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1
21
22 package nu.xom.samples;
23
24 import nu.xom.Attribute;
25 import nu.xom.Builder;
26 import nu.xom.Comment;
27 import nu.xom.DocType;
28 import nu.xom.Document;
29 import nu.xom.Element;
30 import nu.xom.Node;
31 import nu.xom.ProcessingInstruction;
32 import nu.xom.Text;
33
34
47 public class SourceCodeGenerator {
48
49
57 public static void main(String  [] args) {
58
59 Builder builder = new Builder();
60 try {
61 Document input = builder.build(args[0]);
62 generateClass(input);
63 }
64 catch (Exception ex) {
65 System.err.println(ex);
66 ex.printStackTrace();
67 }
68
69 }
70
71 private static int elementCount = 1;
72
73 public static void generateClass(Document doc) {
74 System.out.println("import nu.xom.*;");
75 System.out.println();
76 System.out.println();
77 System.out.println("public class CodeMaker {");
78 System.out.println();
79 System.out.println(" public static void main(String[] args) throws Exception {");
80 generateDoc(doc);
81 System.out.println(" Serializer serializer = new Serializer(System.out);");
82 System.out.println(" serializer.write(doc);");
83 System.out.println(" }");
84 System.out.println();
85 System.out.println("}");
86 }
87
88 public static void generateSource(Node node, String parent) {
89
90 if (node instanceof Element) {
91 Element element = (Element) node;
92 String name = "element" + elementCount;
93 System.out.println(" Element " + name + " = "
94 + "new Element(\"" + element.getQualifiedName()
95 + "\", \"" + element.getNamespaceURI() + "\");");
96 if ("doc".equals(parent)) {
97 System.out.println(" doc.setRootElement(" + name + ");");
98 }
99 else {
100 System.out.println(" " + parent + ".appendChild(" + name + ");");
101 }
102
103 for (int i = 0; i < element.getAttributeCount(); i++) {
104 Attribute a = element.getAttribute(i);
105 System.out.println(" " + name + ".addAttribute(new Attribute(\""
106 + a.getQualifiedName() + "\", \""
107 + a.getNamespaceURI() + "\", \""
108 + a.getValue() + "\"));");
109 }
110
111 for (int i = 0; i < element.getNamespaceDeclarationCount(); i++) {
112 String prefix = element.getNamespacePrefix(i);
113 System.out.println(" " + name + ".addNamespaceDeclaration(\""
114 + prefix + "\", \""
115 + element.getNamespaceURI(prefix) + "\");");
116 }
117
118 elementCount++;
119 for (int i = 0; i < element.getChildCount(); i++) {
120 generateSource(element.getChild(i), name);
121 }
122
123
124 }
125 else if (node instanceof ProcessingInstruction) {
126 ProcessingInstruction pi = (ProcessingInstruction) node;
127 System.out.println(" pi = new ProcessingInstruction(\"" +
128 pi.getTarget() + "\", \"" + javaEscape(pi.getValue()) + "\");");
129 System.out.println(" " + parent + ".appendChild(pi);");
130 }
131 else if (node instanceof Comment) {
132 Comment comment = (Comment) node;
133 System.out.println(" comment = new Comment(\""
134 + javaEscape(comment.getValue()) + "\");");
135 System.out.println(" " + parent + ".appendChild(comment);");
136 }
137 else if (node instanceof Text) {
138 Text text = (Text) node;
139 System.out.println(" text = new Text(\""
140 + javaEscape(text.getValue()) + "\");");
141 System.out.println(" " + parent + ".appendChild(text);");
142 }
143 else if (node instanceof DocType) {
144 DocType doctype = (DocType) node;
145 String publicID = doctype.getPublicID();
146 String systemID = doctype.getSystemID();
147 System.out.println(" DocType doctype = new DocType(\""
148 + doctype.getRootElementName() + "\");");
149 if (systemID != null) {
150 System.out.println(" doctype.setSystemID(\""
151 + systemID + "\");");
152 }
153 if (publicID != null) {
154 System.out.println(" doctype.setPublicID(\""
155 + publicID + "\");");
156 }
157 System.out.println(" doc.setDocType(doctype);");
158
159
160 }
161
162 }
163
164 private static String javaEscape(String text) {
165 StringBuffer result = new StringBuffer ();
166 for (int i = 0; i < text.length(); i++) {
167 char c = text.charAt(i);
168 switch (c) {
169 case '"':
170 result.append("\\\"");
171 break;
172 case '\n':
173 result.append("\\n");
174 break;
175 case '\r':
176 result.append("\\r");
177 break;
178 case '\t':
179 result.append("\\t");
180 break;
181 case '\\':
182 result.append("\\\\");
183 break;
184 default:
185 result.append(c);
186 }
187
188 }
189 return result.toString();
190 }
191
192 public static void generateDoc(Document doc) {
193
194 System.out.println(" Comment comment;");
195 System.out.println(" Text text;");
196 System.out.println(" ProcessingInstruction pi;");
197 System.out.println(" Document doc = new Document(new Element(\"root\"));");
198 for (int i = 0; i < doc.getChildCount(); i++) {
199 generateSource(doc.getChild(i), "doc");
200 }
201
202 }
203
204 }
205 |
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