/
endpoint.go
175 lines (159 loc) · 4.36 KB
/
endpoint.go
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package diode
import (
"context"
"fmt"
"github.com/go-kit/kit/endpoint"
"github.com/mainflux/mainflux"
"github.com/orb-community/orb/pkg/errors"
"github.com/orb-community/orb/pkg/types"
)
func viewAgentBackendHandlerEndpoint(dio diodeBackend) endpoint.Endpoint {
return func(ctx context.Context, request interface{}) (response interface{}, err error) {
req := request.(viewResourceReq)
if err := req.validate(); err != nil {
return nil, err
}
_, err = dio.auth.Identify(ctx, &mainflux.Token{Value: req.token})
if err != nil {
return "", errors.Wrap(errors.ErrUnauthorizedAccess, err)
}
bk, err := dio.handlers()
if err != nil {
return nil, err
}
return bk, nil
}
}
func viewAgentBackendInputEndpoint(dio diodeBackend) endpoint.Endpoint {
return func(ctx context.Context, request interface{}) (response interface{}, err error) {
req := request.(viewResourceReq)
if err := req.validate(); err != nil {
return nil, err
}
_, err = dio.auth.Identify(ctx, &mainflux.Token{Value: req.token})
if err != nil {
return "", errors.Wrap(errors.ErrUnauthorizedAccess, err)
}
bk, err := dio.inputs()
if err != nil {
return nil, err
}
return bk, nil
}
}
func viewAgentBackendTapsEndpoint(dio diodeBackend) endpoint.Endpoint {
return func(ctx context.Context, request interface{}) (response interface{}, err error) {
req := request.(viewResourceReq)
if err := req.validate(); err != nil {
return nil, err
}
r, err := dio.auth.Identify(ctx, &mainflux.Token{Value: req.token})
if err != nil {
return "", errors.Wrap(errors.ErrUnauthorizedAccess, err)
}
metadataList, err := dio.taps(ctx, r.Id)
if err != nil {
return nil, err
}
var list []types.Metadata
for _, mt := range metadataList {
extractTaps(mt, &list)
}
res, err := toBackendTaps(list)
if err != nil {
return nil, err
}
tapsGroup := groupTaps(res)
var tpRes []agentBackendTapsRes
for _, v := range tapsGroup {
tpRes = append(tpRes, agentBackendTapsRes{
Name: v.Name,
InputType: v.InputType,
ConfigPredefined: v.ConfigPredefined,
TotalAgents: totalAgents{Total: v.TotalAgents},
})
}
return tpRes, nil
}
}
// Used to get the taps from policy json - CHECK IF STILL NEEDED
func extractTaps(mt map[string]interface{}, list *[]types.Metadata) {
for k, v := range mt {
if k == "taps" {
m, _ := v.(map[string]interface{})
*list = append(*list, m)
} else {
m, _ := v.(map[string]interface{})
extractTaps(m, list)
}
}
}
// Used to cast the map[string]interface for a concrete struct - CHECK IF STILL NEEDED
func toBackendTaps(list []types.Metadata) ([]BackendTaps, error) {
var bkTaps []BackendTaps
for _, tc := range list {
bkTap := BackendTaps{}
var idx int
for k, v := range tc {
bkTap.Name = k
m, ok := v.(map[string]interface{})
if !ok {
return nil, errors.New("Error to group taps")
}
for k, v := range m {
switch k {
case "config":
m, ok := v.(map[string]interface{})
if !ok {
return nil, errors.New("Error to group taps")
}
for k, _ := range m {
bkTap.ConfigPredefined = append(bkTap.ConfigPredefined, []string{k}...)
}
case "input_type":
bkTap.InputType = fmt.Sprintf("%v", v)
}
}
idx++
bkTap.TotalAgents += uint64(idx)
bkTaps = append(bkTaps, bkTap)
}
}
return bkTaps, nil
}
// Used to aggregate and summarize the taps and return a slice of BackendTaps - CHECK IF STILL NEEDED
func groupTaps(taps []BackendTaps) []BackendTaps {
tapsMap := make(map[string]BackendTaps)
for _, tap := range taps {
key := key(tap.Name, tap.InputType)
if v, ok := tapsMap[key]; ok {
v.ConfigPredefined = append(v.ConfigPredefined, tap.ConfigPredefined...)
v.TotalAgents += 1
tapsMap[key] = v
} else {
tapsMap[key] = BackendTaps{
Name: tap.Name,
InputType: tap.InputType,
ConfigPredefined: tap.ConfigPredefined,
TotalAgents: tap.TotalAgents,
}
}
}
var bkTaps []BackendTaps
keys := make(map[string]bool)
for _, v := range tapsMap {
list := []string{}
for _, config := range v.ConfigPredefined {
if _, ok := keys[config]; !ok {
keys[config] = true
list = append(list, config)
}
}
v.ConfigPredefined = list
bkTaps = append(bkTaps, v)
}
return bkTaps
}
func key(name string, inputType string) string {
return fmt.Sprintf("%s-%s", name, inputType)
}