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package eu.dnetlib.data.mapreduce.hbase.broker;
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import static eu.dnetlib.data.mapreduce.hbase.broker.mapping.EventFactory.asEvent;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Queue;
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import java.util.function.Predicate;
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import java.util.stream.Collectors;
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import org.apache.commons.lang3.StringUtils;
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import com.google.common.collect.Lists;
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import eu.dnetlib.broker.objects.OpenAireEventPayload;
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import eu.dnetlib.data.mapreduce.hbase.broker.mapping.HighlightFactory;
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import eu.dnetlib.data.mapreduce.hbase.broker.mapping.OpenAireEventPayloadFactory;
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import eu.dnetlib.data.mapreduce.hbase.broker.model.EventWrapper;
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import eu.dnetlib.data.proto.FieldTypeProtos;
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import eu.dnetlib.data.proto.OafProtos.Oaf;
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import eu.dnetlib.miscutils.collections.Pair;
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import eu.dnetlib.pace.distance.algo.JaroWinkler;
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public class OrcidEventFactory {
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private static final long MAX_AUTHORS = 50;
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private static final Float t = 0.9f;
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public static final String ORCID_TYPE_MARKER = "ORCID";
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public static List<EventWrapper> process(final Oaf current, final Oaf other, final float trust) {
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return new OrcidEventFactory().processOrcid(current, other, trust);
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}
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public List<EventWrapper> processOrcid(final Oaf current, final Oaf other, final float trust) {
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final List<EventWrapper> events = Lists.newArrayList();
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final Queue<FieldTypeProtos.Author> currAuthors = getAuthors(current, noneIsORCID());
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final Queue<FieldTypeProtos.Author> otherAuthors = getAuthors(other, anyIsORCID());
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while (!currAuthors.isEmpty()) {
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final FieldTypeProtos.Author currentAuthor = currAuthors.remove();
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Pair<FieldTypeProtos.Author, Float> bestMatch = null;
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for (final FieldTypeProtos.Author otherAuthor : otherAuthors) {
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final Pair<FieldTypeProtos.Author, Float> pair = new Pair<>(otherAuthor, distance(currentAuthor, otherAuthor));
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if (bestMatch == null || pair.getValue() > bestMatch.getValue()) {
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bestMatch = pair;
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}
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}
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if (bestMatch != null && bestMatch.getValue() >= t) {
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final float authorTrust = trust * bestMatch.getValue(); // adjust it?
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events.add(doProcessOrcid(current, other, new Pair<>(currentAuthor, bestMatch.getKey()), Topic.ENRICH_MISSING_AUTHOR_ORCID, authorTrust));
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}
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}
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return events;
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}
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private LinkedList<FieldTypeProtos.Author> getAuthors(final Oaf oaf, final Predicate<FieldTypeProtos.Author> p) {
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return authors(oaf).stream()
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.filter(p)
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.limit(MAX_AUTHORS)
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.collect(Collectors.toCollection(LinkedList::new));
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}
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private Predicate<FieldTypeProtos.Author> anyIsORCID() {
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return author -> author.getPidList().stream().anyMatch(pid -> ORCID_TYPE_MARKER.equals(pid.getKey()));
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}
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private Predicate<FieldTypeProtos.Author> noneIsORCID() {
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return author -> author.getPidList().stream().noneMatch(pid -> ORCID_TYPE_MARKER.equals(pid.getKey()));
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}
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private EventWrapper doProcessOrcid(final Oaf current,
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final Oaf other,
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final Pair<FieldTypeProtos.Author, FieldTypeProtos.Author> pair,
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final Topic topic,
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final float trust) {
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final Oaf.Builder prototype = Oaf.newBuilder(current);
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for (final FieldTypeProtos.Author.Builder a : prototype.getEntityBuilder().getResultBuilder().getMetadataBuilder().getAuthorBuilderList()) {
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if (a.getFullname().equals(pair.getKey().getFullname())) {
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a.addAllPid(
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pair.getValue().getPidList().stream()
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.filter(p -> ORCID_TYPE_MARKER.equals(p.getKey()))
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.collect(Collectors.toList()));
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}
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}
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final Oaf oaf = prototype.build();
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final OpenAireEventPayload payload =
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HighlightFactory.highlightEnrichOrcidAuthor(OpenAireEventPayloadFactory.fromOAF(oaf.getEntity(), other.getEntity(), trust), pair.getValue());
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return EventWrapper.newInstance(
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asEvent(oaf.getEntity(), topic, payload, other.getEntity(), trust),
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payload.getHighlight().getCreators().stream().filter(s -> StringUtils.contains(s, ORCID_TYPE_MARKER)).collect(Collectors.joining(", ")),
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topic.getValue());
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}
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private List<FieldTypeProtos.Author> authors(final Oaf oaf) {
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final List<FieldTypeProtos.Author> authors = oaf.getEntity().getResult().getMetadata().getAuthorList();
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if (authors == null) { return Lists.newLinkedList(); }
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return authors;
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}
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private Float distance(final FieldTypeProtos.Author a, final FieldTypeProtos.Author b) {
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final JaroWinkler jaroWinkler = new JaroWinkler(1.0);
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if (a.hasSurname() && b.hasSurname()) {
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return (float) jaroWinkler.distance(getCanonicalName(a), getCanonicalName(b));
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} else {
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return (float) jaroWinkler.distance(a.getFullname(), b.getFullname());
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}
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}
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// returns the 1st letter of the author name + the author surname, all in lowercase
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// e.g. "pmanghi"
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private String getCanonicalName(final FieldTypeProtos.Author a) {
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return (StringUtils.substring(a.getName(), 0, 1) + a.getSurname()).toLowerCase();
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}
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}
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