forked from D-Net/dnet-hadoop
138 lines
4.7 KiB
Java
138 lines
4.7 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.Arrays;
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import java.util.HashSet;
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import java.util.Optional;
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import java.util.Set;
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import java.util.stream.Collectors;
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import org.apache.commons.codec.digest.DigestUtils;
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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.api.java.function.FilterFunction;
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import org.apache.spark.api.java.function.MapFunction;
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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.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.model.ShortEventMessageWithGroupId;
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import eu.dnetlib.dhp.broker.oa.util.ClusterUtils;
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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/od_partitions_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("outputDir") + "/events";
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log.info("eventsPath: {}", eventsPath);
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final String partitionPath = parser.get("outputDir") + "/eventsByOpendoarId";
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log.info("partitionPath: {}", partitionPath);
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final String opendoarIds = parser.get("opendoarIds");
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log.info("opendoarIds: {}", opendoarIds);
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final Set<String> validOpendoarIds = new HashSet<>();
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if (!opendoarIds.trim().equals("-")) {
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validOpendoarIds
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.addAll(
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Arrays
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.stream(opendoarIds.split(","))
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.map(String::trim)
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.filter(StringUtils::isNotBlank)
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.map(s -> OPENDOAR_NSPREFIX + DigestUtils.md5Hex(s))
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.collect(Collectors.toSet()));
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}
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log.info("validOpendoarIds: {}", validOpendoarIds);
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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((FilterFunction<Event>) e -> StringUtils.isNotBlank(e.getMap().getTargetDatasourceId()))
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.filter((FilterFunction<Event>) e -> e.getMap().getTargetDatasourceId().startsWith(OPENDOAR_NSPREFIX))
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.filter((FilterFunction<Event>) e -> validOpendoarIds.contains(e.getMap().getTargetDatasourceId()))
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.map(
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(MapFunction<Event, ShortEventMessageWithGroupId>) e -> messageFromNotification(e),
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Encoders.bean(ShortEventMessageWithGroupId.class))
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.coalesce(1)
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.write()
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.partitionBy("group")
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.mode(SaveMode.Overwrite)
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.option("compression", "gzip")
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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 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.contains("=")) {
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final Path newPath = new Path(path + "/" + StringUtils.substringAfter(oldName, "="));
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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 ShortEventMessageWithGroupId 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 ShortEventMessageWithGroupId res = new ShortEventMessageWithGroupId();
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res.setEventId(e.getEventId());
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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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res.setGroup(StringUtils.substringAfter(e.getMap().getTargetDatasourceId(), OPENDOAR_NSPREFIX));
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return res;
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}
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}
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