forked from D-Net/dnet-hadoop
37 lines
1.4 KiB
Java
37 lines
1.4 KiB
Java
package eu.dnetlib.dhp.graph;
|
|
|
|
import eu.dnetlib.dhp.application.ArgumentApplicationParser;
|
|
import org.apache.commons.io.IOUtils;
|
|
import org.apache.hadoop.fs.FileSystem;
|
|
import org.apache.hadoop.fs.Path;
|
|
import org.apache.spark.sql.SparkSession;
|
|
|
|
public class SparkGraphIndexingJob {
|
|
|
|
private final static String ENTITY_NODES_PATH = "/tmp/entity_node";
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
|
|
final ArgumentApplicationParser parser = new ArgumentApplicationParser(IOUtils.toString(SparkGraphIndexingJob.class.getResourceAsStream("/eu/dnetlib/dhp/graph/input_graph_parameters.json")));
|
|
parser.parseArgument(args);
|
|
final SparkSession spark = SparkSession
|
|
.builder()
|
|
.appName(SparkGraphIndexingJob.class.getSimpleName())
|
|
.master(parser.get("master"))
|
|
.config("hive.metastore.uris", parser.get("hive_metastore_uris"))
|
|
.enableHiveSupport()
|
|
.getOrCreate();
|
|
|
|
final String inputPath = parser.get("sourcePath");
|
|
final String hiveDbName = parser.get("hive_db_name");
|
|
|
|
final FileSystem fs = FileSystem.get(spark.sparkContext().hadoopConfiguration());
|
|
if (fs.exists(new Path(ENTITY_NODES_PATH))) {
|
|
fs.delete(new Path(ENTITY_NODES_PATH), true);
|
|
}
|
|
|
|
new GraphJoiner().join(spark, inputPath, hiveDbName, ENTITY_NODES_PATH);
|
|
}
|
|
|
|
}
|