Examples with MarcRecord cz.mzk.recordmanager.server.marc.MarcRecord used on opensource projects

Example 46 with MarcRecord

use of cz.mzk.recordmanager.server.marc.MarcRecord in project RecordManager2 by moravianlibrary.

the class GenerateSkatKeysProcessor method process.

@Override
public Set<SkatKey> process(Long item) throws Exception {
    Set<SkatKey> parsedKeys = new HashSet<>();
    HarvestedRecord hr = harvestedRecordDao.get(item);
    if (hr.getRawRecord() == null) {
        return parsedKeys;
    }
    MarcRecord marc = null;
    InputStream is = new ByteArrayInputStream(hr.getRawRecord());
    try {
        marc = marcXmlParser.parseRecord(is);
    } catch (Exception e) {
        return parsedKeys;
    }
    for (DataField df : marc.getDataFields("996")) {
        if (df.getSubfield('e') == null) {
            continue;
        }
        if (df.getSubfield('w') == null) {
            continue;
        }
        String sigla = df.getSubfield('e').getData();
        String recordId = df.getSubfield('w').getData();
        if (recordId.length() > 100 || sigla.length() > 20) {
            // ignore garbage
            continue;
        }
        SkatKey key = new SkatKey(new SkatKeyCompositeId(hr.getId(), sigla, recordId));
        parsedKeys.add(key);
    }
    // ignore records having not enough information
    if (parsedKeys.size() < 2) {
        return Collections.emptySet();
    }
    // find already existing keys
    Set<SkatKey> existingKeys = new HashSet<>(skatKeyDao.getSkatKeysForRecord(item));
    Set<SkatKey> newKeys = new HashSet<>();
    for (SkatKey current : parsedKeys) {
        if (existingKeys.contains(current)) {
            continue;
        }
        newKeys.add(current);
    }
    return newKeys;
}