franta-hg@2: package cz.frantovo.alt2xml;
franta-hg@2: 
franta-hg@2: import java.io.IOException;
franta-hg@2: import java.util.Stack;
franta-hg@2: import org.json.simple.parser.ParseException;
franta-hg@2: import org.xml.sax.ContentHandler;
franta-hg@2: import org.xml.sax.SAXException;
franta-hg@2: 
franta-hg@2: /**
franta-hg@2: ) *
franta-hg@2:  * @author fiki
franta-hg@2:  */
franta-hg@2: public class JsonSimpleContentHandler implements org.json.simple.parser.ContentHandler {
franta-hg@2: 
franta-hg@2: 	/** Sem vypisujeme XML události */
franta-hg@2: 	private ContentHandler saxVýstup;
franta-hg@2: 	/** Musíme si pamatovat polohu v XML stromu, abychom věděli, kterou značku kdy uzavřít */
franta-hg@2: 	private Stack<String> poloha = new Stack<>();
franta-hg@2: 
franta-hg@2: 	public JsonSimpleContentHandler(ContentHandler saxVýstup) {
franta-hg@2: 		this.saxVýstup = saxVýstup;
franta-hg@2: 	}
franta-hg@2: 
franta-hg@2: 	@Override
franta-hg@2: 	public void startJSON() throws ParseException, IOException {
franta-hg@2: 		try {
franta-hg@2: 			saxVýstup.startDocument();
franta-hg@2: 			saxVýstup.startElement(null, null, "json", null);
franta-hg@2: 		} catch (SAXException e) {
franta-hg@2: 			throw new IOException(e);
franta-hg@2: 		}
franta-hg@2: 	}
franta-hg@2: 
franta-hg@2: 	@Override
franta-hg@2: 	public void endJSON() throws ParseException, IOException {
franta-hg@2: 		try {
franta-hg@2: 			saxVýstup.endElement(null, null, "json");
franta-hg@2: 			saxVýstup.endDocument();
franta-hg@2: 		} catch (SAXException e) {
franta-hg@2: 			throw new IOException(e);
franta-hg@2: 		}
franta-hg@2: 	}
franta-hg@2: 
franta-hg@2: 	@Override
franta-hg@2: 	public boolean startObject() throws ParseException, IOException {
franta-hg@2: 		// System.err.println("startObject");
franta-hg@2: 		return true;
franta-hg@2: 	}
franta-hg@2: 
franta-hg@2: 	@Override
franta-hg@2: 	public boolean endObject() throws ParseException, IOException {
franta-hg@2: 		// System.err.println("endObject");
franta-hg@2: 		return true;
franta-hg@2: 	}
franta-hg@2: 
franta-hg@2: 	@Override
franta-hg@2: 	public boolean startObjectEntry(String key) throws ParseException, IOException {
franta-hg@2: 		try {
franta-hg@2: 			saxVýstup.startElement(null, null, key, null);
franta-hg@2: 			poloha.push(key);
franta-hg@2: 		} catch (SAXException e) {
franta-hg@2: 			throw new IOException(e);
franta-hg@2: 		}
franta-hg@2: 		// System.err.println("startObjectEntry: " + key);
franta-hg@2: 		return true;
franta-hg@2: 	}
franta-hg@2: 
franta-hg@2: 	@Override
franta-hg@2: 	public boolean endObjectEntry() throws ParseException, IOException {
franta-hg@2: 		try {
franta-hg@2: 			String značka = poloha.pop();
franta-hg@2: 			saxVýstup.endElement(null, null, značka);
franta-hg@2: 		} catch (SAXException e) {
franta-hg@2: 			throw new IOException(e);
franta-hg@2: 		}
franta-hg@2: 		// System.err.println("endObjectEntry");
franta-hg@2: 		return true;
franta-hg@2: 	}
franta-hg@2: 
franta-hg@2: 	@Override
franta-hg@2: 	public boolean startArray() throws ParseException, IOException {
franta-hg@2: 		// System.err.println("startArray");
franta-hg@2: 		return true;
franta-hg@2: 	}
franta-hg@2: 
franta-hg@2: 	@Override
franta-hg@2: 	public boolean endArray() throws ParseException, IOException {
franta-hg@2: 		// System.err.println("endArray");
franta-hg@2: 		return true;
franta-hg@2: 	}
franta-hg@2: 
franta-hg@2: 	@Override
franta-hg@2: 	public boolean primitive(Object value) throws ParseException, IOException {
franta-hg@2: 		try {
franta-hg@2: 			String hodnota = String.valueOf(value);
franta-hg@2: 			saxVýstup.characters(hodnota.toCharArray(), 0, hodnota.length());
franta-hg@2: 		} catch (SAXException e) {
franta-hg@2: 			throw new IOException(e);
franta-hg@2: 		}
franta-hg@2: 		// System.err.println("primitive: " + value);
franta-hg@2: 		return true;
franta-hg@2: 	}
franta-hg@2: }