Example #1
0
@Document(collectionName = "watchList")
public class WatchedThread {
  @Id private String threadId;
  private Set<ProfileWatchOptions> watchers;
  @JsonIgnore private I10nLogger log = LoggerFactory.getLogger(WatchedThread.class);

  public WatchedThread() {
    watchers = new HashSet<>();
  }

  public void addWatcher(final String profileId, final String frequency) {
    final ProfileWatchOptions toAdd = new ProfileWatchOptions(profileId, frequency);
    if (!watchers.contains(toAdd)) {
      watchers.add(toAdd);
      log.debug("logging.system.notification.userAddedWatching", profileId, threadId, frequency);
    } else {
      log.debug("logging.system.notification.userAlreadyWatching", profileId, threadId, frequency);
    }
  }

  public void removeWatcher(final String profileId, final String frequency) {
    if (watchers.remove(new ProfileWatchOptions(profileId, frequency))) {
      log.debug("logging.system.notification.userRemoveWatching", profileId, threadId, frequency);
    } else {
      log.debug("logging.system.notification.userUnableToRemove", profileId, threadId, frequency);
    }
  }

  public String getThreadId() {
    return threadId;
  }

  public void setThreadId(final String threadId) {
    this.threadId = threadId;
  }

  public Set<ProfileWatchOptions> getWatchers() {
    return watchers;
  }

  public void setWatchers(final Set<ProfileWatchOptions> watchers) {
    this.watchers = watchers;
  }

  @Override
  public String toString() {
    return "WatchedThreads{" + "threadId=" + threadId + ", watchers=" + watchers + '}';
  }
}
public class ContextPreferencesRepositoryImpl extends AbstractJongoRepository<ContextPreferences>
    implements ContextPreferencesRepository {

  private I10nLogger logger = LoggerFactory.getLogger(ContextPreferencesRepositoryImpl.class);

  @Override
  public Map<String, String> getEmailPreference(final String contextId) throws SocialException {
    try {
      String query = getQueryFor("social.system.preferences.emailPreferencesByContextId");
      final HashMap tmp =
          getCollection().findOne(query, contextId).projection("{email:1,_id:0}").as(HashMap.class);
      if (tmp == null || !tmp.containsKey("email")) {
        throw new SocialException(
            "Current context " + contextId + "is missing email configuration");
      }
      return (Map) tmp.get("email");
    } catch (MongoException ex) {
      throw new SocialException("Unable to read email preferences for " + contextId);
    }
  }

  @Override
  public Map<String, Object> saveEmailConfig(final String contextId, Map<String, Object> emailPref)
      throws SocialException {
    try {
      String fQuery = getQueryFor("social.system.preferences.emailPreferencesByContextId");
      String uQuery = getQueryFor("social.system.preferences.updateContextEmailPref");
      checkCommandResult(
          getCollection()
              .update(fQuery, contextId)
              .with(
                  uQuery,
                  emailPref.get("host"),
                  emailPref.get("encoding"),
                  emailPref.get("port"),
                  emailPref.get("auth"),
                  emailPref.get("username"),
                  emailPref.get("password"),
                  emailPref.get("tls"),
                  emailPref.get("replyTo"),
                  emailPref.get("from"),
                  emailPref.get("priority"),
                  emailPref.get("subject")));
      return emailPref;
    } catch (MongoDataException ex) {
      throw new SocialException("Unable to read email preferences for " + contextId);
    }
  }

  @Override
  public String findNotificationTemplate(final String contextId, final String notificationType)
      throws SocialException {
    try {
      String query = getQueryFor("social.system.preferences.notificationEmailByType");
      Map qResult =
          getCollection()
              .findOne(query, contextId, notificationType.toUpperCase())
              .projection("{\"templates.$\":1,_id:0}")
              .as(Map.class);
      if (qResult == null) {
        return null;
      }
      final List templates = (List) qResult.get("templates");
      if (templates == null) {
        return null;
      }
      if (templates.isEmpty()) {
        throw new SocialException(
            "No template for type"
                + notificationType
                + " has been define for context "
                + ""
                + contextId);
      } else {
        if (templates.size() > 1) {
          logger.warn(
              "logging.system.notification.multipleTemplatesForType", notificationType, contextId);
        }
        return ((Map) templates.get(0)).get("template").toString();
      }
    } catch (MongoException ex) {
      throw new SocialException(
          "Unable to get Notification Template for " + contextId + " of type" + notificationType);
    }
  }

  @Override
  public Map<String, Object> getContextPreferences(final String contextId) {
    try {
      final String byId = getQueryFor("social.system.preferences.emailPreferencesByContextId");
      return getCollection()
          .findOne(byId, contextId)
          .projection("{preferences:1,_id:0}")
          .as(HashMap.class);
    } catch (MongoException ex) {
      return new HashMap<>();
    }
  }

  @Override
  public Map<String, Object> getContextAllPreferences(final String contextId) {
    try {
      final String byId = getQueryFor("social.system.preferences.emailPreferencesByContextId");
      return getCollection().findOne(byId, contextId).as(HashMap.class);
    } catch (MongoException ex) {
      return new HashMap<>();
    }
  }

  @Override
  public boolean setContextPreferences(
      final Map<String, Object> preferences, final String contextId) {
    try {
      final String preferencesString = new ObjectMapper().writeValueAsString(preferences);
      final String byId = getQueryFor("social.system.preferences.emailPreferencesByContextId");
      getCollection().update(byId, contextId).with("{$set: " + preferencesString + "}");
      return true;
    } catch (MongoException | JsonProcessingException e) {
      logger.error("Unable to delete context Preferences", e);
      return false;
    }
  }

  @Override
  public boolean deleteContextPreferences(final String context, final List<String> preferences) {
    try {
      final String byId = getQueryFor("social.system.preferences.emailPreferencesByContextId");
      String toUnset = "";
      final Iterator<String> iter = preferences.iterator();
      while (iter.hasNext()) {
        final String key = iter.next();
        toUnset += "preferences." + key + ":1";
        if (iter.hasNext()) {
          toUnset += ",";
        }
      }
      getCollection().update(byId, context).with("{$unset:{" + toUnset + "}}");
      return true;
    } catch (MongoException e) {
      logger.error("Unable to delete context Preferences", e);
      return false;
    }
  }

  public void saveEmailPreference(final String contextId, Map<String, Object> emailPreferences)
      throws SocialException {
    try {
      String query = getQueryFor("social.system.preferences.savePreferencesByContextId");
      String findQ = getQueryFor("social.system.preferences.emailPreferencesByContextId");
      getCollection()
          .update(findQ, contextId)
          .upsert()
          .with(
              query,
              emailPreferences.get("host"),
              emailPreferences.get("encoding"),
              emailPreferences.get("port"),
              emailPreferences.get("auth"),
              emailPreferences.get("username"),
              emailPreferences.get("password"),
              emailPreferences.get("tls"),
              emailPreferences.get("replyTo"),
              emailPreferences.get("from"),
              emailPreferences.get("priority"),
              emailPreferences.get("subject"));
    } catch (MongoException ex) {
      throw new SocialException("Unable to read email preferences for " + contextId);
    }
  }

  @Override
  public void saveAllContextPreferences(
      final String contextId, final Map<String, Object> newPreferences) throws SocialException {
    try {
      checkCommandResult(getCollection().save(newPreferences));
    } catch (MongoDataException ex) {
      throw new SocialException("Unable to save email Preferences");
    }
  }

  @Override
  public boolean saveEmailTemplate(final String context, final String type, final String template)
      throws SocialException {
    try {
      String findQ = getQueryFor("social.system.preferences.byContextAndTemplateType");
      String updateQ = getQueryFor("social.system.preferences.updateContextTemplateType");
      final WriteResult r =
          getCollection().update(findQ, context, type.toUpperCase()).with(updateQ, template);
      checkCommandResult(r);
      return r.getN() == 1;
    } catch (MongoException | MongoDataException ex) {
      throw new SocialException("Unable to update Email template", ex);
    }
  }
}
Example #3
0
@SuppressWarnings("unchecked")
public class UGCServiceImpl<T extends UGC> implements UGCService {

  private I10nLogger log = LoggerFactory.getLogger(UGCServiceImpl.class);

  private UGCRepository ugcRepository;
  private UgcPipeline pipeline;
  private Pattern invalidQueryKeys;
  private UgcFactory ugcFactory;
  private VirusScanner virusScanner;
  private Reactor reactor;
  private NotificationService notificationService;
  private List<String> arraySortFields;
  private TenantConfigurationService tenantConfigurationService;

  @Override
  @HasPermission(action = UGC_CREATE, type = SocialPermission.class)
  public UGC create(
      final String contextId,
      final String ugcParentId,
      final String targetId,
      final String textContent,
      final String subject,
      final Map attrs,
      final boolean isAnonymous)
      throws SocialException {
    log.debug("logging.ugc.creatingUgc", contextId, targetId, ugcParentId, subject, attrs);
    final UGC template = new UGC(subject, textContent, targetId);

    template.setAnonymousFlag(isAnonymous);
    T newUgc = (T) ugcFactory.newInstance(template);
    newUgc.setAttributes(attrs);
    try {
      if (ObjectId.isValid(ugcParentId)) {
        setupAncestors(newUgc, ugcParentId, contextId);

      } else {
        log.debug("logging.ugc.invalidParentId");
      }
      if (StringUtils.isBlank(contextId)) {
        throw new IllegalArgumentException("context cannot be null");
      }
      pipeline.processUgc(newUgc);
      ugcRepository.save(newUgc);

      final SocialEvent<T> event =
          new SocialEvent<>(
              newUgc, SocialSecurityUtils.getCurrentProfile().getId().toString(), UGCEvent.CREATE);
      event.setAttribute("baseUrl", calculateBaseUrl());
      reactor.notify(UGCEvent.CREATE.getName(), Event.wrap(event));
      setupAutoWatch(targetId, SocialSecurityUtils.getCurrentProfile(), contextId);
      log.info("logging.ugc.created", newUgc);
      return newUgc;
    } catch (MongoDataException ex) {
      log.error("logging.ugc.errorSaving", ex);
      throw new UGCException("Unable to Save UGC");
    }
  }

  private String calculateBaseUrl() {
    HttpServletRequest request = RequestContext.getCurrent().getRequest();
    return request.getScheme()
        + "://"
        + request.getServerName()
        + ("http".equals(request.getScheme()) && request.getServerPort() == 80
                || "https".equals(request.getScheme()) && request.getServerPort() == 443
            ? ""
            : ":" + request.getServerPort())
        + request.getContextPath();
  }

  public void setNotificationServiceImpl(NotificationService notificationService) {
    this.notificationService = notificationService;
  }

  private void setupAutoWatch(
      final String targetId, final Profile currentProfile, final String context)
      throws NotificationException {
    final Map<String, Object> profileMap = currentProfile.getAttributes();
    if (profileMap.containsKey("defaultFrequency") && profileMap.containsKey("autoWatch")) {
      boolean autoWatch = currentProfile.getAttribute("autoWatch");
      if (autoWatch) {
        notificationService.subscribeUser(
            currentProfile,
            context + "/" + targetId,
            (String) currentProfile.getAttribute("defaultFrequency"));
      }
    } else {
      log.debug("Profile don't have set either defaultFrequency or autoWatch attributes");
    }
  }

  @Override
  @HasPermission(action = UGC_UPDATE, type = SocialPermission.class)
  public void setAttributes(
      @SecuredObject final String ugcId, final String contextId, final Map attributes)
      throws SocialException, UGCNotFound {
    log.debug("logging.ugc.addingAttributes", attributes, ugcId, contextId);
    try {
      T toUpdate = (T) ugcRepository.findUGC(contextId, ugcId);
      if (toUpdate == null) {
        throw new UGCNotFound("Unable to found ugc with id " + ugcId);
      }
      final Map attrs = toUpdate.getAttributes();
      attrs.putAll(attrs);
      ugcRepository.setAttributes(ugcId, contextId, attrs);
      final SocialEvent<T> event =
          new SocialEvent<T>(
              ugcId,
              attributes,
              SocialSecurityUtils.getCurrentProfile().getId().toString(),
              UGCEvent.UPDATE_ATTRIBUTES);
      event.setAttribute("baseUrl", calculateBaseUrl());
      reactor.notify(UGCEvent.UPDATE_ATTRIBUTES.getName(), Event.wrap(event));
    } catch (MongoDataException ex) {
      log.debug("logging.ugc.unableToAddAttrs", ex, attributes, ugcId, contextId);
      throw new UGCException("Unable to add Attributes to UGC", ex);
    }
  }

  @Override
  @HasPermission(action = UGC_UPDATE, type = SocialPermission.class)
  public void deleteAttribute(
      @SecuredObject final String ugcId, final String[] attributesName, final String contextId)
      throws SocialException {
    log.debug("logging.ugc.deleteAttributes", attributesName, ugcId);
    try {
      ugcRepository.deleteAttribute(ugcId, contextId, attributesName);
      final SocialEvent<T> event =
          new SocialEvent<T>(
              ugcId,
              SocialSecurityUtils.getCurrentProfile().getId().toString(),
              UGCEvent.DELETE_ATTRIBUTES);
      event.setAttribute("baseUrl", calculateBaseUrl());
      reactor.notify(UGCEvent.DELETE_ATTRIBUTES.getName(), Event.wrap(event));
    } catch (MongoDataException ex) {
      log.debug("logging.ugc.unableToDelAttrs", ex, attributesName, ugcId);
      throw new UGCException("Unable to delete attribute for ugc", ex);
    }
  }

  @Override
  @HasPermission(action = UGC_DELETE, type = SocialPermission.class)
  public boolean deleteUgc(final String ugcId, final String contextId) throws SocialException {
    log.debug("logging.ugc.deleteUgc", ugcId);
    try {
      ugcRepository.deleteUgc(ugcId, contextId);
      final SocialEvent<T> event =
          new SocialEvent<T>(
              ugcId, SocialSecurityUtils.getCurrentProfile().getId().toString(), UGCEvent.DELETE);
      event.setAttribute("baseUrl", calculateBaseUrl());

      reactor.notify(UGCEvent.DELETE.getName(), Event.wrap(event));
    } catch (MongoDataException ex) {
      log.error("logging.ugc.deleteUgcError", ex, ugcId, contextId);
      throw new UGCException("Unable to delete UGC", ex);
    }
    return false;
  }

  @Override
  @HasPermission(action = UGC_UPDATE, type = SocialPermission.class)
  public UGC update(
      @SecuredObject final String ugcId,
      final String body,
      final String subject,
      final String contextId,
      final Map attributes)
      throws SocialException, UGCNotFound {
    log.debug("logging.ugc.updateUgc", ugcId);
    try {
      final Profile currentProfile = SocialSecurityUtils.getCurrentProfile();
      boolean moderateByMail =
          Boolean.parseBoolean(
              tenantConfigurationService.getProperty(contextId, "moderateByMailEnable").toString());

      if (!ObjectId.isValid(ugcId)) {
        throw new IllegalArgumentException("Given UGC Id is not valid");
      }
      T toUpdate = (T) ugcRepository.findUGC(contextId, ugcId);
      if (toUpdate == null) {
        throw new IllegalArgumentException("UGC with Id " + ugcId + " does not exists");
      }
      if (StringUtils.isNotBlank(body)) {
        toUpdate.setBody(body);
      }
      if (StringUtils.isNotBlank(subject)) {
        toUpdate.setBody(subject);
      }
      pipeline.processUgc(toUpdate);
      if (moderateByMail
          && !SocialSecurityUtils.isProfileModeratorOrAdmin(currentProfile, contextId)) {
        if (toUpdate instanceof SocialUgc) {
          ((SocialUgc) toUpdate).setModerationStatus(ModerationStatus.UNMODERATED);
        }
      }
      ugcRepository.update(ugcId, toUpdate, false, false);
      final SocialEvent<T> event =
          new SocialEvent<>(
              toUpdate,
              SocialSecurityUtils.getCurrentProfile().getId().toString(),
              UGCEvent.UPDATE);
      event.setAttribute("baseUrl", calculateBaseUrl());
      reactor.notify(UGCEvent.UPDATE.getName(), Event.wrap(event));
      if (attributes != null && !attributes.isEmpty()) {
        toUpdate.getAttributes().putAll(attributes);
        // ToDo This should be one query, problem is with deep attributes !!
        setAttributes(toUpdate.getId().toString(), contextId, toUpdate.getAttributes());
        reactor.notify(UGCEvent.UPDATE_ATTRIBUTES, Event.wrap(attributes));
      }
      log.info("logging.ugc.updatedUgc", ugcId);
      return toUpdate;
    } catch (MongoDataException ex) {
      log.error("logging.ugc.unableToUpdateUgc", ex);
      throw new UGCException("Unable to removeWatcher UGC", ex);
    }
  }

  @Override
  @HasPermission(action = UGC_READ, type = SocialPermission.class)
  public T read(
      final String ugcId,
      final boolean includeChildren,
      final int childCount,
      final String contextId)
      throws UGCException {
    try {
      if (includeChildren) {
        return getUgcTree(ugcId, childCount, contextId);
      } else {
        return (T) ugcRepository.findUGC(contextId, ugcId);
      }
    } catch (MongoDataException e) {
      log.error("logging.ugc.unableToRead");
      throw new UGCException("Unable to find ugc by name");
    }
  }

  @Override
  @HasPermission(action = UGC_READ, type = SocialPermission.class)
  public Iterable<T> readByTargetId(final String targetId, final String contextId)
      throws UGCException {
    log.debug("logging.ugc.findingByTarget", targetId, contextId);
    try {
      return buildUgcTreeList(
          IterableUtils.toList(ugcRepository.findByTargetId(targetId, contextId)),
          Integer.MAX_VALUE);
    } catch (MongoDataException ex) {
      log.error("logging.ugc.unableRead", ex);
      throw new UGCException("Unable to ", ex);
    }
  }

  @Override
  @HasPermission(action = UGC_READ, type = SocialPermission.class)
  public Iterable<T> search(
      final String contextId,
      final String query,
      final String sort,
      final int start,
      final int limit)
      throws UGCException {
    log.debug(
        "Finding all ugc of context {} with user query {} sorted by {} skipping {} and with a limit of {}",
        contextId,
        query,
        sort,
        start,
        limit);
    isQueryValid(query);
    try {
      return ugcRepository.findByUserQuery(contextId, query, sort, start, limit);
    } catch (MongoDataException ex) {
      log.error("Unable to find User with given query" + query + " sorted by " + sort, ex);
      throw new UGCException("Unable to find Ugc with user query ", ex);
    }
  }

  @Override
  @HasPermission(action = UGC_UPDATE, type = SocialPermission.class)
  public FileInfo addAttachment(
      @SecuredObject final String ugcId,
      final String contextId,
      final InputStream attachment,
      final String fileName,
      final String contentType)
      throws FileExistsException, UGCException {
    String internalFileName =
        File.separator + contextId + File.separator + ugcId + File.separator + fileName;
    try {
      checkForVirus(attachment);
    } catch (IOException | VirusScannerException ex) {
      log.error("logging.ugc.errorScanVirus", ex);
      return null;
    }

    try {
      UGC ugc = ugcRepository.findUGC(contextId, ugcId);
      if (ugc == null) {
        throw new IllegalUgcException("UGC with given Id does not exist");
      }
      FileInfo info = ugcRepository.saveFile(attachment, internalFileName, contentType);
      try {
        info.setFileName(new URLCodec().decode(fileName));
      } catch (DecoderException e) {
        info.setFileName(fileName);
      }
      info.setAttribute("owner", ugcId);
      ugc.getAttachments().add(info);
      ugcRepository.update(ugcId, ugc);
      reactor.notify(
          UGCEvent.ADD_ATTACHMENT.getName(),
          Event.wrap(
              new SocialEvent<>(
                  ugcId, new InputStream[] {new CloseShieldInputStream(attachment)})));
      return info;
    } catch (MongoDataException e) {
      log.error("logging.ugc.unableToSaveAttachment", e, internalFileName);
      throw new UGCException("Unable to save File to UGC");
    }
  }

  private void checkForVirus(final InputStream attachment) throws IOException {
    virusScanner.scan(new CloseShieldInputStream(attachment));
  }

  @Override
  @HasPermission(action = UGC_UPDATE, type = SocialPermission.class)
  public void removeAttachment(
      @SecuredObject final String ugcId, final String contextId, final String attachmentId)
      throws UGCException, FileNotFoundException {
    try {
      UGC ugc = ugcRepository.findUGC(contextId, ugcId);
      if (ugc == null) {
        throw new IllegalUgcException("UGC with given Id does not exist");
      }
      if (!ObjectId.isValid(attachmentId)) {
        throw new IllegalArgumentException("Given Attachment id is not valid");
      }
      ObjectId attachmentOid = new ObjectId(attachmentId);
      FileInfo info = ugcRepository.getFileInfo(attachmentOid);
      if (!info.getStoreName().startsWith(File.separator + contextId)) {
        throw new IllegalSocialQueryException(
            "Given Attachment does not belong to the given context");
      }
      ugc.getAttachments().remove(info);
      ugcRepository.deleteFile(attachmentOid);
      ugcRepository.update(ugcId, ugc);
      reactor.notify(
          UGCEvent.DELETE_ATTACHMENT.getName(),
          Event.wrap(new SocialEvent<>(ugcId, attachmentId, UGCEvent.DELETE_ATTACHMENT)));
    } catch (MongoDataException e) {
      log.error("logging.ugc.attachmentToRemove", e, attachmentId);
      throw new UGCException("Unable to save File to UGC");
    }
  }

  @Override
  @HasPermission(action = UGC_UPDATE, type = SocialPermission.class)
  public FileInfo updateAttachment(
      @SecuredObject final String ugcId,
      final String contextId,
      final String attachmentId,
      final InputStream newAttachment)
      throws UGCException, FileNotFoundException {
    if (!ObjectId.isValid(ugcId)) {
      throw new IllegalArgumentException("Given Ugc Id is not valid");
    }
    if (!ObjectId.isValid(attachmentId)) {
      throw new IllegalArgumentException("Given UGC Id is not valid");
    }
    try {
      T ugc = (T) ugcRepository.findUGC(contextId, ugcId);
      if (ugc == null) {
        throw new IllegalUgcException("Given UGC Id does not exists");
      }
      FileInfo oldInfo = ugcRepository.getFileInfo(attachmentId);
      ugc.getAttachments().remove(oldInfo);
      FileInfo newInfo =
          ugcRepository.updateFile(
              new ObjectId(attachmentId),
              newAttachment,
              oldInfo.getFileName(),
              oldInfo.getContentType(),
              true);
      ugc.getAttachments().add(newInfo);
      ugcRepository.update(ugcId, ugc);
      reactor.notify(
          UGCEvent.DELETE_ATTACHMENT.getName(),
          Event.wrap(new SocialEvent<>(ugcId, attachmentId, UGCEvent.DELETE_ATTACHMENT)));
      reactor.notify(
          UGCEvent.ADD_ATTACHMENT.getName(),
          Event.wrap(
              new SocialEvent<>(
                  ugcId, new InputStream[] {new CloseShieldInputStream(newAttachment)}),
              UGCEvent.ADD_ATTACHMENT));
      return newInfo;
    } catch (MongoDataException e) {
      log.error("logging.ugc.attachmentError");
      throw new UGCException("Unable to removeWatcher Attachment");
    } catch (FileExistsException e) {
      log.error("logging.ugc.attachmentNotFound", attachmentId);
      throw new UGCException("Unable to find attachment with given id", e);
    }
  }

  @Override
  @HasPermission(action = UGC_READ, type = SocialPermission.class)
  public FileInfo readAttachment(
      final String ugcId, final String contextId, final String attachmentId)
      throws FileNotFoundException, UGCException {
    if (!ObjectId.isValid(ugcId)) {
      throw new IllegalArgumentException("Given Ugc Id is not valid");
    }
    if (!ObjectId.isValid(attachmentId)) {
      throw new IllegalArgumentException("Given attachment Id is not valid");
    }
    try {
      UGC ugc = ugcRepository.findUGC(contextId, ugcId);
      if (ugc == null) {
        throw new IllegalUgcException("UGC with given Id does not exist");
      }
      ObjectId attachmentOid = new ObjectId(attachmentId);
      FileInfo info = ugcRepository.readFile(attachmentOid);
      if (!info.getStoreName().startsWith(File.separator + contextId)) {
        throw new IllegalSocialQueryException(
            "Given Attachment does not belong to the given context");
      }
      return info;
    } catch (MongoDataException ex) {
      log.error("logging.ugc.attachmentNotFound", ex, attachmentId);
      throw new UGCException("Unable to read file", ex);
    }
  }

  @Override
  @HasPermission(action = UGC_READ, type = SocialPermission.class)
  public List<T> read(
      final String targetId,
      final String contextId,
      final int start,
      final int limit,
      final List sortOrder,
      final int upToLevel,
      final int childrenPerLevel)
      throws UGCException {
    try {
      List<T> list =
          IterableUtils.toList(
              ugcRepository.findByTargetId(
                  targetId, contextId, start, limit, sortOrder, upToLevel));
      list = sortByArrays(list, sortOrder);
      return buildUgcTreeList(list, childrenPerLevel);
    } catch (MongoDataException e) {
      log.error("logging.ugc.unableToRead");
      throw new UGCException("Unable to find ugc by target");
    }
  }

  private List<T> sortByArrays(
      final List<T> list, final List<DefaultKeyValue<String, Boolean>> sortOrder) {
    if (sortOrder == null || list == null) {
      return list;
    }
    for (final DefaultKeyValue<String, Boolean> sort : sortOrder) {
      if (arraySortFields.contains(sort.getKey())) {
        Collections.sort(
            list,
            new Comparator<T>() {
              @Override
              public int compare(final T o1, final T o2) {
                try {
                  Collection<Object> arrayToCompare1 =
                      (Collection<Object>) PropertyUtils.getProperty(o1, sort.getKey());
                  Collection<Object> arrayToCompare2 =
                      (Collection<Object>) PropertyUtils.getProperty(o2, sort.getKey());
                  int orderOfSort = sort.getValue() ? 1 : -1; // true ASC,false DESC
                  // I'm sorry for this:D
                  if (arrayToCompare1.size() < arrayToCompare2.size()) {
                    return -1 * orderOfSort;
                  } else if (arrayToCompare1.size() > arrayToCompare2.size()) {
                    return 1 * orderOfSort;
                  } else {
                    return 0;
                  }
                } catch (IllegalAccessException
                    | InvocationTargetException
                    | NoSuchMethodException
                    | ClassCastException e) {
                  log.error("Unable to sort by " + sort.getKey(), e);
                  return 0;
                }
              }
            });
      }
    }
    return list;
  }

  @Override
  @HasPermission(action = UGC_READ, type = SocialPermission.class)
  public List<T> readChildren(
      final String ugcId,
      final String targetId,
      final String contextId,
      final int start,
      final int limit,
      final List sortOrder,
      final int upToLevel,
      final int childrenPerLevel)
      throws UGCException, UGCNotFound {
    log.debug("logging.ugc.readChildren", ugcId, contextId, limit, start);
    try {
      return buildUgcTreeList(
          IterableUtils.toList(
              ugcRepository.findChildren(
                  ugcId, targetId, contextId, start, limit, sortOrder, upToLevel)),
          childrenPerLevel);
    } catch (MongoDataException ex) {
      log.error("logging.ugc.unableToRead", ex);
      throw new UGCException("Unable to ", ex);
    }
  }

  @Override
  @HasPermission(action = UGC_READ, type = SocialPermission.class)
  public UGC read(final String ugcId, final String contextId) throws UGCException {
    try {
      return ugcRepository.findUGC(contextId, ugcId);
    } catch (MongoDataException e) {
      log.error("logging.ugc.unableToReadP", e, ugcId, contextId);
      throw new UGCException("Unable to find UGC with given ID and context");
    }
  }

  @Override
  @HasPermission(action = UGC_READ, type = SocialPermission.class)
  public long count(final String threadId, final String contextId) throws UGCException {
    try {
      return ugcRepository.countByTargetId(contextId, threadId, 0);
    } catch (MongoDataException e) {
      log.error("logging.ugc.unableToCount");
      throw new UGCException("Unable to count UGC by target and context", e);
    }
  }

  @Override
  @HasPermission(action = UGC_READ, type = SocialPermission.class)
  public long countChildren(final String ugcId, final String contextId) throws UGCException {
    try {
      return ugcRepository.countChildrenOf(contextId, ugcId);
    } catch (MongoDataException ex) {
      log.error("logging.ugc.unableToCount", ex);
      throw new UGCException("Unable to count children of Ugc");
    }
  }

  private void isQueryValid(final String query) {
    if (invalidQueryKeys.matcher(query).find()) {
      throw new IllegalSocialQueryException(
          "Given Query '" + query + "' contains invalid selectors");
    }
  }

  /**
   * Given a list of results Builds A UGC Tree.
   *
   * <p>The main difference from {@link #buildUgcTree(java.util.List)} is that this method allows
   * for multiple Roots or not roots at all
   *
   * @param ugs List of the UGS to build the tree.
   * @param childrenPerLevel Levels of Children.
   * @return A List Ugcs (Roots) all roots have there children if any.
   */
  protected List<T> buildUgcTreeList(List<T> ugs, final int childrenPerLevel) {
    if (ugs.isEmpty()) {
      return null;
    }
    ArrayList<T> toReturn = new ArrayList<>();
    LinkedList<T> stack = new LinkedList<>();
    stack.addAll(ugs);
    while (!stack.isEmpty()) {
      T tmp = stack.pop();
      if (!findRelatives(ugs, tmp, childrenPerLevel)) {
        toReturn.add(tmp);
      }
    }
    return toReturn;
  }

  /**
   * Using <i>ugcToTest</i> goes though <i>ugs</i> one by one and checks if the element either it's
   * parent or one of it's children.
   *
   * @param ugs List of UGC to check against.
   * @param ugcToTest Ugc to check.
   * @param childrenPerLevel
   * @return True if a Parent or children is found. False if is a Root (not parents , or is a leaf).
   */
  protected boolean findRelatives(List<T> ugs, T ugcToTest, final int childrenPerLevel) {
    for (T ug : ugs) {
      if (ugcToTest.isMyParent(ug)) {
        if (ug.getChildren().size() < childrenPerLevel) {
          ug.getChildren().add(ugcToTest);
          return true;
        }
      }
      if (ug.isMyChild(ugcToTest)) {
        if (ugcToTest.getChildren().size() < childrenPerLevel) {
          ugcToTest.getChildren().add(ug);
          return true;
        }
      }
    }
    return false;
  }

  /**
   * Generates the ancestors ordered list for the ugc.
   *
   * @param newUgc UGC to setup ancestors.
   * @param ugcParentId Parent Id.
   * @throws MongoDataException
   * @throws UGCException
   */
  private void setupAncestors(final UGC newUgc, final String ugcParentId, final String contextId)
      throws MongoDataException, UGCException {
    UGC parent = ugcRepository.findUGC(contextId, ugcParentId);
    if (parent == null) {
      throw new UGCException("Parent UGC does not exist");
    }
    ObjectId parentId = new ObjectId(ugcParentId);
    ArrayDeque<ObjectId> ancestors = parent.getAncestors().clone();

    if (ancestors.isEmpty() || !ancestors.getLast().equals(parentId)) {
      ancestors.addLast(parentId);
      newUgc.setAncestors(ancestors);
    }
  }

  public void setReactor(Reactor reactor) {
    this.reactor = reactor;
  }

  public void setUGCRepositoryImpl(UGCRepository UGCRepositoryImpl) {
    ugcRepository = UGCRepositoryImpl;
  }

  public void setPipeline(UgcPipeline pipeline) {
    this.pipeline = pipeline;
  }

  public void setInvalidQueryKeys(final String invalidQueryKeysPattern) {
    invalidQueryKeys =
        Pattern.compile(invalidQueryKeysPattern, Pattern.CASE_INSENSITIVE | Pattern.DOTALL);
  }

  public void setArraySortFields(final String arraySortFields) {
    this.arraySortFields = Arrays.asList(arraySortFields.split(","));
  }

  public void setSocialUgcFactory(UgcFactory ugcFactory) {
    this.ugcFactory = ugcFactory;
  }

  public void setVirusScanner(final VirusScanner virusScanner) {
    this.virusScanner = virusScanner;
  }

  /**
   * Given a list of results Builds A UGC Tree.
   *
   * <p><b>The first element of the list will be taken as the root of the tree</b>
   *
   * @param ugs Lis of the UGS to build the tree. First Element will be the root.
   * @return A Ugc with its children array filled (and its children...).
   */
  protected T buildUgcTree(List<T> ugs) {
    if (ugs.isEmpty()) {
      return null;
    }
    LinkedList<T> stack = new LinkedList<>();
    stack.addAll(ugs);
    T root = stack.pop();
    root.setChildren(new ArrayDeque());
    while (!stack.isEmpty()) {
      T tmp = stack.pop();
      if (tmp.isMyParent(root)) {
        root.getChildren().add(tmp);
      } else {
        findMyParent(root.getChildren(), tmp);
      }
    }
    return root;
  }

  /**
   * Finds the parent of the orphanChild in the list of possible parents. It will also go
   * recursively to the children's children until there is nothing left. <b>Is possible that it will
   * never finds a parent (the orphanChild will be dispose silently</b>
   *
   * @param possibleParents Possible parent of orphanChild
   * @param orphanChild UGC to find it's parent.
   */
  protected void findMyParent(final Collection<T> possibleParents, final UGC orphanChild) {
    for (T child : possibleParents) {
      if (orphanChild.isMyParent(child)) {
        child.getChildren().add(orphanChild);
        return;
      }
    }
    for (T child : possibleParents) {
      findMyParent(child.getChildren(), orphanChild);
    }
  }

  private T getUgcTree(final String ugcId, final int childCount, final String contextId)
      throws MongoDataException {
    List<T> list = ugcRepository.findChildrenOf(ugcId, childCount, contextId);
    return buildUgcTree(list);
  }

  public void setTenantConfigurationService(
      final TenantConfigurationService tenantConfigurationService) {
    this.tenantConfigurationService = tenantConfigurationService;
  }
}