/**
* 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.ambari.view.hive20.internal.query.generators;
import org.apache.ambari.view.hive20.exceptions.ServiceException;
import org.apache.commons.lang3.StringUtils;
import com.google.common.base.Optional;
public class CreateDatabaseQueryGenerator implements QueryGenerator {
public final String databaseName;
public CreateDatabaseQueryGenerator(String databaseName) {
this.databaseName = databaseName;
}
public String getDatabaseName() {
return databaseName;
}
@Override
public Optional<String> getQuery() throws ServiceException {
if(StringUtils.isEmpty(this.getDatabaseName())){
throw new ServiceException("Database name cannot be null or empty.");
}
return Optional.of("CREATE DATABASE `" + this.getDatabaseName() + "`");
}
}