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registry.go
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registry.go
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// Copyright 2019-present Open Networking Foundation.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package node
import (
"github.com/atomix/atomix-go-node/pkg/atomix/service"
"google.golang.org/grpc"
)
var registry = newRegistry()
// GetRegistry returns the service registry
func GetRegistry() *Registry {
return registry
}
// RegisterServer registers a service server
func RegisterServer(server func(*grpc.Server, Protocol)) {
registry.RegisterServer(server)
}
// RegisterService registers a new service
func RegisterService(name string, service func(ctx service.Context) service.Service) {
registry.RegisterService(name, service)
}
// RegisterServers registers service servers on the given gRPC server
func RegisterServers(server *grpc.Server, protocol Protocol) {
for _, s := range registry.servers {
s(server, protocol)
}
}
// Registry is a registry of service types
type Registry struct {
servers []func(*grpc.Server, Protocol)
services map[string]func(ctx service.Context) service.Service
}
// RegisterServer registers a new primitive server
func (r *Registry) RegisterServer(server func(*grpc.Server, Protocol)) {
r.servers = append(r.servers, server)
}
// RegisterService registers a new primitive service
func (r *Registry) RegisterService(name string, service func(ctx service.Context) service.Service) {
r.services[name] = service
}
// getType returns a service type by name
func (r *Registry) getType(name string) func(sctx service.Context) service.Service {
return r.services[name]
}
// newRegistry returns a new primitive type registry
func newRegistry() *Registry {
return &Registry{
servers: make([]func(*grpc.Server, Protocol), 0),
services: make(map[string]func(ctx service.Context) service.Service),
}
}