1 /**
2 * This file Copyright (c) 2015-2018 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.resources.app.availability;
35
36 import info.magnolia.jcr.util.NodeTypes;
37 import info.magnolia.jcr.util.NodeUtil;
38 import info.magnolia.resourceloader.Resource;
39 import info.magnolia.resourceloader.jcr.JcrResourceOrigin;
40 import info.magnolia.ui.api.availability.AvailabilityDefinition;
41 import info.magnolia.ui.api.availability.AvailabilityRuleDefinition;
42
43 import javax.inject.Inject;
44 import javax.jcr.Node;
45 import javax.jcr.RepositoryException;
46
47 import org.slf4j.Logger;
48 import org.slf4j.LoggerFactory;
49
50 /**
51 * This rule returns {@code true} if the item {@link Resource} is not part of {@link JcrResourceOrigin},
52 * or if it is a node and has the {@code mgnl:deleted} mixin type.
53 */
54 public class IsDeletedRule extends AbstractResourceAvailabilityRule {
55
56 private static final Logger log = LoggerFactory.getLogger(IsDeletedRule.class);
57
58 @Inject
59 public IsDeletedRule(AvailabilityDefinition availabilityDefinition, AvailabilityRuleDefinition ruleDefinition) {
60 super(availabilityDefinition, ruleDefinition);
61 }
62
63 @Override
64 protected boolean isAvailableFor(Resource resource) {
65 return getJcrNode(resource)
66 .map(this::isDeleted)
67 .orElse(false);
68 }
69
70 private boolean isDeleted(Node node) {
71 try {
72 return NodeUtil.hasMixin(node, NodeTypes.Deleted.NAME);
73 } catch (RepositoryException e) {
74 log.warn("Error evaluating availability for node [{}], returning false: {}", NodeUtil.getPathIfPossible(node), e.getMessage());
75 }
76 return false;
77 }
78 }