Examples with NodeProxy org.exist.dom.persistent.NodeProxy used on opensource projects

Example 76 with NodeProxy

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

the class SelfSelector method match.

public NodeProxy match(DocumentImpl doc, NodeId nodeId) {
    final NodeProxy p = new NodeProxy(doc, nodeId);
    final NodeProxy contextNode = context.get(doc, nodeId);
    if (contextNode != null) {
        if (Expression.NO_CONTEXT_ID != contextId) {
            p.deepCopyContext(contextNode, contextId);
        } else {
            p.addContextNode(contextId, p);
        }
        p.addMatches(contextNode);
        return p;
    } else {
        return null;
    }
}

Example 77 with NodeProxy

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

the class GeneralComparison method nodeSetCompare.

/**
 * Optimized implementation, which can be applied if the left operand returns a node set. In this case, the left expression is executed first. All
 * matching context nodes are then passed to the right expression.
 *
 * @param   nodes            DOCUMENT ME!
 * @param   contextSequence  DOCUMENT ME!
 *
 * @return  DOCUMENT ME!
 *
 * @throws  XPathException  DOCUMENT ME!
 */
protected Sequence nodeSetCompare(NodeSet nodes, Sequence contextSequence) throws XPathException {
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().message(this, Profiler.OPTIMIZATION_FLAGS, "OPTIMIZATION CHOICE", "nodeSetCompare");
    }
    if (LOG.isTraceEnabled()) {
        LOG.trace("No index: fall back to nodeSetCompare");
    }
    final long start = System.currentTimeMillis();
    final NodeSet result = new NewArrayNodeSet();
    final Collator collator = getCollator(contextSequence);
    if ((contextSequence != null) && !contextSequence.isEmpty() && !contextSequence.getDocumentSet().contains(nodes.getDocumentSet())) {
        for (final NodeProxy item : nodes) {
            ContextItem context = item.getContext();
            if (context == null) {
                throw (new XPathException(this, "Internal error: context node missing"));
            }
            final AtomicValue lv = item.atomize();
            do {
                final Sequence rs = getRight().eval(context.getNode().toSequence());
                for (final SequenceIterator i2 = Atomize.atomize(rs).iterate(); i2.hasNext(); ) {
                    final AtomicValue rv = i2.nextItem().atomize();
                    if (compareAtomic(collator, lv, rv)) {
                        result.add(item);
                    }
                }
            } while ((context = context.getNextDirect()) != null);
        }
    } else {
        for (final NodeProxy item : nodes) {
            final AtomicValue lv = item.atomize();
            final Sequence rs = getRight().eval(contextSequence);
            for (final SequenceIterator i2 = Atomize.atomize(rs).iterate(); i2.hasNext(); ) {
                final AtomicValue rv = i2.nextItem().atomize();
                if (compareAtomic(collator, lv, rv)) {
                    result.add(item);
                }
            }
        }
    }
    if (context.getProfiler().traceFunctions()) {
        context.getProfiler().traceIndexUsage(context, PerformanceStats.RANGE_IDX_TYPE, this, PerformanceStats.NO_INDEX, System.currentTimeMillis() - start);
    }
    return (result);
}

Example 78 with NodeProxy

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

the class Shared method getStreamSource.

public static StreamSource getStreamSource(Item item, XQueryContext context) throws XPathException, IOException {
    final StreamSource streamSource = new StreamSource();
    if (item.getType() == Type.JAVA_OBJECT) {
        LOG.debug("Streaming Java object");
        final Object obj = ((JavaObjectValue) item).getObject();
        if (!(obj instanceof File)) {
            throw new XPathException("Passed java object should be a File");
        }
        final File inputFile = (File) obj;
        final InputStream is = new FileInputStream(inputFile);
        streamSource.setInputStream(is);
        streamSource.setSystemId(inputFile.toURI().toURL().toString());
    } else if (item.getType() == Type.ANY_URI) {
        LOG.debug("Streaming xs:anyURI");
        // anyURI provided
        String url = item.getStringValue();
        // Fix URL
        if (url.startsWith("/")) {
            url = "xmldb:exist://" + url;
        }
        final InputStream is = new URL(url).openStream();
        streamSource.setInputStream(is);
        streamSource.setSystemId(url);
    } else if (item.getType() == Type.ELEMENT || item.getType() == Type.DOCUMENT) {
        LOG.debug("Streaming element or document node");
        if (item instanceof NodeProxy) {
            final NodeProxy np = (NodeProxy) item;
            final String url = "xmldb:exist://" + np.getOwnerDocument().getBaseURI();
            LOG.debug("Document detected, adding URL {}", url);
            streamSource.setSystemId(url);
        }
        // Node provided
        final DBBroker broker = context.getBroker();
        final ConsumerE<ConsumerE<Serializer, IOException>, IOException> withSerializerFn = fn -> {
            final Serializer serializer = broker.borrowSerializer();
            try {
                fn.accept(serializer);
            } finally {
                broker.returnSerializer(serializer);
            }
        };
        final NodeValue node = (NodeValue) item;
        final InputStream is = new NodeInputStream(context.getBroker().getBrokerPool(), withSerializerFn, node);
        streamSource.setInputStream(is);
    } else if (item.getType() == Type.BASE64_BINARY || item.getType() == Type.HEX_BINARY) {
        LOG.debug("Streaming base64 binary");
        final BinaryValue binary = (BinaryValue) item;
        final byte[] data = binary.toJavaObject(byte[].class);
        final InputStream is = new UnsynchronizedByteArrayInputStream(data);
        streamSource.setInputStream(is);
        if (item instanceof Base64BinaryDocument) {
            final Base64BinaryDocument b64doc = (Base64BinaryDocument) item;
            final String url = "xmldb:exist://" + b64doc.getUrl();
            LOG.debug("Base64BinaryDocument detected, adding URL {}", url);
            streamSource.setSystemId(url);
        }
    } else {
        LOG.error("Wrong item type {}", Type.getTypeName(item.getType()));
        throw new XPathException("wrong item type " + Type.getTypeName(item.getType()));
    }
    return streamSource;
}

Example 79 with NodeProxy

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

the class FindLastModified method eval.

@Override
public Sequence eval(Sequence[] args, Sequence contextSequence) throws XPathException {
    final NodeSet nodes = args[0].toNodeSet();
    if (nodes.isEmpty()) {
        return Sequence.EMPTY_SEQUENCE;
    }
    final NodeSet result = new NewArrayNodeSet();
    final DateTimeValue dtv = (DateTimeValue) args[1].itemAt(0);
    final long lastModified = dtv.getDate().getTime();
    for (final NodeProxy proxy : nodes) {
        final DocumentImpl doc = proxy.getOwnerDocument();
        final long modified = doc.getLastModified();
        boolean matches;
        if (this.isCalledAs("find-last-modified-since")) {
            matches = modified > lastModified;
        } else {
            matches = modified <= lastModified;
        }
        if (matches) {
            result.add(proxy);
        }
    }
    return result;
}