108 lines
3.9 KiB
Java
108 lines
3.9 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.SparkSession;
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import org.apache.spark.util.LongAccumulator;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import eu.dnetlib.broker.objects.OaBrokerRelatedDatasource;
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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.DatasourceRelationsAccumulator;
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import eu.dnetlib.dhp.broker.oa.util.aggregators.withRels.RelatedDatasource;
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import eu.dnetlib.dhp.schema.oaf.Datasource;
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import eu.dnetlib.dhp.schema.oaf.OtherResearchProduct;
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import eu.dnetlib.dhp.schema.oaf.Publication;
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import eu.dnetlib.dhp.schema.oaf.Result;
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import eu.dnetlib.dhp.schema.oaf.Software;
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import scala.Tuple3;
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public class PrepareRelatedDatasourcesJob {
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private static final Logger log = LoggerFactory.getLogger(PrepareRelatedDatasourcesJob.class);
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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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PrepareRelatedDatasourcesJob.class
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.getResourceAsStream("/eu/dnetlib/dhp/broker/oa/common_params.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 workingPath = parser.get("workingPath");
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log.info("workingPath: {}", workingPath);
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final String relsPath = workingPath + "/relatedDatasources";
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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 LongAccumulator total = spark.sparkContext().longAccumulator("total_datasources");
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final Dataset<Tuple3<String, String, String>> rels = prepareResultTuples(
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spark, graphPath, Publication.class)
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.union(prepareResultTuples(spark, graphPath, eu.dnetlib.dhp.schema.oaf.Dataset.class))
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.union(prepareResultTuples(spark, graphPath, Software.class))
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.union(prepareResultTuples(spark, graphPath, OtherResearchProduct.class));
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final Dataset<OaBrokerRelatedDatasource> datasources = ClusterUtils
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.readPath(spark, graphPath + "/datasource", Datasource.class)
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.map(ConversionUtils::oafDatasourceToBrokerDatasource, Encoders.bean(OaBrokerRelatedDatasource.class));
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final Dataset<RelatedDatasource> dataset = rels
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.joinWith(datasources, datasources.col("openaireId").equalTo(rels.col("_2")), "inner")
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.map(t -> {
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final RelatedDatasource r = new RelatedDatasource();
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r.setSource(t._1._1());
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r.setRelDatasource(t._2);
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r.getRelDatasource().setRelType(t._1._3());
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return r;
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}, Encoders.bean(RelatedDatasource.class));
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ClusterUtils.save(dataset, relsPath, RelatedDatasource.class, total);
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});
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}
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private static final Dataset<Tuple3<String, String, String>> prepareResultTuples(final SparkSession spark,
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final String graphPath,
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final Class<? extends Result> sourceClass) {
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return ClusterUtils
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.readPath(spark, graphPath + "/" + sourceClass.getSimpleName().toLowerCase(), sourceClass)
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.filter(r -> !ClusterUtils.isDedupRoot(r.getId()))
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.filter(r -> r.getDataInfo().getDeletedbyinference())
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.map(
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r -> DatasourceRelationsAccumulator.calculateTuples(r),
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Encoders.bean(DatasourceRelationsAccumulator.class))
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.flatMap(
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acc -> acc.getRels().iterator(),
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Encoders.tuple(Encoders.STRING(), Encoders.STRING(), Encoders.STRING()));
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}
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}
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