principalNetworkDomain.go

package nucleus

import (
	"context"
	"github.com/google/uuid"
)

// PrincipalNetworkDomain provides an
// interface for PND implementations
type PrincipalNetworkDomain interface {
	Destroy() error
	AddSbi() error
	RemoveSbi() error
	AddDevice(*Device) error
	RemoveDevice(uuid.UUID) error
	Request(uuid.UUID, string) error
	RequestAll(string) error
}

type pndImplementation struct {
	name    string
	sbi     map[string]SouthboundInterface
	devices map[uuid.UUID]*Device
}

//NewPND creates a Principle Network Domain
func NewPND(name string, sbi SouthboundInterface) PrincipalNetworkDomain {
	sbic := make(map[string]SouthboundInterface)
	sbic["default"] = sbi
	devices := make(map[uuid.UUID]*Device)
	return &pndImplementation{
		name:    name,
		sbi:     sbic,
		devices: devices,
	}
}

// Interface satisfaction
func (pnd *pndImplementation) Destroy() error {
	return destroy()
}

func (pnd *pndImplementation) AddSbi() error {
	return addSbi()
}

func (pnd *pndImplementation) RemoveSbi() error {
	return removeSbi()
}

func (pnd *pndImplementation) AddDevice(device *Device) error {
	return pnd.addDevice(device)
}

func (pnd *pndImplementation) RemoveDevice(uuid uuid.UUID) error {
	return pnd.removeDevice(uuid)
}

// Actual implementation, bind to struct if
// neccessary
func destroy() error {
	return nil
}

func addSbi() error {
	return nil
}

func removeSbi() error {
	return nil
}

func (pnd *pndImplementation) addDevice(device *Device) error {
	pnd.devices[device.Config.Uuid] = device
	return nil
}

func (pnd *pndImplementation) removeDevice(uuid uuid.UUID) error {
	delete(pnd.devices, uuid)
	return nil
}

func (pnd *pndImplementation) Request(uuid uuid.UUID, path string) error {
	d := pnd.devices[uuid]
	ctx := context.Background()
	_, err := d.Transport.Get(ctx, path)
	if err != nil {
		return err
	}
	return nil
}

func (pnd *pndImplementation) RequestAll(path string) error {
	for k := range pnd.devices {
		if err := pnd.Request(k, path); err != nil {
			return err
		}
	}
	return nil
}