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MyHandler.java
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package com.zetcode;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParserFactory;
import java.io.IOException;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;
public class MyHandler extends DefaultHandler {
private List<User> users = new ArrayList<>();
private User user;
private boolean bfn = false;
private boolean bln = false;
private boolean boc = false;
public List<User> parseUsers() throws ParserConfigurationException,
SAXException, IOException {
var fileName = "src/main/resources/users.xml";
var xmlDocument = Paths.get(fileName).toFile();
var factory = SAXParserFactory.newInstance();
var saxParser = factory.newSAXParser();
saxParser.parse(xmlDocument, this);
return users;
}
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes) {
if ("user".equals(qName)) {
user = new User();
}
switch (qName) {
case "firstname":
bfn = true;
break;
case "lastname":
bln = true;
break;
case "occupation":
boc = true;
break;
}
}
@Override
public void characters(char[] ch, int start, int length) {
if (bfn) {
user.setFirstName(new String(ch, start, length));
bfn = false;
}
if (bln) {
user.setLastName(new String(ch, start, length));
bln = false;
}
if (boc) {
user.setOccupation(new String(ch, start, length));
boc = false;
}
}
@Override
public void endElement(String uri, String localName, String qName) {
if ("user".equals(qName)) {
users.add(user);
}
}
}