59 lines
2.0 KiB
Go
59 lines
2.0 KiB
Go
// Copyright © 2017 The virtual-kubelet authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package root
|
|
|
|
import (
|
|
"github.com/virtual-kubelet/virtual-kubelet/errdefs"
|
|
"go.opencensus.io/trace"
|
|
)
|
|
|
|
type TracingExporterOptions struct {
|
|
Tags map[string]string
|
|
ServiceName string
|
|
}
|
|
|
|
var (
|
|
tracingExporters = make(map[string]TracingExporterInitFunc)
|
|
)
|
|
|
|
// TracingExporterInitFunc is the function that is called to initialize an exporter.
|
|
// This is used when registering an exporter and called when a user specifed they want to use the exporter.
|
|
type TracingExporterInitFunc func(TracingExporterOptions) (trace.Exporter, error)
|
|
|
|
// RegisterTracingExporter registers a tracing exporter.
|
|
// For a user to select an exporter, it must be registered here.
|
|
func RegisterTracingExporter(name string, f TracingExporterInitFunc) {
|
|
tracingExporters[name] = f
|
|
}
|
|
|
|
// GetTracingExporter gets the specified tracing exporter passing in the options to the exporter init function.
|
|
// For an exporter to be availbale here it must be registered with `RegisterTracingExporter`.
|
|
func GetTracingExporter(name string, opts TracingExporterOptions) (trace.Exporter, error) {
|
|
f, ok := tracingExporters[name]
|
|
if !ok {
|
|
return nil, errdefs.NotFoundf("tracing exporter %q not found", name)
|
|
}
|
|
return f(opts)
|
|
}
|
|
|
|
// AvailableTraceExporters gets the list of registered exporters
|
|
func AvailableTraceExporters() []string {
|
|
out := make([]string, 0, len(tracingExporters))
|
|
for k := range tracingExporters {
|
|
out = append(out, k)
|
|
}
|
|
return out
|
|
}
|