seaweedfs/weed/mq/client/sub_client/subscriber.go
Chris Lu 580940bf82
Merge accumulated changes related to message queue (#5098)
* balance partitions on brokers

* prepare topic partition first and then publish, move partition

* purge unused APIs

* clean up

* adjust logs

* add BalanceTopics() grpc API

* configure topic

* configure topic command

* refactor

* repair missing partitions

* sequence of operations to ensure ordering

* proto to close publishers and consumers

* rename file

* topic partition versioned by unixTimeNs

* create local topic partition

* close publishers

* randomize the client name

* wait until no publishers

* logs

* close stop publisher channel

* send last ack

* comments

* comment

* comments

* support list of brokers

* add cli options

* Update .gitignore

* logs

* return io.eof directly

* refactor

* optionally create topic

* refactoring

* detect consumer disconnection

* sub client wait for more messages

* subscribe by time stamp

* rename

* rename to sub_balancer

* rename

* adjust comments

* rename

* fix compilation

* rename

* rename

* SubscriberToSubCoordinator

* sticky rebalance

* go fmt

* add tests

* balance partitions on brokers

* prepare topic partition first and then publish, move partition

* purge unused APIs

* clean up

* adjust logs

* add BalanceTopics() grpc API

* configure topic

* configure topic command

* refactor

* repair missing partitions

* sequence of operations to ensure ordering

* proto to close publishers and consumers

* rename file

* topic partition versioned by unixTimeNs

* create local topic partition

* close publishers

* randomize the client name

* wait until no publishers

* logs

* close stop publisher channel

* send last ack

* comments

* comment

* comments

* support list of brokers

* add cli options

* Update .gitignore

* logs

* return io.eof directly

* refactor

* optionally create topic

* refactoring

* detect consumer disconnection

* sub client wait for more messages

* subscribe by time stamp

* rename

* rename to sub_balancer

* rename

* adjust comments

* rename

* fix compilation

* rename

* rename

* SubscriberToSubCoordinator

* sticky rebalance

* go fmt

* add tests

* tracking topic=>broker

* merge

* comment
2023-12-11 12:05:54 -08:00

57 lines
1.5 KiB
Go

package sub_client
import (
"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
"google.golang.org/grpc"
"time"
)
type SubscriberConfiguration struct {
ClientId string
GroupId string
GroupInstanceId string
GroupMinimumPeers int32
GroupMaximumPeers int32
BootstrapServers []string
GrpcDialOption grpc.DialOption
}
type ContentConfiguration struct {
Namespace string
Topic string
Filter string
StartTime time.Time
}
type OnEachMessageFunc func(key, value []byte) (shouldContinue bool)
type OnCompletionFunc func()
type TopicSubscriber struct {
SubscriberConfig *SubscriberConfiguration
ContentConfig *ContentConfiguration
brokerPartitionAssignments []*mq_pb.BrokerPartitionAssignment
OnEachMessageFunc OnEachMessageFunc
OnCompletionFunc OnCompletionFunc
bootstrapBrokers []string
waitForMoreMessage bool
alreadyProcessedTsNs int64
}
func NewTopicSubscriber(bootstrapBrokers []string, subscriber *SubscriberConfiguration, content *ContentConfiguration) *TopicSubscriber {
return &TopicSubscriber{
SubscriberConfig: subscriber,
ContentConfig: content,
bootstrapBrokers: bootstrapBrokers,
waitForMoreMessage: true,
alreadyProcessedTsNs: content.StartTime.UnixNano(),
}
}
func (sub *TopicSubscriber) SetEachMessageFunc(onEachMessageFn OnEachMessageFunc) {
sub.OnEachMessageFunc = onEachMessageFn
}
func (sub *TopicSubscriber) SetCompletionFunc(onCompletionFn OnCompletionFunc) {
sub.OnCompletionFunc = onCompletionFn
}