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

Example 76 with MemTreeBuilder

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

the class DynamicCommentConstructor 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();
    }
    Sequence result;
    try {
        final Sequence contentSeq = content.eval(contextSequence, contextItem);
        if (contentSeq.isEmpty()) {
            result = Sequence.EMPTY_SEQUENCE;
        } else {
            final MemTreeBuilder builder = context.getDocumentBuilder();
            context.proceed(this, builder);
            final StringBuilder buf = new StringBuilder();
            for (final SequenceIterator i = Atomize.atomize(contentSeq).iterate(); i.hasNext(); ) {
                context.proceed(this, builder);
                final Item next = i.nextItem();
                if (buf.length() > 0) {
                    buf.append(' ');
                }
                buf.append(next.toString());
            }
            if (buf.indexOf("--") != Constants.STRING_NOT_FOUND || buf.toString().endsWith("-")) {
                throw new XPathException(this, ErrorCodes.XQDY0072, "'" + buf.toString() + "' is not a valid comment");
            }
            final int nodeNr = builder.comment(buf.toString());
            result = builder.getDocument().getNode(nodeNr);
        }
    } finally {
        if (newDocumentContext) {
            context.popDocumentContext();
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", result);
    }
    return result;
}

Example 77 with MemTreeBuilder

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

the class DynamicTextConstructor 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();
    }
    Sequence result;
    try {
        final Sequence contentSeq = content.eval(contextSequence, contextItem);
        if (contentSeq.isEmpty()) {
            result = Sequence.EMPTY_SEQUENCE;
        } else {
            final MemTreeBuilder builder = context.getDocumentBuilder();
            context.proceed(this, builder);
            final StringBuilder buf = new StringBuilder();
            for (final SequenceIterator i = Atomize.atomize(contentSeq).iterate(); i.hasNext(); ) {
                context.proceed(this, builder);
                final Item next = i.nextItem();
                if (buf.length() > 0) {
                    buf.append(' ');
                }
                buf.append(next.toString());
            }
            // such a text node will be deleted or merged with another text node.
            if (!newDocumentContext && buf.length() == 0) {
                result = Sequence.EMPTY_SEQUENCE;
            } else {
                final int nodeNr = builder.characters(buf);
                result = builder.getDocument().getNode(nodeNr);
            }
        }
    } finally {
        if (newDocumentContext) {
            context.popDocumentContext();
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", result);
    }
    return result;
}

Example 78 with MemTreeBuilder

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

the class ModuleUtils method inputSourceToXML.

/**
 * Takes a InputSource of XML and Creates an XML Node from it using SAX in the
 * context of the query
 *
 * @param context
 *            The Context of the calling XQuery
 * @param src
 *            The InputSource of XML
 *
 * @throws SAXException in case of a SAX error
 * @throws IOException in case of error reading input source
 * @return The NodeValue of XML
 */
private static NodeValue inputSourceToXML(XQueryContext context, SAXSource src) throws SAXException, IOException {
    if (src.getXMLReader() == null) {
        throw new SAXException("No XML Reader specified.");
    }
    final XMLReader reader = src.getXMLReader();
    context.pushDocumentContext();
    try {
        // try and construct xml document from input stream, we use eXist's
        // in-memory DOM implementation
        // TODO : we should be able to cope with context.getBaseURI()
        final MemTreeBuilder builder = context.getDocumentBuilder();
        final DocumentBuilderReceiver receiver = new DocumentBuilderReceiver(builder, true);
        reader.setContentHandler(receiver);
        reader.parse(src.getInputSource());
        final Document doc = receiver.getDocument();
        return ((NodeValue) doc);
    } finally {
        context.popDocumentContext();
    }
}

Example 79 with MemTreeBuilder

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

the class ModuleUtils method inputSourceToXML.

/**
 * Takes a InputSource of XML and Creates an XML Node from it using SAX in the
 * context of the query
 *
 * @param context
 *            The Context of the calling XQuery
 * @param inputSource
 *            The InputSource of XML
 *
 * @return The NodeValue of XML
 * @throws SAXException in case of a SAX error
 * @throws IOException in case of error reading input source
 */
public static NodeValue inputSourceToXML(XQueryContext context, InputSource inputSource) throws SAXException, IOException {
    context.pushDocumentContext();
    XMLReader reader = null;
    try {
        // try and construct xml document from input stream, we use eXist's
        // in-memory DOM implementation
        reader = context.getBroker().getBrokerPool().getParserPool().borrowXMLReader();
        LOG.debug("Parsing XML response ...");
        // TODO : we should be able to cope with context.getBaseURI()
        final MemTreeBuilder builder = context.getDocumentBuilder();
        final DocumentBuilderReceiver receiver = new DocumentBuilderReceiver(builder, true);
        reader.setContentHandler(receiver);
        reader.setProperty("http://xml.org/sax/properties/lexical-handler", receiver);
        reader.parse(inputSource);
        final Document doc = receiver.getDocument();
        // return (NodeValue)doc.getDocumentElement();
        return ((NodeValue) doc);
    } finally {
        context.popDocumentContext();
        if (reader != null) {
            context.getBroker().getBrokerPool().getParserPool().returnXMLReader(reader);
        }
    }
}

Example 80 with MemTreeBuilder

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

the class RestXqServiceImpl method parseAsXml.

private DocumentImpl parseAsXml(final InputStream is) {
    DocumentImpl result = null;
    XMLReader reader = null;
    try {
        // try and construct xml document from input stream, we use eXist's in-memory DOM implementation
        // we have to use CloseShieldInputStream otherwise the parser closes the stream and we cant later reread
        final InputSource src = new InputSource(new CloseShieldInputStream(is));
        reader = getBrokerPool().getParserPool().borrowXMLReader();
        final MemTreeBuilder builder = new MemTreeBuilder();
        builder.startDocument();
        final DocumentBuilderReceiver receiver = new DocumentBuilderReceiver(builder, true);
        reader.setContentHandler(receiver);
        reader.setProperty("http://xml.org/sax/properties/lexical-handler", receiver);
        reader.parse(src);
        builder.endDocument();
        final Document doc = receiver.getDocument();
        result = (DocumentImpl) doc;
    } catch (final SAXException | IOException saxe) {
    // do nothing, we will default to trying to return a string below
    } finally {
        if (reader != null) {
            getBrokerPool().getParserPool().returnXMLReader(reader);
        }
    }
    return result;
}