opentelemetry-collector/pdata/pmetric/pmetricotlp/request.go

75 lines
2.3 KiB
Go

// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package pmetricotlp // import "go.opentelemetry.io/collector/pdata/pmetric/pmetricotlp"
import (
"bytes"
"go.opentelemetry.io/collector/pdata/internal"
otlpcollectormetrics "go.opentelemetry.io/collector/pdata/internal/data/protogen/collector/metrics/v1"
"go.opentelemetry.io/collector/pdata/internal/json"
"go.opentelemetry.io/collector/pdata/pmetric"
)
var jsonUnmarshaler = &pmetric.JSONUnmarshaler{}
// ExportRequest represents the request for gRPC/HTTP client/server.
// It's a wrapper for pmetric.Metrics data.
type ExportRequest struct {
orig *otlpcollectormetrics.ExportMetricsServiceRequest
state *internal.State
}
// NewExportRequest returns an empty ExportRequest.
func NewExportRequest() ExportRequest {
state := internal.StateMutable
return ExportRequest{
orig: &otlpcollectormetrics.ExportMetricsServiceRequest{},
state: &state,
}
}
// NewExportRequestFromMetrics returns a ExportRequest from pmetric.Metrics.
// Because ExportRequest is a wrapper for pmetric.Metrics,
// any changes to the provided Metrics struct will be reflected in the ExportRequest and vice versa.
func NewExportRequestFromMetrics(md pmetric.Metrics) ExportRequest {
return ExportRequest{
orig: internal.GetOrigMetrics(internal.Metrics(md)),
state: internal.GetMetricsState(internal.Metrics(md)),
}
}
// MarshalProto marshals ExportRequest into proto bytes.
func (ms ExportRequest) MarshalProto() ([]byte, error) {
return ms.orig.Marshal()
}
// UnmarshalProto unmarshalls ExportRequest from proto bytes.
func (ms ExportRequest) UnmarshalProto(data []byte) error {
return ms.orig.Unmarshal(data)
}
// MarshalJSON marshals ExportRequest into JSON bytes.
func (ms ExportRequest) MarshalJSON() ([]byte, error) {
var buf bytes.Buffer
if err := json.Marshal(&buf, ms.orig); err != nil {
return nil, err
}
return buf.Bytes(), nil
}
// UnmarshalJSON unmarshalls ExportRequest from JSON bytes.
func (ms ExportRequest) UnmarshalJSON(data []byte) error {
md, err := jsonUnmarshaler.UnmarshalMetrics(data)
if err != nil {
return err
}
*ms.orig = *internal.GetOrigMetrics(internal.Metrics(md))
return nil
}
func (ms ExportRequest) Metrics() pmetric.Metrics {
return pmetric.Metrics(internal.NewMetrics(ms.orig, ms.state))
}