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package io.virtualan.core.util;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;

public class FragmentContentHandler extends DefaultHandler {

    private String xPath = "/";
    private XMLReader xmlReader;
    private FragmentContentHandler parent;
    private StringBuilder characters = new StringBuilder();
    private Map elementNameCount = new HashMap<>();
    private List  xPaths;

    public FragmentContentHandler(List  xPaths, XMLReader xmlReader) {
        this.xmlReader = xmlReader;
        this.xPaths = xPaths;
    }

    private FragmentContentHandler(List xPaths, String xPath, XMLReader xmlReader, FragmentContentHandler parent) {
        this(xPaths, xmlReader);
        this.xPath = xPath;
        this.parent = parent;
    }

    @Override
    public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException {
        Integer count = elementNameCount.get(qName);
        if(null == count) {
            count = 1;
        } else {
            count++;
        }
        elementNameCount.put(qName, count);
        String childXPath = xPath + '/' + qName + '[' + count + ']';

        int attsLength = atts.getLength();
        for(int x=0; x 0) {
            xPaths.add(xPath + "='" + characters.toString() + "'");
        }
        xmlReader.setContentHandler(parent);
    }

    @Override
    public void characters(char[] ch, int start, int length) throws SAXException {
        characters.append(ch, start, length);
    }

}