Examples with NodeImpl org.exist.dom.memtree.NodeImpl used on opensource projects

Example 46 with NodeImpl

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

the class GetIndexStatistics method eval.

public Sequence eval(Sequence[] args, Sequence contextSequence) throws XPathException {
    final IndexStatistics index = (IndexStatistics) context.getBroker().getBrokerPool().getIndexManager().getIndexById(IndexStatistics.ID);
    if (index == null) {
        // module may not be enabled
        return Sequence.EMPTY_SEQUENCE;
    }
    final SAXAdapter adapter = new SAXAdapter(context);
    try {
        adapter.startDocument();
        index.toSAX(adapter);
        adapter.endDocument();
    } catch (final SAXException e) {
        throw new XPathException(this, "Error caught while retrieving statistics: " + e.getMessage(), e);
    }
    final DocumentImpl doc = (DocumentImpl) adapter.getDocument();
    return (NodeImpl) doc.getFirstChild();
}

Example 47 with NodeImpl

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

the class PIConstructor method eval.

/* (non-Javadoc)
	 * @see org.exist.xquery.Expression#eval(org.exist.xquery.StaticContext, org.exist.dom.persistent.DocumentSet, org.exist.xquery.value.Sequence, org.exist.xquery.value.Item)
	 */
public Sequence eval(Sequence contextSequence, Item contextItem) throws XPathException {
    if (newDocumentContext) {
        context.pushDocumentContext();
    }
    try {
        final MemTreeBuilder builder = context.getDocumentBuilder();
        final int nodeNr = builder.processingInstruction(target, data);
        final NodeImpl node = builder.getDocument().getNode(nodeNr);
        return node;
    } finally {
        if (newDocumentContext) {
            context.popDocumentContext();
        }
    }
}

Example 48 with NodeImpl

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

the class DynamicAttributeConstructor method eval.

/* (non-Javadoc)
     * @see org.exist.xquery.Expression#eval(org.exist.xquery.value.Sequence, org.exist.xquery.value.Item)
     */
public Sequence eval(Sequence contextSequence, Item contextItem) throws XPathException {
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().start(this);
        context.getProfiler().message(this, Profiler.DEPENDENCIES, "DEPENDENCIES", Dependency.getDependenciesName(this.getDependencies()));
        if (contextSequence != null) {
            context.getProfiler().message(this, Profiler.START_SEQUENCES, "CONTEXT SEQUENCE", contextSequence);
        }
        if (contextItem != null) {
            context.getProfiler().message(this, Profiler.START_SEQUENCES, "CONTEXT ITEM", contextItem.toSequence());
        }
    }
    if (newDocumentContext) {
        context.pushDocumentContext();
    }
    NodeImpl node;
    try {
        final MemTreeBuilder builder = context.getDocumentBuilder();
        builder.setReplaceAttributeFlag(replaceAttribute);
        context.proceed(this, builder);
        final Sequence nameSeq = qnameExpr.eval(contextSequence, contextItem);
        if (!nameSeq.hasOne()) {
            throw new XPathException(this, "The name expression should evaluate to a single value");
        }
        final Item qnItem = nameSeq.itemAt(0);
        QName qn;
        if (qnItem.getType() == Type.QNAME) {
            qn = ((QNameValue) qnItem).getQName();
        } else
            try {
                qn = QName.parse(context, nameSeq.getStringValue(), null);
            } catch (final QName.IllegalQNameException e) {
                throw new XPathException(this, ErrorCodes.XPTY0004, "'" + nameSeq.getStringValue() + "' is not a valid attribute name");
            }
        // Not in the specs but... makes sense
        if (!XMLNames.isName(qn.getLocalPart())) {
            throw new XPathException(this, ErrorCodes.XPTY0004, "'" + qn.getLocalPart() + "' is not a valid attribute name");
        }
        if ("xmlns".equals(qn.getLocalPart()) && qn.getNamespaceURI().isEmpty()) {
            throw new XPathException(this, ErrorCodes.XQDY0044, "'" + qn.getLocalPart() + "' is not a valid attribute name");
        }
        String value;
        final Sequence valueSeq = valueExpr.eval(contextSequence, contextItem);
        if (valueSeq.isEmpty()) {
            value = "";
        } else {
            final StringBuilder buf = new StringBuilder();
            for (final SequenceIterator i = Atomize.atomize(valueSeq).iterate(); i.hasNext(); ) {
                final Item next = i.nextItem();
                buf.append(next.getStringValue());
                if (i.hasNext()) {
                    buf.append(' ');
                }
            }
            value = buf.toString();
        }
        value = DynamicAttributeConstructor.normalize(this, qn, value);
        node = null;
        try {
            final int nodeNr = builder.addAttribute(qn, value);
            node = builder.getDocument().getAttribute(nodeNr);
        } catch (final DOMException e) {
            throw new XPathException(this, ErrorCodes.XQDY0025, "element has more than one attribute '" + qn + "'");
        }
    } finally {
        if (newDocumentContext) {
            context.popDocumentContext();
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", node);
    }
    return node;
}

Example 49 with NodeImpl

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

the class ArrayListValueSequence method expand.

/**
 * Scan the sequence and check all in-memory documents.
 * They may contains references to nodes stored in the database.
 * Expand those references to get a pure in-memory DOM tree.
 */
private void expand() {
    final Set<DocumentImpl> docs = new HashSet<>();
    for (final Item value : values) {
        final NodeImpl node = (NodeImpl) value;
        final DocumentImpl ownerDoc = node.getNodeType() == Node.DOCUMENT_NODE ? (DocumentImpl) node : node.getOwnerDocument();
        if (ownerDoc.hasReferenceNodes()) {
            docs.add(ownerDoc);
        }
    }
    for (final DocumentImpl doc : docs) {
        doc.expand();
    }
}

Example 50 with NodeImpl

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

the class ArrayListValueSequence method getParents.

@Override
public Sequence getParents(final NodeTest test) throws XPathException {
    final ArrayListValueSequence nodes = new ArrayListValueSequence();
    for (final Item value : values) {
        final NodeImpl node = (NodeImpl) value;
        final NodeImpl parent = (NodeImpl) node.selectParentNode();
        if (parent != null && test.matches(parent)) {
            nodes.add(parent);
        }
    }
    return nodes;
}