@Override
 public ActionResponseDTO<Classpage> createClasspage(
     Classpage classpage, boolean addToUserClasspage, String assignmentId) throws Exception {
   Errors errors = validateClasspage(classpage);
   if (!errors.hasErrors()) {
     this.getCollectionRepository().save(classpage);
     if (assignmentId != null && !assignmentId.isEmpty()) {
       CollectionItem collectionItem = new CollectionItem();
       collectionItem.setItemType(ShelfType.AddedType.ADDED.getAddedType());
       collectionItem =
           this.createClasspageItem(
                   assignmentId,
                   classpage.getGooruOid(),
                   collectionItem,
                   classpage.getUser(),
                   CollectionType.CLASSPAGE.getCollectionType())
               .getModel();
       Set<CollectionItem> collectionItems = new TreeSet<CollectionItem>();
       collectionItems.add(collectionItem);
       classpage.setCollectionItems(collectionItems);
     }
     if (addToUserClasspage) {
       CollectionItem collectionItem = new CollectionItem();
       collectionItem.setItemType(ShelfType.AddedType.ADDED.getAddedType());
       this.createClasspageItem(
           classpage.getGooruOid(),
           null,
           collectionItem,
           classpage.getUser(),
           CollectionType.USER_CLASSPAGE.getCollectionType());
     }
     this.getCollectionRepository().save(classpage);
   }
   return new ActionResponseDTO<Classpage>(classpage, errors);
 }
 @Override
 public ActionResponseDTO<Classpage> createClasspage(
     Classpage newClasspage, CollectionItem newCollectionItem, String gooruOid, User user)
     throws Exception {
   Errors errors = validateClasspage(newClasspage);
   if (!errors.hasErrors()) {
     this.getCollectionRepository().save(newClasspage);
     this.getUserGroupService()
         .createGroup(
             newClasspage.getTitle(), newClasspage.getClasspageCode(), "System", user, null);
     if (gooruOid != null && !gooruOid.isEmpty() && newCollectionItem != null) {
       CollectionItem collectionItem = new CollectionItem();
       collectionItem.setItemType(ShelfType.AddedType.ADDED.getAddedType());
       collectionItem.setPlannedEndDate(newCollectionItem.getPlannedEndDate());
       collectionItem.setNarration(newCollectionItem.getNarration());
       collectionItem =
           this.createCollectionItem(
                   gooruOid,
                   newClasspage.getGooruOid(),
                   collectionItem,
                   newClasspage.getUser(),
                   CollectionType.COLLECTION.getCollectionType(),
                   false)
               .getModel();
       Set<CollectionItem> collectionItems = new TreeSet<CollectionItem>();
       collectionItems.add(collectionItem);
       newClasspage.setCollectionItems(collectionItems);
       this.getCollectionRepository().save(newClasspage);
     }
   }
   return new ActionResponseDTO<Classpage>(newClasspage, errors);
 }
 private String moveCollection(String collectionId, Collection targetCollection, User user) {
   CollectionItem sourceCollectionItem =
       getCollectionDao().getCollectionItemById(collectionId, user);
   rejectIfNull(sourceCollectionItem, GL0056, 404, COLLECTION);
   // need to put validation for collaborator
   CollectionItem collectionItem = new CollectionItem();
   if (sourceCollectionItem.getItemType() != null) {
     collectionItem.setItemType(sourceCollectionItem.getItemType());
   }
   String collectionType =
       getParentCollection(
           sourceCollectionItem.getContent().getContentId(),
           sourceCollectionItem.getContent().getContentType().getName(),
           collectionId,
           targetCollection);
   String contentType = null;
   if (collectionType.equalsIgnoreCase(LESSON)) {
     contentType = sourceCollectionItem.getContent().getContentType().getName();
   }
   createCollectionItem(collectionItem, targetCollection, sourceCollectionItem.getContent(), user);
   resetSequence(
       sourceCollectionItem.getCollection().getGooruOid(),
       sourceCollectionItem.getCollectionItemId(),
       user.getPartyUid(),
       COLLECTION);
   getCollectionDao().remove(sourceCollectionItem);
   getAsyncExecutor().deleteFromCache(V2_ORGANIZE_DATA + user.getPartyUid() + "*");
   return contentType;
 }
 @Override
 @Transactional(
     readOnly = false,
     propagation = Propagation.REQUIRED,
     rollbackFor = Exception.class)
 public ActionResponseDTO<CollectionItem> createResource(
     String collectionId, CollectionItem collectionItem, User user) {
   Resource resource = collectionItem.getResource();
   final Errors errors = validateResource(resource);
   if (!errors.hasErrors()) {
     Collection collection =
         getCollectionDao().getCollectionByType(collectionId, COLLECTION_TYPES);
     rejectIfNull(collection, GL0056, 404, COLLECTION);
     resource.setSharing(collection.getSharing());
     resource = getResourceBoService().createResource(resource, user);
     collectionItem.setItemType(ADDED);
     collectionItem = createCollectionItem(collectionItem, collection, resource, user);
     getCollectionEventLog()
         .collectionItemEventLog(
             collectionId, collectionItem, user.getPartyUid(), RESOURCE, collectionItem, ADD);
     updateCollectionMetaDataSummary(collection.getContentId(), RESOURCE, ADD);
     Map<String, Object> data =
         generateResourceMetaData(resource, collectionItem.getResource(), user);
     createContentMeta(resource, data);
   }
   return new ActionResponseDTO<CollectionItem>(collectionItem, errors);
 }
 @Override
 @Transactional(
     readOnly = false,
     propagation = Propagation.REQUIRED,
     rollbackFor = Exception.class)
 public CollectionItem addResource(String collectionId, String resourceId, User user) {
   Collection collection = getCollectionDao().getCollectionByType(collectionId, COLLECTION_TYPES);
   rejectIfNull(collection, GL0056, 404, COLLECTION);
   Resource resource = getResourceBoService().getResource(resourceId);
   rejectIfNull(resource, GL0056, 404, RESOURCE);
   reject(!resource.getContentType().getName().equalsIgnoreCase(QUESTION), GL0056, 404, RESOURCE);
   updateCollectionMetaDataSummary(collection.getContentId(), RESOURCE, ADD);
   CollectionItem collectionItem = new CollectionItem();
   getCollectionEventLog()
       .collectionItemEventLog(
           collectionId, collectionItem, user.getPartyUid(), RESOURCE, null, ADD);
   collectionItem.setItemType(ADDED);
   return createCollectionItem(collectionItem, collection, resource, user);
 }
 private Collection copyLesson(Collection lesson, Collection unit, User user) {
   Collection newLesson = new Collection();
   newLesson.setTitle(lesson.getTitle());
   newLesson.setCopiedCollectionId(lesson.getGooruOid());
   newLesson.setCollectionType(lesson.getCollectionType());
   newLesson.setDescription(lesson.getDescription());
   newLesson.setNotes(lesson.getNotes());
   newLesson.setLanguage(lesson.getLanguage());
   newLesson.setImagePath(lesson.getImagePath());
   newLesson.setGooruOid(UUID.randomUUID().toString());
   newLesson.setContentType(lesson.getContentType());
   newLesson.setLastModified(new Date(System.currentTimeMillis()));
   newLesson.setCreatedOn(new Date(System.currentTimeMillis()));
   newLesson.setIsRepresentative(0);
   newLesson.setSharing(lesson.getSharing());
   newLesson.setUser(user);
   newLesson.setOrganization(lesson.getOrganization());
   newLesson.setCreator(lesson.getCreator());
   newLesson.setUrl(lesson.getUrl());
   this.getCollectionDao().save(newLesson);
   // copy lesson items to collection
   lessonCopyItems(lesson.getGooruOid(), newLesson, user);
   copyContentTaxonomyCourse(lesson.getContentId(), newLesson);
   copyContentMetaAssoc(lesson.getContentId(), newLesson);
   copyContentClassification(lesson.getContentId(), newLesson);
   copyCollectionRepoStorage(lesson, newLesson);
   // copy content meta details
   ContentMeta contentMeta = this.getContentRepository().getContentMeta(lesson.getContentId());
   ContentMeta newContentMeta = new ContentMeta();
   if (contentMeta != null) {
     newContentMeta.setContent(newLesson);
     newContentMeta.setMetaData(contentMeta.getMetaData());
     this.getContentRepository().save(newContentMeta);
   }
   // associating the copied collection to lesson
   CollectionItem newCollectionItem = new CollectionItem();
   newCollectionItem.setItemType(ADDED);
   createCollectionItem(newCollectionItem, unit, newLesson, user);
   return newLesson;
 }
 @Override
 @Transactional(
     readOnly = false,
     propagation = Propagation.REQUIRED,
     rollbackFor = Exception.class)
 public CollectionItem addQuestion(String collectionId, String questionId, User user) {
   Collection collection = getCollectionDao().getCollectionByType(collectionId, COLLECTION_TYPES);
   rejectIfNull(collection, GL0056, 404, COLLECTION);
   AssessmentQuestion question = this.getQuestionService().getQuestion(questionId);
   rejectIfNull(question, GL0056, 404, QUESTION);
   AssessmentQuestion copyQuestion = this.getQuestionService().copyQuestion(question, user);
   CollectionItem collectionItem = new CollectionItem();
   getCollectionEventLog()
       .collectionItemEventLog(
           collectionId, collectionItem, user.getPartyUid(), QUESTION, null, ADD);
   collectionItem.setItemType(ADDED);
   collectionItem = createCollectionItem(collectionItem, collection, copyQuestion, user);
   updateCollectionMetaDataSummary(collection.getContentId(), QUESTION, ADD);
   Map<String, Object> metaData = generateQuestionMetaData(copyQuestion, copyQuestion, user);
   createContentMeta(copyQuestion, metaData);
   return collectionItem;
 }
  @Override
  public ActionResponseDTO<CollectionItem> createClasspageItem(
      String assignmentGooruOid,
      String classpageGooruOid,
      CollectionItem collectionItem,
      User user,
      String type)
      throws Exception {
    Classpage classpage = null;
    if (type != null && type.equalsIgnoreCase(CollectionType.USER_CLASSPAGE.getCollectionType())) {
      if (classpageGooruOid != null) {
        classpage = this.getClasspage(classpageGooruOid, null, null);
      } else {
        classpage =
            this.getCollectionRepository()
                .getUserShelfByClasspageGooruUid(
                    user.getGooruUId(), CollectionType.USER_CLASSPAGE.getCollectionType());
      }
      if (classpage == null) {
        classpage = new Classpage();
        classpage.setTitle(MY_CLASSPAGE);
        classpage.setCollectionType(CollectionType.USER_CLASSPAGE.getCollectionType());
        classpage.setClasspageCode(BaseUtil.base48Encode(7));
        classpage.setGooruOid(UUID.randomUUID().toString());
        ContentType contentType =
            (ContentType)
                this.getCollectionRepository().get(ContentType.class, ContentType.RESOURCE);
        classpage.setContentType(contentType);
        ResourceType resourceType =
            (ResourceType)
                this.getCollectionRepository()
                    .get(ResourceType.class, ResourceType.Type.CLASSPAGE.getType());
        classpage.setResourceType(resourceType);
        classpage.setLastModified(new Date(System.currentTimeMillis()));
        classpage.setCreatedOn(new Date(System.currentTimeMillis()));
        classpage.setSharing(Sharing.PRIVATE.getSharing());
        classpage.setUser(user);
        classpage.setOrganization(user.getPrimaryOrganization());
        classpage.setCreator(user);
        classpage.setDistinguish(Short.valueOf(ZERO));
        classpage.setRecordSource(NOT_ADDED);
        classpage.setIsFeatured(0);
        this.getCollectionRepository().save(classpage);
      }
      collectionItem.setItemType(ShelfType.AddedType.SUBSCRIBED.getAddedType());
    } else {
      classpage = this.getClasspage(classpageGooruOid, null, null);
      collectionItem.setItemType(ShelfType.AddedType.ADDED.getAddedType());
    }

    Collection collection =
        this.getCollectionRepository()
            .getCollectionByGooruOid(assignmentGooruOid, classpage.getUser().getGooruUId());
    Errors errors = validateClasspageItem(classpage, collection, collectionItem);
    if (collection != null) {
      if (!errors.hasErrors()) {
        collectionItem.setCollection(classpage);
        collectionItem.setResource(collection);
        int sequence =
            collectionItem.getCollection().getCollectionItems() != null
                ? collectionItem.getCollection().getCollectionItems().size() + 1
                : 1;
        collectionItem.setItemSequence(sequence);
        this.getCollectionRepository().save(collectionItem);
      }
    } else {
      throw new Exception("invalid assignmentId -" + assignmentGooruOid);
    }

    return new ActionResponseDTO<CollectionItem>(collectionItem, errors);
  }