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mirror of https://github.com/open-telemetry/opentelemetry-go.git synced 2024-12-12 10:04:29 +02:00
opentelemetry-go/sdk/resource/auto.go
Tyler Yahn fdfc821bac
Add godot linter to golangci (#2845)
Comment should be complete sentences outside of lists with sentence
fragments. This adds the godot linter to check these complete sentences
end with punctuation. If they do not, running fix will append a period.
2022-04-25 13:22:49 -07:00

73 lines
2.4 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"
"errors"
"fmt"
)
var (
// ErrPartialResource is returned by a detector when complete source
// information for a Resource is unavailable or the source information
// contains invalid values that are omitted from the returned Resource.
ErrPartialResource = errors.New("partial resource")
)
// Detector detects OpenTelemetry resource information.
type Detector interface {
// DO NOT CHANGE: any modification will not be backwards compatible and
// must never be done outside of a new major release.
// Detect returns an initialized Resource based on gathered information.
// If the source information to construct a Resource contains invalid
// values, a Resource is returned with the valid parts of the source
// information used for initialization along with an appropriately
// wrapped ErrPartialResource error.
Detect(ctx context.Context) (*Resource, error)
// DO NOT CHANGE: any modification will not be backwards compatible and
// must never be done outside of a new major release.
}
// Detect calls all input detectors sequentially and merges each result with the previous one.
// It returns the merged error too.
func Detect(ctx context.Context, detectors ...Detector) (*Resource, error) {
var autoDetectedRes *Resource
var errInfo []string
for _, detector := range detectors {
if detector == nil {
continue
}
res, err := detector.Detect(ctx)
if err != nil {
errInfo = append(errInfo, err.Error())
if !errors.Is(err, ErrPartialResource) {
continue
}
}
autoDetectedRes, err = Merge(autoDetectedRes, res)
if err != nil {
errInfo = append(errInfo, err.Error())
}
}
var aggregatedError error
if len(errInfo) > 0 {
aggregatedError = fmt.Errorf("detecting resources: %s", errInfo)
}
return autoDetectedRes, aggregatedError
}