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 org.jdom2.Element;
22 import org.mycore.common.MCRConstants;
23
24 /**
25 * Compares and merges mods:extent elements.
26 *
27 * @author Frank L\u00FCtzenkirchen
28 */
29 public class MCRExtentMerger extends MCRMerger {
30
31 public void setElement(Element element) {
32 super.setElement(element);
33 }
34
35 @Override
36 public boolean isProbablySameAs(MCRMerger other) {
37 return (other instanceof MCRExtentMerger);
38 }
39
40 private boolean hasStartPage() {
41 return element.getChild("start", MCRConstants.MODS_NAMESPACE) != null;
42 }
43
44 @Override
45 public void mergeFrom(MCRMerger other) {
46 if (element.getParentElement().getName().equals("physicalDescription")) {
47 super.mergeFrom(other);
48 } else { // parent is "mods:part"
49 if ((!this.hasStartPage()) && ((MCRExtentMerger) other).hasStartPage()) {
50 mergeAttributes(other);
51 this.element.setContent(other.element.cloneContent());
52 }
53 }
54 }
55 }