mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2024-12-22 20:06:07 +02:00
c2d5c66990
* setup sdk exporter package * use sdk exporter package in sdk trace * use sdk exporter package in all exporters * empty the exporters list before testing Load * move SpanData to the exporter package * use the SpanProcessor registration, don't register exporters * rename exporter structs to avoid stutter * rename Syncer and Batcher to SpanSyncer and SpanBatcher So it's explicit they are for spans, and we reduce the risk of name conflict * remove not moot todo * rename sdk exporter to export * only execute the SpanData if it is sampled
63 lines
1.7 KiB
Go
63 lines
1.7 KiB
Go
// Copyright 2019, OpenTelemetry 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 stdout
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"io"
|
|
"os"
|
|
|
|
"go.opentelemetry.io/sdk/export"
|
|
)
|
|
|
|
// Options are the options to be used when initializing a stdout export.
|
|
type Options struct {
|
|
// PrettyPrint will pretty the json representation of the span,
|
|
// making it print "pretty". Default is false.
|
|
PrettyPrint bool
|
|
}
|
|
|
|
// Exporter is an implementation of trace.Exporter that writes spans to stdout.
|
|
type Exporter struct {
|
|
pretty bool
|
|
outputWriter io.Writer
|
|
}
|
|
|
|
func NewExporter(o Options) (*Exporter, error) {
|
|
return &Exporter{
|
|
pretty: o.PrettyPrint,
|
|
outputWriter: os.Stdout,
|
|
}, nil
|
|
}
|
|
|
|
// ExportSpan writes a SpanData in json format to stdout.
|
|
func (e *Exporter) ExportSpan(ctx context.Context, data *export.SpanData) {
|
|
var jsonSpan []byte
|
|
var err error
|
|
if e.pretty {
|
|
jsonSpan, err = json.MarshalIndent(data, "", "\t")
|
|
} else {
|
|
jsonSpan, err = json.Marshal(data)
|
|
}
|
|
if err != nil {
|
|
// ignore writer failures for now
|
|
_, _ = e.outputWriter.Write([]byte("Error converting spanData to json: " + err.Error()))
|
|
return
|
|
}
|
|
// ignore writer failures for now
|
|
_, _ = e.outputWriter.Write(append(jsonSpan, byte('\n')))
|
|
}
|