package ste.demo;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.List;

import javax.xml.stream.FactoryConfigurationError;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.events.Characters;
import javax.xml.stream.events.EndElement;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.XMLEvent;

public class Stax {

    /**
     * @param args
     * @throws XMLStreamException
     * @throws FactoryConfigurationError
     * @throws FileNotFoundException
     */
    public static void main(String[] args) throws XMLStreamException, FileNotFoundException, FactoryConfigurationError {

        boolean isMail = false;
        List<String> emails = new ArrayList<String>();

        XMLEventReader xmlEventReader = XMLInputFactory.newInstance().createXMLEventReader(new FileInputStream(new File("stagiaires_list.xml")));
        while (xmlEventReader.hasNext()) {
            XMLEvent event = xmlEventReader.nextEvent();
            if (event.isStartElement()) {
                StartElement se = event.asStartElement();
                String name = se.getName().getLocalPart();
                if(name.equals("email")){
                    isMail=true;
                }
            }
            if(event.isCharacters() && isMail){
                Characters che = event.asCharacters();
                emails.add(che.getData());
            }
            if(event.isEndElement()){
                EndElement ee = event.asEndElement();
                if(ee.getName().getLocalPart().equals("email")){
                    isMail=false;
                }
            }
        }

        for(String email : emails){
            System.out.println(email);
        }

    }

}