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go/internal/lsp/protocol/context.go
Ian Cottrell 65e3620a7a internal/telemetry: add the ability to flush telemetry data
Change-Id: I5de33edc352a5202fdf9e38538a224dd6adafedb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/190799
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2019-08-21 16:29:56 +00:00

46 lines
1.1 KiB
Go

package protocol
import (
"context"
"fmt"
"golang.org/x/tools/internal/telemetry"
"golang.org/x/tools/internal/telemetry/export"
"golang.org/x/tools/internal/xcontext"
)
func init() {
export.AddExporters(logExporter{})
}
type contextKey int
const (
clientKey = contextKey(iota)
)
func WithClient(ctx context.Context, client Client) context.Context {
return context.WithValue(ctx, clientKey, client)
}
// logExporter sends the log event back to the client if there is one stored on the
// context.
type logExporter struct{}
func (logExporter) StartSpan(context.Context, *telemetry.Span) {}
func (logExporter) FinishSpan(context.Context, *telemetry.Span) {}
func (logExporter) Metric(context.Context, telemetry.MetricData) {}
func (logExporter) Flush() {}
func (logExporter) Log(ctx context.Context, event telemetry.Event) {
client, ok := ctx.Value(clientKey).(Client)
if !ok {
return
}
msg := &LogMessageParams{Type: Info, Message: fmt.Sprint(event)}
if event.Error != nil {
msg.Type = Error
}
go client.LogMessage(xcontext.Detach(ctx), msg)
}