blob: 1f14b3a502b753f0b2fea7fa06dd4a707e3c42d0 [file] [log] [blame]
/*
* Copyright 2018-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 common
import (
"errors"
"fmt"
"github.com/opencord/voltha-go/common/log"
"github.com/opencord/voltha-go/kafka"
"github.com/opencord/voltha-protos/go/voltha"
"strconv"
"strings"
"time"
)
const (
EventTypeVersion = "0.1"
)
type (
EventType = voltha.EventType_EventType
EventCategory = voltha.EventCategory_EventCategory
EventSubCategory = voltha.EventSubCategory_EventSubCategory
)
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 EventCategory, subCategory EventSubCategory, eventType EventType, raisedTs int64) *voltha.EventHeader {
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
header.SubCategory = subCategory
header.Type = eventType
header.TypeVersion = EventTypeVersion
header.RaisedTs = float32(raisedTs)
header.ReportedTs = float32(time.Now().UnixNano())
return &header
}
/* Send out device events*/
func (ep *EventProxy) SendDeviceEvent(deviceEvent *voltha.DeviceEvent, category EventCategory, subCategory EventSubCategory, raisedTs int64) error {
if deviceEvent == nil {
log.Error("Recieved empty device event")
return errors.New("Device event nil")
}
var event voltha.Event
var de voltha.Event_DeviceEvent
de.DeviceEvent = deviceEvent
event.Header = ep.getEventHeader(deviceEvent.DeviceEventName, category, subCategory, voltha.EventType_DEVICE_EVENT, raisedTs)
event.EventType = &de
if err := ep.sendEvent(&event); err != nil {
log.Errorw("Failed to send device event to KAFKA bus", log.Fields{"device-event": deviceEvent})
return err
}
log.Infow("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
}
/* TODO: Send out KPI events*/
func (ep *EventProxy) sendEvent(event *voltha.Event) error {
if err := ep.kafkaClient.Send(event, &ep.eventTopic); err != nil {
return err
}
log.Debugw("Sent event to kafka", log.Fields{"event": event})
return nil
}