* @param status The current cluster status.
     * @return true if the state has changed, false otherwise.
     */
    public boolean isChangedClusterState(final int status) {
        return previousClusterState.getAndSet(status) != status;
    }

    /**
     * Creates a new action validator.
     *
     * @param requestManager  The request manager.
     * @param messagesCreator The messages creator.