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1
2 import java.io.File  ;
3 import java.io.FileWriter ;
4 import java.io.IOException ;
5 import java.util.List ;
6
7 import javax.xml.transform.Source ;
8 import javax.xml.transform.Transformer ;
9 import javax.xml.transform.TransformerFactory ;
10 import javax.xml.transform.stream.StreamSource ;
11 import org.dom4j.Document;
12 import org.dom4j.DocumentHelper;
13 import org.dom4j.Element;
14 import org.dom4j.Node;
15 import org.dom4j.XPath;
16 import org.dom4j.io.DOMWriter;
17 import org.dom4j.io.DocumentResult;
18 import org.dom4j.io.DocumentSource;
19 import org.dom4j.io.OutputFormat;
20 import org.dom4j.io.SAXReader;
21 import org.dom4j.io.XMLWriter;
22
23 public class PerfDOM4J {
24
25 public static void main(String args[]) {
26 Document doc;
27
28 try {
29 int numrec = 1;
30
31 numrec = 10000;
32 System.out.println("\n10000 Elements ------------------");
33 doc = PerfDOM4J.createDocument(numrec, 20, 1);
34 PerfDOM4J.createW3CDOM(doc);
35 PerfDOM4J.write(doc, "dom4j_" + numrec + ".xml");
36 PerfDOM4J.xpath(doc, "/*/*/Attr1x1", 1);
39 PerfDOM4J.xpath(doc, "/*/*/Attr1x5000", 1);
40 PerfDOM4J.xpath(doc, "/*/*/Attr1x9999", 1);
41 PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x1", 1);
42 PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x5000", 1);
43 PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x9999", 1);
44 PerfDOM4J.xpathNodes(doc, "/*/Item", 3);
45
46 numrec = 1000;
47 System.out.println("\n1000 Elements -------------------");
48 doc = PerfDOM4J.createDocument(numrec, 20, 1);
49 PerfDOM4J.createW3CDOM(doc);
50 PerfDOM4J.write(doc, "dom4j_" + numrec + ".xml");
51 PerfDOM4J.parse(numrec, 3);
52 PerfDOM4J.transform(doc, "item.xslt", 3);
53 PerfDOM4J.xpath(doc, "/*/*/Attr1x1", 3);
54 PerfDOM4J.xpath(doc, "/*/*/Attr1x500", 3);
55 PerfDOM4J.xpath(doc, "/*/*/Attr1x999", 3);
56 PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x1", 3);
57 PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x500", 3);
58 PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x999", 3);
59 PerfDOM4J.xpathNodes(doc, "/*/Item", 10);
60
61 numrec = 100;
62 System.out.println("\n100 Elements --------------------");
63 doc = PerfDOM4J.createDocument(numrec, 20, 10);
64 PerfDOM4J.createW3CDOM(doc);
65 PerfDOM4J.write(doc, "dom4j_" + numrec + ".xml");
66 PerfDOM4J.parse(numrec, 10);
67 PerfDOM4J.transform(doc, "item.xslt", 10);
68 PerfDOM4J.xpath(doc, "/*/*/Attr1x1", 10);
69 PerfDOM4J.xpath(doc, "/*/*/Attr1x50", 10);
70 PerfDOM4J.xpath(doc, "/*/*/Attr1x99", 10);
71 PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x1", 10);
72 PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x50", 10);
73 PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x99", 10);
74 PerfDOM4J.xpathNodes(doc, "/*/Item", 100);
75
76 numrec = 10;
77 System.out.println("\n10 Elements ---------------------");
78 doc = PerfDOM4J.createDocument(numrec, 20, 100);
79 PerfDOM4J.createW3CDOM(doc);
80 PerfDOM4J.write(doc, "dom4j_" + numrec + ".xml");
81 PerfDOM4J.parse(numrec, 100);
82 PerfDOM4J.transform(doc, "item.xslt", 10);
83 PerfDOM4J.xpath(doc, "/*/*/Attr1x5", 1000);
84 PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x1", 1000);
85 PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x5", 1000);
86 PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x9", 1000);
87 PerfDOM4J.xpathNodes(doc, "/*/Item", 1000);
88
89 numrec = 1;
90 System.out.println("\n1 Element -----------------------");
91 doc = PerfDOM4J.createDocument(numrec, 20, 100);
92 PerfDOM4J.createW3CDOM(doc);
93 PerfDOM4J.write(doc, "dom4j_" + numrec + ".xml");
94 PerfDOM4J.parse(numrec, 100);
95 PerfDOM4J.transform(doc, "item.xslt", 10);
96 PerfDOM4J.xpath(doc, "/*/*/Attr1x1", 1000);
97 PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x1", 1000);
98 PerfDOM4J.xpathNodes(doc, "/*/Item", 1000);
99
100 } catch (IOException ie) {
101 ie.printStackTrace();
102 }
103 }
104
105 public static Document createDocument(int iNumRecs, int iNumFlds, int pp) {
106
107 double start = System.currentTimeMillis();
108 Document document = null;
109 for (int kk = 0; kk < pp; kk++) {
110 document = DocumentHelper.createDocument();
111
112 Element root = document.addElement("ItemResultSet");
113 for (int ii = 0; ii < iNumRecs; ii++) {
114
115 Element Record = root.addElement("Item");
116 for (int jj = 0; jj < iNumFlds; jj++) {
117 Record.addElement("Attr" + jj + "x" + ii).addText(
118 "123456789");
119 }
120
121 }
122 }
123 double end = System.currentTimeMillis();
124
125 System.err.println("Creation time : " + (end - start) / pp);
126
127 return document;
128 }
129
130 public static Document parse(int iNumRecs, int kk) {
131
132 File file = new File ("dom4j_" + iNumRecs + ".xml");
133 double start = System.currentTimeMillis();
134 Document document = null;
135 for (int pp = 0; pp < kk; pp++) {
136 try {
137 SAXReader SAXrd = new SAXReader();
138 SAXrd.read(file);
139 } catch (Exception e) {
140 e.printStackTrace();
141 }
142 }
143 double end = System.currentTimeMillis();
144
145 System.err.println("Parsing time for :" + 1.000 * (end - start) / kk);
146
147 return document;
148 }
149
150 public static void createW3CDOM(Document doc) {
151
152 long start = System.currentTimeMillis();
153 try {
154 DOMWriter dw = new DOMWriter();
155 dw.write(doc);
156
157 } catch (Exception de) {
158 }
159
160 long end = System.currentTimeMillis();
161
162 System.err.println("W3C Creation time for :" + (end - start));
163 }
164
165 public static void write(Document document, String name) throws IOException {
166
167 long start = System.currentTimeMillis();
168
170 try {
171 OutputFormat format = OutputFormat.createPrettyPrint();
172 XMLWriter writer = new XMLWriter(new FileWriter (name), format);
173 writer.write(document);
174 writer.close();
175
176 } catch (IOException e) {
177 e.printStackTrace();
178 }
179
180 long end = System.currentTimeMillis();
181
182 System.err.println("DOM4J File write time :" + (end - start) + " "
183 + name);
184 }
185
186 public static void transform(Document xmlDoc, String xslFile, int kk) {
187
188 System.err.println("DOM4J start transform ");
189 int ii = 1;
190 try {
191 TransformerFactory factory = TransformerFactory.newInstance();
192 Transformer transformer = factory.newTransformer(new StreamSource (
193 xslFile));
194
195 long start = System.currentTimeMillis();
196 for (ii = 0; ii < kk; ii++) {
197 Source source = new DocumentSource(xmlDoc);
198 DocumentResult result = new DocumentResult();
199 transformer.transform(source, result);
200
201 }
203 long end = System.currentTimeMillis();
204
205 System.err
206 .println("DOM4J transform time :" + (end - start) / ii);
207 } catch (Exception e) {
208 e.printStackTrace();
209 }
210
211 }
212
213 public static void xpath(Document document, String xpathExp, int kk) {
214
215 long start = System.currentTimeMillis();
216 XPath xpath = document.createXPath(xpathExp);
217 for (int ii = 0; ii < kk; ii++) {
218 Node node = xpath.selectSingleNode(document);
219
220 if ((node != null) & (ii == 0)) {
221 String val = node.getStringValue();
222 }
224 }
225
226 long end = System.currentTimeMillis();
227 System.err.println("DOM4J xpath time :" + (end - start) / kk);
228 }
229
230 public static void xpathNodes(Document document, String xpathExp, int kk) {
231
232 long start = System.currentTimeMillis();
233 XPath xpath = document.createXPath(xpathExp);
234
235 for (int ii = 0; ii < kk; ii++) {
236
237 try {
238
239 List nodeList = xpath.selectNodes(document);
240 if ((nodeList != null) && (nodeList.size() > 0)) {
241 Node node = (Node) nodeList.get(0);
242 if ((node != null) & (ii == 0)) {
243 String val = node.getStringValue();
244 }
246 }
247 } catch (Exception e) {
248 e.printStackTrace();
249
250 }
251
252 }
253
254 long end = System.currentTimeMillis();
255
256 System.err.println("DOM4J xpath Nodes time :" + 1.000 * (end - start)
257 / kk);
258 }
259
260 }
261
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