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1
5 package com.opensymphony.workflow.loader;
6
7 import com.opensymphony.workflow.util.XMLizable;
8
9 import org.w3c.dom.Element  ;
10 import org.w3c.dom.Node ;
11 import org.w3c.dom.NodeList ;
12
13 import java.io.PrintWriter ;
14
15 import java.util.ArrayList ;
16 import java.util.List ;
17
18
19
24 public class XMLUtil {
25
27 public static Element getChildElement(Element parent, String childName) {
28 NodeList children = parent.getChildNodes();
29 int size = children.getLength();
30
31 for (int i = 0; i < size; i++) {
32 Node node = children.item(i);
33
34 if (node.getNodeType() == Node.ELEMENT_NODE) {
35 Element element = (Element ) node;
36
37 if (childName.equals(element.getNodeName())) {
38 return element;
39 }
40 }
41 }
42
43 return null;
44 }
45
46 public static List getChildElements(Element parent, String childName) {
47 NodeList children = parent.getChildNodes();
48 List list = new ArrayList ();
49 int size = children.getLength();
50
51 for (int i = 0; i < size; i++) {
52 Node node = children.item(i);
53
54 if (node.getNodeType() == Node.ELEMENT_NODE) {
55 Element element = (Element ) node;
56
57 if (childName.equals(element.getNodeName())) {
58 list.add(element);
59 }
60 }
61 }
62
63 return list;
64 }
65
66 public static String getChildText(Element parent, String childName) {
67 Element child = getChildElement(parent, childName);
68
69 if (child == null) {
70 return null;
71 }
72
73 return getText(child);
74 }
75
76 public static String getText(Element node) {
77 StringBuffer sb = new StringBuffer ();
78 NodeList list = node.getChildNodes();
79
80 for (int i = 0; i < list.getLength(); i++) {
81 Node child = list.item(i);
82
83 switch (child.getNodeType()) {
84 case Node.CDATA_SECTION_NODE:
85 case Node.TEXT_NODE:
86 sb.append(child.getNodeValue());
87 }
88 }
89
90 return sb.toString();
91 }
92
93 public static String encode(Object string) {
94 if (string == null) {
95 return "";
96 }
97
98 char[] chars = string.toString().toCharArray();
99 StringBuffer out = new StringBuffer ();
100
101 for (int i = 0; i < chars.length; i++) {
102 switch (chars[i]) {
103 case '&':
104 out.append("&");
105
106 break;
107
108 case '<':
109 out.append("<");
110
111 break;
112
113 case '>':
114 out.append(">");
115
116 break;
117
118 case '\"':
119 out.append(""");
120
121 break;
122
123 default:
124 out.append(chars[i]);
125 }
126 }
127
128 return out.toString();
129 }
130
131 public static void printIndent(PrintWriter out, int indent) {
132 for (int i = 0; i < indent; i++) {
133 out.print(XMLizable.INDENT);
134 }
135 }
136 }
137 |
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