@Transactional
 public AccessKey create(@NotNull User user, @NotNull AccessKey accessKey) {
   if (accessKey.getLabel() == null) {
     throw new IllegalParametersException(Messages.LABEL_IS_REQUIRED);
   }
   Optional<AccessKey> akOpt =
       genericDAO
           .createNamedQuery(
               AccessKey.class, "AccessKey.getByUserAndLabel", Optional.<CacheConfig>empty())
           .setParameter("userId", user.getId())
           .setParameter("label", accessKey.getLabel())
           .getResultList()
           .stream()
           .findFirst();
   if (akOpt.isPresent()) {
     logger.error("Access key with label {} already exists", accessKey.getLabel());
     throw new ActionNotAllowedException(Messages.DUPLICATE_LABEL_FOUND);
   }
   if (accessKey.getId() != null) {
     logger.error("Access key id shouldn't be present in request parameters");
     throw new IllegalParametersException(Messages.INVALID_REQUEST_PARAMETERS);
   }
   authenticationUtils.validateActions(accessKey);
   AccessKeyProcessor keyProcessor = new AccessKeyProcessor();
   String key = keyProcessor.generateKey();
   accessKey.setKey(key);
   accessKey.setUser(user);
   genericDAO.persist(accessKey);
   for (AccessKeyPermission current : accessKey.getPermissions()) {
     AccessKeyPermission permission = preparePermission(current);
     permission.setAccessKey(accessKey);
     genericDAO.persist(permission);
   }
   return genericDAO.find(AccessKey.class, accessKey.getId());
 }
 @Transactional
 public AccessKey createAccessKeyFromOAuthGrant(OAuthGrant grant, User user, Date now) {
   AccessKey newKey = new AccessKey();
   newKey.setType(AccessKeyType.OAUTH);
   if (grant.getAccessType().equals(AccessType.ONLINE)) {
     Date expirationDate = new Date(now.getTime() + 600000); // the key is valid for 10 minutes
     newKey.setExpirationDate(expirationDate);
   }
   newKey.setUser(user);
   newKey.setLabel(
       String.format(
           Messages.OAUTH_GRANT_TOKEN_LABEL,
           grant.getClient().getName(),
           System.currentTimeMillis()));
   Set<AccessKeyPermission> permissions = new HashSet<>();
   AccessKeyPermission permission = new AccessKeyPermission();
   permission.setDomainArray(grant.getClient().getDomain());
   permission.setActionsArray(StringUtils.split(grant.getScope(), ' '));
   permission.setSubnetsArray(grant.getClient().getSubnet());
   permission.setNetworkIds(grant.getNetworkIds());
   permissions.add(permission);
   newKey.setPermissions(permissions);
   create(user, newKey);
   return newKey;
 }
  @Transactional(propagation = Propagation.REQUIRED)
  public AccessKey authenticate(@NotNull User user) {
    userService.refreshUserLoginData(user);

    AccessKey accessKey = authenticationUtils.prepareAccessKey(user);

    Set<AccessKeyPermission> permissions = new HashSet<>();
    final AccessKeyPermission permission = authenticationUtils.preparePermission(user.getRole());
    permissions.add(permission);
    accessKey.setPermissions(permissions);
    genericDAO.persist(accessKey);

    permission.setAccessKey(accessKey);
    genericDAO.persist(permission);
    return accessKey;
  }
 @Transactional
 public AccessKey updateAccessKeyFromOAuthGrant(OAuthGrant grant, User user, Date now) {
   AccessKey existing = find(grant.getAccessKey().getId(), user.getId());
   deleteAccessKeyPermissions(existing);
   if (grant.getAccessType().equals(AccessType.ONLINE)) {
     Date expirationDate = new Date(now.getTime() + 600000); // the key is valid for 10 minutes
     existing.setExpirationDate(expirationDate);
   } else {
     existing.setExpirationDate(null);
   }
   existing.setLabel(
       String.format(
           Messages.OAUTH_GRANT_TOKEN_LABEL,
           grant.getClient().getName(),
           System.currentTimeMillis()));
   Set<AccessKeyPermission> permissions = new HashSet<>();
   AccessKeyPermission permission = new AccessKeyPermission();
   permission.setDomainArray(grant.getClient().getDomain());
   permission.setActionsArray(StringUtils.split(grant.getScope(), ' '));
   permission.setSubnetsArray(grant.getClient().getSubnet());
   permission.setNetworkIds(grant.getNetworkIds());
   permissions.add(permission);
   existing.setPermissions(permissions);
   AccessKeyProcessor keyProcessor = new AccessKeyProcessor();
   String key = keyProcessor.generateKey();
   existing.setKey(key);
   for (AccessKeyPermission current : permissions) {
     current.setAccessKey(existing);
     genericDAO.persist(current);
   }
   return existing;
 }
  @Transactional(propagation = Propagation.SUPPORTS)
  public boolean hasAccessToDevice(AccessKey accessKey, String deviceGuid) {
    Set<AccessKeyPermission> permissions = accessKey.getPermissions();
    Set<String> allowedDevices = new HashSet<>();
    Set<Long> allowedNetworks = new HashSet<>();

    User accessKeyUser = userService.findUserWithNetworks(accessKey.getUser().getId());
    Set<AccessKeyPermission> toRemove = new HashSet<>();

    Device device =
        genericDAO
            .createNamedQuery(Device.class, "Device.findByUUID", of(CacheConfig.refresh()))
            .setParameter("guid", deviceGuid)
            .getSingleResult();

    for (AccessKeyPermission currentPermission : permissions) {
      if (currentPermission.getDeviceGuidsAsSet() == null) {
        allowedDevices.add(null);
      } else {
        if (!currentPermission.getDeviceGuidsAsSet().contains(deviceGuid)) {
          toRemove.add(currentPermission);
        } else {
          allowedDevices.addAll(currentPermission.getDeviceGuidsAsSet());
        }
      }
      if (currentPermission.getNetworkIdsAsSet() == null) {
        allowedNetworks.add(null);
      } else {
        if (device.getNetwork() != null) {
          if (!currentPermission.getNetworkIdsAsSet().contains(device.getNetwork().getId())) {
            toRemove.add(currentPermission);
          } else {
            allowedNetworks.addAll(currentPermission.getNetworkIdsAsSet());
          }
        }
      }
    }
    permissions.removeAll(toRemove);
    boolean hasAccess;
    hasAccess =
        allowedDevices.contains(null)
            ? userService.hasAccessToDevice(accessKeyUser, device.getGuid())
            : allowedDevices.contains(device.getGuid())
                && userService.hasAccessToDevice(accessKeyUser, device.getGuid());

    hasAccess =
        hasAccess && allowedNetworks.contains(null)
            ? accessKeyUser.isAdmin() || accessKeyUser.getNetworks().contains(device.getNetwork())
            : (accessKeyUser.isAdmin() || accessKeyUser.getNetworks().contains(device.getNetwork()))
                && allowedNetworks.contains(device.getNetwork().getId());

    return hasAccess;
  }
  @Transactional
  public boolean update(@NotNull Long userId, @NotNull Long keyId, AccessKeyUpdate toUpdate) {
    AccessKey existing = find(keyId, userId);
    if (existing == null) {
      return false;
    }
    if (toUpdate == null) {
      return true;
    }

    if (toUpdate.getLabel() != null) {
      existing.setLabel(toUpdate.getLabel().orElse(null));
    }
    if (toUpdate.getExpirationDate() != null) {
      existing.setExpirationDate(toUpdate.getExpirationDate().orElse(null));
    }
    if (toUpdate.getType() != null) {
      existing.setType(toUpdate.getType().map(v -> toUpdate.getTypeEnum()).orElse(null));
    }
    if (toUpdate.getPermissions() != null) {
      if (!toUpdate.getPermissions().isPresent()) {
        logger.error("New permissions shouldn't be empty in request parameters");
        throw new IllegalParametersException(Messages.INVALID_REQUEST_PARAMETERS);
      }

      Set<AccessKeyPermission> permissionsToReplace = toUpdate.getPermissions().get();
      AccessKey toValidate = toUpdate.convertTo();
      authenticationUtils.validateActions(toValidate);
      deleteAccessKeyPermissions(existing);
      for (AccessKeyPermission current : permissionsToReplace) {
        AccessKeyPermission permission = preparePermission(current);
        permission.setAccessKey(existing);
        genericDAO.persist(permission);
      }
    }
    return true;
  }
 private AccessKeyPermission preparePermission(AccessKeyPermission current) {
   AccessKeyPermission newPermission = new AccessKeyPermission();
   if (current.getDomainsAsSet() != null) {
     newPermission.setDomains(current.getDomains());
   }
   if (current.getSubnetsAsSet() != null) {
     newPermission.setSubnets(current.getSubnets());
   }
   if (current.getActionsAsSet() != null) {
     newPermission.setActions(current.getActions());
   }
   if (current.getNetworkIdsAsSet() != null) {
     newPermission.setNetworkIds(current.getNetworkIds());
   }
   if (current.getDeviceGuidsAsSet() != null) {
     newPermission.setDeviceGuids(current.getDeviceGuids());
   }
   return newPermission;
 }