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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
//
// https://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 logstransformprocessor // import "github.com/open-telemetry/opentelemetry-collector-contrib/processor/logstransformprocessor"
import (
"context"
"errors"
"go.opentelemetry.io/collector/component"
"go.opentelemetry.io/collector/consumer"
"go.opentelemetry.io/collector/processor"
"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/stanza/adapter"
"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/stanza/operator"
)
const (
// The value of "type" key in configuration.
typeStr = "logstransform"
// The stability level of the processor.
stability = component.StabilityLevelDevelopment
)
var processorCapabilities = consumer.Capabilities{MutatesData: true}
// NewFactory returns a new factory for the Logs Transform processor.
func NewFactory() processor.Factory {
return processor.NewFactory(
typeStr,
createDefaultConfig,
processor.WithLogs(createLogsProcessor, stability))
}
// Note: This isn't a valid configuration because the processor would do no work.
func createDefaultConfig() component.Config {
return &Config{
BaseConfig: adapter.BaseConfig{
Operators: []operator.Config{},
},
}
}
func createLogsProcessor(
ctx context.Context,
set processor.CreateSettings,
cfg component.Config,
nextConsumer consumer.Logs) (processor.Logs, error) {
pCfg, ok := cfg.(*Config)
if !ok {
return nil, errors.New("could not initialize logs transform processor")
}
if len(pCfg.BaseConfig.Operators) == 0 {
return nil, errors.New("no operators were configured for this logs transform processor")
}
return newProcessor(pCfg, nextConsumer, set.Logger)
}