AuthenticationSerializer.java

package net.minecraft.launcher.authentication;

import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import java.lang.reflect.Type;
import java.util.Map;
import net.minecraft.launcher.authentication.yggdrasil.YggdrasilAuthenticationService;

public class AuthenticationSerializer
  implements JsonDeserializer<AuthenticationService>, JsonSerializer<AuthenticationService>
{
  public AuthenticationService deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
    throws JsonParseException
  {
    AuthenticationService result = new YggdrasilAuthenticationService();
    if (json == null) return result;
    Map map = (Map)context.deserialize(json, Map.class);
    result.loadFromStorage(map);
    return result;
  }

  public JsonElement serialize(AuthenticationService src, Type typeOfSrc, JsonSerializationContext context)
  {
    Map map = src.saveForStorage();
    if ((map == null) || (map.isEmpty())) return null;

    return context.serialize(map);
  }
}