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mirror of https://github.com/open-telemetry/opentelemetry-go.git synced 2024-12-14 10:13:10 +02:00
opentelemetry-go/exporters/stdout/stdoutmetric/encoder.go
Peter Liu 6a95d5770c
New stdoutmetric encoder with ignore timestamp (#3828)
* new stdoutmetric encoder with ignore timestamp

Signed-off-by: Peter Liu <lpfvip2008@gmail.com>

* refactor to avoid using a dedicated encoder

Signed-off-by: Peter Liu <lpfvip2008@gmail.com>

* remove useless encoder code

Signed-off-by: Peter Liu <lpfvip2008@gmail.com>

* dont't change the original data

Signed-off-by: Peter Liu <lpfvip2008@gmail.com>

* Update exporters/stdout/stdoutmetric/exporter.go

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>

* complete test data and add changelog entry

Signed-off-by: Peter Liu <lpfvip2008@gmail.com>

* Move changelog entry to unreleased

---------

Signed-off-by: Peter Liu <lpfvip2008@gmail.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
Co-authored-by: Tyler Yahn <codingalias@gmail.com>
2023-03-09 11:41:47 -08:00

43 lines
1.4 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 stdoutmetric // import "go.opentelemetry.io/otel/exporters/stdout/stdoutmetric"
import (
"errors"
)
// Encoder encodes and outputs OpenTelemetry metric data-types as human
// readable text.
type Encoder interface {
// Encode handles the encoding and writing of OpenTelemetry metric data.
Encode(v any) error
}
// encoderHolder is the concrete type used to wrap an Encoder so it can be
// used as a atomic.Value type.
type encoderHolder struct {
encoder Encoder
}
func (e encoderHolder) Encode(v any) error { return e.encoder.Encode(v) }
// shutdownEncoder is used when the exporter is shutdown. It always returns
// errShutdown when Encode is called.
type shutdownEncoder struct{}
var errShutdown = errors.New("exporter shutdown")
func (shutdownEncoder) Encode(any) error { return errShutdown }