net.sf.esfinge.gamification.guardian.AuthorizationProcessor Maven / Gradle / Ivy

Go to download
package net.sf.esfinge.gamification.guardian;

import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Objects;

import org.esfinge.guardian.context.AuthorizationContext;

import net.sf.esfinge.gamification.achievement.Achievement;
import net.sf.esfinge.gamification.exception.GamificationConfigurationException;
import net.sf.esfinge.gamification.mechanics.Game;

public abstract class AuthorizationProcessor {

	public Achievement process(AuthorizationContext context, Annotation securityAnnotation) {
		
		Game game = (Game) context.getEnvironment().get("game");
		Object user = (Object) context.getResource().get("currentUser");

		if (Objects.isNull(securityAnnotation))
			throw new GamificationConfigurationException(
					"One security annotation it's necessary to validade this process");

		Class annotationType = securityAnnotation.annotationType();
		String achiev = "";

		try {
			Method achievGetter = annotationType.getMethod("achievementName");
			achiev = (String) achievGetter.invoke(securityAnnotation);
		} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException | NoSuchMethodException
				| SecurityException invokeException) {
			throw new GamificationConfigurationException(
					"Achievement name property could not be found in annotation " + annotationType.getName(),
					invokeException);
		}

		Achievement achievement = game.getAchievement(user, achiev);

		if (Objects.isNull(achievement))
			throw new GamificationConfigurationException(
					"Annotation could not be found or current user is not set correctly");

		return achievement;
	}

}