/
resolver.go
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/
resolver.go
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// Copyright 2021. Go-Ceres
// Author https://github.com/go-ceres/go-ceres
//
// 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 resolver
import (
"github.com/go-ceres/go-ceres/registry"
"google.golang.org/grpc/resolver"
"sync"
)
const (
EndpointSepChar int32 = ','
subsetSize = 32
)
type Resolver struct {
stop chan struct{} // 停止监控通道
}
func (r Resolver) ResolveNow(_ resolver.ResolveNowOptions) {}
// Close 关闭
func (r Resolver) Close() {
r.stop <- struct{}{}
}
// RegisterDiscover 注册带注册中心的
func RegisterDiscover(reg registry.Registry) {
build := &DiscoverBuilder{
registry: reg,
rw: &sync.RWMutex{},
}
// 注册builder
resolver.Register(build)
}
// DeregisterDiscover 注销
func DeregisterDiscover(scheme string) {
resolver.UnregisterForTesting(scheme)
}
// RegisterDirect 注册直连
func RegisterDirect() {
if resolver.Get("direct") == nil {
resolver.Register(
&DirectBuilder{
rw: &sync.RWMutex{},
cache: map[string]*registry.Service{},
},
)
}
}