forked from mirrors/gotosocial
108 lines
3.4 KiB
Go
108 lines
3.4 KiB
Go
// Copyright The 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 resource // import "go.opentelemetry.io/otel/sdk/resource"
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
|
|
"go.opentelemetry.io/otel"
|
|
"go.opentelemetry.io/otel/attribute"
|
|
semconv "go.opentelemetry.io/otel/semconv/v1.17.0"
|
|
)
|
|
|
|
type (
|
|
// telemetrySDK is a Detector that provides information about
|
|
// the OpenTelemetry SDK used. This Detector is included as a
|
|
// builtin. If these resource attributes are not wanted, use
|
|
// the WithTelemetrySDK(nil) or WithoutBuiltin() options to
|
|
// explicitly disable them.
|
|
telemetrySDK struct{}
|
|
|
|
// host is a Detector that provides information about the host
|
|
// being run on. This Detector is included as a builtin. If
|
|
// these resource attributes are not wanted, use the
|
|
// WithHost(nil) or WithoutBuiltin() options to explicitly
|
|
// disable them.
|
|
host struct{}
|
|
|
|
stringDetector struct {
|
|
schemaURL string
|
|
K attribute.Key
|
|
F func() (string, error)
|
|
}
|
|
|
|
defaultServiceNameDetector struct{}
|
|
)
|
|
|
|
var (
|
|
_ Detector = telemetrySDK{}
|
|
_ Detector = host{}
|
|
_ Detector = stringDetector{}
|
|
_ Detector = defaultServiceNameDetector{}
|
|
)
|
|
|
|
// Detect returns a *Resource that describes the OpenTelemetry SDK used.
|
|
func (telemetrySDK) Detect(context.Context) (*Resource, error) {
|
|
return NewWithAttributes(
|
|
semconv.SchemaURL,
|
|
semconv.TelemetrySDKName("opentelemetry"),
|
|
semconv.TelemetrySDKLanguageGo,
|
|
semconv.TelemetrySDKVersion(otel.Version()),
|
|
), nil
|
|
}
|
|
|
|
// Detect returns a *Resource that describes the host being run on.
|
|
func (host) Detect(ctx context.Context) (*Resource, error) {
|
|
return StringDetector(semconv.SchemaURL, semconv.HostNameKey, os.Hostname).Detect(ctx)
|
|
}
|
|
|
|
// StringDetector returns a Detector that will produce a *Resource
|
|
// containing the string as a value corresponding to k. The resulting Resource
|
|
// will have the specified schemaURL.
|
|
func StringDetector(schemaURL string, k attribute.Key, f func() (string, error)) Detector {
|
|
return stringDetector{schemaURL: schemaURL, K: k, F: f}
|
|
}
|
|
|
|
// Detect returns a *Resource that describes the string as a value
|
|
// corresponding to attribute.Key as well as the specific schemaURL.
|
|
func (sd stringDetector) Detect(ctx context.Context) (*Resource, error) {
|
|
value, err := sd.F()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("%s: %w", string(sd.K), err)
|
|
}
|
|
a := sd.K.String(value)
|
|
if !a.Valid() {
|
|
return nil, fmt.Errorf("invalid attribute: %q -> %q", a.Key, a.Value.Emit())
|
|
}
|
|
return NewWithAttributes(sd.schemaURL, sd.K.String(value)), nil
|
|
}
|
|
|
|
// Detect implements Detector.
|
|
func (defaultServiceNameDetector) Detect(ctx context.Context) (*Resource, error) {
|
|
return StringDetector(
|
|
semconv.SchemaURL,
|
|
semconv.ServiceNameKey,
|
|
func() (string, error) {
|
|
executable, err := os.Executable()
|
|
if err != nil {
|
|
return "unknown_service:go", nil
|
|
}
|
|
return "unknown_service:" + filepath.Base(executable), nil
|
|
},
|
|
).Detect(ctx)
|
|
}
|