mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-24 01:17:56 +08:00
60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
package sub_client
|
|
|
|
import (
|
|
"github.com/seaweedfs/seaweedfs/weed/mq/topic"
|
|
"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
|
|
"google.golang.org/grpc"
|
|
"time"
|
|
)
|
|
|
|
type SubscriberConfiguration struct {
|
|
ClientId string
|
|
ConsumerGroup string
|
|
ConsumerGroupInstanceId string
|
|
GrpcDialOption grpc.DialOption
|
|
}
|
|
|
|
type ContentConfiguration struct {
|
|
Topic topic.Topic
|
|
Filter string
|
|
StartTime time.Time
|
|
}
|
|
|
|
type ProcessorConfiguration struct {
|
|
ConcurrentPartitionLimit int // how many partitions to process concurrently
|
|
}
|
|
|
|
type OnEachMessageFunc func(key, value []byte) (shouldContinue bool, err error)
|
|
type OnCompletionFunc func()
|
|
|
|
type TopicSubscriber struct {
|
|
SubscriberConfig *SubscriberConfiguration
|
|
ContentConfig *ContentConfiguration
|
|
ProcessorConfig *ProcessorConfiguration
|
|
brokerPartitionAssignments []*mq_pb.BrokerPartitionAssignment
|
|
OnEachMessageFunc OnEachMessageFunc
|
|
OnCompletionFunc OnCompletionFunc
|
|
bootstrapBrokers []string
|
|
waitForMoreMessage bool
|
|
alreadyProcessedTsNs int64
|
|
}
|
|
|
|
func NewTopicSubscriber(bootstrapBrokers []string, subscriber *SubscriberConfiguration, content *ContentConfiguration, processor ProcessorConfiguration) *TopicSubscriber {
|
|
return &TopicSubscriber{
|
|
SubscriberConfig: subscriber,
|
|
ContentConfig: content,
|
|
ProcessorConfig: &processor,
|
|
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
|
|
}
|