blob: c4014eebd8de797efc4cfc8d895b98b71325a9af [file] [log] [blame]
/*
* 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
} else {
header.SubCategory = voltha.EventSubCategory_NONE
}
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
}