class OpenSSHHostnameConfigurator implements HostnameConfigurator {

    @Override
    public int getPort(final String alias) {
        if(StringUtils.isBlank(alias)) {
            return -1;
        }
        return configuration.lookup(alias).getPort();
    }

    public  OpenSSHHostnameConfigurator();
    public  OpenSSHHostnameConfigurator(final OpenSshConfig configuration);

}