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package eu.dnetlib.wds.resolver;
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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.miscutils.collections.Pair;
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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.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 10/3/16.
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*/
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public class OpenAireParser extends AbstractResolverParser {
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private static final Log log = LogFactory.getLog(OpenAireParser.class);
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@Override
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public WDSResolvedObject parseObject(final String record) {
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try {
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final WDSResolvedObject currentObject = new WDSResolvedObject();
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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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ap.declareXPathNameSpace("oaf", "http://namespace.openaire.eu/oaf");
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final List<VtdUtilityParser.Node> subjectNodes =
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VtdUtilityParser.getTextValuesWithAttributes(ap, vn, "//*[local-name()='result']//*[local-name()='subject']", Arrays.asList("classname", "schemename"));
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//Setting subjects
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if (subjectNodes != null && subjectNodes.size() > 0) {
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final List<SubjectType> currentSubjects = new ArrayList<>();
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subjectNodes.forEach(it ->
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currentSubjects.add(new SubjectType(it.getAttributes().get("schemename"), it.getTextValue()))
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);
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currentObject.setSubjects(currentSubjects);
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}
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//Setting Titles
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final List<String> titles = VtdUtilityParser.getTextValue(ap, vn, "//*[local-name()='result']/*[local-name()='title']");
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if (titles != null && titles.size() > 0) {
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currentObject.setTitles(titles);
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}
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//Setting authors
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final List<String> authorNodes = VtdUtilityParser.getTextValue(ap, vn, "//*[local-name()='result']//*[local-name()='fullname']");
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if (authorNodes != null && authorNodes.size() > 0) {
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currentObject.setAuthors(authorNodes);
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}
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//Setting descriptions
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final List<String> descriptions = VtdUtilityParser.getTextValue(ap, vn, "//*[local-name()='result']//*[local-name()='description']");
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if (descriptions != null && descriptions.size() > 0) {
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descriptions.forEach(d -> currentObject.addDescription(new Pair<>("unknown", d)));
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}
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//resulttype classid
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final List<VtdUtilityParser.Node> resutlTypes = VtdUtilityParser.getTextValuesWithAttributes(ap, vn, "//*[local-name()='result']/*[local-name()='resulttype']", Arrays.asList("classid"));
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if (resutlTypes != null && resutlTypes.size() > 0) {
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final String type = resutlTypes.get(0).getAttributes().get("classid");
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setType(currentObject, type);
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}
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ap.selectXPath("//*[local-name()='rel'][./to/@type='project']");
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while (ap.evalXPath() != -1) {
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final List<String> projectTitles = VtdUtilityParser.getTextValue(ap, vn, "./title");
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final List<String> projectAcronym = VtdUtilityParser.getTextValue(ap, vn, "./acronym");
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final List<String> projectCodes = VtdUtilityParser.getTextValue(ap, vn, "./code");
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final List<VtdUtilityParser.Node> funderNames = VtdUtilityParser.getTextValuesWithAttributes(ap, vn, ".//funder", Arrays.asList("name"));
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final List<String> projectfundings = VtdUtilityParser.getTextValue(ap, vn, ".//*[starts-with(name(), 'funding_level_')]");
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final String funderName = funderNames != null ? funderNames.stream().findFirst().get().getAttributes().get("name") : "";
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String funding = projectfundings.size() > 0 ? projectfundings.get(projectfundings.size() - 1) : "";
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funding = funding.length() > 2 ? funding.substring(funding.indexOf("::") + 2) : "";
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currentObject.addProject(new Project().setAcronym((projectAcronym!=null && projectAcronym.size()>0) ?projectAcronym.get(0):"")
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.setFundingStream(funding)
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.setFunder(funderName)
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.setGrantID(projectCodes.get(0))
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.setName(projectTitles.get(0)));
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}
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return currentObject;
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} catch (Throwable e) {
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log.error("Error on parsing object ", e);
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return null;
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}
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}
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}
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