source: other-projects/tipple-android/src/org/tipple/mapDisplay/XMLToHashmapHandler.java@ 26523

package org.tipple.mapDisplay;

import java.util.ArrayList;
import java.util.HashMap;

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

public class XMLToHashmapHandler extends DefaultHandler {
    String lockon_element_;
    Boolean locked_on_;
    ArrayList<HashMap<String, String>> lockon_list_;

    HashMap<String, String> hashmap_;
    String active_element_;
    StringBuffer inner_text_;

    public XMLToHashmapHandler(String lockon_element) {
        // initial settings to parse a file
        lockon_element_ = lockon_element;
        lockon_list_ = new ArrayList<HashMap<String, String>>();
        locked_on_ = false;
    }

    public ArrayList<HashMap<String, String>> getHashmapList() {
        return lockon_list_;
    }

    @Override
    public void startElement(String uri, String localName, String qName,
            Attributes attributes) throws SAXException {
        if (localName.equalsIgnoreCase(lockon_element_)) {
            hashmap_ = new HashMap<String, String>();
            locked_on_ = true; // => covert each child element inside this to a
                                // hashmap key
        } else if (locked_on_) {
            active_element_ = localName.toLowerCase();
            inner_text_ = new StringBuffer();
        }
        // else ignore element as outside area of interest
    }

    @Override
    public void endElement(String uri, String localName, String qName)
            throws SAXException {
        if (localName.equalsIgnoreCase(lockon_element_)) {
            // push hashmap onto arraylist
            lockon_list_.add(hashmap_);
            hashmap_ = null;

            locked_on_ = false;
        } else if (localName.equalsIgnoreCase(active_element_)) {

            hashmap_.put(active_element_, inner_text_.toString());
            active_element_ = null;
            inner_text_ = null;
        }
    }

    @Override
    public void characters(char[] ch, int start, int length)
            throws SAXException {
        if ((locked_on_) && (active_element_ != null)) {
            String text = new String(ch, start, length);
            inner_text_.append(text);
        }
    }

}