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 package org.mycore.common.xml;
19
20 import org.jdom2.Element;
21 import org.jdom2.Namespace;
22 import org.jdom2.filter.ElementFilter;
23
24 /**
25 * A jdom-filter which compares attribute values.
26 */
27 public class MCRAttributeValueFilter extends ElementFilter {
28 private static final long serialVersionUID = 1L;
29
30 protected String attrKey;
31
32 protected String attrValue;
33
34 protected Namespace ns;
35
36 public MCRAttributeValueFilter(String attrKey, Namespace ns, String attrValue) {
37 super();
38 this.attrKey = attrKey;
39 this.attrValue = attrValue;
40 this.ns = ns;
41 }
42
43 public Element filter(Object arg0) {
44 Element e = super.filter(arg0);
45 if (e == null) {
46 return null;
47 }
48 String value = e.getAttributeValue(attrKey, ns);
49 return (value != null && value.equals(attrValue)) ? e : null;
50 }
51 }