LearningProgressFactory.java

/*
 * This file is part of ARSnova Backend.
 * Copyright (C) 2012-2017 The ARSnova Team
 *
 * ARSnova Backend is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * ARSnova Backend is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package de.thm.arsnova.domain;

import de.thm.arsnova.dao.IDatabaseDao;
import de.thm.arsnova.events.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.context.ApplicationEventPublisherAware;
import org.springframework.stereotype.Component;

/**
 * Creates a learning progress implementation.
 *
 * This class additionally clears all learning progress caches and reports this via event system.
 */
@Component
public class LearningProgressFactory implements NovaEventVisitor, ILearningProgressFactory, ApplicationEventPublisherAware {

	@Autowired
	private IDatabaseDao databaseDao;

	private ApplicationEventPublisher publisher;

	@Override
	public LearningProgress create(String progressType, String questionVariant) {
		VariantLearningProgress learningProgress;
		if ("questions".equals(progressType)) {
			learningProgress = new QuestionBasedLearningProgress(databaseDao);
		} else {
			learningProgress = new PointBasedLearningProgress(databaseDao);
		}
		learningProgress.setQuestionVariant(questionVariant);
		return learningProgress;
	}

	@Override
	public void visit(NewInterposedQuestionEvent event) { }

	@Override
	public void visit(DeleteInterposedQuestionEvent deleteInterposedQuestionEvent) { }

	@CacheEvict(value = "learningprogress", key = "#event.Session")
	@Override
	public void visit(NewQuestionEvent event) {
		this.publisher.publishEvent(new ChangeLearningProgressEvent(this, event.getSession()));
	}

	@CacheEvict(value = "learningprogress", key = "#event.Session")
	@Override
	public void visit(UnlockQuestionEvent event) {
		this.publisher.publishEvent(new ChangeLearningProgressEvent(this, event.getSession()));
	}

	@CacheEvict(value = "learningprogress", key = "#event.Session")
	@Override
	public void visit(UnlockQuestionsEvent event) {
		this.publisher.publishEvent(new ChangeLearningProgressEvent(this, event.getSession()));
	}

	@CacheEvict(value = "learningprogress", key = "#event.Session")
	@Override
	public void visit(LockQuestionEvent event) {
		this.publisher.publishEvent(new ChangeLearningProgressEvent(this, event.getSession()));
	}

	@CacheEvict(value = "learningprogress", key = "#event.Session")
	@Override
	public void visit(LockQuestionsEvent event) {
		this.publisher.publishEvent(new ChangeLearningProgressEvent(this, event.getSession()));
	}

	@CacheEvict(value = "learningprogress", key = "#event.Session")
	@Override
	public void visit(NewAnswerEvent event) {
		this.publisher.publishEvent(new ChangeLearningProgressEvent(this, event.getSession()));
	}

	@CacheEvict(value = "learningprogress", key = "#event.Session")
	@Override
	public void visit(DeleteAnswerEvent event) {
		this.publisher.publishEvent(new ChangeLearningProgressEvent(this, event.getSession()));
	}

	@CacheEvict(value = "learningprogress", key = "#event.Session")
	@Override
	public void visit(DeleteQuestionEvent event) {
		this.publisher.publishEvent(new ChangeLearningProgressEvent(this, event.getSession()));
	}

	@CacheEvict(value = "learningprogress", key = "#event.Session")
	@Override
	public void visit(DeleteAllQuestionsEvent event) {
		this.publisher.publishEvent(new ChangeLearningProgressEvent(this, event.getSession()));
	}

	@CacheEvict(value = "learningprogress", key = "#event.Session")
	@Override
	public void visit(DeleteAllQuestionsAnswersEvent event) {
		this.publisher.publishEvent(new ChangeLearningProgressEvent(this, event.getSession()));
	}

	@CacheEvict(value = "learningprogress", key = "#event.Session")
	@Override
	public void visit(DeleteAllPreparationAnswersEvent event) {
		this.publisher.publishEvent(new ChangeLearningProgressEvent(this, event.getSession()));
	}

	@CacheEvict(value = "learningprogress", key = "#event.Session")
	@Override
	public void visit(DeleteAllLectureAnswersEvent event) {
		this.publisher.publishEvent(new ChangeLearningProgressEvent(this, event.getSession()));
	}

	@CacheEvict(value = "learningprogress", key = "#event.Session")
	@Override
	public void visit(PiRoundResetEvent event) {
		this.publisher.publishEvent(new ChangeLearningProgressEvent(this, event.getSession()));
	}

	@Override
	public void visit(NewFeedbackEvent newFeedbackEvent) { }

	@Override
	public void visit(DeleteFeedbackForSessionsEvent deleteFeedbackEvent) { }

	@Override
	public void visit(StatusSessionEvent statusSessionEvent) { }

	@Override
	public void visit(ChangeLearningProgressEvent changeLearningProgress) { }

	@Override
	public void visit(PiRoundDelayedStartEvent piRoundDelayedStartEvent) { }

	@Override
	public void visit(PiRoundEndEvent piRoundEndEvent) { }

	@Override
	public void visit(PiRoundCancelEvent piRoundCancelEvent) { }

	@Override
	public void visit(NewSessionEvent event) { }

	@Override
	public void visit(DeleteSessionEvent event) { }

	@Override
	public void setApplicationEventPublisher(ApplicationEventPublisher publisher) {
		this.publisher = publisher;
	}

	@Override
	public void visit(LockVoteEvent lockVoteEvent) { }

	@Override
	public void visit(LockVotesEvent lockVotesEvent) { }

	@Override
	public void visit(UnlockVoteEvent unlockVoteEvent) { }

	@Override
	public void visit(UnlockVotesEvent unlockVotesEvent) { }

	@Override
	public void visit(FeatureChangeEvent featureChangeEvent) { }

	@Override
	public void visit(LockFeedbackEvent lockFeedbackEvent) { }

	@Override
	public void visit(FlipFlashcardsEvent flipFlashcardsEvent) { }

}