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package eu.dnetlib.data.mapreduce.hbase.propagation.communitythroughorganization;
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import com.google.gson.Gson;
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import eu.dnetlib.data.bulktag.Organization;
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import eu.dnetlib.data.mapreduce.hbase.propagation.Value;
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import eu.dnetlib.data.mapreduce.util.OafRowKeyDecoder;
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import eu.dnetlib.data.proto.*;
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import org.apache.hadoop.hbase.client.Result;
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import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
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import org.apache.hadoop.hbase.mapreduce.TableMapper;
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import org.apache.hadoop.hbase.util.Bytes;
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import org.apache.hadoop.io.Text;
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import java.io.IOException;
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import java.util.HashSet;
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import java.util.Set;
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import static eu.dnetlib.data.mapreduce.hbase.propagation.PropagationConstants.*;
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import static eu.dnetlib.data.mapreduce.hbase.propagation.Utils.getEntity;
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import static eu.dnetlib.data.mapreduce.hbase.propagation.Utils.getRelationTarget;
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public class PropagationCommunityThroughOrganizationMapper extends TableMapper<ImmutableBytesWritable, Text> {
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private Text valueOut;
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private ImmutableBytesWritable keyOut;
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private OrganizationMap organizationMap;
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//seleziono il tipo della entry:
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//Result:
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//se non e' deleted by inference ed ha organizzazioni a cui e' associato,
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// //emetto id della relazione ed id del risultato per ogni organizzazione a cui e' associato
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//ORGANIZATION:
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//se non e' deleted by inference e non e' deduplicata emetto l'id della organizzazione
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//se non e' deleted by inference ed e' deduplicata, emetto id della organizzazione ed id del deduplicato e lista delle organizzazioni mergiate
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@Override
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protected void setup(final Context context) throws IOException, InterruptedException {
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super.setup(context);
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valueOut = new Text();
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keyOut = new ImmutableBytesWritable();
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organizationMap = new Gson().fromJson(context.getConfiguration().get("organization.community.map"), OrganizationMap.class);
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}
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@Override
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protected void map(final ImmutableBytesWritable keyIn, final Result value, final Context context) throws IOException, InterruptedException {
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final TypeProtos.Type type = OafRowKeyDecoder.decode(keyIn.copyBytes()).getType();
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final OafProtos.OafEntity entity = getEntity(value, type);//getEntity already verified that it is not delByInference
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if (entity != null) {
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switch (type) {
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case organization:
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valueOut.set(Value.newInstance(
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new Gson().toJson(
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getCommunityList(Bytes.toString(keyIn.get()),
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getRelationTarget(value, DEDUP_RELATION_ORGANIZATION + REL_DEDUP_REPRESENTATIVE_RESULT, context, COUNTER_PROPAGATION)), //search for organization it merges
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DedupedList.class),
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ORGANIZATION_COMMUNITY_TRUST,
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Type.fromorganization).toJson());
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context.write(keyIn, valueOut);
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context.getCounter(COUNTER_PROPAGATION, "emit for organization ");
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break;
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case result:
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Set<String> result_organization = getRelationTarget(value, REL_RESULT_ORGANIZATION, context, COUNTER_PROPAGATION);
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result_organization.stream().forEach(org -> {
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try {
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emit(org, Bytes.toString(keyIn.get()), context);
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} catch (IOException e) {
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e.printStackTrace();
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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});
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break;
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}
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}
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}
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private DedupedList getCommunityList(String organizationId, Set<String> relationTarget) {
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DedupedList communityList = new DedupedList();
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relationTarget.add(organizationId);
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relationTarget.stream().forEach(org -> communityList.addAll(organizationMap.get(org)));
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// communityList.addAll(organizationMap.get(organizationId));
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return communityList;
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}
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private void emit(String org, String resId, Context context) throws IOException, InterruptedException {
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keyOut.set(Bytes.toBytes(org));
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valueOut.set(Value.newInstance(resId, ORGANIZATION_COMMUNITY_TRUST, Type.fromresult).toJson());
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context.write(keyOut,valueOut);
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context.getCounter(COUNTER_PROPAGATION, "emit for result");
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}
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}
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