/**
   * Tries to save the passed list of {@link VOUdaDefinition}s. Checks if the passed values are
   * valid and permitted to be accessed.
   *
   * @param defs the {@link VOUdaDefinition}s to save
   * @param caller the calling (owning) {@link Organization}
   * @throws ValidationException in case of an invalid {@link VOUdaDefinition}
   * @throws OrganizationAuthoritiesException in case the calling {@link Organization} has
   *     insufficient roles to create {@link UdaDefinition}s of the set {@link UdaTargetType}.
   * @throws NonUniqueBusinessKeyException in case a {@link UdaDefinition} with the passed id and
   *     target type already exists for the owning {@link Organization}
   * @throws OperationNotPermittedException in case it was tries to update a {@link UdaDefinition}
   *     owned by another {@link Organization}.
   * @throws ConcurrentModificationException in case the {@link UdaDefinition} to update was
   *     concurrently changed
   * @throws ObjectNotFoundException in case on of the {@link UdaDefinition}s to update was not
   *     found
   */
  public void saveUdaDefinitions(List<VOUdaDefinition> defs, Organization caller)
      throws ValidationException, OrganizationAuthoritiesException, NonUniqueBusinessKeyException,
          OperationNotPermittedException, ConcurrentModificationException, ObjectNotFoundException {

    for (VOUdaDefinition voDef : defs) {
      // convert and validate
      UdaDefinition def;
      try {
        def = UdaAssembler.toUdaDefinition(voDef);
        def.setOrganization(caller);
      } catch (ValidationException e) {
        logger.logWarn(
            Log4jLogger.SYSTEM_LOG,
            e,
            LogMessageIdentifier.WARN_INVALID_UDA_DEFINITION,
            voDef.getUdaId());
        ctx.setRollbackOnly();
        throw e;
      }
      // check if target type is allowed for organization
      UdaTargetType type = def.getTargetType();
      if (!type.canSaveDefinition(caller.getGrantedRoleTypes())) {
        String roles = rolesToString(type.getRoles());
        OrganizationAuthoritiesException e =
            new OrganizationAuthoritiesException(
                "Insufficient authorization. Required role(s) '" + roles + "'.",
                new Object[] {roles});
        logger.logWarn(
            Log4jLogger.SYSTEM_LOG | Log4jLogger.AUDIT_LOG,
            e,
            LogMessageIdentifier.WARN_ORGANIZATION_ROLE_REQUIRED,
            Long.toString(caller.getKey()),
            roles);
        ctx.setRollbackOnly();
        throw e;
      }
      if (voDef.getKey() > 0) {
        updateDefinition(voDef, caller);
      } else {
        createDefinition(def);
      }
      UdaDefinition storedUda = (UdaDefinition) ds.find(def);
      if (storedUda == null) {
        return;
      }
      storeLocalizedAttributeName(storedUda.getKey(), voDef.getName(), voDef.getLanguage());
    }
  }
  /**
   * Updates an existing {@link UdaDefinition} - if it was not found, nothing will be done. Checks
   * if the caller is the owner, performs business key uniqueness check if the id has changed and
   * validates the passed {@link VOUdaDefinition}.
   *
   * @param voDef the updated {@link VOUdaDefinition}
   * @param owner the owning {@link Organization}
   * @throws OperationNotPermittedException in case the calling {@link Organization} is not the
   *     owner
   * @throws ValidationException in case the passed {@link VOUdaDefinition} is invalid
   * @throws ConcurrentModificationException in case the {@link UdaDefinition} to update has been
   *     changed concurrently
   * @throws NonUniqueBusinessKeyException in case the change leads to a non-unique business key
   * @throws ObjectNotFoundException in case the {@link UdaDefinition} to update was not found
   */
  void updateDefinition(VOUdaDefinition voDef, Organization owner)
      throws OperationNotPermittedException, ValidationException, ConcurrentModificationException,
          NonUniqueBusinessKeyException, ObjectNotFoundException {

    UdaDefinition existing = ds.getReference(UdaDefinition.class, voDef.getKey());
    PermissionCheck.owns(existing, owner, logger, ctx);
    // target type and encryption flag must not be changed as it will cause
    // inconsistencies for all depending UDAs

    voDef.setTargetType(existing.getTargetType().name());
    voDef.setEncrypted(existing.isEncrypted());

    // verify business key uniqueness
    UdaDefinition tempForUniquenessCheck = null;
    tempForUniquenessCheck = UdaAssembler.toUdaDefinition(voDef);

    tempForUniquenessCheck.setOrganization(owner);
    tempForUniquenessCheck.setKey(existing.getKey());
    try {
      ds.validateBusinessKeyUniqueness(tempForUniquenessCheck);
      UdaAssembler.updateUdaDefinition(existing, voDef);
    } catch (NonUniqueBusinessKeyException e) {
      logger.logWarn(
          Log4jLogger.SYSTEM_LOG,
          e,
          LogMessageIdentifier.WARN_NON_UNIQUE_BUSINESS_KEY_UDA_DEFINITION);
      ctx.setRollbackOnly();
      throw e;
    }
  }