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1
24 package org.riotfamily.forms.support;
25
26 import org.riotfamily.common.beans.ObjectWrapper;
27 import org.riotfamily.common.xml.XmlUtils;
28 import org.springframework.beans.AbstractPropertyAccessor;
29 import org.springframework.beans.BeansException;
30 import org.springframework.util.xml.DomUtils;
31 import org.w3c.dom.Element  ;
32 import org.w3c.dom.Node ;
33
34 public class XmlElementWrapper extends AbstractPropertyAccessor
35 implements ObjectWrapper {
36
37 private static final String ATTRIBUTE_PREFIX = "@";
38
39 private static final String TEXT_VALUE = "text()";
40
41 public Element element;
42
43 private String elementName;
44
45
46 public XmlElementWrapper(String elementName) {
47 this.elementName = elementName;
48 }
49
50 public Class getObjectClass() {
51 return Element .class;
52 }
53
54 public void setObject(Object object) {
55 if (object != null) {
56 element = (Element ) object;
57 }
58 else {
59 element = XmlUtils.createDocument().createElement(elementName);
60 }
61 }
62
63 public Object getObject() {
64 return element;
65 }
66
67 public Object getPropertyValue(String name) throws BeansException {
68 if (element == null) {
69 return null;
70 }
71 if (name.startsWith(ATTRIBUTE_PREFIX)) {
72 return element.getAttribute(name.substring(1));
73 }
74 if (name.equals(TEXT_VALUE)) {
75 return DomUtils.getTextValue(element);
76 }
77 Element child = XmlUtils.getFirstChildByTagName(element, name);
78 return child != null ? DomUtils.getTextValue(child) : null;
79 }
80
81 public void setPropertyValue(String name, Object value) throws BeansException {
82 if (element == null) {
83 element = XmlUtils.createDocument().createElement(elementName);
84 }
85 if (name.startsWith(ATTRIBUTE_PREFIX)) {
86 if (value != null) {
87 element.setAttribute(name.substring(1), value.toString());
88 }
89 else {
90 element.removeAttribute(name);
91 }
92 }
93 else if (name.equals(TEXT_VALUE)) {
94 XmlUtils.setTextValue(element, value.toString());
95 }
96 if (value instanceof Element ) {
97 Element child = XmlUtils.getFirstChildByTagName(element, name);
98 XmlUtils.removeNode(child);
99 child = (Element ) value;
100 Node node = element.getOwnerDocument().importNode(child, true);
101 element.appendChild(node);
102 }
103 else {
104 Element child = XmlUtils.getFirstChildByTagName(element, name);
105 if (value != null) {
106 if (child == null) {
107 child = element.getOwnerDocument().createElement(name);
108 element.appendChild(child);
109 }
110 XmlUtils.setTextValue(child, (String ) value);
111 }
112 else {
113 XmlUtils.removeNode(child);
114 }
115 }
116 }
117
118 public boolean isReadableProperty(String propertyName) throws BeansException {
119 return true;
120 }
121
122 public boolean isWritableProperty(String propertyName) throws BeansException {
123 return true;
124 }
125
126 }
127 |
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