67 lines
1.6 KiB
Go
67 lines
1.6 KiB
Go
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package tracing
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import (
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"net/http"
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"github.com/urfave/negroni"
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)
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// NegroniHandlerWrapper is used to wrap negroni handler middleware
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type NegroniHandlerWrapper struct {
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name string
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next negroni.Handler
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clientSpanKind bool
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}
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// HTTPHandlerWrapper is used to wrap http handler middleware
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type HTTPHandlerWrapper struct {
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name string
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handler http.Handler
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clientSpanKind bool
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}
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// NewNegroniHandlerWrapper return a negroni.Handler struct
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func (t *Tracing) NewNegroniHandlerWrapper(name string, handler negroni.Handler, clientSpanKind bool) negroni.Handler {
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if t.IsEnabled() && handler != nil {
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return &NegroniHandlerWrapper{
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name: name,
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next: handler,
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clientSpanKind: clientSpanKind,
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}
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}
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return handler
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}
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// NewHTTPHandlerWrapper return a http.Handler struct
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func (t *Tracing) NewHTTPHandlerWrapper(name string, handler http.Handler, clientSpanKind bool) http.Handler {
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if t.IsEnabled() && handler != nil {
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return &HTTPHandlerWrapper{
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name: name,
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handler: handler,
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clientSpanKind: clientSpanKind,
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}
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}
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return handler
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}
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func (t *NegroniHandlerWrapper) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
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var finish func()
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_, r, finish = StartSpan(r, t.name, t.clientSpanKind)
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defer finish()
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if t.next != nil {
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t.next.ServeHTTP(rw, r, next)
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}
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}
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func (t *HTTPHandlerWrapper) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
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var finish func()
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_, r, finish = StartSpan(r, t.name, t.clientSpanKind)
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defer finish()
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if t.handler != nil {
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t.handler.ServeHTTP(rw, r)
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}
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}
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