| /* |
| * |
| * Copyright 2020 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 networktype declares the network type to be used in the default |
| // dialer. Attribute of a resolver.Address. |
| package networktype |
| |
| import ( |
| "google.golang.org/grpc/resolver" |
| ) |
| |
| // keyType is the key to use for storing State in Attributes. |
| type keyType string |
| |
| const key = keyType("grpc.internal.transport.networktype") |
| |
| // Set returns a copy of the provided address with attributes containing networkType. |
| func Set(address resolver.Address, networkType string) resolver.Address { |
| address.Attributes = address.Attributes.WithValues(key, networkType) |
| return address |
| } |
| |
| // Get returns the network type in the resolver.Address and true, or "", false |
| // if not present. |
| func Get(address resolver.Address) (string, bool) { |
| v := address.Attributes.Value(key) |
| if v == nil { |
| return "", false |
| } |
| return v.(string), true |
| } |