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/*
*
* 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 passthrough implements a pass-through resolver. It sends the target
// name without scheme back to gRPC as resolved address.
package passthrough
import "google.golang.org/grpc/resolver"
const scheme = "passthrough"
type passthroughBuilder struct{}
func (*passthroughBuilder) Build(target resolver.Target, cc resolver.ClientConn, opts resolver.BuildOption) (resolver.Resolver, error) {
r := &passthroughResolver{
target: target,
cc: cc,
}
r.start()
return r, nil
}
func (*passthroughBuilder) Scheme() string {
return scheme
}
type passthroughResolver struct {
target resolver.Target
cc resolver.ClientConn
}
func (r *passthroughResolver) start() {
r.cc.NewAddress([]resolver.Address{{Addr: r.target.Endpoint}})
}
func (*passthroughResolver) ResolveNow(o resolver.ResolveNowOption) {}
func (*passthroughResolver) Close() {}
func init() {
resolver.Register(&passthroughBuilder{})
}
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