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47 lines
1.4 KiB
Go
47 lines
1.4 KiB
Go
/*
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*
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* Copyright 2020 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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// Package networktype declares the network type to be used in the default
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// dialer. Attribute of a resolver.Address.
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package networktype
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import (
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"google.golang.org/grpc/resolver"
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)
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// keyType is the key to use for storing State in Attributes.
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type keyType string
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const key = keyType("grpc.internal.transport.networktype")
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// Set returns a copy of the provided address with attributes containing networkType.
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func Set(address resolver.Address, networkType string) resolver.Address {
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address.Attributes = address.Attributes.WithValue(key, networkType)
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return address
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}
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// Get returns the network type in the resolver.Address and true, or "", false
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// if not present.
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func Get(address resolver.Address) (string, bool) {
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v := address.Attributes.Value(key)
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if v == nil {
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return "", false
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}
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return v.(string), true
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}
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