|
1 package com.thoughtworks.xstream.io.xml;
2
3 import com.thoughtworks.xstream.converters.ErrorWriter;
4 import com.thoughtworks.xstream.io.HierarchicalStreamReader;
5 import org.dom4j.Document;
6 import org.dom4j.Element;
7
8 import java.util.LinkedList  ;
9
10 public class Dom4JReader implements HierarchicalStreamReader {
11
12 private Element currentElement;
13 private LinkedList pointers = new LinkedList ();
14
15 public Dom4JReader(Element rootElement) {
16 currentElement = rootElement;
17 pointers.addLast(new Pointer());
18 }
19
20 public Dom4JReader(Document document) {
21 currentElement = document.getRootElement();
22 pointers.addLast(new Pointer());
23 }
24
25 public String getNodeName() {
26 return currentElement.getName();
27 }
28
29 public String getValue() {
30 return currentElement.getText();
31 }
32
33 public String getAttribute(String name) {
34 return currentElement.attributeValue(name);
35 }
36
37 public Object peekUnderlyingNode() {
38 return currentElement;
39 }
40
41 private class Pointer {
42 public int v;
43 }
44
45 public boolean hasMoreChildren() {
46 Pointer pointer = (Pointer) pointers.getLast();
47
48 if (pointer.v < currentElement.elements().size()) {
49 return true;
50 } else {
51 return false;
52 }
53 }
54
55 public void moveUp() {
56 currentElement = currentElement.getParent();
57 pointers.removeLast();
58 }
59
60 public void moveDown() {
61 Pointer pointer = (Pointer) pointers.getLast();
62 pointers.addLast(new Pointer());
63
64 currentElement = (Element) currentElement.elements().get(pointer.v);
65
66 pointer.v++;
67 }
68
69 public void appendErrors(ErrorWriter errorWriter) {
70 errorWriter.add("xpath", currentElement.getPath());
71 }
72
73 }
74 |
Popular Tags |
Java API By Example, From Geeks To Geeks.