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.resourceloader.Resource;
37 import info.magnolia.resourceloader.jcr.JcrResourceOrigin;
38 import info.magnolia.resources.app.data.ResourceHelper;
39 import info.magnolia.ui.api.availability.AvailabilityDefinition;
40 import info.magnolia.ui.api.availability.AvailabilityRuleDefinition;
41
42 import java.util.Optional;
43
44 import javax.inject.Inject;
45 import javax.jcr.Node;
46
47 import org.slf4j.Logger;
48 import org.slf4j.LoggerFactory;
49
50 import com.machinezoo.noexception.Exceptions;
51
52 /**
53 * This rule returns {@code true} if the item {@link Resource} does have {@link JcrResourceOrigin#TEXT_PROPERTY} or
54 * has a name that conforms to text type resource as per {@link ResourceHelper#isTextMediaType(String)}.
55 * <p>
56 * This rule returns false if given item has binary sub-node {@link JcrResourceOrigin#BINARY_NODE_NAME}.
57 * <p>
58 */
59 public class IsNotBinaryFileRule extends AbstractResourceAvailabilityRule implements ResourceHelper {
60
61 private static final Logger log = LoggerFactory.getLogger(IsNotBinaryFileRule.class);
62
63 @Inject
64 public IsNotBinaryFileRule(AvailabilityDefinition availabilityDefinition, AvailabilityRuleDefinition ruleDefinition) {
65 super(availabilityDefinition, ruleDefinition);
66 }
67
68 @Override
69 protected boolean isAvailableFor(Resource resource) {
70 return getJcrNode(resource)
71 .map(this::isNotBinary)
72 .orElseGet(() ->
73 // Other resources
74 Optional.ofNullable(resource.getName())
75 .map(this::isTextMediaType)
76 .orElse(false)
77 );
78 }
79
80 private boolean isNotBinary(Node node) {
81 return Exceptions.wrap().get(() -> node.hasProperty(JcrResourceOrigin.TEXT_PROPERTY));
82 }
83 }