class Script(NOCScript):
    name = "Cisco.IOSXR.get_fqdn"
    implements = [IGetFQDN]
    rx_hostname = re.compile(r"^hostname\s+(?P<hostname>\S+)", re.MULTILINE)
    rx_domain_name = re.compile(r"^domain[ ]name\s+(?P<domain>\S+)",
        re.MULTILINE)

    def execute(self):
        if self.snmp and self.access_profile.snmp_ro:
            try:
                # sysName.0
                v = self.snmp.get("1.3.6.1.2.1.1.5.0", cached=True)
                if v:
                   return v
            except self.snmp.TimeOutError:
                pass
        v = self.cli(
            "show running-config | utility egrep  hostname|domain name[ ]"
        fqdn = []
        match = self.rx_hostname.search(v)
        if match:
            fqdn += [match.group("hostname")]
        match = self.rx_domain_name.search(v)
        if match:
            fqdn += [match.group("domain")]
        return ".".join(fqdn)