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580940bf82
* 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
57 lines
1.5 KiB
Go
57 lines
1.5 KiB
Go
package sub_client
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import (
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"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
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"google.golang.org/grpc"
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"time"
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)
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type SubscriberConfiguration struct {
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ClientId string
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GroupId string
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GroupInstanceId string
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GroupMinimumPeers int32
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GroupMaximumPeers int32
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BootstrapServers []string
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GrpcDialOption grpc.DialOption
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}
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type ContentConfiguration struct {
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Namespace string
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Topic string
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Filter string
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StartTime time.Time
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}
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type OnEachMessageFunc func(key, value []byte) (shouldContinue bool)
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type OnCompletionFunc func()
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type TopicSubscriber struct {
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SubscriberConfig *SubscriberConfiguration
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ContentConfig *ContentConfiguration
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brokerPartitionAssignments []*mq_pb.BrokerPartitionAssignment
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OnEachMessageFunc OnEachMessageFunc
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OnCompletionFunc OnCompletionFunc
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bootstrapBrokers []string
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waitForMoreMessage bool
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alreadyProcessedTsNs int64
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}
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func NewTopicSubscriber(bootstrapBrokers []string, subscriber *SubscriberConfiguration, content *ContentConfiguration) *TopicSubscriber {
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return &TopicSubscriber{
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SubscriberConfig: subscriber,
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ContentConfig: content,
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bootstrapBrokers: bootstrapBrokers,
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waitForMoreMessage: true,
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alreadyProcessedTsNs: content.StartTime.UnixNano(),
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}
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}
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func (sub *TopicSubscriber) SetEachMessageFunc(onEachMessageFn OnEachMessageFunc) {
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sub.OnEachMessageFunc = onEachMessageFn
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}
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func (sub *TopicSubscriber) SetCompletionFunc(onCompletionFn OnCompletionFunc) {
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sub.OnCompletionFunc = onCompletionFn
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}
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