forked from D-Net/dnet-hadoop
44 lines
1.3 KiB
Java
44 lines
1.3 KiB
Java
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package eu.dnetlib.dhp.broker.oa.matchers.simple;
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import java.util.List;
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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.lang3.tuple.Pair;
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import eu.dnetlib.dhp.broker.model.Topic;
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import eu.dnetlib.dhp.broker.oa.matchers.UpdateMatcher;
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import eu.dnetlib.dhp.broker.oa.util.ConversionUtils;
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import eu.dnetlib.dhp.broker.oa.util.aggregators.withRels.ResultWithRelations;
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public class EnrichMoreSubject extends UpdateMatcher<Pair<String, String>> {
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public EnrichMoreSubject() {
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super(true,
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pair -> Topic.fromPath("ENRICH/MORE/SUBJECT/" + pair.getLeft()),
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(p, pair) -> p.getSubjects().add(pair.getRight()),
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pair -> pair.getLeft() + "::" + pair.getRight());
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}
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@Override
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protected List<Pair<String, String>> findDifferences(final ResultWithRelations source,
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final ResultWithRelations target) {
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final Set<String> existingSubjects = target
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.getResult()
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.getSubject()
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.stream()
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.map(pid -> pid.getQualifier().getClassid() + "::" + pid.getValue())
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.collect(Collectors.toSet());
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return source
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.getResult()
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.getPid()
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.stream()
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.filter(pid -> !existingSubjects.contains(pid.getQualifier().getClassid() + "::" + pid.getValue()))
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.map(ConversionUtils::oafSubjectToPair)
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.collect(Collectors.toList());
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}
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}
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