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1   /**
2    * This file Copyright (c) 2019 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.ui.form.field.definition.migration;
35  
36  import info.magnolia.dynamic.MagnoliaProxy;
37  import info.magnolia.ui.field.StaticFieldViewDefinition;
38  import info.magnolia.ui.form.field.definition.FieldDefinition;
39  
40  import org.slf4j.Logger;
41  import org.slf4j.LoggerFactory;
42  
43  import net.sf.cglib.proxy.Enhancer;
44  
45  /**
46   * Fallback field definition converter which fallbacks to {@link StaticFieldViewDefinition} displaying error message.
47   *
48   * @param <T>
49   */
50  public class FallbackFieldDefinitionConverter<T> extends AbstractComplexFieldDefinitionConverter<T, StaticFieldViewDefinition<T>, FieldDefinition> {
51  
52      private final Logger log = LoggerFactory.getLogger(FallbackFieldDefinitionConverter.class);
53  
54      @Override
55      public StaticFieldViewDefinition<T> convert(FieldDefinition oldDefinition) {
56          StaticFieldViewDefinition<T> newDefinition = createNewDefinition(oldDefinition);
57          newDefinition.setName(oldDefinition.getName());
58          newDefinition.setLabel(oldDefinition.getLabel());
59  
60          Class oldDefinitionClass = Enhancer.isEnhanced(oldDefinition.getClass()) || MagnoliaProxy.class.isAssignableFrom(oldDefinition.getClass()) ? oldDefinition.getClass().getSuperclass() : oldDefinition.getClass();
61          String message = "No converter for old " + oldDefinitionClass + ". Falling back to " + StaticFieldViewDefinition.class + ".";
62          log.error(message);
63          newDefinition.setValue("Conversion not supported.");
64          newDefinition.setDescription(message);
65          return newDefinition;
66      }
67  
68      @Override
69      StaticFieldViewDefinition<T> createNewDefinition(FieldDefinition oldDefinition) {
70          return new StaticFieldViewDefinition<>();
71      }
72  }