mirror of
https://github.com/linka-cloud/grpc.git
synced 2024-11-22 10:56:26 +00:00
73 lines
2.2 KiB
Go
73 lines
2.2 KiB
Go
package service
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import (
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"context"
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"fmt"
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"github.com/fullstorydev/grpchan/inprocgrpc"
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grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
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"google.golang.org/grpc"
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insecure2 "google.golang.org/grpc/credentials/insecure"
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"go.linka.cloud/grpc-toolkit/interceptors"
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"go.linka.cloud/grpc-toolkit/interceptors/metadata"
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)
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func md(opts *options) interceptors.Interceptors {
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var pairs []string
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if opts.name != "" {
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pairs = append(pairs, "grpc-service-name", opts.name)
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}
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if opts.version != "" {
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pairs = append(pairs, "grpc-service-version", opts.version)
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}
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if len(pairs) != 0 {
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return metadata.NewInterceptors(pairs...)
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}
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return nil
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}
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func (s *service) wrapCC() grpc.ClientConnInterface {
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c, err := grpc.NewClient("internal", grpc.WithTransportCredentials(insecure2.NewCredentials()))
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if err != nil {
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panic(fmt.Sprintf("failed to create fake grpc client: %v", err))
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}
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w := &client{ch: s.inproc, c: c}
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if len(s.opts.unaryClientInterceptors) != 0 {
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w.ui = grpc_middleware.ChainUnaryClient(s.opts.unaryClientInterceptors...)
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}
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if len(s.opts.streamClientInterceptors) != 0 {
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w.si = grpc_middleware.ChainStreamClient(s.opts.streamClientInterceptors...)
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}
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return w
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}
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type client struct {
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ui grpc.UnaryClientInterceptor
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si grpc.StreamClientInterceptor
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ch *inprocgrpc.Channel
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c *grpc.ClientConn
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}
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func (c *client) Invoke(ctx context.Context, method string, args any, reply any, opts ...grpc.CallOption) error {
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if c.ui != nil {
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return c.ui(ctx, method, args, reply, c.c, c.invoke, opts...)
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}
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return c.ch.Invoke(ctx, method, args, reply, opts...)
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}
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func (c *client) NewStream(ctx context.Context, desc *grpc.StreamDesc, method string, opts ...grpc.CallOption) (grpc.ClientStream, error) {
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if c.si != nil {
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return c.si(ctx, desc, c.c, method, c.stream, opts...)
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}
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return c.ch.NewStream(ctx, desc, method, opts...)
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}
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func (c *client) invoke(ctx context.Context, method string, req, reply any, _ *grpc.ClientConn, opts ...grpc.CallOption) error {
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return c.ch.Invoke(ctx, method, req, reply, opts...)
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}
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func (c *client) stream(ctx context.Context, desc *grpc.StreamDesc, _ *grpc.ClientConn, method string, opts ...grpc.CallOption) (grpc.ClientStream, error) {
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return c.ch.NewStream(ctx, desc, method, opts...)
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}
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