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51 lines
1.5 KiB
51 lines
1.5 KiB
1 year ago
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package zookeeper
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import (
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"context"
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"strings"
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"github.com/OpenIMSDK/Open-IM-Server/pkg/common/log"
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"google.golang.org/grpc/resolver"
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)
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type Resolver struct {
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target resolver.Target
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cc resolver.ClientConn
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addrs []resolver.Address
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getConnsRemote func(serviceName string) (conns []resolver.Address, err error)
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}
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func (r *Resolver) ResolveNow(o resolver.ResolveNowOptions) {
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log.ZDebug(context.Background(), "start resolve now", "target", r.target)
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newConns, err := r.getConnsRemote(strings.TrimLeft(r.target.URL.Path, "/"))
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if err != nil {
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log.ZError(context.Background(), "resolve now error", err, "target", r.target)
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return
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}
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r.addrs = newConns
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if err := r.cc.UpdateState(resolver.State{Addresses: newConns}); err != nil {
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log.ZError(context.Background(), "UpdateState error", err, "conns", newConns)
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}
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log.ZDebug(context.Background(), "resolve now finished", "target", r.target, "conns", r.addrs)
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}
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func (s *Resolver) Close() {}
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func (s *ZkClient) Build(target resolver.Target, cc resolver.ClientConn, opts resolver.BuildOptions) (resolver.Resolver, error) {
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s.logger.Printf("build resolver: %+v, cc: %+v", target, cc)
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r := &Resolver{}
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r.target = target
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r.cc = cc
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r.getConnsRemote = s.GetConnsRemote
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r.ResolveNow(resolver.ResolveNowOptions{})
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s.lock.Lock()
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defer s.lock.Unlock()
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s.resolvers[strings.TrimLeft(target.URL.Path, "/")] = r
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s.logger.Printf("build resolver finished: %+v, cc: %+v", target, cc)
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return r, nil
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}
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func (s *ZkClient) Scheme() string { return s.scheme }
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