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package gr.uoa.di.web.utils;
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import eu.dnetlib.domain.data.Document;
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import eu.dnetlib.domain.enabling.Vocabulary;
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import eu.dnetlib.domain.functionality.DocumentField;
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import eu.dnetlib.domain.functionality.SwitchDocumentField;
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import gr.uoa.di.web.utils.bibtex.BibTeX;
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import java.util.List;
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import java.util.Locale;
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import org.apache.log4j.Logger;
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public class BibTeXGenerator {
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private static Logger logger = Logger.getLogger(BibTeXGenerator.class);
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public static BibTeX generateBibTeX(List<DocumentField> fields, Document document, Vocabulary bibTeXVocabulary) {
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BibTeX bibTeX = new BibTeX();
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//Create entry
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List<String> entryValues = document.getMap().get("CobjCategory");
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if (entryValues != null && !entryValues.isEmpty()) {
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String entry = bibTeXVocabulary.getEnglishName(entryValues.get(0));
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if (entry == null) { bibTeX.setEntry("article"); }
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else { bibTeX.setEntry(entry); }
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} else {
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bibTeX.setEntry("article");
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}
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bibTeX.setKey(generateBibTeXKey(fields, document));
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for (DocumentField field: fields) {
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if (field instanceof SwitchDocumentField) {
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String conditionField = ((SwitchDocumentField) field).getConditionField();
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String conditionFieldValue = null;
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/* if there is no value in the document for the condition field, consider it 'default' */
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if ( document.getMap().get(conditionField) == null || document.getMap().get(conditionField).isEmpty() ) {
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conditionFieldValue = "default";
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} else { //else get the one from the document
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conditionFieldValue = document.getMap().get(conditionField).get(0);
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}
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/* in case where there is no field for the given conditionFieldValue
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* because this was not part of the configuration use "default". If
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* there is no field for "default" just continue */
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if (((SwitchDocumentField) field).getDocumentField(conditionFieldValue) != null ) {
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field = ((SwitchDocumentField) field).getDocumentField(conditionFieldValue);
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} else if (((SwitchDocumentField) field).getDocumentField("default") != null) {
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field = ((SwitchDocumentField) field).getDocumentField("default");
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} else {
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continue;
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}
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}
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String fieldDescription = LocaleDescriptionUtil.getFieldDescription(field.getDescriptionMap(), Locale.ENGLISH);
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String value = generate(field.getName(), document);
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if (!value.isEmpty() && !value.equals("\"\"")) {
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bibTeX.getFields().put(fieldDescription, value);
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}
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}
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return bibTeX;
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}
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public static String generate(String indexField, Document document) {
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List<String> values = document.getFieldValues(indexField);
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if (values == null) return "";
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StringBuffer buffer = new StringBuffer();
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buffer.append("\"");
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int i = 0;
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for (String value:values) {
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if ( i > 0 ) { buffer.append(" and "); }
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buffer.append(escapeCharacters(value));
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i++;
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}
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buffer.append("\"");
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return buffer.toString();
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}
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public static String escapeCharacters(String value) {
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return value.replace("\"", "\\\"").replace("{", "\\{").replace("}", "\\}").replace("$", "\\$");
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}
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public static String generateBibTeXKey(List<DocumentField> fields, Document document) {
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String index4author = null;
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//Get the index field for author BibTeX field
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for ( DocumentField field:fields ) {
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if(field.getDescriptionMap().get(new Locale("en", "GB")) != null) {
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if (field.getDescriptionMap().get(new Locale("en", "GB")).equals("author")) {
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index4author = field.getName();
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break;
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}
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}
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}
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StringBuffer buffer = new StringBuffer();
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if (index4author != null) {
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List<String> authornames = document.getFieldValues(index4author);
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if (authornames != null && !authornames.isEmpty()) {
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for (String fullname: authornames) {
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String parts[] = fullname.split(",");
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String part = parts[0].replace(" ", "");
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if (authornames.size() > 1){
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if(part.length() > 4){
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buffer.append(part.substring(0, 4));
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} else {
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buffer.append(part);
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}
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} else {
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buffer.append(part);
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}
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}
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}
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}
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//TODO: reconsider following the same procedure as for author to get the index field name
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if (document.getMap().get("publicationyear") != null && !document.getMap().get("publicationyear").isEmpty()) {
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String publicationYear = document.getMap().get("publicationyear").get(0);
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if (publicationYear.length() > 3) {
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buffer.append(publicationYear.substring(publicationYear.length()-2, publicationYear.length()));
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} else {
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buffer.append(publicationYear);
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}
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}
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return buffer.toString();
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}
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}
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