View Javadoc
1   /*
2    * This file is part of ***  M y C o R e  ***
3    * See http://www.mycore.de/ for details.
4    *
5    * MyCoRe is free software: you can redistribute it and/or modify
6    * it under the terms of the GNU General Public License as published by
7    * the Free Software Foundation, either version 3 of the License, or
8    * (at your option) any later version.
9    *
10   * MyCoRe is distributed in the hope that it will be useful,
11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   * GNU General Public License for more details.
14   *
15   * You should have received a copy of the GNU General Public License
16   * along with MyCoRe.  If not, see <http://www.gnu.org/licenses/>.
17   */
18  
19  package org.mycore.mods.merger;
20  
21  import java.nio.charset.StandardCharsets;
22  import java.net.URLDecoder;
23  import java.util.Locale;
24  
25  import org.jdom2.Element;
26  
27  /**
28   * Compares and merges mods:identifier elements.
29   * Two identifiers are assumed to be the same when they are equals, neglecting any hyphens.
30   * At merge, the identifier containing hyphens wins, because it is regarded prettier ;-)
31   *
32   * @author Frank L\u00FCtzenkirchen
33   */
34  public class MCRIdentifierMerger extends MCRMerger {
35  
36      @Override
37      public void setElement(Element element) {
38          super.setElement(element);
39      }
40  
41      private String getType() {
42          return this.element.getAttributeValue("type", "");
43      }
44  
45      private String getSimplifiedID() {
46          return URLDecoder.decode(this.element.getTextNormalize().toLowerCase(Locale.ENGLISH), StandardCharsets.UTF_8)
47              .replace("-", "");
48      }
49  
50      @Override
51      public boolean isProbablySameAs(MCRMerger other) {
52          if (!(other instanceof MCRIdentifierMerger)) {
53              return false;
54          }
55  
56          MCRIdentifierMerger oid = (MCRIdentifierMerger) other;
57          return this.getType().equals(oid.getType())
58              && this.getSimplifiedID().equals(oid.getSimplifiedID());
59      }
60  
61      @Override
62      public void mergeFrom(MCRMerger other) {
63          if (!this.element.getText().contains("-") && other.element.getText().contains("-")) {
64              this.element.setText(other.element.getText());
65          }
66      }
67  }