76 lines
2.0 KiB
Go
76 lines
2.0 KiB
Go
// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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package connector // import "go.opentelemetry.io/collector/connector"
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import (
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"fmt"
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"go.uber.org/multierr"
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"go.opentelemetry.io/collector/component"
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"go.opentelemetry.io/collector/consumer"
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"go.opentelemetry.io/collector/internal/fanoutconsumer"
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)
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// Deprecated: [v0.92.0] use MetricsRouterAndConsumer.
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type MetricsRouter interface {
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Consumer(...component.ID) (consumer.Metrics, error)
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PipelineIDs() []component.ID
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}
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// MetricsRouterAndConsumer feeds the first consumer.Metrics in each of the specified pipelines.
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type MetricsRouterAndConsumer interface {
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consumer.Metrics
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Consumer(...component.ID) (consumer.Metrics, error)
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PipelineIDs() []component.ID
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privateFunc()
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}
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type metricsRouter struct {
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consumer.Metrics
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consumers map[component.ID]consumer.Metrics
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}
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func NewMetricsRouter(cm map[component.ID]consumer.Metrics) MetricsRouterAndConsumer {
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consumers := make([]consumer.Metrics, 0, len(cm))
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for _, cons := range cm {
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consumers = append(consumers, cons)
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}
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return &metricsRouter{
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Metrics: fanoutconsumer.NewMetrics(consumers),
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consumers: cm,
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}
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}
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func (r *metricsRouter) PipelineIDs() []component.ID {
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ids := make([]component.ID, 0, len(r.consumers))
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for id := range r.consumers {
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ids = append(ids, id)
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}
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return ids
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}
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func (r *metricsRouter) Consumer(pipelineIDs ...component.ID) (consumer.Metrics, error) {
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if len(pipelineIDs) == 0 {
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return nil, fmt.Errorf("missing consumers")
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}
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consumers := make([]consumer.Metrics, 0, len(pipelineIDs))
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var errors error
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for _, pipelineID := range pipelineIDs {
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c, ok := r.consumers[pipelineID]
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if ok {
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consumers = append(consumers, c)
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} else {
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errors = multierr.Append(errors, fmt.Errorf("missing consumer: %q", pipelineID))
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}
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}
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if errors != nil {
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// TODO potentially this could return a NewMetrics with the valid consumers
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return nil, errors
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}
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return fanoutconsumer.NewMetrics(consumers), nil
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}
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func (r *metricsRouter) privateFunc() {}
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