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package agent
import (
"github.com/seaweedfs/seaweedfs/weed/mq/client/pub_client"
"github.com/seaweedfs/seaweedfs/weed/mq/client/sub_client"
"github.com/seaweedfs/seaweedfs/weed/pb"
"github.com/seaweedfs/seaweedfs/weed/pb/mq_agent_pb"
"google.golang.org/grpc"
"sync"
)
type SessionId int64
type SessionEntry[T any] struct {
entry T
lastActiveTsNs int64
}
type MessageQueueAgentOptions struct {
SeedBrokers []pb.ServerAddress
}
type MessageQueueAgent struct {
mq_agent_pb.UnimplementedSeaweedMessagingAgentServer
option *MessageQueueAgentOptions
brokers []pb.ServerAddress
grpcDialOption grpc.DialOption
publishers map[SessionId]*SessionEntry[*pub_client.TopicPublisher]
publishersLock sync.RWMutex
subscribers map[SessionId]*SessionEntry[*sub_client.TopicSubscriber]
subscribersLock sync.RWMutex
}
func NewMessageQueueAgent(option *MessageQueueAgentOptions, grpcDialOption grpc.DialOption) *MessageQueueAgent {
// check masters to list all brokers
return &MessageQueueAgent{
option: option,
brokers: []pb.ServerAddress{},
grpcDialOption: grpcDialOption,
publishers: make(map[SessionId]*SessionEntry[*pub_client.TopicPublisher]),
subscribers: make(map[SessionId]*SessionEntry[*sub_client.TopicSubscriber]),
}
}
func (a *MessageQueueAgent) brokersList() []string {
var brokers []string
for _, broker := range a.brokers {
brokers = append(brokers, broker.String())
}
return brokers
}
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