Examples with CatalogEntry org.opencastproject.mediapackage.XMLCatalogImpl.CatalogEntry used on opensource projects

Example 1 with CatalogEntry

use of org.opencastproject.mediapackage.XMLCatalogImpl.CatalogEntry in project opencast by opencast.

the class DublinCoreXmlFormat method writeDocument.

public static Document writeDocument(DublinCoreCatalog dc) throws ParserConfigurationException, TransformerException, IOException {
    // Create the DOM document
    final Document doc;
    {
        final DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
        docBuilderFactory.setNamespaceAware(true);
        doc = docBuilderFactory.newDocumentBuilder().newDocument();
    }
    if (dc.getRootTag() != null) {
        final Element rootElement = doc.createElementNS(dc.getRootTag().getNamespaceURI(), dc.toQName(dc.getRootTag()));
        doc.appendChild(rootElement);
        for (CatalogEntry element : dc.getEntriesSorted()) {
            rootElement.appendChild(element.toXml(doc));
        }
        return doc;
    } else {
        throw new RuntimeException("DublinCore catalog does not have a root tag.");
    }
}

Example 2 with CatalogEntry

use of org.opencastproject.mediapackage.XMLCatalogImpl.CatalogEntry in project opencast by opencast.

the class DublinCoreCatalogTest method testLoadNonOpencastDublinCore.

@Test
public void testLoadNonOpencastDublinCore() throws Exception {
    final DublinCoreCatalog dc = read("/dublincore-non-oc.xml");
    for (DublinCoreValue value : dc.getValuesFlat()) {
        logger.debug("DublinCorevalue " + value.getValue());
    }
    assertEquals(9, dc.getValuesFlat().size());
    assertEquals(2, dc.get(DublinCore.PROPERTY_TITLE).size());
    assertEquals(Opt.some(EName.mk("http://lib.org/metadata-enc", "PlainTitle")), dc.get(DublinCore.PROPERTY_TITLE).get(0).getEncodingScheme());
    for (CatalogEntry entry : dc.getEntriesSorted()) {
        logger.debug(entry.getEName().toString() + " " + entry.getValue());
    }
    assertTrue("Property foo:id should be in the list of known properties.", dc.getProperties().contains(PROPERTY_FOO_ID));
    assertEquals(fooId, dc.getFirstVal(PROPERTY_FOO_ID).getValue());
}

Example 3 with CatalogEntry

use of org.opencastproject.mediapackage.XMLCatalogImpl.CatalogEntry in project opencast by opencast.

the class XMLCatalogImplTest method testEqualityOfCatalogEntries.

/**
 * Two catalog entries shall be considered equal if
 * the have the same ename, the same value and the same <em>set</em> of attributes.
 */
@Test
public void testEqualityOfCatalogEntries() throws Exception {
    final Map<EName, String> a1 = map(tuple(EName.mk("http://lang.org", "lang"), "en"), tuple(EName.mk("http://value.org", "value"), "value"), tuple(EName.mk("http://type.org", "type"), "string"));
    final Map<EName, String> a2 = map(tuple(EName.mk("http://type.org", "type"), "string"), tuple(EName.mk("http://lang.org", "lang"), "en"), tuple(EName.mk("http://value.org", "value"), "value"));
    final CatalogEntry c1 = new TestImpl().mkCatalogEntry(EName.mk("http://extron.com", "extron"), "value", a1);
    final CatalogEntry c2 = new TestImpl().mkCatalogEntry(EName.mk("http://extron.com", "extron"), "value", a2);
    assertEquals(c1, c2);
    final CatalogEntry c3 = new TestImpl().mkCatalogEntry(EName.mk("http://extron.com", "extron2"), "value", a2);
    assertNotEquals(c1, c3);
}

Example 4 with CatalogEntry

use of org.opencastproject.mediapackage.XMLCatalogImpl.CatalogEntry in project opencast by opencast.

the class DublinCoreXmlFormat method merge.

/**
 * Merge values that are  new, changed, or emptied from the "from" catalog into the existing "into" catalog.
 *
 * @param fromCatalog contains targeted new values (new elements, changed element values, emptied element values).
 * @param intoCatalog is the existing catalog that merges in the targed changes.
 * @return the merged catalog
 */
public static DublinCoreCatalog merge(DublinCoreCatalog fromCatalog, DublinCoreCatalog intoCatalog) {
    // If one catalog is null, return the other.
    if (fromCatalog == null) {
        return intoCatalog;
    }
    if (intoCatalog == null) {
        return fromCatalog;
    }
    DublinCoreCatalog mergedCatalog = (DublinCoreCatalog) intoCatalog.clone();
    List<CatalogEntry> mergeEntries = fromCatalog.getEntriesSorted();
    for (CatalogEntry mergeEntry : mergeEntries) {
        // ignore root entry
        if ((mergeEntry.getEName()).equals(intoCatalog.getRootTag()))
            continue;
        // if language is provided, only overwrite existing of same language
        String lang = mergeEntry.getAttribute(XMLCatalogImpl.XML_LANG_ATTR);
        if (StringUtils.isNotEmpty(lang)) {
            // Passing a null value will remove the exiting value
            mergedCatalog.set(mergeEntry.getEName(), StringUtils.trimToNull(mergeEntry.getValue()), lang);
        } else {
            mergedCatalog.set(mergeEntry.getEName(), StringUtils.trimToNull(mergeEntry.getValue()));
        }
    }
    return mergedCatalog;
}

Example 5 with CatalogEntry

use of org.opencastproject.mediapackage.XMLCatalogImpl.CatalogEntry in project opencast by opencast.

the class DublinCoreUtil method calculateChecksum.

/**
 * Calculate an MD5 checksum for a DublinCore catalog.
 */
public static Checksum calculateChecksum(DublinCoreCatalog dc) {
    // Use 0 as a word separator. This is safe since none of the UTF-8 code points
    // except \u0000 contains a null byte when converting to a byte array.
    final byte[] sep = new byte[] { 0 };
    final MessageDigest md = // consider all DublinCore properties
    $(getPropertiesSorted(dc)).bind(new Fn<CatalogEntry, Stream<String>>() {

        @Override
        public Stream<String> apply(CatalogEntry entry) {
            // get attributes, sorted and serialized as [name, value, name, value, ...]
            final Stream<String> attributesSorted = $(entry.getAttributes().entrySet()).sort(new Comparator<Entry<EName, String>>() {

                @Override
                public int compare(Entry<EName, String> o1, Entry<EName, String> o2) {
                    return o1.getKey().compareTo(o2.getKey());
                }
            }).bind(new Fn<Entry<EName, String>, Stream<String>>() {

                @Override
                public Stream<String> apply(Entry<EName, String> attribute) {
                    return $(attribute.getKey().toString(), attribute.getValue());
                }
            });
            return $(entry.getEName().toString(), entry.getValue()).append(attributesSorted);
        }
    }).append(Opt.nul(dc.getRootTag()).map(toString)).foldl(mkMd5MessageDigest(), new Fn2<MessageDigest, String, MessageDigest>() {

        @Override
        public MessageDigest apply(MessageDigest digest, String s) {
            digest.update(s.getBytes(StandardCharsets.UTF_8));
            // add separator byte (see definition above)
            digest.update(sep);
            return digest;
        }
    });
    try {
        return Checksum.create("md5", Checksum.convertToHex(md.digest()));
    } catch (NoSuchAlgorithmException e) {
        return chuck(e);
    }
}