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package eu.dnetlib.data.mapreduce.hbase.broker;
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import java.io.IOException;
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import java.util.List;
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michele.ar
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import java.util.stream.Collectors;
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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.StructuredProperty;
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import eu.dnetlib.data.proto.OafProtos.Oaf;
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import eu.dnetlib.data.proto.OafProtos.OafEntity;
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import eu.dnetlib.data.proto.ResultProtos.Result.Metadata;
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import org.apache.commons.lang.StringUtils;
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import org.apache.hadoop.mapreduce.Reducer.Context;
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import org.dom4j.DocumentException;
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import static eu.dnetlib.data.mapreduce.hbase.broker.mapping.EventFactory.asEvent;
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/**
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* Created by claudio on 16/11/2016.
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*/
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public class SubjectEventFactory {
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public static List<EventWrapper> process(final Context context, final Oaf current, final Oaf other, final float trust)
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throws IOException, InterruptedException, DocumentException {
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return new SubjectEventFactory().processSubjectPair(context, current, other, trust);
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}
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public static List<EventWrapper> process(final Context context, final Oaf current)
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throws IOException, InterruptedException, DocumentException {
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return new SubjectEventFactory().processSubjectSingle(context, current);
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}
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private List<EventWrapper> processSubjectSingle(final Context context, final Oaf current) throws InterruptedException, DocumentException, IOException {
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final Metadata mCurrent = current.getEntity().getResult().getMetadata();
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final List<EventWrapper> events = Lists.newArrayList();
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if (mCurrent.getSubjectList().isEmpty()) {
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for (final StructuredProperty subject : mCurrent.getSubjectList()) {
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if (subject.hasDataInfo() && subject.getDataInfo().getInferred()) {
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events.add(
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doProcessSubject(context, current, null, subject, getSubjectTopic(subject, true), Float.valueOf(subject.getDataInfo().getTrust())));
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}
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}
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}
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return events;
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}
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private List<EventWrapper> processSubjectPair(final Context context, final Oaf current, final Oaf other, final Float trust)
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throws IOException, InterruptedException {
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final Metadata mCurrent = current.getEntity().getResult().getMetadata();
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final Metadata mOther = other.getEntity().getResult().getMetadata();
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final List<EventWrapper> events = Lists.newArrayList();
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if (mCurrent.getSubjectList().isEmpty()) {
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for (final StructuredProperty subjectOther : mOther.getSubjectList()) {
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events.add(doProcessSubject(context, current, other, subjectOther, getSubjectTopic(subjectOther, true), trust));
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}
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}
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if (other != null) {
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for (final StructuredProperty subjectOther : mOther.getSubjectList()) {
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if (!hasSubjectValue(current, subjectOther.getQualifier().getClassid(), subjectOther.getValue())) {
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final EventWrapper e = doProcessSubject(context, current, other, subjectOther, getSubjectTopic(subjectOther, false), trust);
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if (e != null) {
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events.add(e);
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}
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}
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}
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}
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return events;
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}
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private EventWrapper doProcessSubject(final Context context,
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final Oaf current,
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final Oaf other,
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final StructuredProperty subjectOther,
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final Topic topic,
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final Float trust) throws IOException, InterruptedException {
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if (topic == null) {
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context.getCounter("events skipped", "SUBJECT not mapped").increment(1);
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return null;
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}
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// we got java.lang.NumberFormatException: empty String, because of empty trust values. Default to 1.0 in such cases
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final String t = subjectOther.getDataInfo().getTrust();
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final float adjustedTrust = trust * Float.valueOf(StringUtils.isBlank(t) ? "1.0" : t);
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final Oaf.Builder prototype = Oaf.newBuilder(current);
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prototype.getEntityBuilder().getResultBuilder().getMetadataBuilder().addSubject(subjectOther);
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final Oaf oaf = prototype.build();
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final OafEntity eventEntity = other != null ? other.getEntity() : current.getEntity();
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final OpenAireEventPayload payload =
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HighlightFactory.highlightEnrichSubject(OpenAireEventPayloadFactory.fromOAF(oaf.getEntity(), eventEntity, adjustedTrust),
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Lists.newArrayList(subjectOther));
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return EventWrapper.newInstance(
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asEvent(oaf.getEntity(), topic, payload, eventEntity, adjustedTrust),
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payload.getHighlight().getSubjects().stream().filter(StringUtils::isNotBlank).sorted().collect(Collectors.joining(", ")),
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topic.getValue());
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}
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private Topic getSubjectTopic(final StructuredProperty subject, final boolean missingOrMore) {
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switch (subject.getQualifier().getClassid()) {
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case "mesheuropmc":
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return missingOrMore ? Topic.ENRICH_MISSING_SUBJECT_MESHEUROPMC : Topic.ENRICH_MORE_SUBJECT_MESHEUROPMC;
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case "arxiv":
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return missingOrMore ? Topic.ENRICH_MISSING_SUBJECT_ARXIV : Topic.ENRICH_MORE_SUBJECT_ARXIV;
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case "jel":
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return missingOrMore ? Topic.ENRICH_MISSING_SUBJECT_JEL : Topic.ENRICH_MORE_SUBJECT_JEL;
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case "ddc":
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return missingOrMore ? Topic.ENRICH_MISSING_SUBJECT_DDC : Topic.ENRICH_MORE_SUBJECT_DDC;
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case "acm":
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return missingOrMore ? Topic.ENRICH_MISSING_SUBJECT_ACM : Topic.ENRICH_MORE_SUBJECT_ACM;
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case "rvk":
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return missingOrMore ? Topic.ENRICH_MISSING_SUBJECT_RVK : Topic.ENRICH_MORE_SUBJECT_RVK;
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default:
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return null;
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}
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}
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private boolean hasSubjectValue(final Oaf oaf, final String classId, final String value) {
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return oaf.getEntity().getResult().getMetadata().getSubjectList()
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.stream()
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.anyMatch(s -> s.getValue().equalsIgnoreCase(value) & s.getQualifier().getClassid().endsWith(classId));
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}
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}
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