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1
11
12 package org.eclipse.update.internal.configurator;
13
14 import java.io.*;
15
16 import org.w3c.dom.*;
17
18
19 public class XMLPrintHandler {
20 public static final String  XML_COMMENT_END_TAG = "-->"; public static final String XML_COMMENT_BEGIN_TAG = "<!--"; public static final String XML_HEAD = "<?xml version=\"1.0\" encoding=\""; public static final String XML_HEAD_END_TAG = "?>"; public static final String XML_DBL_QUOTES = "\""; public static final String XML_SPACE = " "; public static final String XML_BEGIN_TAG = "<"; public static final String XML_END_TAG = ">"; public static final String XML_EQUAL = "="; public static final String XML_SLASH = "/";
32 public static void printBeginElement(Writer xmlWriter, String elementString) throws IOException{
33 StringBuffer temp = new StringBuffer (XML_BEGIN_TAG);
34 temp.append(elementString).append(XML_END_TAG).append("\n"); xmlWriter.write(temp.toString());
36
37 }
38
39 public static void printEndElement(Writer xmlWriter, String elementString) throws IOException{
40 StringBuffer temp = new StringBuffer (XML_BEGIN_TAG);
41 temp.append(XML_SLASH).append(elementString).append(XML_END_TAG).append("\n"); xmlWriter.write(temp.toString());
43
44 }
45
46
47 public static void printText(Writer xmlWriter, String text) throws IOException{
48 xmlWriter.write(encode(text).toString());
49 }
50
51 public static void printComment(Writer xmlWriter, String comment)throws IOException {
52 StringBuffer temp = new StringBuffer (XML_COMMENT_BEGIN_TAG);
53 temp.append(encode(comment).toString()).append(XML_COMMENT_END_TAG).append("\n"); xmlWriter.write(temp.toString());
55 }
56
57 public static void printHead(Writer xmlWriter, String encoding) throws IOException {
58 StringBuffer temp = new StringBuffer (XML_HEAD);
59 temp.append(encoding).append(XML_DBL_QUOTES).append(XML_HEAD_END_TAG).append("\n"); xmlWriter.write(temp.toString());
61 }
62
63 public static String wrapAttributeForPrint(String attribute, String value) throws IOException {
64 StringBuffer temp = new StringBuffer (XML_SPACE);
65 temp.append(attribute).append(XML_EQUAL).append(XML_DBL_QUOTES)
66 .append(encode(value).toString()).append(XML_DBL_QUOTES);
67 return temp.toString();
68
69 }
70
71 public static void printNode(Writer xmlWriter, Node node,String encoding) throws Exception {
72 if (node == null) {
73 return;
74 }
75
76 switch (node.getNodeType()) {
77 case Node.DOCUMENT_NODE: {
78 printHead(xmlWriter,encoding);
79 printNode(xmlWriter, ((Document) node).getDocumentElement(),encoding);
80 break;
81 }
82 case Node.ELEMENT_NODE: {
83 StringBuffer tempElementString = new StringBuffer (node.getNodeName());
85 NamedNodeMap attributeList = node.getAttributes();
86 if ( attributeList != null ) {
87 for(int i= 0; i <attributeList.getLength();i++){
88 Node attribute = attributeList.item(i);
89 tempElementString.append(wrapAttributeForPrint(attribute.getNodeName(),attribute.getNodeValue()));
90 }
91 }
92 printBeginElement(xmlWriter,tempElementString.toString());
93
94 NodeList childNodes = node.getChildNodes();
96 if (childNodes != null) {
97 int length = childNodes.getLength();
98 for (int i = 0; i < length; i++) {
99 printNode(xmlWriter, childNodes.item(i),encoding);
100 }
101 }
102
103 printEndElement(xmlWriter,node.getNodeName());
104 break;
105 }
106
107 case Node.TEXT_NODE: {
108 xmlWriter.write(encode(node.getNodeValue()).toString());
109 break;
110 }
111 default: {
112 throw new UnsupportedOperationException (Messages.XMLPrintHandler_unsupportedNodeType);
113
114 }
115 }
116
117 }
118
119 public static StringBuffer encode(String value) {
120 StringBuffer buf = new StringBuffer ();
121 for (int i = 0; i < value.length(); i++) {
122 char c = value.charAt(i);
123 switch (c) {
124 case '&' :
125 buf.append("&"); break;
127 case '<' :
128 buf.append("<"); break;
130 case '>' :
131 buf.append(">"); break;
133 case '\'' :
134 buf.append("'"); break;
136 case '\"' :
137 buf.append("""); break;
139 default :
140 buf.append(c);
141 break;
142 }
143 }
144 return buf;
145 }
146 }
147 |
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