1 /*
2 * #%L
3 * JRst :: Api
4 * %%
5 * Copyright (C) 2004 - 2010 CodeLutin
6 * %%
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Lesser General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Lesser Public License for more details.
16 *
17 * You should have received a copy of the GNU General Lesser Public
18 * License along with this program. If not, see
19 * <http://www.gnu.org/licenses/lgpl-3.0.html>.
20 * #L%
21 */
22
23 package org.nuiton.jrst.legacy;
24
25 import java.util.List;
26 import org.apache.commons.logging.Log;
27 import org.apache.commons.logging.LogFactory;
28 import org.dom4j.Document;
29 import org.dom4j.Element;
30 import org.dom4j.Node;
31 import org.dom4j.Text;
32
33 /**
34 * DocumentWalker.
35 *
36 * Created: 30 oct. 06 10:28:10
37 *
38 * @author poussin
39 * @version $Revision$
40 *
41 * Last update: $Date$
42 * by : $Author$
43 */
44 public class DocumentWalker {
45
46 static private Log log = LogFactory.getLog(DocumentWalker.class);
47
48 protected DocumentHandler handler;
49
50 /**
51 *
52 */
53 public DocumentWalker(DocumentHandler handler) {
54 this.handler = handler;
55 }
56
57 public void walk(Document doc) {
58 handler.startDocument(doc);
59 Element elem = doc.getRootElement();
60 walk(elem);
61 handler.endDocument(doc);
62 }
63
64 public void walk(Element elem) {
65 handler.startElement(elem);
66 for (Node node : (List<Node>) elem.content()) {
67 switch (node.getNodeType()) {
68 case Node.ELEMENT_NODE:
69 walk((Element) node);
70 break;
71 case Node.TEXT_NODE:
72 handler.text((Text) node);
73 break;
74 default:
75 log.warn("Not supported element type: "
76 + node.getNodeTypeName());
77 break;
78 }
79 }
80 handler.endElement(elem);
81 }
82 }