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import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamSource;
import org.apache.xerces.dom.DocumentImpl;
import org.apache.xml.serialize.OutputFormat;
import org.apache.xml.serialize.XMLSerializer;
import org.apache.xpath.XPathAPI;
import org.dom4j.io.SAXReader;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class PerfW3C {
public static void main(String args[]) {
Document doc;
System.err.println("W3C createDocument:");
int numrec;
long start = 0;
long end = 0;
numrec = 1000;
System.out.println("\n1000 Elements ---------------------------------");
doc = PerfW3C.createDocument(numrec, 20, 1);
PerfW3C.write(doc, "w3c_" + numrec + ".xml");
PerfW3C.parse(numrec, 1);
PerfW3C.transform(doc, "item.xslt", 1);
PerfW3C.xpath(doc, "/*/*/Attr1x1", 1);
PerfW3C.xpath(doc, "/*/*/Attr1x500", 1);
PerfW3C.xpath(doc, "/*/*/Attr1x999", 1);
PerfW3C.xpathNodes(doc, "/*/*/Attr1x1", 1);
PerfW3C.xpathNodes(doc, "/*/*/Attr1x500", 1);
PerfW3C.xpathNodes(doc, "/*/*/Attr1x999", 1);
PerfW3C.xpathNodes(doc, "/*/Item", 1);
numrec = 100;
System.out.println("\n100 Elements ----------------------------------");
doc = PerfW3C.createDocument(numrec, 20, 1);
PerfW3C.write(doc, "w3c_" + numrec + ".xml");
PerfW3C.transform(doc, "item.xslt", 10);
PerfW3C.parse(numrec, 10);
PerfW3C.xpath(doc, "/*/*/Attr0x1", 10);
PerfW3C.xpath(doc, "/*/*/Attr0x50", 10);
PerfW3C.xpath(doc, "/*/*/Attr0x99", 10);
PerfW3C.xpathNodes(doc, "/*/*/Attr0x0", 10);
PerfW3C.xpathNodes(doc, "/*/*/Attr1x50", 10);
PerfW3C.xpathNodes(doc, "/*/*/Attr1x99", 10);
PerfW3C.xpathNodes(doc, "/*/Item", 10);
numrec = 10;
System.out.println("\n10 Elements -----------------------------------");
doc = PerfW3C.createDocument(numrec, 20, 10);
PerfW3C.write(doc, "w3c_" + numrec + ".xml");
PerfW3C.parse(numrec, 50);
PerfW3C.transform(doc, "item.xslt", 10);
PerfW3C.xpath(doc, "/*/*/Attr5", 100);
PerfW3C.xpathNodes(doc, "/*/*/Attr1x5", 100);
PerfW3C.xpathNodes(doc, "/*/Item", 100);
numrec = 1;
System.out.println("\n1 Elements ------------------------------------");
doc = PerfW3C.createDocument(numrec, 20, 10);
PerfW3C.write(doc, "w3c_" + numrec + ".xml");
PerfW3C.parse(numrec, 100);
PerfW3C.transform(doc, "item.xslt", 10);
PerfW3C.xpath(doc, "/*/*/Attr1x0", 100);
PerfW3C.xpathNodes(doc, "/*/*/Attr1x0", 100);
PerfW3C.xpathNodes(doc, "/*/Item", 100);
}
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 = new DocumentImpl();
Element root = document.createElement("ItemResultSet"); // Create
// Root
// Element
document.appendChild(root);
for (int ii = 0; ii < iNumRecs; ii++) {
Element Record = document.createElement("Item");
root.appendChild(Record);
for (int jj = 0; jj < iNumFlds; jj++) {
/*
* AttrImpl a =
* (AttrImpl)document.createAttribute("Attr"+jj);
* a.setNodeValue("123456789"); Record.setAttributeNode(a);
*/
Element field = document.createElement("Attr" + jj + "x"
+ ii);
field.appendChild(document.createTextNode("123456789"));
Record.appendChild(field);
}
}
}
double end = System.currentTimeMillis();
System.err.println("Creation time :" + (end - start) / pp);
return document;
}
public static void write(Document document, String name) {
long start = System.currentTimeMillis();
// lets write to a file
OutputFormat format = new OutputFormat(document); // Serialize DOM
format.setIndent(2);
format.setLineSeparator(System.getProperty("line.separator"));
format.setLineWidth(80);
try {
FileWriter writer = new FileWriter(name);
BufferedWriter buf = new BufferedWriter(writer);
XMLSerializer FileSerial = new XMLSerializer(writer, format);
FileSerial.asDOMSerializer(); // As a DOM Serializer
FileSerial.serialize(document);
} catch (IOException ioe) {
ioe.printStackTrace();
}
long end = System.currentTimeMillis();
System.err.println("W3C File write time :" + (end - start) + " "
+ name);
}
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("DOM4J createDocument:" + "Num Rec. = " + iNumRecs
// + " Num. Fld.=" + iNumFlds);
System.err.println("Parsing time for :" + iNumRecs + " "
+ (end - start) / kk);
return document;
}
public static void transform(Document xmlDoc, String xslFile, int kk) {
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++) {
DOMSource source = new DOMSource(xmlDoc);
DOMResult result = new DOMResult();
transformer.transform(source, result);
}
long end = System.currentTimeMillis();
System.err.println("W3C transform time :" + (end - start) / ii);
} catch (Exception e) {
e.printStackTrace();
}
}
public static void xpath(Document document, String xpathExp, int pp) {
long start = System.currentTimeMillis();
for (int ii = 0; ii < pp; ii++) {
try {
Node node = XPathAPI.selectSingleNode(document, xpathExp);
if ((node != null) & (ii == 0)) {
String val = node.getNodeName();
// System.out.println(val);
}
} catch (Exception e) {
e.printStackTrace();
}
}
long end = System.currentTimeMillis();
System.err.println("W3C xpath time :" + 1.000 * (end - start) / pp);
}
public static void xpathNodes(Document document, String xpathExp, int pp) {
long start = System.currentTimeMillis();
for (int ii = 0; ii < pp; ii++) {
try {
NodeList nodeList = XPathAPI.selectNodeList(document, xpathExp);
if ((nodeList != null) && (nodeList.getLength() > 0)) {
Node node = nodeList.item(0);
if ((node != null) & (ii == 0)) {
String val = node.getNodeName();
// System.out.println(val);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
long end = System.currentTimeMillis();
System.err.println("W3C xpathNodes time :" + 1.000 * (end - start)
/ pp);
}
}
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