache.hadoop.hive.ql.QueryState;
import org.apache.hadoop.hive.ql.ddl.DDLWork;
import org.apache.hadoop.hive.ql.ddl.DDLSemanticAnalyzerFactory.DDLType;
import org.apache.hadoop.hive.ql.ddl.DDLUtils;
import org.apache.hadoop.hive.ql.exec.TaskFactory;
import org.apache.hadoop.hive.ql.parse.ASTNode;
import org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer;
import org.apache.hadoop.hive.ql.parse.HiveParser;
import org.apache.hadoop.hive.ql.parse.SemanticException;
/**
* Analyzer for drop trigger commands.
*/
@DDLType(types = HiveParser.TOK_DROP_TRIGGER)
public class DropWMTriggerAnalyzer extends BaseSemanticAnalyzer {
public DropWMTriggerAnalyzer(QueryState queryState) throws SemanticException {
super(queryState);
}
@Override
public void analyzeInternal(ASTNode root) throws SemanticException {
if (root.getChildCount() != 2) {
throw new SemanticException("Invalid syntax for drop trigger.");
}
String resourcePlanName = unescapeIdentifier(root.getChild(0).getText());
String triggerName = unescapeIdentifier(root.getChild(1).getText());
DropWMTriggerDesc desc = new DropWMTriggerDesc(resourcePlanName, triggerName);
rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(), desc)));
DDLUtils.addServiceOutput(conf, getOutputs());
}
}