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1
21
22 package nu.xom.benchmarks;
23
24 import java.io.IOException  ;
25
26 import nu.xom.Attribute;
27 import nu.xom.Builder;
28 import nu.xom.Comment;
29 import nu.xom.DocType;
30 import nu.xom.Document;
31 import nu.xom.Element;
32 import nu.xom.Node;
33 import nu.xom.ParsingException;
34 import nu.xom.ProcessingInstruction;
35 import nu.xom.Text;
36
37
50 class FastReproducer {
51
52 public static void main(String [] args) {
53
54 if (args.length <= 0) {
55 System.out.println(
56 "Usage: java nu.xom.benchmarks.Reproducer URL"
57 );
58 return;
59 }
60
61 FastReproducer iterator = new FastReproducer();
62 Builder parser = new Builder();
63 try {
64 Document document = parser.build(args[0]);
68
69 long prewalk = System.currentTimeMillis();
70 iterator.copy(document);
72 long postwalk = System.currentTimeMillis();
73 System.out.println((postwalk - prewalk)
74 + "ms to walk tree");
75
76 }
77 catch (IOException ex) {
78 System.out.println(ex);
79 }
80 catch (ParsingException ex) {
81 System.out.println(ex);
82 }
83
84 }
85
86 private Document copy(Document doc)
87 throws IOException {
88
89 Element originalRoot = doc.getRootElement();
90 Element root = copy(originalRoot, null);
91 Document copy = new Document(root);
92 copy.setBaseURI(doc.getBaseURI());
93 for (int i = 0; i < doc.getChildCount(); i++) {
94 Node child = doc.getChild(i);
95 if (child == originalRoot) continue;
96 Node node = copy(child);
97 copy.insertChild(node, i);
98 }
99 return copy;
100
101 }
102
103
104 private Element copy(Element original, Element parent) {
105
106 Element copy = new Element(original.getQualifiedName(), new String (original.getNamespaceURI()));
107 if (parent != null) parent.appendChild(copy);
108 for (int i = original.getAttributeCount()-1; i >= 0; i--) {
109 Attribute att = original.getAttribute(i);
110 copy.addAttribute(copy(att));
111 }
112
116 for (int i = 0; i < original.getChildCount(); i++) {
117 Node child = original.getChild(i);
118 if (child instanceof Element) {
119 copy((Element) child, copy);
120 }
121 else {
122 Node node = copy(child);
123 copy.appendChild(node);
124 }
125 }
126 return copy;
127
128 }
129
130
131 private Node copy(Node node) {
132
133 if (node instanceof Text) {
134 return copy((Text) node);
135 }
136 else if (node instanceof Element) {
137 return copy((Element) node);
138 }
139 else if (node instanceof Comment) {
140 return copy((Comment) node);
141 }
142 else if (node instanceof ProcessingInstruction) {
143 return copy((ProcessingInstruction) node);
144 }
145 else if (node instanceof DocType) {
146 return copy((DocType) node);
147 }
148 return null;
149
150 }
151
152
153 private Node copy(Text text) {
154 return new Text(text.getValue());
155 }
156
157
158 private Node copy(Comment comment) {
159 return new Comment(comment.getValue());
160 }
161
162
163 private Node copy(ProcessingInstruction pi) {
164 return new ProcessingInstruction(pi.getTarget(), pi.getValue());
165 }
166
167
168 private Node copy(DocType doctype) {
169 return new DocType(doctype.getRootElementName(), doctype.getPublicID(), doctype.getSystemID());
170 }
171
172
173 private Attribute copy(Attribute original) {
174
175 Attribute copy = new Attribute(original.getQualifiedName(),
176 original.getNamespaceURI(),
177 original.getValue(),
178 original.getType());
179 return copy;
180
181 }
182
183
184 private void warmup(Document doc, int numPasses)
185 throws IOException , ParsingException {
186
187 for (int i = 0; i < numPasses; i++) {
188 copy(doc);
189 }
190
191 }
192
193
194
195 private void followNode(Node node) throws IOException {
197
198 for (int i = 0; i < node.getChildCount(); i++) {
199 followNode(node.getChild(i));
200 }
201
202 }
203
204 } |
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