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/*
* 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.
*/
// scalastyle:off println
package main.scala
import scala.collection.mutable.{ListBuffer, Queue}
import org.apache.spark.{SparkConf, SparkContext, SparkSession}
import org.apache.spark.rdd.RDD
case class Person(name: String, age: Int)
object SparkSqlExample {
def main(args: Array[String]) {
val conf = sys.env.get("SPARK_AUDIT_MASTER") match {
case Some(master) => new SparkConf().setAppName("Simple Sql App").setMaster(master)
case None => new SparkConf().setAppName("Simple Sql App")
}
val sc = new SparkContext(conf)
val sparkSession = SparkSession.builder
.enableHiveSupport()
.getOrCreate()
import sparkSession._
sql("DROP TABLE IF EXISTS src")
sql("CREATE TABLE IF NOT EXISTS src (key INT, value STRING)")
sql("LOAD DATA LOCAL INPATH 'data.txt' INTO TABLE src")
val results = sql("FROM src SELECT key, value WHERE key >= 0 AND KEY < 5").collect()
results.foreach(println)
def test(f: => Boolean, failureMsg: String) = {
if (!f) {
println(failureMsg)
System.exit(-1)
}
}
test(results.size == 5, "Unexpected number of selected elements: " + results)
println("Test succeeded")
sc.stop()
}
}
// scalastyle:on println
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