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69 lines
1.6 KiB
69 lines
1.6 KiB
package pub_client
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import (
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"fmt"
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"github.com/rdleal/intervalst/interval"
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"github.com/seaweedfs/seaweedfs/weed/mq/pub_balancer"
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"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials/insecure"
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"sync"
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"time"
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)
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type PublisherConfiguration struct {
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CreateTopic bool
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CreateTopicPartitionCount int32
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}
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type PublishClient struct {
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mq_pb.SeaweedMessaging_PublishClient
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Broker string
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Err error
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}
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type TopicPublisher struct {
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namespace string
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topic string
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partition2Broker *interval.SearchTree[*PublishClient, int32]
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grpcDialOption grpc.DialOption
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sync.Mutex // protects grpc
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config *PublisherConfiguration
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}
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func NewTopicPublisher(namespace, topic string, config *PublisherConfiguration) *TopicPublisher {
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return &TopicPublisher{
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namespace: namespace,
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topic: topic,
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partition2Broker: interval.NewSearchTree[*PublishClient](func(a, b int32) int {
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return int(a - b)
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}),
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grpcDialOption: grpc.WithTransportCredentials(insecure.NewCredentials()),
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config: config,
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}
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}
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func (p *TopicPublisher) Connect(bootstrapBrokers []string) (err error) {
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if len(bootstrapBrokers) == 0 {
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return nil
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}
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for _, b := range bootstrapBrokers {
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err = p.doLookupAndConnect(b)
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if err == nil {
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return nil
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}
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fmt.Printf("failed to connect to %s: %v\n\n", b, err)
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}
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return err
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}
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func (p *TopicPublisher) Shutdown() error {
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if clients, found := p.partition2Broker.AllIntersections(0, pub_balancer.MaxPartitionCount); found {
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for _, client := range clients {
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client.CloseSend()
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}
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}
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time.Sleep(1100 * time.Millisecond)
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return nil
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}
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