za.co.absa.spline.example.batch.CodelessInitExampleJob.scala Maven / Gradle / Ivy
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/*
* Copyright 2019 ABSA Group Limited
*
* Licensed 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 za.co.absa.spline.example.batch
import org.apache.spark.sql.SaveMode
import za.co.absa.spline.SparkApp
/**
* An example job where no explicit Spline code was used to initialize Spline. Only Spark configuration was used.
*/
object CodelessInitExampleJob extends SparkApp(
name = "Codeless Init Example Job",
// Spark configuration used to register Spline listener for codeless init.
conf = Seq(("spark.sql.queryExecutionListeners", "za.co.absa.spline.harvester.listener.SplineQueryExecutionListener"))) {
// A business logic of a spark job ...
spark.read
.option("header", "true")
.option("inferSchema", "true")
.csv("data/input/batch/wikidata.csv")
.as("source")
.filter($"total_response_size" > 1000)
.filter($"count_views" > 10)
.select($"page_title".as("page"), $"count_views")
.write.mode(SaveMode.Overwrite).parquet("data/output/batch/codeless_init_job_results")
}