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factory.go
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factory.go
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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
//go:generate mdatagen metadata.yaml
package routingprocessor // import "github.com/open-telemetry/opentelemetry-collector-contrib/processor/routingprocessor"
import (
"context"
"go.opentelemetry.io/collector/component"
"go.opentelemetry.io/collector/consumer"
"go.opentelemetry.io/collector/processor"
"go.uber.org/zap"
"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/ottl"
"github.com/open-telemetry/opentelemetry-collector-contrib/processor/routingprocessor/internal/metadata"
)
const (
scopeName = "github.com/open-telemetry/opentelemetry-collector-contrib/processor/routingprocessor"
nameSep = "/"
processorKey = "processor"
metricSep = "_"
nonRoutedSpansKey = "non_routed_spans"
nonRoutedMetricPointsKey = "non_routed_metric_points"
nonRoutedLogRecordsKey = "non_routed_log_records"
)
// NewFactory creates a factory for the routing processor.
func NewFactory() processor.Factory {
return processor.NewFactory(
metadata.Type,
createDefaultConfig,
processor.WithTraces(createTracesProcessor, metadata.TracesStability),
processor.WithMetrics(createMetricsProcessor, metadata.MetricsStability),
processor.WithLogs(createLogsProcessor, metadata.LogsStability),
)
}
func createDefaultConfig() component.Config {
return &Config{
AttributeSource: defaultAttributeSource,
ErrorMode: ottl.PropagateError,
}
}
func createTracesProcessor(_ context.Context, params processor.CreateSettings, cfg component.Config, nextConsumer consumer.Traces) (processor.Traces, error) {
warnIfNotLastInPipeline(nextConsumer, params.Logger)
return newTracesProcessor(params.TelemetrySettings, cfg)
}
func createMetricsProcessor(_ context.Context, params processor.CreateSettings, cfg component.Config, nextConsumer consumer.Metrics) (processor.Metrics, error) {
warnIfNotLastInPipeline(nextConsumer, params.Logger)
return newMetricProcessor(params.TelemetrySettings, cfg)
}
func createLogsProcessor(_ context.Context, params processor.CreateSettings, cfg component.Config, nextConsumer consumer.Logs) (processor.Logs, error) {
warnIfNotLastInPipeline(nextConsumer, params.Logger)
return newLogProcessor(params.TelemetrySettings, cfg)
}
func warnIfNotLastInPipeline(nextConsumer any, logger *zap.Logger) {
_, ok := nextConsumer.(component.Component)
if ok {
logger.Warn("another processor has been defined after the routing processor: it will NOT receive any data!")
}
}