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package eu.dnetlib.data.mapreduce.hbase.broker;
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import java.io.IOException;
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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 com.google.common.collect.Lists;
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import eu.dnetlib.data.broker.model.openaire.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.FieldTypeProtos.StructuredProperty;
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import eu.dnetlib.data.proto.OafProtos.Oaf;
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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 static eu.dnetlib.data.mapreduce.hbase.broker.mapping.EventFactory.asEvent;
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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 PIDEventFactory {
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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) throws IOException, InterruptedException {
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new PIDEventFactory().processPID(context, current, other);
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}
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public void processPID(final Context context, final Oaf current, final Oaf other) throws IOException, InterruptedException {
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//PIDS
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if (current.getEntity().getPidList().isEmpty()) {
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for(StructuredProperty pidOther : other.getEntity().getPidList()) {
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doProcessPID(context, current, other, pidOther, Topic.MISSING_PID);
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}
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}
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for(StructuredProperty pidOther : other.getEntity().getPidList()) {
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if(!hasPidValue(current, pidOther.getValue())) {
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doProcessPID(context, current, other, pidOther, Topic.MORE_PID);
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}
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}
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}
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private void doProcessPID(final Context context, final Oaf current, final Oaf other, final StructuredProperty pidOther, final Topic topic)
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throws IOException, InterruptedException {
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final Oaf.Builder prototype = Oaf.newBuilder(current);
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prototype.getEntityBuilder().addPid(pidOther);
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final Oaf oaf = prototype.build();
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final EventMessage event = asEvent(oaf.getEntity(), topic, other.getEntity());
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final OpenAireEventPayload payload = OpenAireEventPayloadFactory.fromOAF(oaf.getEntity(), other.getEntity());
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event.setPayload(HighlightFactory.highlightEnrichPid(payload, Lists.newArrayList(pidOther)).toJSON());
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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 hasPidValue(final Oaf oaf, final String value) {
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return Iterables.any(oaf.getEntity().getPidList(), new Predicate<StructuredProperty>() {
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@Override
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public boolean apply(final StructuredProperty pid) {
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return pid.getValue().equalsIgnoreCase(value) ;
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}
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});
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}
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}
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