BuildXml.java Source code

Introduction

Here is the source code for BuildXml.java

Source

/***************************************************************
 * (C) Copyright 2002 by Deitel & Associates, Inc. and         *
 * Prentice Hall. All Rights Reserved.                         *
 *                                                             *
 * DISCLAIMER: The authors and publisher of this book have     *
 * used their best efforts in preparing the book. These        *
 * efforts include the development, research, and testing of   *
 * the theories and programs to determine their effectiveness. *
 * The authors and publisher make no warranty of any kind,     *
 * expressed or implied, with regard to these programs or to   *
 * the documentation contained in these books. The authors     *
 * and publisher shall not be liable in any event for          *
 * incidental or consequential damages in connection with, or  *
 * arising out of, the furnishing, performance, or use of      *
 * these programs.                                             *
 ***************************************************************/

import java.io.FileOutputStream;
import java.io.IOException;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.TransformerFactoryConfigurationError;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import org.w3c.dom.Attr;
import org.w3c.dom.CDATASection;
import org.w3c.dom.Comment;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.ProcessingInstruction;

public class BuildXml {
    private Document document;

    public BuildXml() {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        try {
            DocumentBuilder builder = factory.newDocumentBuilder();
            document = builder.newDocument();
        } catch (ParserConfigurationException parserException) {
            parserException.printStackTrace();
        }

        Element root = document.createElement("root");
        document.appendChild(root);

        // add comment to XML document
        Comment simpleComment = document.createComment("This is a simple contact list");
        root.appendChild(simpleComment);

        // add child element
        Node contactNode = createContactNode(document);
        root.appendChild(contactNode);

        // add processing instruction
        ProcessingInstruction pi = document.createProcessingInstruction("myInstruction", "action silent");
        root.appendChild(pi);

        // add CDATA section
        CDATASection cdata = document.createCDATASection("I can add <, >, and ?");
        root.appendChild(cdata);

        // write the XML document to disk
        try {

            // create DOMSource for source XML document
            Source xmlSource = new DOMSource(document);

            // create StreamResult for transformation result
            Result result = new StreamResult(new FileOutputStream("myDocument.xml"));

            // create TransformerFactory
            TransformerFactory transformerFactory = TransformerFactory.newInstance();

            // create Transformer for transformation
            Transformer transformer = transformerFactory.newTransformer();

            transformer.setOutputProperty("indent", "yes");

            // transform and deliver content to client
            transformer.transform(xmlSource, result);
        }

        // handle exception creating TransformerFactory
        catch (TransformerFactoryConfigurationError factoryError) {
            System.err.println("Error creating " + "TransformerFactory");
            factoryError.printStackTrace();
        } catch (TransformerException transformerError) {
            System.err.println("Error transforming document");
            transformerError.printStackTrace();
        } catch (IOException ioException) {
            ioException.printStackTrace();
        }
    }

    public Node createContactNode(Document document) {

        // create FirstName and LastName elements
        Element firstName = document.createElement("FirstName");
        Element lastName = document.createElement("LastName");

        firstName.appendChild(document.createTextNode("First Name"));
        lastName.appendChild(document.createTextNode("Last Name"));

        // create contact element
        Element contact = document.createElement("contact");

        // create attribute
        Attr genderAttribute = document.createAttribute("gender");
        genderAttribute.setValue("F");

        // append attribute to contact element
        contact.setAttributeNode(genderAttribute);
        contact.appendChild(firstName);
        contact.appendChild(lastName);

        return contact;
    }

    public static void main(String args[]) {
        BuildXml buildXml = new BuildXml();
    }
}