/
registry.go
79 lines (67 loc) · 1.88 KB
/
registry.go
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/*
* Copyright 2021 Layotto Authors
*
* 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 rpc
import (
"fmt"
"mosn.io/layotto/components/pkg/info"
)
const ServiceName = "rpc"
// Registry is interface for registry
type Registry interface {
Register(fs ...*Factory)
Create(name string) (Invoker, error)
}
type rpcRegistry struct {
// Key as implementing component name
rpc map[string]FactoryMethod
info *info.RuntimeInfo
}
type FactoryMethod func() Invoker
// NewRegistry is init rpcRegistry
func NewRegistry(info *info.RuntimeInfo) Registry {
info.AddService(ServiceName)
return &rpcRegistry{
rpc: make(map[string]FactoryMethod),
info: info,
}
}
// Register is responsible for register factory to map
func (r rpcRegistry) Register(fs ...*Factory) {
for _, f := range fs {
r.rpc[f.Name] = f.Fm
r.info.RegisterComponent(ServiceName, f.Name)
}
}
// Create is responsible for get registered factory
func (r rpcRegistry) Create(name string) (Invoker, error) {
if f, ok := r.rpc[name]; ok {
r.info.LoadComponent(ServiceName, name)
return f(), nil
}
return nil, fmt.Errorf("service component %s is not registered", name)
}
// Factory is NewRpcFactory implement
type Factory struct {
Name string
Fm FactoryMethod
}
// NewRpcFactory is rpc create factory entrance
func NewRpcFactory(name string, fm FactoryMethod) *Factory {
return &Factory{
Name: name,
Fm: fm,
}
}