dnet-hadoop/dhp-workflows/dhp-graph-provision-scholex.../src/main/java/eu/dnetlib/dhp/provision/SparkExtractRelationCount.java

35 lines
1.1 KiB
Java

package eu.dnetlib.dhp.provision;
import org.apache.commons.io.IOUtils;
import org.apache.spark.sql.*;
import eu.dnetlib.dhp.application.ArgumentApplicationParser;
/**
* SparkExtractRelationCount is a spark job that takes in input relation RDD and retrieve for each item in relation
* which are the number of - Related Dataset - Related Publication - Related Unknown
*/
public class SparkExtractRelationCount {
public static void main(String[] args) throws Exception {
final ArgumentApplicationParser parser = new ArgumentApplicationParser(
IOUtils
.toString(
SparkExtractRelationCount.class
.getResourceAsStream(
"/eu/dnetlib/dhp/provision/input_related_entities_parameters.json")));
parser.parseArgument(args);
final SparkSession spark = SparkSession
.builder()
.appName(SparkExtractRelationCount.class.getSimpleName())
.master(parser.get("master"))
.getOrCreate();
final String workingDirPath = parser.get("workingDirPath");
final String relationPath = parser.get("relationPath");
DatasetJoiner.startJoin(spark, relationPath, workingDirPath + "/relatedItemCount");
}
}