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39 lines
882 B
39 lines
882 B
package direct
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import (
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"strings"
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"google.golang.org/grpc/resolver"
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)
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func init() {
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resolver.Register(NewBuilder())
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}
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type directBuilder struct{}
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// NewBuilder creates a directBuilder which is used to factory direct resolvers.
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// example:
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//
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// direct://<authority>/127.0.0.1:9000,127.0.0.2:9000
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func NewBuilder() resolver.Builder {
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return &directBuilder{}
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}
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func (d *directBuilder) Build(target resolver.Target, cc resolver.ClientConn, opts resolver.BuildOptions) (resolver.Resolver, error) {
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addrs := make([]resolver.Address, 0)
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for _, addr := range strings.Split(strings.TrimPrefix(target.URL.Path, "/"), ",") {
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addrs = append(addrs, resolver.Address{Addr: addr})
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}
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err := cc.UpdateState(resolver.State{
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Addresses: addrs,
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})
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if err != nil {
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return nil, err
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}
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return newDirectResolver(), nil
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}
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func (d *directBuilder) Scheme() string {
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return "direct"
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}
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