forked from D-Net/dnet-hadoop
55 lines
2.2 KiB
Scala
55 lines
2.2 KiB
Scala
package eu.dnetlib.doiboost.crossref
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import eu.dnetlib.dhp.application.ArgumentApplicationParser
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import eu.dnetlib.dhp.schema.oaf
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import eu.dnetlib.dhp.schema.oaf.{Oaf, Publication, Relation, Dataset => OafDataset}
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import org.apache.commons.io.IOUtils
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import org.apache.hadoop.io.{IntWritable, Text}
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import org.apache.spark.SparkConf
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import org.apache.spark.rdd.RDD
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import org.apache.spark.sql.{Dataset, Encoder, Encoders, SaveMode, SparkSession}
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import org.slf4j.{Logger, LoggerFactory}
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case class Reference(author: String, firstPage: String) {}
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object SparkMapDumpIntoOAF {
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def main(args: Array[String]): Unit = {
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val logger: Logger = LoggerFactory.getLogger(SparkMapDumpIntoOAF.getClass)
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val conf: SparkConf = new SparkConf()
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val parser = new ArgumentApplicationParser(IOUtils.toString(SparkMapDumpIntoOAF.getClass.getResourceAsStream("/eu/dnetlib/dhp/doiboost/convert_map_to_oaf_params.json")))
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parser.parseArgument(args)
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val spark: SparkSession =
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SparkSession
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.builder()
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.config(conf)
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.appName(SparkMapDumpIntoOAF.getClass.getSimpleName)
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.master(parser.get("master")).getOrCreate()
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implicit val oafEncoder: Encoder[Oaf] = Encoders.kryo[Oaf]
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implicit val mapEncoderPubs: Encoder[Publication] = Encoders.kryo[Publication]
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implicit val mapEncoderRelatons: Encoder[Relation] = Encoders.kryo[Relation]
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implicit val mapEncoderDatasets: Encoder[oaf.Dataset] = Encoders.kryo[OafDataset]
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val targetPath = parser.get("targetPath")
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import spark.implicits._
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spark.read.load(parser.get("sourcePath")).as[CrossrefDT]
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.flatMap(k => Crossref2Oaf.convert(k.json))
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.filter(o => o != null)
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.write.mode(SaveMode.Overwrite).save(s"$targetPath/mixObject")
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val ds:Dataset[Oaf] = spark.read.load(s"$targetPath/mixObject").as[Oaf]
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ds.filter(o => o.isInstanceOf[Publication]).map(o => o.asInstanceOf[Publication]).write.mode(SaveMode.Overwrite).save(s"$targetPath/crossrefPublication")
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ds.filter(o => o.isInstanceOf[Relation]).map(o => o.asInstanceOf[Relation]).write.mode(SaveMode.Overwrite).save(s"$targetPath/crossrefRelation")
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ds.filter(o => o.isInstanceOf[OafDataset]).map(o => o.asInstanceOf[OafDataset]).write.mode(SaveMode.Overwrite).save(s"$targetPath/crossrefDataset")
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}
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} |