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import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.List;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamSource;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.Node;
import org.dom4j.XPath;
import org.dom4j.io.DOMWriter;
import org.dom4j.io.DocumentResult;
import org.dom4j.io.DocumentSource;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;
public class PerfDOM4J {
public static void main(String args[]) {
Document doc;
try {
int numrec = 1;
numrec = 10000;
System.out.println("\n10000 Elements ------------------");
doc = PerfDOM4J.createDocument(numrec, 20, 1);
PerfDOM4J.createW3CDOM(doc);
PerfDOM4J.write(doc, "dom4j_" + numrec + ".xml");
// PerfDOM4J.parse(numrec,1);
// PerfDOM4J.transform(doc,"item.xslt",1);
PerfDOM4J.xpath(doc, "/*/*/Attr1x1", 1);
PerfDOM4J.xpath(doc, "/*/*/Attr1x5000", 1);
PerfDOM4J.xpath(doc, "/*/*/Attr1x9999", 1);
PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x1", 1);
PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x5000", 1);
PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x9999", 1);
PerfDOM4J.xpathNodes(doc, "/*/Item", 3);
numrec = 1000;
System.out.println("\n1000 Elements -------------------");
doc = PerfDOM4J.createDocument(numrec, 20, 1);
PerfDOM4J.createW3CDOM(doc);
PerfDOM4J.write(doc, "dom4j_" + numrec + ".xml");
PerfDOM4J.parse(numrec, 3);
PerfDOM4J.transform(doc, "item.xslt", 3);
PerfDOM4J.xpath(doc, "/*/*/Attr1x1", 3);
PerfDOM4J.xpath(doc, "/*/*/Attr1x500", 3);
PerfDOM4J.xpath(doc, "/*/*/Attr1x999", 3);
PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x1", 3);
PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x500", 3);
PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x999", 3);
PerfDOM4J.xpathNodes(doc, "/*/Item", 10);
numrec = 100;
System.out.println("\n100 Elements --------------------");
doc = PerfDOM4J.createDocument(numrec, 20, 10);
PerfDOM4J.createW3CDOM(doc);
PerfDOM4J.write(doc, "dom4j_" + numrec + ".xml");
PerfDOM4J.parse(numrec, 10);
PerfDOM4J.transform(doc, "item.xslt", 10);
PerfDOM4J.xpath(doc, "/*/*/Attr1x1", 10);
PerfDOM4J.xpath(doc, "/*/*/Attr1x50", 10);
PerfDOM4J.xpath(doc, "/*/*/Attr1x99", 10);
PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x1", 10);
PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x50", 10);
PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x99", 10);
PerfDOM4J.xpathNodes(doc, "/*/Item", 100);
numrec = 10;
System.out.println("\n10 Elements ---------------------");
doc = PerfDOM4J.createDocument(numrec, 20, 100);
PerfDOM4J.createW3CDOM(doc);
PerfDOM4J.write(doc, "dom4j_" + numrec + ".xml");
PerfDOM4J.parse(numrec, 100);
PerfDOM4J.transform(doc, "item.xslt", 10);
PerfDOM4J.xpath(doc, "/*/*/Attr1x5", 1000);
PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x1", 1000);
PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x5", 1000);
PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x9", 1000);
PerfDOM4J.xpathNodes(doc, "/*/Item", 1000);
numrec = 1;
System.out.println("\n1 Element -----------------------");
doc = PerfDOM4J.createDocument(numrec, 20, 100);
PerfDOM4J.createW3CDOM(doc);
PerfDOM4J.write(doc, "dom4j_" + numrec + ".xml");
PerfDOM4J.parse(numrec, 100);
PerfDOM4J.transform(doc, "item.xslt", 10);
PerfDOM4J.xpath(doc, "/*/*/Attr1x1", 1000);
PerfDOM4J.xpathNodes(doc, "/*/*/Attr1x1", 1000);
PerfDOM4J.xpathNodes(doc, "/*/Item", 1000);
} catch (IOException ie) {
ie.printStackTrace();
}
}
public static Document createDocument(int iNumRecs, int iNumFlds, int pp) {
double start = System.currentTimeMillis();
Document document = null;
for (int kk = 0; kk < pp; kk++) {
document = DocumentHelper.createDocument();
Element root = document.addElement("ItemResultSet");
for (int ii = 0; ii < iNumRecs; ii++) {
Element Record = root.addElement("Item");
for (int jj = 0; jj < iNumFlds; jj++) {
Record.addElement("Attr" + jj + "x" + ii).addText(
"123456789");
}
}
}
double end = System.currentTimeMillis();
System.err.println("Creation time : " + (end - start) / pp);
return document;
}
public static Document parse(int iNumRecs, int kk) {
File file = new File("dom4j_" + iNumRecs + ".xml");
double start = System.currentTimeMillis();
Document document = null;
for (int pp = 0; pp < kk; pp++) {
try {
SAXReader SAXrd = new SAXReader();
SAXrd.read(file);
} catch (Exception e) {
e.printStackTrace();
}
}
double end = System.currentTimeMillis();
System.err.println("Parsing time for :" + 1.000 * (end - start) / kk);
return document;
}
public static void createW3CDOM(Document doc) {
long start = System.currentTimeMillis();
try {
DOMWriter dw = new DOMWriter();
dw.write(doc);
} catch (Exception de) {
}
long end = System.currentTimeMillis();
System.err.println("W3C Creation time for :" + (end - start));
}
public static void write(Document document, String name) throws IOException {
long start = System.currentTimeMillis();
// lets write to a file
try {
OutputFormat format = OutputFormat.createPrettyPrint();
XMLWriter writer = new XMLWriter(new FileWriter(name), format);
writer.write(document);
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
long end = System.currentTimeMillis();
System.err.println("DOM4J File write time :" + (end - start) + " "
+ name);
}
public static void transform(Document xmlDoc, String xslFile, int kk) {
System.err.println("DOM4J start transform ");
int ii = 1;
try {
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer(new StreamSource(
xslFile));
long start = System.currentTimeMillis();
for (ii = 0; ii < kk; ii++) {
Source source = new DocumentSource(xmlDoc);
DocumentResult result = new DocumentResult();
transformer.transform(source, result);
// output the transformed document
}
long end = System.currentTimeMillis();
System.err
.println("DOM4J transform time :" + (end - start) / ii);
} catch (Exception e) {
e.printStackTrace();
}
}
public static void xpath(Document document, String xpathExp, int kk) {
long start = System.currentTimeMillis();
XPath xpath = document.createXPath(xpathExp);
for (int ii = 0; ii < kk; ii++) {
Node node = xpath.selectSingleNode(document);
if ((node != null) & (ii == 0)) {
String val = node.getStringValue();
// System.out.println(val);
}
}
long end = System.currentTimeMillis();
System.err.println("DOM4J xpath time :" + (end - start) / kk);
}
public static void xpathNodes(Document document, String xpathExp, int kk) {
long start = System.currentTimeMillis();
XPath xpath = document.createXPath(xpathExp);
for (int ii = 0; ii < kk; ii++) {
try {
List nodeList = xpath.selectNodes(document);
if ((nodeList != null) && (nodeList.size() > 0)) {
Node node = (Node) nodeList.get(0);
if ((node != null) & (ii == 0)) {
String val = node.getStringValue();
// System.out.println(val);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
long end = System.currentTimeMillis();
System.err.println("DOM4J xpath Nodes time :" + 1.000 * (end - start)
/ kk);
}
}
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