private function validateJsonConditionFormat(stdClass $json)
{
if (!isset($json->condition)) {
throw new Tracker_Workflow_Trigger_Exception_AddRuleJsonFormatException('condition is missing');
}
$valid_condition = new Valid_WhiteList('condition', array(Tracker_Workflow_Trigger_RulesBuilderData::CONDITION_ALL_OFF, Tracker_Workflow_Trigger_RulesBuilderData::CONDITION_AT_LEAST_ONE));
$valid_condition->required();
$valid_condition->disableFeedback();
if (!$valid_condition->validate($json->condition)) {
throw new Tracker_Workflow_Trigger_Exception_TriggerInvalidConditionException();
}
}