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43 lines
1.1 KiB
43 lines
1.1 KiB
package tracing
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import (
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"context"
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"fmt"
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"go.opentelemetry.io/otel/trace"
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"google.golang.org/grpc/peer"
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"google.golang.org/grpc/stats"
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)
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// ClientHandler is tracing ClientHandler
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type ClientHandler struct{}
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// HandleConn exists to satisfy gRPC stats.Handler.
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func (c *ClientHandler) HandleConn(ctx context.Context, cs stats.ConnStats) {
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fmt.Println("Handle connection.")
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}
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// TagConn exists to satisfy gRPC stats.Handler.
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func (c *ClientHandler) TagConn(ctx context.Context, cti *stats.ConnTagInfo) context.Context {
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return ctx
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}
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// HandleRPC implements per-RPC tracing and stats instrumentation.
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func (c *ClientHandler) HandleRPC(ctx context.Context, rs stats.RPCStats) {
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if _, ok := rs.(*stats.OutHeader); !ok {
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return
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}
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p, ok := peer.FromContext(ctx)
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if !ok {
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return
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}
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remoteAddr := p.Addr.String()
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if span := trace.SpanFromContext(ctx); span.SpanContext().IsValid() {
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span.SetAttributes(peerAttr(remoteAddr)...)
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}
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}
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// TagRPC implements per-RPC context management.
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func (c *ClientHandler) TagRPC(ctx context.Context, rti *stats.RPCTagInfo) context.Context {
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return ctx
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}
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