114 lines
3.7 KiB
Java
114 lines
3.7 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.io.IOException;
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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.commons.lang3.StringUtils;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.FileStatus;
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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.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.google.gson.Gson;
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import eu.dnetlib.broker.api.ShortEventMessage;
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import eu.dnetlib.broker.objects.OaBrokerEventPayload;
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import eu.dnetlib.dhp.application.ArgumentApplicationParser;
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import eu.dnetlib.dhp.broker.model.Event;
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import eu.dnetlib.dhp.broker.oa.util.ClusterUtils;
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import scala.Tuple2;
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public class PartitionEventsByDsIdJob {
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private static final Logger log = LoggerFactory.getLogger(PartitionEventsByDsIdJob.class);
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private static final String OPENDOAR_NSPREFIX = "opendoar____::";
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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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PartitionEventsByDsIdJob.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 SparkConf conf = new SparkConf();
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final String eventsPath = parser.get("workingPath") + "/events";
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log.info("eventsPath: {}", eventsPath);
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final String partitionPath = parser.get("workingPath") + "/eventsByOpendoarId";
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log.info("partitionPath: {}", partitionPath);
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runWithSparkSession(conf, isSparkSessionManaged, spark -> {
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ClusterUtils
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.readPath(spark, eventsPath, Event.class)
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.filter(e -> StringUtils.isNotBlank(e.getMap().getTargetDatasourceId()))
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.filter(e -> e.getMap().getTargetDatasourceId().contains(OPENDOAR_NSPREFIX))
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.map(
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e -> new Tuple2<>(
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StringUtils.substringAfter(e.getMap().getTargetDatasourceId(), OPENDOAR_NSPREFIX),
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messageFromNotification(e)),
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Encoders.tuple(Encoders.STRING(), Encoders.bean(ShortEventMessage.class)))
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.write()
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.partitionBy("_1")
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.mode(SaveMode.Overwrite)
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.json(partitionPath);
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});
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renameSubDirs(partitionPath);
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}
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private static void renameSubDirs(final String path) throws IOException {
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final String prefix = "_1=";
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final FileSystem fs = FileSystem.get(new Configuration());
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log.info("** Renaming subdirs of " + path);
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for (final FileStatus fileStatus : fs.listStatus(new Path(path))) {
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if (fileStatus.isDirectory()) {
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final Path oldPath = fileStatus.getPath();
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final String oldName = oldPath.getName();
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if (oldName.startsWith(prefix)) {
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final Path newPath = new Path(path + "/" + StringUtils.substringAfter(oldName, prefix));
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log.info(" * " + oldPath.getName() + " -> " + newPath.getName());
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fs.rename(oldPath, newPath);
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}
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}
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}
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}
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private static ShortEventMessage messageFromNotification(final Event e) {
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final Gson gson = new Gson();
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final OaBrokerEventPayload payload = gson.fromJson(e.getPayload(), OaBrokerEventPayload.class);
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final ShortEventMessage res = new ShortEventMessage();
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res.setOriginalId(payload.getResult().getOriginalId());
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res.setTitle(payload.getResult().getTitles().stream().filter(StringUtils::isNotBlank).findFirst().orElse(null));
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res.setTopic(e.getTopic());
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res.setTrust(payload.getTrust());
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res.generateMessageFromObject(payload.getHighlight());
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return res;
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}
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}
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