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

Example 11 with NodeSet

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

the class XMLDBDefragment method eval.

/* (non-Javadoc)
     * @see org.exist.xquery.Expression#eval(org.exist.dom.persistent.DocumentSet, org.exist.xquery.value.Sequence, org.exist.xquery.value.Item)
     */
public Sequence eval(Sequence[] args, Sequence contextSequence) throws XPathException {
    // Get nodes
    final NodeSet nodes = args[0].toNodeSet();
    final DocumentSet docs = nodes.getDocumentSet();
    try {
        if (args.length > 1) {
            // Use supplied parameter
            final int splitCount = ((IntegerValue) args[1].itemAt(0)).getInt();
            Modification.checkFragmentation(context, docs, splitCount);
        } else {
            // Use conf.xml configured value or -1 if not existent
            Modification.checkFragmentation(context, docs);
        }
    } catch (final LockException | EXistException e) {
        logger.error("An error occurred while defragmenting documents: {}", e.getMessage());
        throw new XPathException(this, "An error occurred while defragmenting documents: " + e.getMessage(), e);
    }
    return Sequence.EMPTY_SEQUENCE;
}

Example 12 with NodeSet

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

the class FunRemove method eval.

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());
        }
    }
    Sequence result;
    Sequence seq = getArgument(0).eval(contextSequence, contextItem);
    if (seq.isEmpty()) {
        result = Sequence.EMPTY_SEQUENCE;
    } else {
        // TODO : explain this Double conversion -pb
        int pos = ((DoubleValue) getArgument(1).eval(contextSequence, contextItem).convertTo(Type.DOUBLE)).getInt();
        if (pos < 1 || pos > seq.getItemCount()) {
            result = seq;
        } else {
            pos--;
            if (seq instanceof NodeSet) {
                result = new ExtArrayNodeSet();
                result.addAll((NodeSet) seq);
                result = ((NodeSet) result).except((NodeSet) seq.itemAt(pos));
            } else {
                result = new ValueSequence();
                for (int i = 0; i < seq.getItemCount(); i++) {
                    if (i != pos) {
                        result.add(seq.itemAt(i));
                    }
                }
            }
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", result);
    }
    return result;
}

Example 13 with NodeSet

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

the class FunResolveQName method eval.

public Sequence eval(Sequence[] args, Sequence contextSequence) 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);
        }
    }
    final Sequence qnameSeq = args[0];
    if (qnameSeq.isEmpty()) {
        return EmptySequence.EMPTY_SEQUENCE;
    } else {
        context.pushInScopeNamespaces();
        final String qnameString = args[0].getStringValue();
        if (QName.isQName(qnameString) == VALID.val) {
            try {
                String prefix = QName.extractPrefix(qnameString);
                if (prefix == null) {
                    prefix = "";
                }
                String uri = null;
                final NodeValue node = (NodeValue) args[1].itemAt(0);
                if (node.getImplementationType() == NodeValue.PERSISTENT_NODE) {
                    NodeProxy proxy = (NodeProxy) node;
                    final NodeSet ancestors = proxy.getAncestors(contextId, true);
                    for (NodeProxy ancestor : ancestors) {
                        proxy = ancestor;
                        final ElementImpl e = (ElementImpl) proxy.getNode();
                        uri = findNamespaceURI(e, prefix);
                        if (uri != null) {
                            break;
                        }
                    }
                } else {
                    NodeImpl next = (NodeImpl) node;
                    do {
                        uri = findNamespaceURI((org.exist.dom.memtree.ElementImpl) next, prefix);
                        if (uri != null) {
                            break;
                        } else {
                            next = (NodeImpl) next.getParentNode();
                        }
                    } while (next != null && next.getNodeType() == Node.ELEMENT_NODE);
                }
                if (uri == null && prefix != null && !prefix.isEmpty()) {
                    throw new XPathException(this, ErrorCodes.FONS0004, "No namespace found for prefix. No binding for prefix '" + prefix + "' was found.", args[0]);
                }
                final String localPart = QName.extractLocalName(qnameString);
                final QName qn = new QName(localPart, uri, prefix);
                final QNameValue result = new QNameValue(context, qn);
                if (context.getProfiler().isEnabled()) {
                    context.getProfiler().end(this, "", result);
                }
                context.popInScopeNamespaces();
                return result;
            } catch (final QName.IllegalQNameException e) {
                throw new XPathException(this, ErrorCodes.FOCA0002, "Invalid lexical value. '" + qnameString + "' is not a QName.", args[0]);
            }
        } else {
            throw new XPathException(this, ErrorCodes.FOCA0002, "Invalid lexical value. '" + qnameString + "' is not a QName.", args[0]);
        }
    }
}

Example 14 with NodeSet

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

the class Modification method selectAndLock.

/**
 * Acquire a lock on all documents processed by this modification. We have
 * to avoid that node positions change during the operation.
 * feature trigger_update :
 * At the same time we leverage on the fact that it's called before
 * database modification to call the eventual triggers.
 *
 * @param transaction the database transaction.
 *
 * @return The selected document nodes.
 *
 * @throws LockException if a lock error occurs
 * @throws PermissionDeniedException if the caller has insufficient priviledges
 * @throws EXistException if the database raises an error
 * @throws XPathException if the XPath raises an error
 * @throws TriggerException if a trigger raises an error
 */
protected final StoredNode[] selectAndLock(Txn transaction) throws LockException, PermissionDeniedException, EXistException, XPathException, TriggerException {
    final java.util.concurrent.locks.Lock globalLock = broker.getBrokerPool().getGlobalUpdateLock();
    globalLock.lock();
    try {
        final NodeList nl = select(docs);
        final DocumentSet lockedDocuments = ((NodeSet) nl).getDocumentSet();
        // acquire a lock on all documents
        // we have to avoid that node positions change
        // during the modification
        lockedDocumentsLocks = lockedDocuments.lock(broker, true);
        final StoredNode[] ql = new StoredNode[nl.getLength()];
        for (int i = 0; i < ql.length; i++) {
            ql[i] = (StoredNode) nl.item(i);
            final DocumentImpl doc = ql[i].getOwnerDocument();
            // call the eventual triggers
            // TODO -jmv separate loop on docs and not on nodes
            // prepare Trigger
            prepareTrigger(transaction, doc);
        }
        return ql;
    } finally {
        globalLock.unlock();
    }
}

Example 15 with NodeSet

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

the class LuceneMatchListener method reset.

protected void reset(final DBBroker broker, final NodeProxy proxy) {
    this.broker = broker;
    this.match = proxy.getMatches();
    setNextInChain(null);
    final IndexSpec indexConf = proxy.getOwnerDocument().getCollection().getIndexConfiguration(broker);
    if (indexConf != null) {
        config = (LuceneConfig) indexConf.getCustomIndexSpec(LuceneIndex.ID);
    } else {
        config = LuceneConfig.DEFAULT_CONFIG;
    }
    getTerms();
    nodesWithMatch = new TreeMap<>();
    /* Check if an index is defined on an ancestor of the current node.
        * If yes, scan the ancestor to get the offset of the first character
        * in the current node. For example, if the indexed node is &lt;a>abc&lt;b>de&lt;/b></a>
        * and we query for //a[text:ngram-contains(., 'de')]/b, proxy will be a &lt;b> node, but
        * the offsets of the matches are relative to the start of &lt;a>.
        */
    NodeSet ancestors = null;
    Match nextMatch = this.match;
    while (nextMatch != null) {
        if (proxy.getNodeId().isDescendantOf(nextMatch.getNodeId())) {
            if (ancestors == null) {
                ancestors = new NewArrayNodeSet();
            }
            ancestors.add(new NodeProxy(proxy.getOwnerDocument(), nextMatch.getNodeId()));
        }
        nextMatch = nextMatch.getNextMatch();
    }
    if (ancestors != null && !ancestors.isEmpty()) {
        for (final NodeProxy p : ancestors) {
            scanMatches(p);
        }
    }
}