84 lines
3.1 KiB
Java
84 lines
3.1 KiB
Java
package eu.dnetlib.dhp.oa.graph.dump.eosc;
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import eu.dnetlib.dhp.application.ArgumentApplicationParser;
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import eu.dnetlib.dhp.schema.oaf.Datasource;
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import org.apache.commons.io.IOUtils;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.FSDataOutputStream;
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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.api.java.function.MapFunction;
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import org.apache.spark.sql.*;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import javax.rmi.CORBA.Util;
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import java.io.BufferedWriter;
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import java.io.IOException;
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import java.io.OutputStreamWriter;
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import java.io.Serializable;
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import java.nio.charset.StandardCharsets;
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import java.util.Optional;
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import static eu.dnetlib.dhp.common.SparkSessionSupport.runWithSparkSession;
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/**
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* @author miriam.baglioni
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* @Date 20/09/23
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*/
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public class EoscDatasourceId implements Serializable {
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private static final Logger log = LoggerFactory.getLogger(EoscDatasourceId.class);
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private static String EOSC = "10|openaire____::2e06c1122c7df43765fdcf91080824fa";
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public static void main(String[] args) throws Exception {
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String jsonConfiguration = IOUtils
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.toString(
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SaveCommunityMap.class
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.getResourceAsStream(
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"/eu/dnetlib/dhp/oa/graph/dump/eosc_identifiers_parameters.json"));
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final ArgumentApplicationParser parser = new ArgumentApplicationParser(jsonConfiguration);
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parser.parseArgument(args);
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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 nameNode = parser.get("nameNode");
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log.info("nameNode: {}", nameNode);
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final String outputPath = parser.get("outputPath");
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log.info("outputPath: {}", outputPath);
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final String inputPath = parser.get("inputPath");
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log.info("inputPath: {}", inputPath);
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SparkConf conf = new SparkConf();
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runWithSparkSession(
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conf,
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isSparkSessionManaged,
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spark -> {
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Utils.removeOutputDir(spark, outputPath);
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mapEoscIdentifier(spark, inputPath, outputPath);
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});
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}
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private static void mapEoscIdentifier(SparkSession spark, String inputPath, String outputPath){
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spark.read()
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.schema(Encoders.bean(Datasource.class).schema())
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.json(inputPath + "/datasource")
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.withColumn("collfrom", functions.explode(new Column("collectedfrom.key")))
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.filter("collfrom == " + EOSC)
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.withColumn("orId", functions.explode(new Column("originalId")))
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.filter(new Column("orId").startsWith("eosc"))
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.select(
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new Column("id").as("graphId"),
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new Column("orId").as("eoscId"));
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}
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}
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