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

Example 71 with MemTreeBuilder

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

the class DeepCopyFunction method eval.

@Override
public Sequence eval(final Sequence[] args, final Sequence contextSequence) throws XPathException {
    if (args[0].isEmpty()) {
        return Sequence.EMPTY_SEQUENCE;
    }
    final Item a = args[0].itemAt(0);
    context.pushDocumentContext();
    try {
        final MemTreeBuilder builder = context.getDocumentBuilder();
        builder.startDocument();
        final DocumentBuilderReceiver receiver = new DocumentBuilderReceiver(builder);
        try {
            final Properties props = new Properties();
            a.toSAX(context.getBroker(), receiver, props);
        } catch (final SAXException e) {
            throw new XPathException(this, "Cannot Deep-copy Item");
        }
        builder.endDocument();
        return (NodeValue) receiver.getDocument().getDocumentElement();
    } finally {
        context.popDocumentContext();
    }
}

Example 72 with MemTreeBuilder

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

the class FnExport method eval.

@Override
public Sequence eval(Sequence[] args, Sequence contextSequence) throws XPathException {
    if (!context.getSubject().hasDbaRole()) {
        throw (new XPathException(this, "Permission denied, calling user '" + context.getSubject().getName() + "' must be a DBA to kill a running xquery"));
    }
    final String dirOrFile = args[0].getStringValue();
    boolean incremental = false;
    if (args[1].hasOne()) {
        incremental = args[1].effectiveBooleanValue();
    }
    boolean zip = false;
    if (args[2].hasOne()) {
        zip = args[2].effectiveBooleanValue();
    }
    try {
        MemTreeBuilder builder = null;
        if (NAME.equals(getName())) {
            context.pushDocumentContext();
            builder = context.getDocumentBuilder();
            builder.startDocument();
            builder.startElement(EXPORT_ELEMENT, null);
        }
        try (final Txn transaction = context.getBroker().continueOrBeginTransaction()) {
            final SystemExport export = new SystemExport(context.getBroker(), transaction, new Callback(builder), null, true);
            export.export(dirOrFile, incremental, zip, null);
            transaction.commit();
        } catch (final Exception e) {
            throw new XPathException(this, "export failed with exception: " + e.getMessage(), e);
        }
        if (builder == null) {
            return Sequence.EMPTY_SEQUENCE;
        } else {
            builder.endElement();
            builder.endDocument();
            return (NodeValue) builder.getDocument().getDocumentElement();
        }
    } finally {
        if (NAME.equals(getName())) {
            context.popDocumentContext();
        }
    }
}

Example 73 with MemTreeBuilder

use of org.exist.dom.memtree.MemTreeBuilder 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 74 with MemTreeBuilder

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

the class NamespaceConstructor method eval.

@Override
public Sequence eval(final Sequence contextSequence, final 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());
        }
    }
    final MemTreeBuilder builder = context.getDocumentBuilder();
    context.proceed(this, builder);
    final Sequence prefixSeq = qnameExpr.eval(contextSequence, contextItem);
    if (!(prefixSeq.isEmpty() || Type.subTypeOf(prefixSeq.getItemType(), Type.STRING) || prefixSeq.getItemType() == Type.UNTYPED_ATOMIC)) {
        throw new XPathException(this, ErrorCodes.XPTY0004, "Prefix needs to be xs:string or xs:untypedAtomic");
    }
    String prefix = XMLConstants.DEFAULT_NS_PREFIX;
    if (!prefixSeq.isEmpty()) {
        prefix = prefixSeq.getStringValue();
        if (!(prefix.length() == 0 || XMLNames.isNCName(prefix))) {
            throw new XPathException(this, ErrorCodes.XQDY0074, "Prefix cannot be cast to xs:NCName");
        }
    }
    final Sequence uriSeq = content.eval(contextSequence, contextItem);
    final String value = uriSeq.getStringValue();
    final String inscopeNsUri = context.getInScopeNamespace(prefix);
    if (inscopeNsUri != null && !inscopeNsUri.equals(value)) {
        throw new XPathException(this, ErrorCodes.XQDY0102, "Cannot override already defined ns");
    }
    if (prefix.equals(XMLConstants.XMLNS_ATTRIBUTE)) {
        throw new XPathException(this, ErrorCodes.XQDY0101, "Cannot bind xmlns prefix");
    } else if (prefix.equals(XMLConstants.XML_NS_PREFIX) && !value.equals(Namespaces.XML_NS)) {
        throw new XPathException(this, ErrorCodes.XQDY0101, "Cannot bind xml prefix to another namespace");
    } else if (value.equals(Namespaces.XML_NS) && !prefix.equals("xml")) {
        throw new XPathException(this, ErrorCodes.XQDY0101, "Cannot bind prefix to XML namespace");
    } else if (value.equals(Namespaces.XMLNS_NS)) {
        throw new XPathException(this, ErrorCodes.XQDY0101, "Cannot bind prefix to xmlns namespace");
    } else if (value.length() == 0) {
        throw new XPathException(this, ErrorCodes.XQDY0101, "Cannot bind prefix to empty or zero-length namespace");
    }
    // context.declareInScopeNamespace(prefix, value);
    final int nodeNr = builder.namespaceNode(prefix, value);
    final Sequence result = builder.getDocument().getNamespaceNode(nodeNr);
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", result);
    }
    return result;
}

Example 75 with MemTreeBuilder

use of org.exist.dom.memtree.MemTreeBuilder 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;
}