func (context *statusContext) processUnit(unit *state.Unit, serviceCharm string) api.UnitStatus { var result api.UnitStatus result.PublicAddress, _ = unit.PublicAddress() unitPorts, _ := unit.OpenedPorts() for _, port := range unitPorts { result.OpenedPorts = append(result.OpenedPorts, port.String()) } if unit.IsPrincipal() { result.Machine, _ = unit.AssignedMachineId() } curl, _ := unit.CharmURL() if serviceCharm != "" && curl != nil && curl.String() != serviceCharm { result.Charm = curl.String() } processUnitAndAgentStatus(unit, &result) if subUnits := unit.SubordinateNames(); len(subUnits) > 0 { result.Subordinates = make(map[string]api.UnitStatus) for _, name := range subUnits { subUnit := context.unitByName(name) // subUnit may be nil if subordinate was filtered out. if subUnit != nil { result.Subordinates[name] = context.processUnit(subUnit, serviceCharm) } } } return result }