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package eu.dnetlib.data.mapreduce.hbase.propagation.country.institutionalrepositories;
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import eu.dnetlib.data.mapreduce.hbase.propagation.NotValidResultSequenceException;
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import eu.dnetlib.data.mapreduce.hbase.propagation.ResultIterator;
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import eu.dnetlib.data.mapreduce.hbase.propagation.Value;
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import eu.dnetlib.data.proto.KindProtos;
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import eu.dnetlib.data.proto.OafProtos;
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import eu.dnetlib.data.proto.ResultProtos;
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import eu.dnetlib.data.proto.TypeProtos;
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import org.apache.hadoop.io.Text;
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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.getCountry;
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public class ResultCountryIterator extends ResultIterator {
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private String country;
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private String trust;
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public ResultCountryIterator(final Iterable<Text> values, int key) throws NotValidResultSequenceException {
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super(values,key);
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}
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@Override
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public void checkSequence() throws NotValidResultSequenceException {
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if (!it.hasNext()) {
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throw new NotValidResultSequenceException("Empty information for key");
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}
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final Value first = Value.fromJson(it.next().toString());
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trust = first.getTrust();
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if (!(first.getValue().equals(ZERO) || first.getValue().equals(ONE))) {
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if (key == TypeProtos.Type.organization.getNumber()) {
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throw new NotValidResultSequenceException("First Element in reducer is not type of datasource, but the organization exists");
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} else {
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while (it.hasNext()) {
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String resultId = Value.fromJson(it.next().toString()).getValue();
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if (!resultId.startsWith("50|")) {
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throw new NotValidResultSequenceException("ERROR ORDERING CHECK");
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}
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}
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throw new NotValidResultSequenceException("WARNING: unexpected first element");
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}
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}
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//ensure we are dealing with an institutional repository
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if (first.getValue().equals(ONE)) {
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//context.getCounter(COUNTER_PROPAGATION, "institutional datasource").increment(1);
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if (!it.hasNext()) {
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throw new NotValidResultSequenceException("No information apart of type of datasource");
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}
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country = Value.fromJson(it.next().toString()).getValue(); // need to update the information for the country to each element in the iterator
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if (country.trim().length() != 2) {
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try {
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Integer.parseInt(country.trim());
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} catch (Exception e) {
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}
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throw new NotValidResultSequenceException("Second element in reducer is not country");
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}
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boolean iterate = true;
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while(it.hasNext() && iterate){
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resultId = Value.fromJson(it.next().toString()).getValue();
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if (!resultId.startsWith(("50|"))) {
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if (!resultId.equalsIgnoreCase(country)) {
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propagate = false;
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iterate = false;
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}
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}else{
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propagate = true;
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iterate = false;
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}
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}
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}else
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throw new NotValidResultSequenceException("Not allowed dsType institutional datasource");
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}
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@Override
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public OafProtos.Oaf next() {
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final ResultProtos.Result.Metadata.Builder metadata = ResultProtos.Result.Metadata.newBuilder().addCountry(
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getCountry(country,trust,DNET_COUNTRY_SCHEMA,CLASS_COUNTRY_ID,SCHEMA_ID,SCHEMA_NAME,DATA_INFO_TYPE,"Propagation of country information from datasources belonging to institutional repositories"));
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final ResultProtos.Result.Builder result = ResultProtos.Result.newBuilder().setMetadata(metadata);
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final OafProtos.OafEntity.Builder entity = OafProtos.OafEntity.newBuilder()
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.setType(TypeProtos.Type.result)
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.setId(resultId)
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.setResult(result);
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if(it.hasNext())
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resultId=Value.fromJson(it.next().toString()).getValue();
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else
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resultId = TERMINATOR;
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return OafProtos.Oaf.newBuilder()
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.setKind(KindProtos.Kind.entity)
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.setEntity(entity)
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.build();
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}
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}
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