/*
* Copyright © 2016 Cask Data, Inc.
*
* 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 co.cask.cdap.spark.app;
import co.cask.cdap.api.spark.JavaSparkMain;
import org.apache.spark.api.java.JavaSparkContext;
import org.apache.spark.api.java.function.Function2;
import java.util.Arrays;
/**
* A Spark program that has a static main method instead of extending from {@link JavaSparkMain}
*/
public class ClassicSparkProgram {
public static void main(String[] args) throws Exception {
JavaSparkContext jsc = new JavaSparkContext();
int result = jsc.parallelize(Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10))
.reduce(new Function2<Integer, Integer, Integer>() {
@Override
public Integer call(Integer v1, Integer v2) throws Exception {
return v1 + v2;
}
});
if (result != 55) {
throw new Exception("Expected result to be 55");
}
}
}