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package broker
import (
"context"
"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
)
// FindTopicBrokers returns the brokers that are serving the topic
//
// 1. lock the topic
//
// 2. find the topic partitions on the filer
// 2.1 if the topic is not found, return error
// 2.2 if the request is_for_publish, create the topic
// 2.2.1 if the request is_for_subscribe, return error not found
// 2.2.2 if the request is_for_publish, create the topic
// 2.2 if the topic is found, return the brokers
//
// 3. unlock the topic
func (broker *MessageQueueBroker) LookupTopicBrokers(ctx context.Context, request *mq_pb.LookupTopicBrokersRequest) (*mq_pb.LookupTopicBrokersResponse, error) {
ret := &mq_pb.LookupTopicBrokersResponse{}
// TODO lock the topic
// find the topic partitions on the filer
// if the topic is not found
// if the request is_for_publish
// create the topic
// if the request is_for_subscribe
// return error not found
// t := topic.FromPbTopic(request.Topic)
ret.Topic = request.Topic
ret.BrokerPartitionAssignments = []*mq_pb.BrokerPartitionAssignment{
{
LeaderBroker: "localhost:17777",
FollowerBrokers: []string{"localhost:17777"},
Partition: &mq_pb.Partition{
RingSize: MaxPartitionCount,
RangeStart: 0,
RangeStop: MaxPartitionCount,
},
},
}
return ret, nil
}
// CheckTopicPartitionsStatus check the topic partitions on the broker
func (broker *MessageQueueBroker) CheckTopicPartitionsStatus(c context.Context, request *mq_pb.CheckTopicPartitionsStatusRequest) (*mq_pb.CheckTopicPartitionsStatusResponse, error) {
ret := &mq_pb.CheckTopicPartitionsStatusResponse{}
return ret, nil
}