public DashboardDTO getDashboard()

in server/src/main/java/com/epam/indigoeln/core/service/dashboard/DashboardService.java [72:154]
62 lines of code
6 McCabe index (conditional complexity)

    public DashboardDTO getDashboard() {
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("REST request to get dashboard experiments");
        }

        val dashboardDTO = new DashboardDTO();

        // Necessary collections

        val projectCollection = mongoTemplate.getCollection(Project.COLLECTION_NAME);
        val notebookCollection = mongoTemplate.getCollection(Notebook.COLLECTION_NAME);
        val experimentCollection = mongoTemplate.getCollection(Experiment.COLLECTION_NAME);
        val componentCollection = mongoTemplate.getCollection(Component.COLLECTION_NAME);
        val userCollection = mongoTemplate.getCollection(User.COLLECTION_NAME);

        // Current user and date threshold

        val user = userService.getUserWithAuthorities();

        val zonedThreshold = ZonedDateTime.now()
                .minus(dashboardProperties.getThresholdLevel(), dashboardProperties.getThresholdUnit());
        val threshold = JSR310DateConverters.ZonedDateTimeToDateConverter.INSTANCE.convert(zonedThreshold);

        // Load all necessary entities

        val experiments = new HashMap<Object, Document>();
        experimentCollection
                .find(new Document("$or", Arrays.asList(
                        new Document("author.$id", user.getId()),
                        new Document("submittedBy.$id", user.getId()))))
                .forEach(e -> experiments.put(e.get("_id"), e));

        val notebooks = new HashMap<Object, Document>();
        notebookCollection
                .find(new Document("experiments.$id", new Document("$in", experiments.keySet())))
                .forEach(n -> notebooks.put(n.get("_id"), n));

        val projects = new HashMap<Object, Document>();
        projectCollection
                .find(new Document("notebooks.$id", new Document("$in", notebooks.keySet())))
                .forEach(p -> projects.put(p.get("_id"), p));

        val componentIds = new HashSet<Object>();
        experiments.values().forEach(e -> ((Iterable) e.get("components")).forEach(c -> componentIds.add(((DBRef) c).getId())));

        val components = new HashMap<Object, Document>();
        componentCollection
                .find(new Document()
                        .append("_id", new Document("$in", componentIds))
                        .append("$or", Arrays.asList(
                                new Document("name", "reaction"),
                                new Document("name", "reactionDetails"),
                                new Document("name", "conceptDetails"))))
                .forEach(c -> components.put(c.get("_id"), c));

        val userIds = new HashSet<Object>();
        experiments.values()
                .forEach(e -> {
                    if (e.get("author") != null) {
                        userIds.add(((DBRef) e.get("author")).getId());
                    }
                    if (e.get("submittedBy") != null) {
                        userIds.add(((DBRef) e.get("submittedBy")).getId());
                    }
                });
        components.values()
                .forEach(c -> {
                    if (c.get("content") != null && ((Document) c.get("content")).get("coAuthors") != null) {
                        ((Iterable) ((Document) c.get("content")).get("coAuthors")).forEach(userIds::add);
                    }
                });

        val users = new HashMap<Object, Document>();
        userCollection.find(new Document("_id", new Document("$in", userIds))).forEach(u -> users.put(u.get("_id"), u));

        // Fill dashboard

        dashboardDTO.setOpenAndCompletedExp(openExperiments(threshold, user, projects, notebooks, experiments, components, users));
        dashboardDTO.setWaitingSignatureExp(waitingExperiments(user, projects, notebooks, experiments, components, users));
        dashboardDTO.setSubmittedAndSigningExp(submittedExperiments(threshold, user, projects, notebooks, experiments, components, users));

        return dashboardDTO;
    }