99 lines
2.1 KiB
Go
99 lines
2.1 KiB
Go
package ocpp
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import (
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"fmt"
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"math/rand"
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"strings"
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"time"
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"github.com/evcc-io/evcc/api"
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"github.com/evcc-io/evcc/core/site"
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"github.com/evcc-io/evcc/hems/ocpp/profile"
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"github.com/evcc-io/evcc/util"
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"github.com/evcc-io/evcc/util/machine"
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ocpp16 "github.com/lorenzodonini/ocpp-go/ocpp1.6"
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ocppcore "github.com/lorenzodonini/ocpp-go/ocpp1.6/core"
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"github.com/lorenzodonini/ocpp-go/ws"
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)
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// OCPP is an OCPP client
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type OCPP struct {
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log *util.Logger
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site site.API
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cp ocpp16.ChargePoint
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}
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const retryTimeout = 5 * time.Second
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// New generates OCPP chargepoint client
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func New(conf map[string]interface{}, site site.API) (*OCPP, error) {
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var cc struct {
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URI string
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StationID string
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}
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if err := util.DecodeOther(conf, &cc); err != nil {
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return nil, err
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}
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log := util.NewLogger("ocpp")
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if cc.StationID == "" {
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id, err := machine.ProtectedID("evcc-ocpp")
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if err == nil {
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cc.StationID = fmt.Sprintf("evcc-%s", strings.ToLower(id))
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} else {
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cc.StationID = fmt.Sprintf("evcc-%d", rand.Int31())
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}
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log.DEBUG.Println("station id:", cc.StationID)
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}
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ws := ws.NewClient()
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cp := ocpp16.NewChargePoint(cc.StationID, nil, ws)
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s := &OCPP{
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log: log,
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site: site,
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cp: cp,
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}
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err := cp.Start(cc.URI)
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if err == nil {
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cp.SetCoreHandler(profile.NewCore(log, profile.GetDefaultConfig()))
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cp.SetSmartChargingHandler(profile.NewSmartCharging(log))
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go s.errorHandler(ws.Errors())
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go s.errorHandler(cp.Errors())
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}
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return s, err
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}
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// errorHandler logs error channel
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func (s *OCPP) errorHandler(errC <-chan error) {
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for err := range errC {
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s.log.ERROR.Println(err)
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}
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}
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// Run executes the OCPP chargepoint client
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func (s *OCPP) Run() {
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for {
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for id, lp := range s.site.Loadpoints() {
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connector := id + 1
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status := ocppcore.ChargePointStatusAvailable
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if lp.GetStatus() == api.StatusC {
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status = ocppcore.ChargePointStatusCharging
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}
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s.log.DEBUG.Printf("send: lp-%d status: %+v", connector, status)
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if _, err := s.cp.StatusNotification(connector, ocppcore.NoError, status); err != nil {
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s.log.ERROR.Printf("lp-%d: %v", connector, err)
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}
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}
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time.Sleep(retryTimeout)
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}
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}
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