blob: 0919a0c8bb783c808496862b25564c3aad3b925e [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 kafka
import (
"time"
ca "github.com/opencord/voltha-protos/v3/go/inter_container"
)
const (
PartitionConsumer = iota
GroupCustomer = iota
)
const (
OffsetNewest = -1
OffsetOldest = -2
)
const (
GroupIdKey = "groupId"
Offset = "offset"
)
const (
DefaultKafkaHost = "127.0.0.1"
DefaultKafkaPort = 9092
DefaultGroupName = "voltha"
DefaultSleepOnError = 1
DefaultProducerFlushFrequency = 10
DefaultProducerFlushMessages = 10
DefaultProducerFlushMaxmessages = 100
DefaultProducerReturnSuccess = true
DefaultProducerReturnErrors = true
DefaultProducerRetryMax = 3
DefaultProducerRetryBackoff = time.Millisecond * 100
DefaultConsumerMaxwait = 100
DefaultMaxProcessingTime = 100
DefaultConsumerType = PartitionConsumer
DefaultNumberPartitions = 3
DefaultNumberReplicas = 1
DefaultAutoCreateTopic = false
DefaultMetadataMaxRetry = 3
DefaultLivenessChannelInterval = time.Second * 30
)
// MsgClient represents the set of APIs a Kafka MsgClient must implement
type Client interface {
Start() error
Stop()
CreateTopic(topic *Topic, numPartition int, repFactor int) error
DeleteTopic(topic *Topic) error
Subscribe(topic *Topic, kvArgs ...*KVArg) (<-chan *ca.InterContainerMessage, error)
UnSubscribe(topic *Topic, ch <-chan *ca.InterContainerMessage) error
SubscribeForMetadata(func(fromTopic string, timestamp time.Time))
Send(msg interface{}, topic *Topic, keys ...string) error
SendLiveness() error
EnableLivenessChannel(enable bool) chan bool
EnableHealthinessChannel(enable bool) chan bool
}