aswi2020horky-gitlab/demo_mh/Deserializer/src/deserialize/ToJSON.java @ 920327ea

package deserialize;

import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.HashMap;

import org.json.simple.JSONArray;
import org.json.simple.JSONObject;

import general.Constants;

public class ToJSON extends Thread {
	
	private final static byte TC_CLASSDESC = 0x72;
	private final static byte TC_ENDBLOCKDATA = 0x78;
	private final static byte SC_SERIALIZABLE = 0x02;

	HashMap<Character, String> typeCodes;
	
	private byte buffer[];
	
	public ToJSON(byte buffer[]) {
		this.buffer = buffer;
		
		typeCodes = new HashMap<Character, String>();
		typeCodes.put('B', "byte");
		typeCodes.put('C', "char");
		typeCodes.put('D', "double");
		typeCodes.put('F', "float");
		typeCodes.put('I', "integer");
		typeCodes.put('J', "long");
		typeCodes.put('S', "short");
		typeCodes.put('Z', "boolean");
		// ---
		typeCodes.put('[', "array");
		typeCodes.put('L', "object");
	}
	
	@Override
	public void run() {
		super.run();
		
		for (int i = 0; i < buffer.length; i++) {
			if (buffer[i] == TC_CLASSDESC) {
				// Class name
				int nameLength = Formatter.createInt(buffer[++i], buffer[++i]);
				String name = new String(buffer, ++i, nameLength);
				i += nameLength - 1;
				System.out.println(name);
				
				// UID
				ByteBuffer toLong = ByteBuffer.allocate(Long.BYTES);
				toLong.put(buffer, i + 1, 8);
				toLong.flip();
		        System.out.println(toLong.getLong());
		        
		        // implements ...
				i += 9;
				System.out.println(buffer[i] == SC_SERIALIZABLE);
				
				// Variables
				int vCount = Formatter.createInt(buffer[++i], buffer[++i]);
				for (int j = 0; j < vCount; j++) {
					// Type
					char vType = (char) (buffer[++i]);
					// Name
					int vNameLength = Formatter.createInt(buffer[++i], buffer[++i]);
					String vName = new String(buffer, ++i, vNameLength);
					i += vNameLength - 1;
					// toString()
					System.out.println(typeCodes.get(vType) + " " + new String(vName));
				}
				
				// TODO
				System.out.println(buffer[++i] == TC_ENDBLOCKDATA);
			}
		}
	}
	
	@SuppressWarnings("unchecked")
	private void save() {
		/*
		JSONObject countryObj = new JSONObject();
        countryObj.put("Name", "India");
        countryObj.put("Population", new Integer(1000000));
 
        JSONArray listOfStates = new JSONArray();
        listOfStates.add("Madhya Pradesh");
        listOfStates.add("Maharastra");
        listOfStates.add("Rajasthan");
 
        countryObj.put("States", listOfStates);
 
        try {
            // Writing to a file
            FileWriter fw = new FileWriter(Constants.JSON_FILE);
            BufferedWriter bw = new BufferedWriter(fw);
            System.out.println("Zapisuji JSON objekt do souboru.");
            bw.write(countryObj.toJSONString());
            bw.flush();
            bw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        */
	}
	
}