mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-20 12:00:24 +00:00
92 lines
2.6 KiB
Go
92 lines
2.6 KiB
Go
/*
|
|
*
|
|
* Copyright 2017 gRPC 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 manual defines a resolver that can be used to manually send resolved
|
|
// addresses to ClientConn.
|
|
package manual
|
|
|
|
import (
|
|
"strconv"
|
|
"time"
|
|
|
|
"google.golang.org/grpc/resolver"
|
|
)
|
|
|
|
// NewBuilderWithScheme creates a new test resolver builder with the given scheme.
|
|
func NewBuilderWithScheme(scheme string) *Resolver {
|
|
return &Resolver{
|
|
scheme: scheme,
|
|
}
|
|
}
|
|
|
|
// Resolver is also a resolver builder.
|
|
// It's build() function always returns itself.
|
|
type Resolver struct {
|
|
scheme string
|
|
|
|
// Fields actually belong to the resolver.
|
|
cc resolver.ClientConn
|
|
bootstrapAddrs []resolver.Address
|
|
}
|
|
|
|
// InitialAddrs adds resolved addresses to the resolver so that
|
|
// NewAddress doesn't need to be explicitly called after Dial.
|
|
func (r *Resolver) InitialAddrs(addrs []resolver.Address) {
|
|
r.bootstrapAddrs = addrs
|
|
}
|
|
|
|
// Build returns itself for Resolver, because it's both a builder and a resolver.
|
|
func (r *Resolver) Build(target resolver.Target, cc resolver.ClientConn, opts resolver.BuildOption) (resolver.Resolver, error) {
|
|
r.cc = cc
|
|
if r.bootstrapAddrs != nil {
|
|
r.NewAddress(r.bootstrapAddrs)
|
|
}
|
|
return r, nil
|
|
}
|
|
|
|
// Scheme returns the test scheme.
|
|
func (r *Resolver) Scheme() string {
|
|
return r.scheme
|
|
}
|
|
|
|
// ResolveNow is a noop for Resolver.
|
|
func (*Resolver) ResolveNow(o resolver.ResolveNowOption) {}
|
|
|
|
// Close is a noop for Resolver.
|
|
func (*Resolver) Close() {}
|
|
|
|
// NewAddress calls cc.NewAddress.
|
|
func (r *Resolver) NewAddress(addrs []resolver.Address) {
|
|
r.cc.NewAddress(addrs)
|
|
}
|
|
|
|
// NewServiceConfig calls cc.NewServiceConfig.
|
|
func (r *Resolver) NewServiceConfig(sc string) {
|
|
r.cc.NewServiceConfig(sc)
|
|
}
|
|
|
|
// GenerateAndRegisterManualResolver generates a random scheme and a Resolver
|
|
// with it. It also registers this Resolver.
|
|
// It returns the Resolver and a cleanup function to unregister it.
|
|
func GenerateAndRegisterManualResolver() (*Resolver, func()) {
|
|
scheme := strconv.FormatInt(time.Now().UnixNano(), 36)
|
|
r := NewBuilderWithScheme(scheme)
|
|
resolver.Register(r)
|
|
return r, func() { resolver.UnregisterForTesting(scheme) }
|
|
}
|