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/**
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*
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*/
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package eu.dnetlib.dli.resolver;
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import java.util.ArrayList;
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import java.util.List;
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import com.google.common.collect.Lists;
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import com.google.gson.JsonArray;
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import com.google.gson.JsonElement;
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import com.google.gson.JsonObject;
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import com.google.gson.JsonParser;
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import eu.dnetlib.dli.resolver.model.CompletionStatus;
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import eu.dnetlib.dli.resolver.model.DLIObjectProvenance;
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import eu.dnetlib.dli.resolver.model.DLIResolvedObject;
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import eu.dnetlib.pid.resolver.model.ObjectType;
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import org.apache.commons.lang3.ArrayUtils;
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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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/**
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* @author sandro
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*/
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public class CrossRefParserJSON {
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/**
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* The Constant CROSSREF_NS_PREFIX.
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*/
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private static final String CROSSREF_NS_PREFIX = "crossref____";
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private static final Log log = LogFactory.getLog(CrossRefParserJSON.class); // NOPMD by marko on 11/24/08 5:02 PM
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public DLIResolvedObject parseRecord(final String record) {
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log.debug("Start to parsing " + record);
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if (record == null) return null;
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JsonElement jElement = new JsonParser().parse(record);
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JsonElement source = jElement.getAsJsonObject().get("_source");
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if (source== null || !source.isJsonObject())
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return null;
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final JsonObject message = source.getAsJsonObject();
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DLIResolvedObject currentObject = new DLIResolvedObject();
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if (message.get("DOI") != null) {
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final String doi = message.get("DOI").getAsString();
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log.debug("found doi" + doi);
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currentObject.setPid(doi);
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currentObject.setPidType("doi");
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}
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if ((!message.get("created").isJsonNull()) && (message.getAsJsonObject("created").get("date-time") != null)) {
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currentObject.setDate(message.getAsJsonObject("created").get("date-time").getAsString());
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}
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if (message.get("title")!= null && !message.get("title").isJsonNull() && message.get("title").isJsonArray() ) {
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final List<String> titles = new ArrayList<>();
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message.get("title").getAsJsonArray().forEach(
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it ->titles.add(it.getAsString())
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);
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currentObject.setTitles(titles);
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}
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if (message.get("author") != null && !message.get("author").isJsonNull()) {
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JsonArray author = message.getAsJsonArray("author");
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List<String> authorList = Lists.newArrayList();
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for (JsonElement anAuthor : author) {
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JsonObject currentAuth = anAuthor.getAsJsonObject();
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String family = "";
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String given = "";
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if (currentAuth != null && currentAuth.get("family") != null && !currentAuth.get("family").isJsonNull()) {
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family = currentAuth.get("family").getAsString();
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}
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if (currentAuth != null && currentAuth.get("given") != null && !currentAuth.get("given").isJsonNull()) {
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given = currentAuth.get("given").getAsString();
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}
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authorList.add(String.format("%s %s", family, given));
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}
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currentObject.setAuthors(authorList);
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}
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final DLIObjectProvenance provenance = new DLIObjectProvenance();
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DLIPIDResolver.setDatasourceProvenance(provenance, CROSSREF_NS_PREFIX);
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if (message.get("publisher") != null && !message.get("publisher").isJsonNull()) {
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provenance.setPublisher(message.get("publisher").getAsString());
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}
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currentObject.fixContribution(provenance);
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currentObject.setDatasourceProvenance(Lists.newArrayList(provenance));
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currentObject.setCompletionStatus(CompletionStatus.complete.toString());
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if (!message.get("type").isJsonNull()) {
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final String type = message.get("type").getAsString();
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if ("component".equals(type) || "dataset".equals(type)) {
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currentObject.setType(ObjectType.dataset);
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} else
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currentObject.setType(ObjectType.publication);
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}
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return currentObject;
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}
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/**
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* @param fullCitations
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* @param result
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*/
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private void parseFullCitation(final String fullCitations, final DLIResolvedObject result) {
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if (StringUtils.isEmpty(fullCitations))
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return;
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String beforeTitles[] = fullCitations.split("'");
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if (ArrayUtils.isEmpty(beforeTitles))
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return;
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String[] data = beforeTitles[0].split(",");
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if (ArrayUtils.isEmpty(data)) return;
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if (data.length > 1) {
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String date = data[data.length - 2];
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result.setDate(date.trim());
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List<String> authors = Lists.newArrayList();
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for (int i = 0; i < data.length - 2; i++) {
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authors.add(data[i]);
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}
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result.setAuthors(authors);
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}
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}
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}
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