79 lines
2.4 KiB
Java
79 lines
2.4 KiB
Java
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package eu.dnetlib.dhp.broker.oa;
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import static eu.dnetlib.dhp.common.SparkSessionSupport.runWithSparkSession;
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import java.util.Optional;
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import org.apache.commons.io.IOUtils;
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import org.apache.spark.SparkConf;
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import org.apache.spark.sql.Dataset;
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import org.apache.spark.sql.Encoders;
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import org.apache.spark.sql.SaveMode;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import eu.dnetlib.dhp.application.ArgumentApplicationParser;
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import eu.dnetlib.dhp.broker.oa.util.ClusterUtils;
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import eu.dnetlib.dhp.broker.oa.util.ConversionUtils;
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import eu.dnetlib.dhp.broker.oa.util.aggregators.withRels.RelatedPublication;
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import eu.dnetlib.dhp.schema.oaf.Publication;
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import eu.dnetlib.dhp.schema.oaf.Relation;
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public class GenerateRelatedPublications {
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private static final Logger log = LoggerFactory.getLogger(GenerateRelatedPublications.class);
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private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
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public static void main(final String[] args) throws Exception {
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final ArgumentApplicationParser parser = new ArgumentApplicationParser(
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IOUtils
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.toString(
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GenerateRelatedPublications.class
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.getResourceAsStream("/eu/dnetlib/dhp/broker/oa/generate_relations.json")));
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parser.parseArgument(args);
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final Boolean isSparkSessionManaged = Optional
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.ofNullable(parser.get("isSparkSessionManaged"))
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.map(Boolean::valueOf)
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.orElse(Boolean.TRUE);
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log.info("isSparkSessionManaged: {}", isSparkSessionManaged);
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final String graphPath = parser.get("graphPath");
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log.info("graphPath: {}", graphPath);
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final String relsPath = parser.get("relsPath");
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log.info("relsPath: {}", relsPath);
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final SparkConf conf = new SparkConf();
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runWithSparkSession(conf, isSparkSessionManaged, spark -> {
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ClusterUtils.removeDir(spark, relsPath);
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final Dataset<Publication> pubs = ClusterUtils
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.readPath(spark, graphPath + "/publication", Publication.class);
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final Dataset<Relation> rels = ClusterUtils.readPath(spark, graphPath + "/relation", Relation.class);
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rels
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.joinWith(pubs, pubs.col("id").equalTo(rels.col("target")), "inner")
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.map(
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t -> new RelatedPublication(
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t._1.getSource(),
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t._1.getRelType(),
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ConversionUtils.oafPublicationToBrokerPublication(t._2)),
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Encoders.bean(RelatedPublication.class))
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.write()
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.mode(SaveMode.Overwrite)
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.json(relsPath);
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});
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}
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}
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