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