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/**
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* Copyright (C) 2009-2013 Simonsoft Nordic AB
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package se.simonsoft.cms.xmlsource.transform;
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import java.io.FileInputStream;
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import java.io.InputStream;
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import java.io.StringWriter;
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import java.util.Date;
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import javax.xml.transform.Source;
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import javax.xml.transform.stream.StreamSource;
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import net.sf.saxon.s9api.Axis;
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import net.sf.saxon.s9api.Destination;
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import net.sf.saxon.s9api.DocumentBuilder;
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import net.sf.saxon.s9api.Processor;
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import net.sf.saxon.s9api.SaxonApiException;
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import net.sf.saxon.s9api.XdmItem;
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import net.sf.saxon.s9api.XdmNode;
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import net.sf.saxon.s9api.XdmNodeKind;
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import net.sf.saxon.s9api.XdmSequenceIterator;
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import net.sf.saxon.s9api.XsltCompiler;
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import net.sf.saxon.s9api.XsltExecutable;
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import net.sf.saxon.s9api.XsltTransformer;
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import org.junit.Test;
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public class SaxonTransformerDomTraversalPerformanceTest {
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private static long numTransformed = 0;
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@Test
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public void testPerformance() throws SaxonApiException {
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InputStream xsl = this.getClass().getClassLoader().getResourceAsStream(
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"se/simonsoft/cms/xmlsource/transform/identity.xsl");
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InputStream xml = this.getClass().getClassLoader().getResourceAsStream(
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"se/simonsoft/cms/xmlsource/handler/test1.xml");
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transformElements(xsl, xml);
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}
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private static void transformElements(InputStream xsl, InputStream xml) throws SaxonApiException {
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Source xsltSource = new StreamSource(xsl);
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Processor processor = new Processor(false);
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DocumentBuilder db = processor.newDocumentBuilder();
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XsltCompiler compiler = processor.newXsltCompiler();
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XsltExecutable xsltCompiled;
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xsltCompiled = compiler.compile(xsltSource);
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XsltTransformer transformer = xsltCompiled.load();
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XdmNode xdmDoc = db.build(new StreamSource(xml));
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StringWriter bulkWriter = new StringWriter();
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Destination destination = processor.newSerializer(bulkWriter);
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transformer.setDestination(destination);
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transformChildren(xdmDoc, transformer);
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System.out.println("Transformations: " + numTransformed);
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//assertTrue("number of transformations should be high", numTransformed > 10000);
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}
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private static void transformChildren(XdmNode root, XsltTransformer transformer) throws SaxonApiException {
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XdmSequenceIterator it1 = root.axisIterator(Axis.CHILD);
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while (it1.hasNext()) {
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XdmItem xdmItem = it1.next();
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transformer.setInitialContextNode((XdmNode) xdmItem);
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transformer.transform();
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numTransformed++;
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if (((XdmNode) xdmItem).getNodeKind() == XdmNodeKind.ELEMENT) {
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XdmNode elem = (XdmNode) xdmItem;
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transformChildren(elem, transformer);
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}
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}
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}
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public static void main(String[] args) {
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Date start = new Date();
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try {
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FileInputStream xsl = new FileInputStream("/Users/takesson/eclipse/simonsoft/cms-xmlsource/src/test/resources/se/simonsoft/cms/xmlsource/transform/identity.xsl");
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// Use some 500kB - 1MB XML file.
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FileInputStream xml = new FileInputStream("/Users/takesson/eclipse/simonsoft/cms-xmlsource/src/test/resources/se/simonsoft/cms/xmlsource/handler/test1.xml");
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System.out.println("Transforming...");
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transformElements(xsl, xml);
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} catch (Exception e) {
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System.out.println("Failed: " + e.getMessage());
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}
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Date end = new Date();
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System.out.println("Transformations took: " + (end.getTime() - start.getTime()) + " ms.");
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}
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}
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