forked from jaegertracing/jaeger
/
mux.go
58 lines (51 loc) · 2.04 KB
/
mux.go
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// Copyright (c) 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package tracing
import (
"net/http"
"github.com/opentracing-contrib/go-stdlib/nethttp"
"github.com/opentracing/opentracing-go"
)
// NewServeMux creates a new TracedServeMux.
func NewServeMux(tracer opentracing.Tracer) *TracedServeMux {
return &TracedServeMux{
mux: http.NewServeMux(),
tracer: tracer,
}
}
// TracedServeMux is a wrapper around http.ServeMux that instruments handlers for tracing.
type TracedServeMux struct {
mux *http.ServeMux
tracer opentracing.Tracer
}
// Handle implements http.ServeMux#Handle
func (tm *TracedServeMux) Handle(pattern string, handler http.Handler) {
middleware := nethttp.Middleware(
tm.tracer,
handler,
nethttp.OperationNameFunc(func(r *http.Request) string {
return "HTTP " + r.Method + " " + pattern
}))
tm.mux.Handle(pattern, middleware)
}
// ServeHTTP implements http.ServeMux#ServeHTTP
func (tm *TracedServeMux) ServeHTTP(w http.ResponseWriter, r *http.Request) {
tm.mux.ServeHTTP(w, r)
}