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1   /**
2    * This file Copyright (c) 2011-2018 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.jcr.predicate;
35  
36  import javax.jcr.Node;
37  import javax.jcr.RepositoryException;
38  
39  import org.slf4j.Logger;
40  import org.slf4j.LoggerFactory;
41  
42  /**
43   * Predicate filtering based on the primary type of the node.
44   */
45  public class NodeTypePredicate extends AbstractPredicate<Node> {
46  
47      private static final Logger log = LoggerFactory.getLogger(NodeTypePredicate.class);
48      private final String primaryNodeType;
49      private final boolean evaluateSupertypes;
50  
51      public NodeTypePredicate(String primaryNodeType) {
52          this(primaryNodeType, false);
53      }
54  
55      public NodeTypePredicate(String primaryNodeType, boolean evaluateSupertypes) {
56          if (primaryNodeType == null) {
57              throw new NullPointerException("Type must have a value.");
58          }
59          this.primaryNodeType = primaryNodeType;
60          this.evaluateSupertypes = evaluateSupertypes;
61      }
62  
63      @Override
64      public boolean evaluateTyped(Node t) {
65          try {
66              if (evaluateSupertypes) {
67                  return t.isNodeType(primaryNodeType);
68              }
69              return primaryNodeType.equals(t.getPrimaryNodeType().getName());
70          } catch (RepositoryException e) {
71              log.error("Failed to read type of node {}", t);
72              return false;
73          }
74      }
75  }