From 41c79ec61d6d66184dd7dfe9a4741e9c16f82cec Mon Sep 17 00:00:00 2001
From: Daniel Gerhardt <code@dgerhardt.net>
Date: Thu, 7 Sep 2017 16:39:20 +0200
Subject: [PATCH] Add reverse migrations (to v2) for entities
---
.../java/de/thm/arsnova/config/AppConfig.java | 12 +-
.../{V2Migrator.java => FromV2Migrator.java} | 24 ++-
.../entities/migration/ToV2Migrator.java | 146 ++++++++++++++++++
3 files changed, 178 insertions(+), 4 deletions(-)
rename src/main/java/de/thm/arsnova/entities/migration/{V2Migrator.java => FromV2Migrator.java} (86%)
create mode 100644 src/main/java/de/thm/arsnova/entities/migration/ToV2Migrator.java
diff --git a/src/main/java/de/thm/arsnova/config/AppConfig.java b/src/main/java/de/thm/arsnova/config/AppConfig.java
index 7fba9014a..287c5772c 100644
--- a/src/main/java/de/thm/arsnova/config/AppConfig.java
+++ b/src/main/java/de/thm/arsnova/config/AppConfig.java
@@ -20,7 +20,8 @@ package de.thm.arsnova.config;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
-import de.thm.arsnova.entities.migration.V2Migrator;
+import de.thm.arsnova.entities.migration.FromV2Migrator;
+import de.thm.arsnova.entities.migration.ToV2Migrator;
import de.thm.arsnova.util.ImageUtils;
import de.thm.arsnova.connector.client.ConnectorClient;
import de.thm.arsnova.connector.client.ConnectorClientImpl;
@@ -287,7 +288,12 @@ public class AppConfig extends WebMvcConfigurerAdapter {
}
@Bean
- public V2Migrator v2Migrator() {
- return new V2Migrator();
+ public FromV2Migrator fromV2Migrator() {
+ return new FromV2Migrator();
+ }
+
+ @Bean
+ public ToV2Migrator toV2Migrator() {
+ return new ToV2Migrator();
}
}
diff --git a/src/main/java/de/thm/arsnova/entities/migration/V2Migrator.java b/src/main/java/de/thm/arsnova/entities/migration/FromV2Migrator.java
similarity index 86%
rename from src/main/java/de/thm/arsnova/entities/migration/V2Migrator.java
rename to src/main/java/de/thm/arsnova/entities/migration/FromV2Migrator.java
index f37fd437c..deb6e3981 100644
--- a/src/main/java/de/thm/arsnova/entities/migration/V2Migrator.java
+++ b/src/main/java/de/thm/arsnova/entities/migration/FromV2Migrator.java
@@ -1,3 +1,20 @@
+/*
+ * This file is part of ARSnova Backend.
+ * Copyright (C) 2012-2018 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.entities.migration;
import de.thm.arsnova.entities.ChoiceAnswer;
@@ -19,7 +36,12 @@ import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
-public class V2Migrator {
+/**
+ * Converts legacy entities from version 2 to current model version.
+ *
+ * @author Daniel Gerhardt
+ */
+public class FromV2Migrator {
private void copyCommonProperties(final Entity from, final Entity to) {
to.setId(from.getId());
to.setRevision(from.getRevision());
diff --git a/src/main/java/de/thm/arsnova/entities/migration/ToV2Migrator.java b/src/main/java/de/thm/arsnova/entities/migration/ToV2Migrator.java
new file mode 100644
index 000000000..1b3c4097b
--- /dev/null
+++ b/src/main/java/de/thm/arsnova/entities/migration/ToV2Migrator.java
@@ -0,0 +1,146 @@
+/*
+ * This file is part of ARSnova Backend.
+ * Copyright (C) 2012-2018 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.entities.migration;
+
+import de.thm.arsnova.entities.ChoiceAnswer;
+import de.thm.arsnova.entities.ChoiceQuestionContent;
+import de.thm.arsnova.entities.Entity;
+import de.thm.arsnova.entities.TextAnswer;
+import de.thm.arsnova.entities.UserProfile;
+import de.thm.arsnova.entities.migration.v2.Answer;
+import de.thm.arsnova.entities.migration.v2.AnswerOption;
+import de.thm.arsnova.entities.migration.v2.Comment;
+import de.thm.arsnova.entities.migration.v2.Content;
+import de.thm.arsnova.entities.migration.v2.LoggedIn;
+import de.thm.arsnova.entities.migration.v2.MotdList;
+import de.thm.arsnova.entities.migration.v2.Session;
+import de.thm.arsnova.entities.migration.v2.VisitedSession;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Converts entities from current model version to legacy version 2.
+ *
+ * @author Daniel Gerhardt
+ */
+public class ToV2Migrator {
+ private void copyCommonProperties(final Entity from, final Entity to) {
+ to.setId(from.getId());
+ to.setRevision(from.getRevision());
+ }
+
+ public LoggedIn migrateLoggedIn(final UserProfile from) {
+ final LoggedIn to = new LoggedIn();
+ copyCommonProperties(from, to);
+ to.setUser(from.getLoginId());
+ to.setTimestamp(from.getLastLogin());
+ to.setVisitedSessions(from.getSessionHistory().stream()
+ .map(entry -> new VisitedSession())
+ .collect(Collectors.toList()));
+
+ return to;
+ }
+
+ public MotdList migrateMotdList(final UserProfile from) {
+ final MotdList to = new MotdList();
+ copyCommonProperties(from, to);
+ to.setUsername(from.getLoginId());
+ to.setMotdkeys(String.join(",", from.getAcknowledgedMotds()));
+
+ return to;
+ }
+
+ public Session migrate(final de.thm.arsnova.entities.Session from, final UserProfile owner) {
+ final Session to = new Session();
+ copyCommonProperties(from, to);
+ to.setKeyword(from.getShortId());
+ to.setCreator(owner.getLoginId());
+ to.setName(from.getName());
+ to.setShortName(from.getAbbreviation());
+ to.setActive(!from.isClosed());
+
+ return to;
+ }
+
+ public Content migrate(final de.thm.arsnova.entities.Content from) {
+ final Content to = new Content();
+ copyCommonProperties(from, to);
+ to.setSessionId(from.getSessionId());
+ to.setSubject(from.getSubject());
+ to.setText(from.getBody());
+ to.setQuestionType(from.getFormat());
+ to.setQuestionVariant(from.getGroup());
+
+ if (from instanceof ChoiceQuestionContent) {
+ final ChoiceQuestionContent fromChoiceQuestionContent = (ChoiceQuestionContent) from;
+ final List<AnswerOption> toOptions = new ArrayList<>();
+ to.setPossibleAnswers(toOptions);
+ for (int i = 0; i < fromChoiceQuestionContent.getOptions().size(); i++) {
+ AnswerOption option = new AnswerOption();
+ option.setText(fromChoiceQuestionContent.getOptions().get(1).getLabel());
+ option.setValue(fromChoiceQuestionContent.getOptions().get(1).getPoints());
+ option.setCorrect(fromChoiceQuestionContent.getCorrectOptionIndexes().contains(i));
+ toOptions.add(option);
+ }
+ }
+
+ return to;
+ }
+
+ public Answer migrate(final de.thm.arsnova.entities.ChoiceAnswer from, final de.thm.arsnova.entities.ChoiceQuestionContent content, final UserProfile creator) {
+ final Answer to = new Answer();
+ copyCommonProperties(from, to);
+ to.setQuestionId(from.getContentId());
+ to.setUser(creator.getLoginId());
+
+ List<String> answers = new ArrayList<>();
+ for (int i = 0; i < content.getOptions().size(); i++) {
+ answers.add(from.getSelectedChoiceIndexes().contains(i) ? "1" : "0");
+ }
+ to.setAnswerText(answers.stream().collect(Collectors.joining()));
+
+ return to;
+ }
+
+ public Answer migrate(final de.thm.arsnova.entities.TextAnswer from, final de.thm.arsnova.entities.Content content, final UserProfile creator) {
+ final Answer to = new Answer();
+ copyCommonProperties(from, to);
+ to.setQuestionId(from.getContentId());
+ to.setUser(creator.getLoginId());
+
+ to.setAnswerSubject(from.getSubject());
+ to.setAnswerText(from.getBody());
+
+ return to;
+ }
+
+ public Comment migrate(final de.thm.arsnova.entities.Comment from, final UserProfile creator) {
+ final Comment to = new Comment();
+ copyCommonProperties(from, to);
+ to.setSessionId(from.getSessionId());
+ to.setCreator(creator.getLoginId());
+ to.setSubject(from.getSubject());
+ to.setText(from.getBody());
+ to.setTimestamp(from.getTimestamp());
+ to.setRead(from.isRead());
+
+ return to;
+ }
+}
--
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