1 /**
2 * This file Copyright (c) 2017 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.rest.delivery.jcr.filter;
35
36 import info.magnolia.jcr.iterator.FilteringRangeIterator;
37 import info.magnolia.jcr.wrapper.ChildFilteringContentDecorator;
38
39 import java.util.Collection;
40
41 import javax.jcr.Node;
42 import javax.jcr.NodeIterator;
43
44 /**
45 * NodeIterator that applies wrappers and filtering children of nodes by node types.
46 */
47 public class ChildNodeTypesFilteringNodeIterator extends FilteringRangeIterator<Node> implements NodeIterator {
48
49 private final Collection<String> primaryNodeTypes;
50 private final boolean evaluateSupertypes;
51
52 public ChildNodeTypesFilteringNodeIterator(NodeIterator nodeIterator, Collection<String> primaryNodeTypes) {
53 this (nodeIterator, primaryNodeTypes, true);
54 }
55
56 public ChildNodeTypesFilteringNodeIterator(NodeIterator nodeIterator, Collection<String> primaryNodeTypes, boolean evaluateSupertypes) {
57 super(nodeIterator);
58 this.primaryNodeTypes = primaryNodeTypes;
59 this.evaluateSupertypes = evaluateSupertypes;
60 }
61
62 @Override
63 public Node next() {
64 return wrapNode(super.next());
65 }
66
67 @Override
68 public Node nextNode() {
69 return wrapNode(super.next());
70 }
71
72 @Override
73 protected boolean evaluate(Node node) {
74 return true;
75 }
76
77 protected Node wrapNode(Node node) {
78 ChildFilteringContentDecorator depthDecorator = new ChildFilteringContentDecorator(new NodeTypesPredicate(primaryNodeTypes, evaluateSupertypes), true);
79 return depthDecorator.wrapNode(node);
80 }
81 }