Examples with SKOSType at.ac.univie.mminf.luceneSKOS.analysis.SKOSTypeAttribute.SKOSType used on opensource projects

Example 1 with SKOSType

use of at.ac.univie.mminf.luceneSKOS.analysis.SKOSTypeAttribute.SKOSType in project lucene-skos by behas.

the class SKOSFilterFactory method inform.

@Override
public void inform(ResourceLoader loader) {
    try {
        if (skosFile.endsWith(".n3") || skosFile.endsWith(".rdf") || skosFile.endsWith(".ttl") || skosFile.endsWith(".zip")) {
            skosEngine = SKOSEngineFactory.getSKOSEngine(indexPath != null ? indexPath : "", ((SolrResourceLoader) loader).getConfigDir() + skosFile, languageString != null ? Arrays.asList(languageString.split(" ")) : null);
        } else {
            throw new IOException("Allowed file suffixes are: .n3 (N3), .rdf (RDF/XML), .ttl (TURTLE) and .zip (ZIP)");
        }
    } catch (IOException e) {
        throw new RuntimeException("Could not instantiate SKOS engine", e);
    }
    if (expansionTypeString.equalsIgnoreCase(ExpansionType.URI.toString())) {
        expansionType = ExpansionType.URI;
    } else if (expansionTypeString.equalsIgnoreCase(ExpansionType.LABEL.toString())) {
        expansionType = ExpansionType.LABEL;
    } else {
        throw new IllegalArgumentException("The property 'expansionType' must be either URI or LABEL");
    }
    if (bufferSizeString != null) {
        bufferSize = Integer.parseInt(bufferSizeString);
        if (bufferSize < 1) {
            throw new IllegalArgumentException("The property 'bufferSize' must be a positive (smallish) integer");
        }
    }
    if (typeString != null) {
        List<SKOSType> types = new ArrayList<>();
        for (String s : typeString.split(" ")) {
            SKOSType st = SKOSType.valueOf(s.toUpperCase(Locale.ROOT));
            if (st != null) {
                types.add(st);
            }
        }
        type = types;
    }
}

Example 2 with SKOSType

use of at.ac.univie.mminf.luceneSKOS.analysis.SKOSTypeAttribute.SKOSType in project lucene-skos by behas.

the class AbstractSKOSFilter method processTermOnStack.

/**
     * Replaces the current term (attributes) with term (attributes) from the stack
     *
     * @throws IOException if analyzer failed
     */
protected void processTermOnStack() throws IOException {
    ExpandedTerm expandedTerm = termStack.pop();
    String term = expandedTerm.getTerm();
    SKOSType termType = expandedTerm.getTermType();
    String sTerm;
    try {
        CharsRefBuilder builder = new CharsRefBuilder();
        sTerm = analyze(analyzer, term, builder).toString();
    } catch (IllegalArgumentException e) {
        // skip this term
        return;
    }
    // copies the values of all attribute implementations from this state into
    // the implementations of the target stream
    restoreState(current);
    // adds the expanded term to the term buffer
    termAtt.setEmpty().append(sTerm);
    // set position increment to zero to put multiple terms into the same position
    posIncrAtt.setPositionIncrement(0);
    // set offset of the original expression (usefull for highlighting)
    if (expandedTerm.getStart() >= 0 && expandedTerm.getEnd() >= 0)
        offsettAtt.setOffset(expandedTerm.getStart(), expandedTerm.getEnd());
    // sets the type of the expanded term (pref, alt, broader, narrower, etc.)
    skosAtt.setSkosType(termType);
    // converts the SKOS Attribute to a payload, which is propagated to the index
    byte[] bytes = PayloadHelper.encodeInt(skosAtt.getSkosType().ordinal());
    payloadAtt.setPayload(new BytesRef(bytes));
}