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41 lines
1.0 KiB
41 lines
1.0 KiB
package client |
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import ( |
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"context" |
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"google.golang.org/grpc" |
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"sync" |
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) |
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type GrpcDirectClientFactory struct { |
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defaultOpts []grpc.DialOption |
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clientCache *sync.Map |
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} |
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func NewGrpcDirectClientFactory(defaultOpts ...grpc.DialOption) *GrpcDirectClientFactory { |
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return &GrpcDirectClientFactory{ |
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defaultOpts: defaultOpts, |
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clientCache: &sync.Map{}, |
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} |
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} |
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func (f *GrpcDirectClientFactory) NewConn(ctx context.Context, addr string, opts ...grpc.DialOption) (*grpc.ClientConn, error) { |
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dialOpts := make([]grpc.DialOption, 0, len(f.defaultOpts)+len(opts)) |
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dialOpts = append(dialOpts, f.defaultOpts...) |
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dialOpts = append(dialOpts, opts...) |
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return grpc.DialContext(ctx, addr, dialOpts...) |
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} |
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func (f *GrpcDirectClientFactory) GetConn(ctx context.Context, addr string, opts ...grpc.DialOption) (conn *grpc.ClientConn, err error) { |
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val, ok := f.clientCache.Load(addr) |
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if ok { |
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conn = val.(*grpc.ClientConn) |
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return |
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} |
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conn, err = f.NewConn(ctx, addr, opts...) |
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if err != nil { |
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return |
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} |
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f.clientCache.Store(addr, conn) |
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return |
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}
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