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package eu.dnetlib.resolver.parser;
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import com.google.common.collect.Lists;
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import com.ximpleware.AutoPilot;
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import com.ximpleware.VTDGen;
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import com.ximpleware.VTDNav;
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import eu.dnetlib.data.transform.VtdUtilityParser;
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import eu.dnetlib.data.transform.VtdUtilityParser.Node;
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import eu.dnetlib.dli.DLIUtils;
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import eu.dnetlib.dli.resolver.model.*;
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import eu.dnetlib.pid.resolver.model.ObjectRelation;
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import eu.dnetlib.pid.resolver.model.ObjectType;
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import eu.dnetlib.pid.resolver.model.PID;
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import eu.dnetlib.pid.resolver.model.SubjectType;
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import eu.dnetlib.pid.resolver.parser.AbstractResolverParser;
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import org.apache.commons.lang3.StringUtils;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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/**
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* Created by sandro on 9/13/16.
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*/
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public class DMFResolverParser extends AbstractResolverParser {
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private static final Log log = LogFactory.getLog(DMFResolverParser.class);
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@Override
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public DLIResolvedObject parseObject(final String record) {
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try {
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final DLIResolvedObject parsedObject = new DLIResolvedObject();
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final VTDGen vg = new VTDGen();
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vg.setDoc(record.getBytes());
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vg.parse(true);
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final VTDNav vn = vg.getNav();
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final AutoPilot ap = new AutoPilot(vn);
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final String resolvedDate = VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='resolvedDate']");
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parsedObject.setResolvedDate(resolvedDate);
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final String datasourcePrefix = VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='datasourceprefix']");
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final String completionStatus = VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='completionStatus']");
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final String provisionMode = VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='provisionMode']");
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final String publisher = VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='resource']/*[local-name()='publisher']");
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final DLIObjectProvenance provenance = new DLIObjectProvenance();
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provenance.setDatasourceId(DLIUtils.getIdFromDataSourcePrefix(datasourcePrefix));
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provenance.setDatasource(DLIUtils.getNameFromDataSourcePrefix(datasourcePrefix));
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provenance.setCompletionStatus(completionStatus);
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if (!StringUtils.isEmpty(publisher))
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provenance.setPublisher(publisher);
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provenance.setProvisionMode(provisionMode);
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parsedObject.setDatasourceProvenance(Lists.newArrayList(provenance));
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final List<Node> identifierType =
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VtdUtilityParser.getTextValuesWithAttributes(ap, vn, "//*[local-name()='resource']/*[local-name()='identifier']", Lists.newArrayList("identifierType"));
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if (extractIdentifier(parsedObject, identifierType)) return null;
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List<String> descs = VtdUtilityParser.getTextValue(ap, vn,"//*[local-name()='description']" );
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if (descs!=null && descs.size()>0)
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parsedObject.setDescription(descs.get(0));
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final List<Node> relations =
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VtdUtilityParser.getTextValuesWithAttributes(ap, vn, "//*[local-name()='resource']//*[local-name()='relatedIdentifier']", Arrays.asList("relatedIdentifierType", "relationType", "inverseRelationType", "entityType"));
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if (relations != null && relations.size() > 0) {
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final List<ObjectRelation> relationsResult = new ArrayList<>();
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relations.forEach(relationMap -> {
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final String relationType = relationMap.getAttributes().get("relationType");
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final String inverseRelationType = relationMap.getAttributes().get("inverseRelationType");
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final String relatedIdentifierType = relationMap.getAttributes().get("relatedIdentifierType");
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final String relatedEntityType = relationMap.getAttributes().get("entityType");
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final String relatedPid = relationMap.getTextValue();
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final DLIObjectRelation currentRelation = new DLIObjectRelation();
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currentRelation.setTargetType(ObjectType.valueOf(relatedEntityType));
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currentRelation.setTargetPID(new PID(relatedPid, relatedIdentifierType));
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currentRelation.setRelationSemantics(relationType);
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currentRelation.setInverseRelation(inverseRelationType);
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currentRelation.setCompletionStatus(CompletionStatus.incomplete.toString());
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if (!StringUtils.isBlank(currentRelation.getTargetPID().getId()))
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relationsResult.add(currentRelation);
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});
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parsedObject.setRelations(relationsResult);
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}
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final List<Node> subjects = VtdUtilityParser.getTextValuesWithAttributes(ap, vn, "//*[local-name()='resource']//*[local-name()='subject']", Arrays.asList("subjectScheme"));
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extractSubject(parsedObject, subjects);
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parsedObject.setCompletionStatus(completionStatus);
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final List<String> creators = VtdUtilityParser.getTextValue(ap, vn, "//*[local-name()='resource']//*[local-name()='creator']/*[local-name()='creatorName']");
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if (creators != null && creators.size() > 0) {
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parsedObject.setAuthors(creators);
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}
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final List<String> titles = VtdUtilityParser.getTextValue(ap, vn, "//*[local-name()='resource']//*[local-name()='title']");
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if (titles != null && titles.size() > 0) {
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parsedObject.setTitles(titles);
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}
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List<Node> resourceTypeGeneral = VtdUtilityParser.getTextValuesWithAttributes(ap, vn, "//*[local-name()='resource']/*[local-name()='resourceType']", Arrays.asList("resourceTypeGeneral"));
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if (resourceTypeGeneral != null && !resourceTypeGeneral.isEmpty()) {
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final String type = resourceTypeGeneral.get(0).getAttributes().get("resourceTypeGeneral");
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setType(parsedObject, type);
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}
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if (parsedObject.getType() == ObjectType.unknown) {
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final String type = VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='resource']/*[local-name()='resourceType']");
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setType(parsedObject, type);
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}
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final List<String> dates = VtdUtilityParser.getTextValue(ap, vn, "//*[local-name()='resource']/*[local-name()='dates']/*[local-name()='date']");
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if (dates != null && dates.size() > 0) {
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parsedObject.setDate(dates.get(0));
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}
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return parsedObject;
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} catch (Throwable e) {
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log.error("Error on parsing record " + record, e);
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return null;
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}
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}
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}
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