Examples with CourseTreeVisitor org.olat.course.run.userview.CourseTreeVisitor used on opensource projects

Example 26 with CourseTreeVisitor

use of org.olat.course.run.userview.CourseTreeVisitor in project openolat by klemens.

the class ForumCourseNodeWebService method getForum.

/**
 * Retrieves metadata of the published course node
 * @response.representation.200.qname {http://www.example.com}forumVO
 * @response.representation.200.mediaType application/xml, application/json
 * @response.representation.200.doc The course node metadatas
 * @response.representation.200.example {@link org.olat.modules.fo.restapi.Examples#SAMPLE_FORUMVO}
 * @response.representation.401.doc The roles of the authenticated user are not sufficient
 * @response.representation.404.doc The course or parentNode not found
 * @param courseId The course resourceable's id
 * @param nodeId The node's id
 * @param httpRequest The HTTP request
 * @return The persisted structure element (fully populated)
 */
@GET
@Path("{nodeId}")
@Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
public Response getForum(@PathParam("courseId") Long courseId, @PathParam("nodeId") String nodeId, @Context HttpServletRequest httpRequest) {
    ICourse course = CoursesWebService.loadCourse(courseId);
    if (course == null) {
        return Response.serverError().status(Status.NOT_FOUND).build();
    } else if (!CourseWebService.isCourseAccessible(course, false, httpRequest)) {
        return Response.serverError().status(Status.UNAUTHORIZED).build();
    }
    CourseNode courseNode = course.getRunStructure().getNode(nodeId);
    if (courseNode == null || !(courseNode instanceof FOCourseNode)) {
        return Response.serverError().status(Status.NOT_FOUND).build();
    }
    UserRequest ureq = getUserRequest(httpRequest);
    CourseTreeVisitor courseVisitor = new CourseTreeVisitor(course, ureq.getUserSession().getIdentityEnvironment());
    if (courseVisitor.isAccessible(courseNode, new VisibleTreeFilter())) {
        FOCourseNode forumNode = (FOCourseNode) courseNode;
        Set<Long> subscriptions = new HashSet<Long>();
        NotificationsManager man = NotificationsManager.getInstance();
        List<String> notiTypes = Collections.singletonList("Forum");
        List<Subscriber> subs = man.getSubscribers(ureq.getIdentity(), notiTypes);
        for (Subscriber sub : subs) {
            Long forumKey = Long.parseLong(sub.getPublisher().getData());
            subscriptions.add(forumKey);
        }
        ForumVO forumVo = createForumVO(course, forumNode, subscriptions);
        return Response.ok(forumVo).build();
    } else {
        return Response.serverError().status(Status.UNAUTHORIZED).build();
    }
}