Examples with QName org.exist.dom.QName used on opensource projects

Example 91 with QName

use of org.exist.dom.QName in project exist by eXist-db.

the class ExampleFunctions method sayHello.

/**
 * Creates an XML document like <hello>name</hello>.
 *
 * @param name An optional name, if empty then "stranger" is used.
 *
 * @return An XML document
 */
private DocumentImpl sayHello(final Optional<StringValue> name) throws XPathException {
    try {
        final MemTreeBuilder builder = new MemTreeBuilder(context);
        builder.startDocument();
        builder.startElement(new QName("hello"), null);
        builder.characters(name.map(StringValue::toString).orElse("stranger"));
        builder.endElement();
        builder.endDocument();
        return builder.getDocument();
    } catch (final QName.IllegalQNameException e) {
        throw new XPathException(this, e.getMessage(), e);
    }
}

Example 92 with QName

use of org.exist.dom.QName in project exist by eXist-db.

the class Directory method eval.

@Override
public Sequence eval(final Sequence[] args, final Sequence contextSequence) throws XPathException {
    if (!context.getSubject().hasDbaRole()) {
        XPathException xPathException = new XPathException(this, "Permission denied, calling user '" + context.getSubject().getName() + "' must be a DBA to call this function.");
        logger.error("Invalid user", xPathException);
        throw xPathException;
    }
    final String inputPath = args[0].getStringValue();
    final Path directoryPath = FileModuleHelper.getFile(inputPath);
    if (logger.isDebugEnabled()) {
        logger.debug("Listing matching files in directory: {}", directoryPath.toAbsolutePath().toString());
    }
    if (!Files.isDirectory(directoryPath)) {
        throw new XPathException(this, "'" + inputPath + "' does not point to a valid directory.");
    }
    // Get list of files, null if baseDir does not point to a directory
    context.pushDocumentContext();
    try (final Stream<Path> scannedFiles = Files.list(directoryPath)) {
        final MemTreeBuilder builder = context.getDocumentBuilder();
        builder.startDocument();
        builder.startElement(new QName("list", null, null), null);
        scannedFiles.forEach(entry -> {
            if (logger.isDebugEnabled()) {
                logger.debug("Found: {}", entry.toAbsolutePath().toString());
            }
            String entryType = "unknown";
            if (Files.isRegularFile(entry)) {
                entryType = "file";
            } else if (Files.isDirectory(entry)) {
                entryType = "directory";
            }
            builder.startElement(new QName(entryType, NAMESPACE_URI, PREFIX), null);
            builder.addAttribute(new QName("name", null, null), FileUtils.fileName(entry));
            try {
                if (Files.isRegularFile(entry)) {
                    final Long sizeLong = Files.size(entry);
                    String sizeString = Long.toString(sizeLong);
                    String humanSize = getHumanSize(sizeLong, sizeString);
                    builder.addAttribute(new QName("size", null, null), sizeString);
                    builder.addAttribute(new QName("human-size", null, null), humanSize);
                }
                builder.addAttribute(new QName("modified", null, null), new DateTimeValue(new Date(Files.getLastModifiedTime(entry).toMillis())).getStringValue());
                builder.addAttribute(new QName("hidden", null, null), new BooleanValue(Files.isHidden(entry)).getStringValue());
                builder.addAttribute(new QName("canRead", null, null), new BooleanValue(Files.isReadable(entry)).getStringValue());
                builder.addAttribute(new QName("canWrite", null, null), new BooleanValue(Files.isWritable(entry)).getStringValue());
            } catch (final IOException | XPathException ioe) {
                LOG.warn(ioe);
            }
            builder.endElement();
        });
        builder.endElement();
        return (NodeValue) builder.getDocument().getDocumentElement();
    } catch (final IOException ioe) {
        throw new XPathException(this, ioe);
    } finally {
        context.popDocumentContext();
    }
}

Example 93 with QName

use of org.exist.dom.QName in project exist by eXist-db.

the class NativeStructuralIndexWorker method removeDocument.

protected void removeDocument(DocumentImpl docToRemove) {
    if (index.btree == null) {
        return;
    }
    final List<QName> qnames = getQNamesForDoc(docToRemove);
    for (final QName qname : qnames) {
        final byte[] fromKey = computeKey(qname.getNameType(), qname, docToRemove.getDocId());
        final byte[] toKey = computeKey(qname.getNameType(), qname, docToRemove.getDocId() + 1);
        final IndexQuery query = new IndexQuery(IndexQuery.RANGE, new Value(fromKey), new Value(toKey));
        try (final ManagedLock<ReentrantLock> btreeLock = index.lockManager.acquireBtreeWriteLock(index.btree.getLockName())) {
            index.btree.remove(query, null);
        } catch (final LockException e) {
            NativeStructuralIndex.LOG.warn("Failed to lock structural index: {}", e.getMessage(), e);
        } catch (final Exception e) {
            NativeStructuralIndex.LOG.warn("Exception caught while removing structural index for document {}: {}", docToRemove.getURI(), e.getMessage(), e);
        }
    }
    removeQNamesForDoc(docToRemove);
}

Example 94 with QName

use of org.exist.dom.QName in project exist by eXist-db.

the class NativeStructuralIndexWorker method removeSome.

protected void removeSome() {
    if (pending.size() == 0) {
        return;
    }
    try {
        for (final Map.Entry<QName, List<NodeProxy>> entry : pending.entrySet()) {
            final QName qname = entry.getKey();
            try (final ManagedLock<ReentrantLock> btreeLock = index.lockManager.acquireBtreeWriteLock(index.btree.getLockName())) {
                final List<NodeProxy> nodes = entry.getValue();
                for (final NodeProxy proxy : nodes) {
                    final NodeId nodeId = proxy.getNodeId();
                    final byte[] key = computeKey(qname.getNameType(), qname, document.getDocId(), nodeId);
                    index.btree.removeValue(new Value(key));
                }
            } catch (final LockException e) {
                NativeStructuralIndex.LOG.warn("Failed to lock structural index: {}", e.getMessage(), e);
            } catch (final Exception e) {
                NativeStructuralIndex.LOG.warn("Exception caught while writing to structural index: {}", e.getMessage(), e);
            }
        }
    } finally {
        pending.clear();
    }
}

Example 95 with QName

use of org.exist.dom.QName in project exist by eXist-db.

the class NativeStructuralIndexWorker method scanIndex.

/**
 * Collect index statistics. Used by functions like util:index-keys.
 *
 * @param context the xquery context
 * @param docs The documents to which the index entries belong
 * @param contextSet ignored by this index
 * @param hints Some "hints" for retrieving the index entries. See such hints in
 * {@link org.exist.indexing.OrderedValuesIndex} and {@link org.exist.indexing.QNamedKeysIndex}.
 * @return the matching occurrences
 */
public Occurrences[] scanIndex(XQueryContext context, DocumentSet docs, NodeSet contextSet, Map hints) {
    final Map<String, Occurrences> occurrences = new TreeMap<>();
    for (final Iterator<DocumentImpl> i = docs.getDocumentIterator(); i.hasNext(); ) {
        final DocumentImpl doc = i.next();
        final List<QName> qnames = getQNamesForDoc(doc);
        for (final QName qname : qnames) {
            final String name;
            if (qname.getNameType() == ElementValue.ATTRIBUTE) {
                name = "@" + qname.getLocalPart();
            } else {
                name = qname.getLocalPart();
            }
            final byte[] fromKey = computeKey(qname.getNameType(), qname, doc.getDocId());
            final byte[] toKey = computeKey(qname.getNameType(), qname, doc.getDocId() + 1);
            final IndexQuery query = new IndexQuery(IndexQuery.RANGE, new Value(fromKey), new Value(toKey));
            try (final ManagedLock<ReentrantLock> btreeLock = index.lockManager.acquireBtreeReadLock(index.btree.getLockName())) {
                index.btree.query(query, (value, pointer) -> {
                    Occurrences oc = occurrences.get(name);
                    if (oc == null) {
                        oc = new Occurrences(name);
                        occurrences.put(name, oc);
                        oc.addDocument(doc);
                        oc.addOccurrences(1);
                    } else {
                        oc.addOccurrences(1);
                        oc.addDocument(doc);
                    }
                    return true;
                });
            } catch (final LockException e) {
                NativeStructuralIndex.LOG.warn("Failed to lock structural index: {}", e.getMessage(), e);
            } catch (final Exception e) {
                NativeStructuralIndex.LOG.warn("Exception caught while reading structural index for document {}: {}", doc.getURI(), e.getMessage(), e);
            }
        }
    }
    final Occurrences[] result = new Occurrences[occurrences.size()];
    int i = 0;
    for (Occurrences occ : occurrences.values()) {
        result[i++] = occ;
    }
    return result;
}