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1
2 import java.io.BufferedWriter  ;
3 import java.io.File ;
4 import java.io.FileWriter ;
5 import java.io.IOException ;
6
7 import javax.xml.transform.Transformer ;
8 import javax.xml.transform.TransformerFactory ;
9 import javax.xml.transform.dom.DOMResult ;
10 import javax.xml.transform.dom.DOMSource ;
11 import javax.xml.transform.stream.StreamSource ;
12 import org.apache.xerces.dom.DocumentImpl;
13 import org.apache.xml.serialize.OutputFormat;
14 import org.apache.xml.serialize.XMLSerializer;
15 import org.apache.xpath.XPathAPI;
16
17 import org.dom4j.io.SAXReader;
18 import org.w3c.dom.Document ;
19 import org.w3c.dom.Element ;
20 import org.w3c.dom.Node ;
21 import org.w3c.dom.NodeList ;
22
23 public class PerfW3C {
24
25 public static void main(String args[]) {
26 Document doc;
27 System.err.println("W3C createDocument:");
28
29 int numrec;
30 long start = 0;
31 long end = 0;
32
33 numrec = 1000;
34 System.out.println("\n1000 Elements ---------------------------------");
35 doc = PerfW3C.createDocument(numrec, 20, 1);
36 PerfW3C.write(doc, "w3c_" + numrec + ".xml");
37 PerfW3C.parse(numrec, 1);
38 PerfW3C.transform(doc, "item.xslt", 1);
39 PerfW3C.xpath(doc, "/*/*/Attr1x1", 1);
40 PerfW3C.xpath(doc, "/*/*/Attr1x500", 1);
41 PerfW3C.xpath(doc, "/*/*/Attr1x999", 1);
42 PerfW3C.xpathNodes(doc, "/*/*/Attr1x1", 1);
43 PerfW3C.xpathNodes(doc, "/*/*/Attr1x500", 1);
44 PerfW3C.xpathNodes(doc, "/*/*/Attr1x999", 1);
45 PerfW3C.xpathNodes(doc, "/*/Item", 1);
46
47 numrec = 100;
48 System.out.println("\n100 Elements ----------------------------------");
49 doc = PerfW3C.createDocument(numrec, 20, 1);
50 PerfW3C.write(doc, "w3c_" + numrec + ".xml");
51 PerfW3C.transform(doc, "item.xslt", 10);
52 PerfW3C.parse(numrec, 10);
53 PerfW3C.xpath(doc, "/*/*/Attr0x1", 10);
54 PerfW3C.xpath(doc, "/*/*/Attr0x50", 10);
55 PerfW3C.xpath(doc, "/*/*/Attr0x99", 10);
56 PerfW3C.xpathNodes(doc, "/*/*/Attr0x0", 10);
57 PerfW3C.xpathNodes(doc, "/*/*/Attr1x50", 10);
58 PerfW3C.xpathNodes(doc, "/*/*/Attr1x99", 10);
59 PerfW3C.xpathNodes(doc, "/*/Item", 10);
60
61 numrec = 10;
62 System.out.println("\n10 Elements -----------------------------------");
63 doc = PerfW3C.createDocument(numrec, 20, 10);
64 PerfW3C.write(doc, "w3c_" + numrec + ".xml");
65 PerfW3C.parse(numrec, 50);
66 PerfW3C.transform(doc, "item.xslt", 10);
67 PerfW3C.xpath(doc, "/*/*/Attr5", 100);
68 PerfW3C.xpathNodes(doc, "/*/*/Attr1x5", 100);
69 PerfW3C.xpathNodes(doc, "/*/Item", 100);
70
71 numrec = 1;
72 System.out.println("\n1 Elements ------------------------------------");
73 doc = PerfW3C.createDocument(numrec, 20, 10);
74 PerfW3C.write(doc, "w3c_" + numrec + ".xml");
75 PerfW3C.parse(numrec, 100);
76 PerfW3C.transform(doc, "item.xslt", 10);
77 PerfW3C.xpath(doc, "/*/*/Attr1x0", 100);
78 PerfW3C.xpathNodes(doc, "/*/*/Attr1x0", 100);
79 PerfW3C.xpathNodes(doc, "/*/Item", 100);
80
81 }
82
83 public static Document createDocument(int iNumRecs, int iNumFlds, int pp) {
84
85 double start = System.currentTimeMillis();
86 Document document = null;
87 for (int kk = 0; kk < pp; kk++) {
88 document = new DocumentImpl();
89
90 Element root = document.createElement("ItemResultSet"); document.appendChild(root);
94
95 for (int ii = 0; ii < iNumRecs; ii++) {
96
97 Element Record = document.createElement("Item");
98 root.appendChild(Record);
99 for (int jj = 0; jj < iNumFlds; jj++) {
100
105 Element field = document.createElement("Attr" + jj + "x"
106 + ii);
107 field.appendChild(document.createTextNode("123456789"));
108 Record.appendChild(field);
109
110 }
111 }
112 }
113
114 double end = System.currentTimeMillis();
115
116 System.err.println("Creation time :" + (end - start) / pp);
117
118 return document;
119 }
120
121 public static void write(Document document, String name) {
122
123 long start = System.currentTimeMillis();
124
126 OutputFormat format = new OutputFormat(document); format.setIndent(2);
128 format.setLineSeparator(System.getProperty("line.separator"));
129 format.setLineWidth(80);
130 try {
131
132 FileWriter writer = new FileWriter (name);
133 BufferedWriter buf = new BufferedWriter (writer);
134 XMLSerializer FileSerial = new XMLSerializer(writer, format);
135 FileSerial.asDOMSerializer(); FileSerial.serialize(document);
137
138 } catch (IOException ioe) {
139 ioe.printStackTrace();
140
141 }
142
143 long end = System.currentTimeMillis();
144
145 System.err.println("W3C File write time :" + (end - start) + " "
146 + name);
147 }
148
149 public static Document parse(int iNumRecs, int kk) {
150
151 File file = new File ("dom4j_" + iNumRecs + ".xml");
152 double start = System.currentTimeMillis();
153 Document document = null;
154
155 for (int pp = 0; pp < kk; pp++) {
156 try {
157 SAXReader SAXrd = new SAXReader();
158 SAXrd.read(file);
159 } catch (Exception e) {
160 e.printStackTrace();
161 }
162 }
163
164 double end = System.currentTimeMillis();
165
166 System.err.println("Parsing time for :" + iNumRecs + " "
169 + (end - start) / kk);
170
171 return document;
172 }
173
174 public static void transform(Document xmlDoc, String xslFile, int kk) {
175 int ii = 1;
176 try {
177 TransformerFactory factory = TransformerFactory.newInstance();
178 Transformer transformer = factory.newTransformer(new StreamSource (
179 xslFile));
180
181 long start = System.currentTimeMillis();
182 for (ii = 0; ii < kk; ii++) {
183 DOMSource source = new DOMSource (xmlDoc);
184 DOMResult result = new DOMResult ();
185 transformer.transform(source, result);
186 }
187 long end = System.currentTimeMillis();
188
189 System.err.println("W3C transform time :" + (end - start) / ii);
190 } catch (Exception e) {
191 e.printStackTrace();
192 }
193
194 }
195
196 public static void xpath(Document document, String xpathExp, int pp) {
197
198 long start = System.currentTimeMillis();
199
200 for (int ii = 0; ii < pp; ii++) {
201
202 try {
203
204 Node node = XPathAPI.selectSingleNode(document, xpathExp);
205 if ((node != null) & (ii == 0)) {
206 String val = node.getNodeName();
207 }
209 } catch (Exception e) {
210 e.printStackTrace();
211
212 }
213
214 }
215
216 long end = System.currentTimeMillis();
217
218 System.err.println("W3C xpath time :" + 1.000 * (end - start) / pp);
219 }
220
221 public static void xpathNodes(Document document, String xpathExp, int pp) {
222
223 long start = System.currentTimeMillis();
224
225 for (int ii = 0; ii < pp; ii++) {
226
227 try {
228
229 NodeList nodeList = XPathAPI.selectNodeList(document, xpathExp);
230 if ((nodeList != null) && (nodeList.getLength() > 0)) {
231 Node node = nodeList.item(0);
232 if ((node != null) & (ii == 0)) {
233 String val = node.getNodeName();
234 }
236 }
237 } catch (Exception e) {
238 e.printStackTrace();
239
240 }
241
242 }
243
244 long end = System.currentTimeMillis();
245
246 System.err.println("W3C xpathNodes time :" + 1.000 * (end - start)
247 / pp);
248 }
249
250 }
251
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