dnet-hadoop/dhp-workflows/dhp-aggregation/src/main/scala/eu/dnetlib/dhp/sx/bio/ebi/SparkTransformEBILinksToOaf...

67 lines
2.4 KiB
Scala

package eu.dnetlib.dhp.sx.bio.ebi
import com.fasterxml.jackson.databind.ObjectMapper
import eu.dnetlib.dhp.application.AbstractScalaApplication
import eu.dnetlib.dhp.collection.CollectionUtils
import eu.dnetlib.dhp.common.Constants.MDSTORE_DATA_PATH
import eu.dnetlib.dhp.schema.mdstore.MDStoreVersion
import eu.dnetlib.dhp.schema.oaf.Oaf
import eu.dnetlib.dhp.sx.bio.BioDBToOAF
import eu.dnetlib.dhp.sx.bio.BioDBToOAF.EBILinkItem
import org.apache.spark.sql.{Dataset, Encoder, Encoders, SparkSession}
import org.slf4j.{Logger, LoggerFactory}
class SparkTransformEBILinksToOaf(propertyPath: String, args: Array[String], log: Logger)
extends AbstractScalaApplication(propertyPath, args, log: Logger) {
def transformLinks(spark: SparkSession, sourcePath: String, outputBasePath: String, targetPath: String) = {
implicit val PMEncoder: Encoder[Oaf] = Encoders.kryo(classOf[Oaf])
import spark.implicits._
val ebLinks: Dataset[EBILinkItem] = spark.read
.load(sourcePath)
.as[EBILinkItem]
.filter(l => l.links != null && l.links.startsWith("{"))
CollectionUtils.saveDataset(
ebLinks
.flatMap(j => BioDBToOAF.parse_ebi_links(j.links))
.filter(p => BioDBToOAF.EBITargetLinksFilter(p))
.flatMap(p => BioDBToOAF.convertEBILinksToOaf(p)),
targetPath
)
reportTotalSize(targetPath, outputBasePath)
}
/** Here all the spark applications runs this method
* where the whole logic of the spark node is defined
*/
override def run(): Unit = {
val sourcePath = parser.get("sourcePath")
log.info(s"sourcePath is '$sourcePath'")
val mdstoreOutputVersion = parser.get("mdstoreOutputVersion")
log.info(s"mdstoreOutputVersion is '$mdstoreOutputVersion'")
val mapper = new ObjectMapper()
val cleanedMdStoreVersion = mapper.readValue(mdstoreOutputVersion, classOf[MDStoreVersion])
val outputBasePath = cleanedMdStoreVersion.getHdfsPath
log.info(s"outputBasePath is '$outputBasePath'")
val targetPath = s"$outputBasePath$MDSTORE_DATA_PATH"
log.info(s"targetPath is '$targetPath'")
transformLinks(spark, sourcePath, outputBasePath, targetPath)
}
}
object SparkTransformEBILinksToOaf {
val log: Logger = LoggerFactory.getLogger(SparkTransformEBILinksToOaf.getClass)
def main(args: Array[String]): Unit = {
new SparkTransformEBILinksToOaf("/eu/dnetlib/dhp/sx/bio/ebi/transform_ebi_to_df_params.json", args, log)
.initialize()
.run()
}
}