mirror of https://github.com/grpc/grpc-go.git
46 lines
1.4 KiB
Go
46 lines
1.4 KiB
Go
/*
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*
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* Copyright 2019 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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// Package internal contains functions/structs shared by xds
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// balancers/resolvers.
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package internal
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import (
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"fmt"
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)
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type clientID string
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// XDSClientID is the attributes key used to pass the address of the xdsClient
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// object shared between the resolver and the balancer. The xdsClient object is
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// created by the resolver and passed to the balancer.
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const XDSClientID = clientID("xdsClientID")
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// LocalityID is xds.Locality without XXX fields, so it can be used as map
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// keys.
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//
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// xds.Locality cannot be map keys because one of the XXX fields is a slice.
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type LocalityID struct {
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Region string `json:"region,omitempty"`
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Zone string `json:"zone,omitempty"`
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SubZone string `json:"subZone,omitempty"`
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}
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func (l LocalityID) String() string {
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return fmt.Sprintf("%s-%s-%s", l.Region, l.Zone, l.SubZone)
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}
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