package in.ajduke.ap012;

import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.List;

import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;

/**
 * An example of Gson demo
 * 
 * @author ajduke
 * 
 */
public class GsonExample {

  public static void main(String[] args) {
		Gson gson = new Gson();

		System.out.println("A generic object demo");
		// a generified object
		GenericModel<Integer> model = new GenericModel<>(12);

		// converting to json representation
		String json = gson.toJson(model);
		System.out.println("json representation :" + json);

		// converting back to object
		Type collectionType = new TypeToken<GenericModel<Integer>>() {
		}.getType();
		GenericModel<Integer> modelObj = gson.fromJson(json, collectionType);
		System.out.println("converted object representation: " + modelObj);

		System.out.println("\nA object from collection framework\n");
		// for collection framework objects
		List<String> listOfString = new ArrayList<>();
		listOfString.add("ajduke");
		listOfString.add("ajduchess");

		// conversion to json
		String jsonStr = gson.toJson(listOfString);
		System.out.println("json representation :" + jsonStr);

		Type collectionType2 = new TypeToken<List<String>>() {
		}.getType();
		List<String> listObj = gson.fromJson(jsonStr, collectionType2);
		System.out.println("converted object representation: " + listObj);

	}
}