VOL-3501 Refeactoring of code for event handling
Change-Id: I7d225a7b3b664efdaef5a6c9c84a118bac594be7
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/events/events_proxy.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/events/events_proxy.go
new file mode 100644
index 0000000..a4b12f7
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/events/events_proxy.go
@@ -0,0 +1,187 @@
+/*
+ * Copyright 2020-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package events
+
+import (
+ "context"
+ "errors"
+ "fmt"
+ "strconv"
+ "strings"
+ "time"
+
+ "github.com/golang/protobuf/ptypes"
+ "github.com/opencord/voltha-lib-go/v4/pkg/events/eventif"
+ "github.com/opencord/voltha-lib-go/v4/pkg/kafka"
+ "github.com/opencord/voltha-lib-go/v4/pkg/log"
+ "github.com/opencord/voltha-protos/v4/go/voltha"
+)
+
+type EventProxy struct {
+ kafkaClient kafka.Client
+ eventTopic kafka.Topic
+}
+
+func NewEventProxy(opts ...EventProxyOption) *EventProxy {
+ var proxy EventProxy
+ for _, option := range opts {
+ option(&proxy)
+ }
+ return &proxy
+}
+
+type EventProxyOption func(*EventProxy)
+
+func MsgClient(client kafka.Client) EventProxyOption {
+ return func(args *EventProxy) {
+ args.kafkaClient = client
+ }
+}
+
+func MsgTopic(topic kafka.Topic) EventProxyOption {
+ return func(args *EventProxy) {
+ args.eventTopic = topic
+ }
+}
+
+func (ep *EventProxy) formatId(eventName string) string {
+ return fmt.Sprintf("Voltha.openolt.%s.%s", eventName, strconv.FormatInt(time.Now().UnixNano(), 10))
+}
+
+func (ep *EventProxy) getEventHeader(eventName string,
+ category eventif.EventCategory,
+ subCategory *eventif.EventSubCategory,
+ eventType eventif.EventType,
+ raisedTs int64) (*voltha.EventHeader, error) {
+ var header voltha.EventHeader
+ if strings.Contains(eventName, "_") {
+ eventName = strings.Join(strings.Split(eventName, "_")[:len(strings.Split(eventName, "_"))-2], "_")
+ } else {
+ eventName = "UNKNOWN_EVENT"
+ }
+ /* Populating event header */
+ header.Id = ep.formatId(eventName)
+ header.Category = category
+ if subCategory != nil {
+ header.SubCategory = *subCategory
+ }
+ header.Type = eventType
+ header.TypeVersion = eventif.EventTypeVersion
+
+ // raisedTs is in nanoseconds
+ timestamp, err := ptypes.TimestampProto(time.Unix(0, raisedTs))
+ if err != nil {
+ return nil, err
+ }
+ header.RaisedTs = timestamp
+
+ timestamp, err = ptypes.TimestampProto(time.Now())
+ if err != nil {
+ return nil, err
+ }
+ header.ReportedTs = timestamp
+
+ return &header, nil
+}
+
+/* Send out rpc events*/
+func (ep *EventProxy) SendRPCEvent(ctx context.Context, id string, rpcEvent *voltha.RPCEvent, category eventif.EventCategory, subCategory *eventif.EventSubCategory, raisedTs int64) error {
+ if rpcEvent == nil {
+ logger.Error(ctx, "Received empty rpc event")
+ return errors.New("rpc event nil")
+ }
+ var event voltha.Event
+ var err error
+ if event.Header, err = ep.getEventHeader(id, category, subCategory, voltha.EventType_RPC_EVENT, raisedTs); err != nil {
+ return err
+ }
+ event.EventType = &voltha.Event_RpcEvent{RpcEvent: rpcEvent}
+ if err := ep.sendEvent(ctx, &event); err != nil {
+ logger.Errorw(ctx, "Failed to send rpc event to KAFKA bus", log.Fields{"rpc-event": rpcEvent})
+ return err
+ }
+ logger.Debugw(ctx, "Successfully sent RPC event to KAFKA bus", log.Fields{"Id": event.Header.Id, "Category": event.Header.Category,
+ "SubCategory": event.Header.SubCategory, "Type": event.Header.Type, "TypeVersion": event.Header.TypeVersion,
+ "ReportedTs": event.Header.ReportedTs, "ResourceId": rpcEvent.ResourceId, "Context": rpcEvent.Context,
+ "RPCEventName": id})
+
+ return nil
+
+}
+
+/* Send out device events*/
+func (ep *EventProxy) SendDeviceEvent(ctx context.Context, deviceEvent *voltha.DeviceEvent, category eventif.EventCategory, subCategory eventif.EventSubCategory, raisedTs int64) error {
+ if deviceEvent == nil {
+ logger.Error(ctx, "Recieved empty device event")
+ return errors.New("Device event nil")
+ }
+ var event voltha.Event
+ var de voltha.Event_DeviceEvent
+ var err error
+ de.DeviceEvent = deviceEvent
+ if event.Header, err = ep.getEventHeader(deviceEvent.DeviceEventName, category, &subCategory, voltha.EventType_DEVICE_EVENT, raisedTs); err != nil {
+ return err
+ }
+ event.EventType = &de
+ if err := ep.sendEvent(ctx, &event); err != nil {
+ logger.Errorw(ctx, "Failed to send device event to KAFKA bus", log.Fields{"device-event": deviceEvent})
+ return err
+ }
+ logger.Infow(ctx, "Successfully sent device event KAFKA", log.Fields{"Id": event.Header.Id, "Category": event.Header.Category,
+ "SubCategory": event.Header.SubCategory, "Type": event.Header.Type, "TypeVersion": event.Header.TypeVersion,
+ "ReportedTs": event.Header.ReportedTs, "ResourceId": deviceEvent.ResourceId, "Context": deviceEvent.Context,
+ "DeviceEventName": deviceEvent.DeviceEventName})
+
+ return nil
+
+}
+
+// SendKpiEvent is to send kpi events to voltha.event topic
+func (ep *EventProxy) SendKpiEvent(ctx context.Context, id string, kpiEvent *voltha.KpiEvent2, category eventif.EventCategory, subCategory eventif.EventSubCategory, raisedTs int64) error {
+ if kpiEvent == nil {
+ logger.Error(ctx, "Recieved empty kpi event")
+ return errors.New("KPI event nil")
+ }
+ var event voltha.Event
+ var de voltha.Event_KpiEvent2
+ var err error
+ de.KpiEvent2 = kpiEvent
+ if event.Header, err = ep.getEventHeader(id, category, &subCategory, voltha.EventType_KPI_EVENT2, raisedTs); err != nil {
+ return err
+ }
+ event.EventType = &de
+ if err := ep.sendEvent(ctx, &event); err != nil {
+ logger.Errorw(ctx, "Failed to send kpi event to KAFKA bus", log.Fields{"device-event": kpiEvent})
+ return err
+ }
+ logger.Infow(ctx, "Successfully sent kpi event to KAFKA", log.Fields{"Id": event.Header.Id, "Category": event.Header.Category,
+ "SubCategory": event.Header.SubCategory, "Type": event.Header.Type, "TypeVersion": event.Header.TypeVersion,
+ "ReportedTs": event.Header.ReportedTs, "KpiEventName": "STATS_EVENT"})
+
+ return nil
+
+}
+
+func (ep *EventProxy) sendEvent(ctx context.Context, event *voltha.Event) error {
+ logger.Debugw(ctx, "Send event to kafka", log.Fields{"event": event})
+ if err := ep.kafkaClient.Send(ctx, event, &ep.eventTopic); err != nil {
+ return err
+ }
+ logger.Debugw(ctx, "Sent event to kafka", log.Fields{"event": event})
+
+ return nil
+}