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1 package com.ibatis.common.xml;
2
3 import org.w3c.dom.NamedNodeMap  ;
4 import org.w3c.dom.Node ;
5
6 import java.util.Properties ;
7
8 public class NodeletUtils {
9
10 public static boolean getBooleanAttribute(Properties attribs, String name, boolean def) {
11 String value = attribs.getProperty(name);
12 if (value == null) {
13 return def;
14 } else {
15 return "true".equals(value);
16 }
17 }
18
19 public static int getIntAttribute(Properties attribs, String name, int def) {
20 String value = attribs.getProperty(name);
21 if (value == null) {
22 return def;
23 } else {
24 return Integer.parseInt(value);
25 }
26 }
27
28 public static Properties parseAttributes(Node n) {
29 return parseAttributes(n, null);
30 }
31
32 public static Properties parseAttributes(Node n, Properties variables) {
33 Properties attributes = new Properties ();
34 NamedNodeMap attributeNodes = n.getAttributes();
35 for (int i = 0; i < attributeNodes.getLength(); i++) {
36 Node attribute = attributeNodes.item(i);
37 String value = parsePropertyTokens(attribute.getNodeValue(), variables);
38 attributes.put(attribute.getNodeName(), value);
39 }
40 return attributes;
41 }
42
43 public static String parsePropertyTokens(String string, Properties variables) {
44 final String OPEN = "${";
45 final String CLOSE = "}";
46
47 String newString = string;
48 if (newString != null && variables != null) {
49 int start = newString.indexOf(OPEN);
50 int end = newString.indexOf(CLOSE);
51
52 while (start > -1 && end > start) {
53 String prepend = newString.substring(0, start);
54 String append = newString.substring(end + CLOSE.length());
55 String propName = newString.substring(start + OPEN.length(), end);
56 String propValue = variables.getProperty(propName);
57 if (propValue == null) {
58 newString = prepend + propName + append;
59 } else {
60 newString = prepend + propValue + append;
61 }
62 start = newString.indexOf(OPEN);
63 end = newString.indexOf(CLOSE);
64 }
65 }
66 return newString;
67 }
68
69
70 }
71 |
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