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package operation
import (
"fmt"
"strconv"
"strings"
"sync"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
"github.com/chrislusf/seaweedfs/weed/util"
"google.golang.org/grpc"
)
var (
grpcClients = make(map[string]*grpc.ClientConn)
grpcClientsLock sync.Mutex
)
func WithVolumeServerClient(volumeServer string, grpcDialOption grpc.DialOption, fn func(volume_server_pb.VolumeServerClient) error) error {
grpcAddress, err := toVolumeServerGrpcAddress(volumeServer)
if err != nil {
return err
}
return util.WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
client := volume_server_pb.NewVolumeServerClient(grpcConnection)
return fn(client)
}, grpcAddress, grpcDialOption)
}
func toVolumeServerGrpcAddress(volumeServer string) (grpcAddress string, err error) {
sepIndex := strings.LastIndex(volumeServer, ":")
port, err := strconv.Atoi(volumeServer[sepIndex+1:])
if err != nil {
glog.Errorf("failed to parse volume server address: %v", volumeServer)
return "", err
}
return fmt.Sprintf("%s:%d", volumeServer[0:sepIndex], port+10000), nil
}
func withMasterServerClient(masterServer string, grpcDialOption grpc.DialOption, fn func(masterClient master_pb.SeaweedClient) error) error {
masterGrpcAddress, parseErr := util.ParseServerToGrpcAddress(masterServer, 0)
if parseErr != nil {
return fmt.Errorf("failed to parse master grpc %v", masterServer)
}
return util.WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
client := master_pb.NewSeaweedClient(grpcConnection)
return fn(client)
}, masterGrpcAddress, grpcDialOption)
}
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