A Content Handler to Output a Sorted List as HTML : SAX « XML « Java

A Content Handler to Output a Sorted List as HTML

import java.io.PrintWriter;
import java.util.Vector;

import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.Locator;

public class MyHtmlHandler implements ContentHandler {
  private boolean insideNameElement = false;

  private boolean insidePhoneElement = false;

  private boolean insideEmailElement = false;

  private Person person;

  private Vector personVec;

  private PrintWriter out;

  public MyHtmlHandler(PrintWriter out) {
    this.out = out;
    personVec = new Vector();

  public void setDocumentLocator(Locator locator) {

  public void startDocument() {

  public void endDocument() {
    int k1 = 1;
    while (k1 < personVec.size()) {
      int k0 = k1 - 1;
      Person p0 = (Person) personVec.elementAt(k0);
      Person p1 = (Person) personVec.elementAt(k1);
      if (p0.getName().compareTo(p1.getName()) > 0) {
        personVec.setElementAt(p0, k1);
        personVec.setElementAt(p1, k0);
        if (k1 > 1)
      } else {

    out.println("  <title>Persons</title>");

    out.println("<table border cellspacing=0 cellpadding=5>");
    out.println("  <caption align=top>");
    out.println("    A List of Names with Phone and Email");
    out.println("  </caption>");
    out.println("  <tr>");
    out.println("    <th>Name</th>");
    out.println("    <th>Phone</th>");
    out.println("    <th>Email</th>");
    out.println("  </tr>");

    for (int i = 0; i < personVec.size(); i++) {
      Person p = (Person) personVec.elementAt(i);
      out.println("  <tr>");
      out.println("    <td>" + p.getName() + "</td>");
      out.println("    <td>" + p.getPhone() + "</td>");
      out.println("    <td>" + p.getEmail() + "</td>");
      out.println("  </tr>");

  public void startPrefixMapping(String prefix, String uri) {

  public void endPrefixMapping(String prefix) {

  public void startElement(String namespaceURI, String localName,
      String qName, Attributes atts) {
    if (localName.equals("person")) {
      person = new Person();
    } else if (localName.equals("name")) {
      insideNameElement = true;
    } else if (localName.equals("phone")) {
      insidePhoneElement = true;
    } else if (localName.equals("email")) {
      insideEmailElement = true;

  public void endElement(String namespaceURI, String localName, String qName) {
    if (localName.equals("person")) {
      if (person != null)
    } else if (localName.equals("name")) {
      insideNameElement = false;
    } else if (localName.equals("phone")) {
      insidePhoneElement = false;
    } else if (localName.equals("email")) {
      insideEmailElement = false;

  public void characters(char[] ch, int start, int length) {
    String str = "";
    for (int i = start; i < start + length; i++)
      str += ch[i];
    if (insideNameElement)
    else if (insidePhoneElement)
    else if (insideEmailElement)

  public void ignorableWhitespace(char[] ch, int start, int length) {

  public void processingInstruction(String target, String data) {

  public void skippedEntity(String name) {

class Person {
  private String name = null;

  private String phone = null;

  private String email = null;

  public void setName(String value) {
    name = value;

  public void setPhone(String value) {
    phone = value;

  public void setEmail(String value) {
    email = value;

  public String getName() {
    if (name == null)
      return ("none");
    return (name);

  public String getPhone() {
    if (phone == null)
      return ("none");
    return (phone);

  public String getEmail() {
    if (email == null)
      return ("none");
    return (email);

//Example XML document
 * An XML Document Containing a Simple Contact List Start example
 * <?xml version="1.0" standalone="yes"?>
 * <folks> <person> <phone>306 555-9999 </phone> <email>joe@webserver.net
 * </email> <name>Yin, Wang </name> </person> <person> <phone>704 555-0000
 * </phone> <name>Pet, Rob </name> <email>rob@server.com </email> </person>
 * </folks>


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