package com.bssys.azkserver.lucene;


import java.io.File;
import java.util.ArrayList;

import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

public class GetElementAttributesInSAXXMLParsing extends DefaultHandler {
  private ArrayList<String> al = new ArrayList<>();

  public static void main(String[] args) throws Exception {
    DefaultHandler handler = new GetElementAttributesInSAXXMLParsing();
    SAXParserFactory factory = SAXParserFactory.newInstance();
    factory.setValidating(false);
    SAXParser parser = factory.newSAXParser();
    parser.parse(new File("in.xml"), handler);
  }

  @Override
  public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
    // get the number of attributes in the list
    int length = attributes.getLength();

    // process each attribute
    for (int i = 0; i < length; i++) {
      String value = attributes.getValue(i);
      if (value != null && !value.equals("")) {
        al.add(value);
      }
    }
  }

  public String getValues() {
    StringBuilder sb = new StringBuilder();
    for (String s : al) {
      sb.append(s);
      sb.append(" ");
    }
    return sb.toString();
  }
}