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‎xml-2/src/main/java/com/baeldung/xml/XMLDocumentWriter.java‎

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package com.baeldung.xml;
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import org.w3c.dom.Document;
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import javax.xml.transform.*;
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import javax.xml.transform.dom.DOMSource;
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import javax.xml.transform.stream.StreamResult;
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import java.io.File;
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import java.io.FileWriter;
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import java.io.IOException;
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public class XMLDocumentWriter {
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public void write(Document document, String fileName, boolean excludeDeclaration, boolean prettyPrint) {
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try(FileWriter writer = new FileWriter(new File(fileName))) {
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TransformerFactory transformerFactory = TransformerFactory.newInstance();
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Transformer transformer = transformerFactory.newTransformer();
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if(excludeDeclaration) {
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transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
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}
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if(prettyPrint) {
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transformer.setOutputProperty(OutputKeys.INDENT, "yes");
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transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
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}
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DOMSource source = new DOMSource(document);
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StreamResult result = new StreamResult(writer);
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transformer.transform(source, result);
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} catch (IOException e) {
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throw new IllegalArgumentException(e);
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} catch (TransformerConfigurationException e) {
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throw new IllegalStateException(e);
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} catch (TransformerException e) {
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throw new IllegalArgumentException(e);
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}
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}
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}

‎xml-2/src/main/java/com/baeldung/xml/attribute/Dom4jTransformer.java‎

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package com.baeldung.xml.attribute;
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import org.dom4j.*;
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import org.dom4j.io.DocumentSource;
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import org.dom4j.io.SAXReader;
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import org.xml.sax.SAXException;
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import javax.xml.XMLConstants;
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import javax.xml.transform.OutputKeys;
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import javax.xml.transform.Transformer;
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import javax.xml.transform.TransformerException;
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import javax.xml.transform.TransformerFactory;
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import javax.xml.transform.stream.StreamResult;
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import java.io.StringWriter;
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import java.io.Writer;
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import java.util.List;
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public class Dom4jTransformer {
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private final Document input;
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public Dom4jTransformer(String resourcePath) throws DocumentException, SAXException {
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// 1- Build the doc from the XML file
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SAXReader xmlReader = new SAXReader();
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xmlReader.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
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xmlReader.setFeature("http://xml.org/sax/features/external-general-entities", false);
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xmlReader.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
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this.input = xmlReader.read(resourcePath);
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}
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public String modifyAttribute(String attribute, String oldValue, String newValue) throws TransformerException, TransformerException {
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// 2- Locate the node(s) with xpath, we can use index and iterator too.
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String expr = String.format("//*[contains(@%s, '%s')]", attribute, oldValue);
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XPath xpath = DocumentHelper.createXPath(expr);
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List<Node> nodes = xpath.selectNodes(input);
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// 3- Make the change on the selected nodes
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for (int i = 0; i < nodes.size(); i++) {
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Element element = (Element) nodes.get(i);
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element.addAttribute(attribute, newValue);
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}
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// 4- Save the result to a new XML doc
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TransformerFactory factory = TransformerFactory.newInstance();
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factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
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Transformer xformer = factory.newTransformer();
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xformer.setOutputProperty(OutputKeys.INDENT, "yes");
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Writer output = new StringWriter();
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xformer.transform(new DocumentSource(input), new StreamResult(output));
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return output.toString();
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}
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}

‎xml-2/src/main/java/com/baeldung/xml/attribute/JaxpTransformer.java‎

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package com.baeldung.xml.attribute;
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import org.w3c.dom.Document;
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import org.w3c.dom.Element;
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import org.w3c.dom.NodeList;
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import org.xml.sax.SAXException;
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import javax.xml.XMLConstants;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import javax.xml.transform.*;
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import javax.xml.transform.dom.DOMSource;
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import javax.xml.transform.stream.StreamResult;
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import javax.xml.xpath.XPath;
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import javax.xml.xpath.XPathConstants;
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import javax.xml.xpath.XPathExpressionException;
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import javax.xml.xpath.XPathFactory;
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import java.io.IOException;
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import java.io.StringWriter;
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import java.io.Writer;
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public class JaxpTransformer {
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private Document input;
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public JaxpTransformer(String resourcePath) throws SAXException, IOException, ParserConfigurationException {
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// 1- Build the doc from the XML file
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DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
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factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
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factory.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
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this.input = factory.newDocumentBuilder()
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.parse(resourcePath);
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}
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public String modifyAttribute(String attribute, String oldValue, String newValue)
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throws XPathExpressionException, TransformerFactoryConfigurationError, TransformerException, TransformerConfigurationException {
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// 2- Locate the node(s) with xpath
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XPath xpath = XPathFactory.newInstance()
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.newXPath();
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NodeList nodes = (NodeList) xpath.evaluate(String.format("//*[contains(@%s, '%s')]", attribute, oldValue), this.input, XPathConstants.NODESET);
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// 3- Make the change on the selected nodes
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for (int i = 0; i < nodes.getLength(); i++) {
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Element value = (Element) nodes.item(i);
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value.setAttribute(attribute, newValue);
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}
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// Stream api syntax
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// IntStream
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// .range(0, nodes.getLength())
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// .mapToObj(i -> (Element) nodes.item(i))
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// .forEach(value -> value.setAttribute(attribute, newValue));
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// 4- Save the result to a new XML doc
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TransformerFactory factory = TransformerFactory.newInstance();
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factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
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Transformer xformer = factory.newTransformer();
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xformer.setOutputProperty(OutputKeys.INDENT, "yes");
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Writer output = new StringWriter();
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xformer.transform(new DOMSource(this.input), new StreamResult(output));
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return output.toString();
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}
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}

‎xml-2/src/main/java/com/baeldung/xml/attribute/JooxTransformer.java‎

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package com.baeldung.xml.attribute;
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import org.joox.JOOX;
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import org.joox.Match;
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import org.w3c.dom.Document;
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import org.xml.sax.SAXException;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.transform.TransformerFactoryConfigurationError;
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import java.io.IOException;
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import static org.joox.JOOX.$;
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public class JooxTransformer {
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private final Document input;
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public JooxTransformer(String resourcePath) throws SAXException, IOException {
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// 1- Build the doc from the XML file
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DocumentBuilder builder = JOOX.builder();
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input = builder.parse(resourcePath);
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}
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public String modifyAttribute(String attribute, String oldValue, String newValue) throws TransformerFactoryConfigurationError {
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// 2- Select the document
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Match $ = $(input);
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// 3 - Find node to modify
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String expr = String.format("//*[contains(@%s, '%s')]", attribute, oldValue);
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$
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// .find("to") or with xpath
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.xpath(expr)
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.get()
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.stream()
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.forEach(e -> e.setAttribute(attribute, newValue));
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// 4- Return result as String
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return $.toString();
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}
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}

‎xml-2/src/main/java/com/baeldung/xml/attribute/jmh/AttributeBenchMark.java‎

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package com.baeldung.xml.attribute.jmh;
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import com.baeldung.xml.attribute.Dom4jTransformer;
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import com.baeldung.xml.attribute.JaxpTransformer;
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import com.baeldung.xml.attribute.JooxTransformer;
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import org.dom4j.DocumentException;
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import org.openjdk.jmh.annotations.*;
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import org.openjdk.jmh.runner.Runner;
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import org.openjdk.jmh.runner.RunnerException;
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import org.openjdk.jmh.runner.options.Options;
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import org.openjdk.jmh.runner.options.OptionsBuilder;
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import org.xml.sax.SAXException;
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import javax.xml.parsers.ParserConfigurationException;
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import javax.xml.transform.TransformerException;
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import javax.xml.xpath.XPathExpressionException;
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import java.io.IOException;
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import java.util.concurrent.TimeUnit;
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@BenchmarkMode(Mode.AverageTime)
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@OutputTimeUnit(TimeUnit.MILLISECONDS)
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@State(Scope.Benchmark)
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public class AttributeBenchMark {
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public static void main(String[] args) throws RunnerException {
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Options opt = new OptionsBuilder().include(AttributeBenchMark.class.getSimpleName())
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.forks(1)
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.build();
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new Runner(opt).run();
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}
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@Benchmark
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public String dom4jBenchmark() throws DocumentException, TransformerException, SAXException {
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String path = this.getClass()
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.getResource("/xml/attribute.xml")
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.toString();
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Dom4jTransformer transformer = new Dom4jTransformer(path);
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String attribute = "customer";
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String oldValue = "true";
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String newValue = "false";
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return transformer.modifyAttribute(attribute, oldValue, newValue);
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}
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@Benchmark
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public String jooxBenchmark() throws IOException, SAXException {
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String path = this.getClass()
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.getResource("/xml/attribute.xml")
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.toString();
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JooxTransformer transformer = new JooxTransformer(path);
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String attribute = "customer";
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String oldValue = "true";
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String newValue = "false";
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return transformer.modifyAttribute(attribute, oldValue, newValue);
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}
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@Benchmark
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public String jaxpBenchmark()
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throws TransformerException, ParserConfigurationException, SAXException, IOException, XPathExpressionException {
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String path = this.getClass()
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.getResource("/xml/attribute.xml")
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.toString();
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JaxpTransformer transformer = new JaxpTransformer(path);
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String attribute = "customer";
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String oldValue = "true";
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String newValue = "false";
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return transformer.modifyAttribute(attribute, oldValue, newValue);
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}
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}

‎xml-2/src/main/java/com/baeldung/xml/jibx/Customer.java‎

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/*
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* Customer.java 06.06.2008
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*
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* Copyright 2008 Stefan J&auml;ger
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*
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*/
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package com.baeldung.xml.jibx;
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import org.apache.commons.lang3.builder.ToStringBuilder;
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public class Customer {
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private Person person;
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private String city;
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private Phone homePhone;
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private Phone officePhone;
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public Person getPerson() {
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return person;
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}
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public void setPerson(Person person) {
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this.person = person;
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}
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public String getCity() {
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return city;
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}
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public void setCity(String city) {
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this.city = city;
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}
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public Phone getHomePhone() {
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return homePhone;
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}
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public void setHomePhone(Phone homePhone) {
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this.homePhone = homePhone;
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}
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public Phone getOfficePhone() {
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return officePhone;
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}
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public void setOfficePhone(Phone officePhone) {
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this.officePhone = officePhone;
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}
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public String toString() {
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return ToStringBuilder.reflectionToString(this);
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}
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}

‎xml-2/src/main/java/com/baeldung/xml/jibx/Identity.java‎

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package com.baeldung.xml.jibx;
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public class Identity {
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long customerId;
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public long getCustomerId() {
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return customerId;
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}
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public void setCustomerId(long customerId) {
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this.customerId = customerId;
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}
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}

‎xml-2/src/main/java/com/baeldung/xml/jibx/Person.java‎

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/*
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* Person.java 06.06.2008
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*
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* Copyright 2008 Stefan J&auml;ger
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*
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*/
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package com.baeldung.xml.jibx;
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import org.apache.commons.lang3.builder.ToStringBuilder;
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public class Person extends Identity {
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private String name;
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public String toString() {
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return ToStringBuilder.reflectionToString(this);
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}
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}

‎xml-2/src/main/java/com/baeldung/xml/jibx/Phone.java‎

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package com.baeldung.xml.jibx;
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public class Phone {
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private String number;
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public String getNumber() {
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return number;
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}
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public void setNumber(String number) {
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this.number = number;
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}
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}

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