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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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import java.util.Set;
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import java.util.stream.Collectors;
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import com.google.common.base.Predicate;
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import com.google.common.collect.Iterables;
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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.EventMessage;
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import eu.dnetlib.data.proto.OafProtos.Oaf;
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import eu.dnetlib.data.proto.ResultProtos.Result.Instance;
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import org.apache.commons.lang.StringUtils;
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import org.apache.hadoop.io.Text;
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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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import static eu.dnetlib.data.mapreduce.util.OafHbaseUtils.getKey;
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/**
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* Created by claudio on 26/07/16.
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*/
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public class OAVersionEventFactory {
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protected Text tKey = new Text("");
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public static void process(final Context context, final Oaf current, final Oaf other, final float trust, final Set<String> untrustedOaDsList)
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throws IOException, InterruptedException, DocumentException {
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new OAVersionEventFactory().processOAVersion(context, current, other, trust, untrustedOaDsList);
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}
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private void processOAVersion(final Context context, final Oaf current, final Oaf other, final float trust, final Set<String> untrustedOaDsList)
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throws IOException, InterruptedException, DocumentException {
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final String otherDsId = StringUtils.substringAfter(getKey(other.getEntity().getCollectedfromList()), "|");
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// OPEN ACCESS VERSION
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if (!untrustedOaDsList.contains(otherDsId)) {
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if (hasAccess(other, "OPEN", false)) {
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// MORE
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doProcessOAVersion(context, current, other, Topic.ENRICH_MORE_OA_VERSION, trust);
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// MISSING
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if (!hasAccess(current, "OPEN", true)) {
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doProcessOAVersion(context, current, other, Topic.ENRICH_MISSING_OA_VERSION, trust);
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}
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}
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}
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}
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private void doProcessOAVersion(final Context context, final Oaf current, final Oaf other, final Topic topic, final float trust)
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throws IOException, InterruptedException, DocumentException {
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final Oaf.Builder prototype = Oaf.newBuilder(current);
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final List<Instance> instances =
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other.getEntity().getResult().getInstanceList().stream()
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.filter(i ->"OPEN".equalsIgnoreCase(i.getAccessright().getClassid()))
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.collect(Collectors.toList());
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prototype.getEntityBuilder().getResultBuilder().addAllInstance(instances);
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final Oaf oaf = prototype.build();
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final OpenAireEventPayload payload =
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HighlightFactory.highlightEnrichOa(OpenAireEventPayloadFactory.fromOAF(oaf.getEntity(), other.getEntity(), trust), instances);
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final EventMessage event = asEvent(oaf.getEntity(), topic, payload, other.getEntity(), trust);
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context.write(tKey, new Text(event.toString()));
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context.getCounter("event", topic.getValue()).increment(1);
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}
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private boolean hasAccess(final Oaf oaf, final String access, final boolean strict) {
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final Predicate<Instance> p = i -> access.equalsIgnoreCase(i.getAccessright().getClassid());
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final List<Instance> i = oaf.getEntity().getResult().getInstanceList();
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return strict ? Iterables.all(i, p) : Iterables.any(i, p);
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}
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}
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