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resolver.go
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resolver.go
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package internal
import (
"fmt"
"google.golang.org/grpc/resolver"
)
const (
// DirectScheme stands for direct scheme.
DirectScheme = "direct"
// DiscovScheme stands for discov scheme.
DiscovScheme = "discov"
// EtcdScheme stands for etcd scheme.
EtcdScheme = "etcd"
// KubernetesScheme stands for k8s scheme.
KubernetesScheme = "k8s"
// EndpointSepChar is the separator cha in endpoints.
EndpointSepChar = ','
subsetSize = 32
)
var (
// EndpointSep is the separator string in endpoints.
EndpointSep = fmt.Sprintf("%c", EndpointSepChar)
directResolverBuilder directBuilder
discovResolverBuilder discovBuilder
etcdResolverBuilder etcdBuilder
k8sResolverBuilder kubeBuilder
)
// RegisterResolver registers the direct and discov schemes to the resolver.
func RegisterResolver() {
resolver.Register(&directResolverBuilder)
resolver.Register(&discovResolverBuilder)
resolver.Register(&etcdResolverBuilder)
resolver.Register(&k8sResolverBuilder)
}
type nopResolver struct {
cc resolver.ClientConn
}
func (r *nopResolver) Close() {
}
func (r *nopResolver) ResolveNow(_ resolver.ResolveNowOptions) {
}