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factory.go
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factory.go
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// 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 cumulativetodeltaprocessor
import (
"context"
"fmt"
"go.opentelemetry.io/collector/component"
"go.opentelemetry.io/collector/config"
"go.opentelemetry.io/collector/consumer"
"go.opentelemetry.io/collector/processor/processorhelper"
)
const (
// The value of "type" key in configuration.
typeStr = "cumulativetodelta"
)
var processorCapabilities = consumer.Capabilities{MutatesData: true}
// NewFactory returns a new factory for the Metrics Generation processor.
func NewFactory() component.ProcessorFactory {
return processorhelper.NewFactory(
typeStr,
createDefaultConfig,
processorhelper.WithMetrics(createMetricsProcessor))
}
func createDefaultConfig() config.Processor {
return &Config{
ProcessorSettings: config.NewProcessorSettings(config.NewID(typeStr)),
MonotonicOnly: true,
}
}
func createMetricsProcessor(
_ context.Context,
params component.ProcessorCreateSettings,
cfg config.Processor,
nextConsumer consumer.Metrics,
) (component.MetricsProcessor, error) {
processorConfig, ok := cfg.(*Config)
if !ok {
return nil, fmt.Errorf("configuration parsing error")
}
metricsProcessor := newCumulativeToDeltaProcessor(processorConfig, params.Logger)
return processorhelper.NewMetricsProcessor(
cfg,
nextConsumer,
metricsProcessor.processMetrics,
processorhelper.WithCapabilities(processorCapabilities))
}