de.derivo.sparqldlapi.impl.LiteralTranslator Maven / Gradle / Ivy

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This library was originally developed by Mario Volke and Derivo Systems.
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package de.derivo.sparqldlapi.impl;

import de.derivo.sparqldlapi.QueryArgument;
import de.derivo.sparqldlapi.types.QueryArgumentType;
import org.semanticweb.owlapi.model.IRI;
import org.semanticweb.owlapi.model.OWLDataFactory;
import org.semanticweb.owlapi.model.OWLDatatype;
import org.semanticweb.owlapi.model.OWLLiteral;
import org.semanticweb.owlapi.vocab.OWL2Datatype;
import org.semanticweb.owlapi.vocab.XSDVocabulary;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Matthew Horridge
 * Stanford Center for Biomedical Informatics Research
 * 10/03/15
 */
public class LiteralTranslator {

    private final static Pattern LITERAL_PATTERN_IRI_QUOTED = Pattern.compile("\"([^@\"]+)(@([^\"]+))?\"(\\^\\^<([^>]+)>)?");
    private final static Pattern LITERAL_PATTERN = Pattern.compile("\"([^@\"]+)(@([^\"]+))?\"(\\^\\^(.+))?");

    private OWLDataFactory dataFactory;

    private final OWLDatatype STRING_DATATYPE;

    public LiteralTranslator(OWLDataFactory dataFactory) {
        this.dataFactory = dataFactory;
        STRING_DATATYPE = dataFactory.getOWLDatatype(XSDVocabulary.STRING.getIRI());
    }

    public OWLLiteral toOWLLiteral(QueryArgument argument) {
        return argument.getValueAsLiteral();
//        Matcher matcher = LITERAL_PATTERN.matcher(argument.getValue());
//        if(matcher.matches()) {
//            String literal = matcher.group(1);
//            String lang = matcher.group(3);
//            String datatypeIRI = matcher.group(5);
//            if (lang != null) {
//                return dataFactory.getOWLLiteral(literal, lang);
//            }
//            else if (datatypeIRI != null) {
//                OWLDatatype datatype;
//                if(datatypeIRI.equals("http://www.w3.org/2001/XMLSchema#string")) {
//                    datatype = STRING_DATATYPE;
//                }
//                else {
//                    datatype = dataFactory.getOWLDatatype(IRI.create(datatypeIRI));
//                }
//                return dataFactory.getOWLLiteral(literal, datatype);
//            }
//        }
//        return dataFactory.getOWLLiteral(argument.getValue(), dataFactory.getRDFPlainLiteral());
    }

    public static QueryArgument toQueryArgument(OWLLiteral literal) {
        return QueryArgument.newLiteral(literal);
//        return toQueryArgument(literal.getLiteral(), literal.getLang(), literal.getDatatype().getIRI().toString());
    }

//    public static QueryArgument toQueryArgument(String literal, String lang, String datatypeIRI) {
//        StringBuilder sb = new StringBuilder();
//        sb.append("\"");
//        sb.append(literal);
//        if(!lang.isEmpty()) {
//            sb.append("@");
//            sb.append(lang);
//        }
//        sb.append("\"^^");
//        sb.append(datatypeIRI);
//        return new QueryArgument(QueryArgumentType.LITERAL, sb.toString());
//    }
}