Examples with NodeIteratorAdapter org.apache.jackrabbit.commons.iterator.NodeIteratorAdapter used on opensource projects

Example 6 with NodeIteratorAdapter

use of org.apache.jackrabbit.commons.iterator.NodeIteratorAdapter in project jackrabbit-oak by apache.

the class QueryResultImpl method getNodes.

@Override
public NodeIterator getNodes() throws RepositoryException {
    String[] columnSelectorNames = result.getColumnSelectorNames();
    if (columnSelectorNames.length != 1) {
        throw new RepositoryException("Query contains more than one selector: " + Arrays.toString(columnSelectorNames));
    }
    final String selectorName = columnSelectorNames[0];
    if (selectorName == null) {
        throw new RepositoryException("Query does not contain a selector: " + Arrays.toString(columnSelectorNames));
    }
    Iterator<NodeImpl<? extends NodeDelegate>> nodeIterator = new Iterator<NodeImpl<? extends NodeDelegate>>() {

        private final Iterator<? extends ResultRow> it = result.getRows().iterator();

        private NodeImpl<? extends NodeDelegate> current;

        {
            fetch();
        }

        private void fetch() {
            current = null;
            while (it.hasNext()) {
                ResultRow r = it.next();
                Tree tree = r.getTree(selectorName);
                if (tree != null && tree.exists()) {
                    try {
                        current = getNode(tree);
                        break;
                    } catch (RepositoryException e) {
                        LOG.warn("Unable to fetch result node for path " + tree.getPath(), e);
                    }
                }
            }
        }

        @Override
        public boolean hasNext() {
            return current != null;
        }

        @Override
        public NodeImpl<? extends NodeDelegate> next() {
            if (current == null) {
                throw new NoSuchElementException();
            }
            NodeImpl<? extends NodeDelegate> n = current;
            fetch();
            return n;
        }

        @Override
        public void remove() {
            throw new UnsupportedOperationException();
        }
    };
    final PrefetchIterator<NodeImpl<? extends NodeDelegate>> prefIt = new PrefetchIterator<NodeImpl<? extends NodeDelegate>>(sessionDelegate.sync(nodeIterator), new PrefetchOptions() {

        {
            size = result.getSize();
            fastSize = sessionContext.getFastQueryResultSize();
            fastSizeCallback = result;
        }
    });
    return new NodeIteratorAdapter(prefIt) {

        @Override
        public long getSize() {
            return prefIt.size();
        }
    };
}

Example 7 with NodeIteratorAdapter

use of org.apache.jackrabbit.commons.iterator.NodeIteratorAdapter in project jackrabbit by apache.

the class TraversingNodeResolver method findNode.

/**
     * @inheritDoc
     */
@Override
public Node findNode(Name propertyName, String value, Name ntName) throws RepositoryException {
    String sr = getSearchRoot(ntName);
    if (getSession().nodeExists(sr)) {
        try {
            Node root = getSession().getNode(sr);
            Set<Node> matchSet = new HashSet<Node>();
            collectNodes(value, Collections.singleton(propertyName), ntName, root.getNodes(), matchSet, true, 1);
            NodeIterator it = new NodeIteratorAdapter(matchSet);
            if (it.hasNext()) {
                return it.nextNode();
            }
        } catch (PathNotFoundException e) {
            // should not get here
            log.warn("Error while retrieving node " + sr);
        }
    }
    // else: searchRoot does not exist yet -> omit the search
    return null;
}

Example 8 with NodeIteratorAdapter

use of org.apache.jackrabbit.commons.iterator.NodeIteratorAdapter in project sling by apache.

the class MockNode method getNodes.

@Override
public NodeIterator getNodes(final String namePattern) throws RepositoryException {
    final Pattern pattern = Pattern.compile(namePattern);
    RangeIterator items = getMockedSession().listChildren(getPath(), new ItemFilter() {

        @Override
        public boolean accept(final ItemData item) throws RepositoryException {
            return item.isNode() && pattern.matcher(item.getName()).matches();
        }
    });
    return new NodeIteratorAdapter(items, items.getSize());
}

Example 9 with NodeIteratorAdapter

use of org.apache.jackrabbit.commons.iterator.NodeIteratorAdapter in project hippo by NHS-digital-website.

the class MockNode method getNodes.

@Override
public NodeIterator getNodes(final String namePattern) throws RepositoryException {
    final Pattern pattern = Pattern.compile(namePattern);
    RangeIterator items = getMockedSession().listChildren(getPath(), new ItemFilter() {

        @Override
        public boolean accept(final ItemData item) throws RepositoryException {
            return item.isNode() && pattern.matcher(item.getName()).matches();
        }
    });
    return new NodeIteratorAdapter(items, items.getSize());
}