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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: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"
"time"
"go.opentelemetry.io/collector/component"
"go.opentelemetry.io/collector/config"
"go.opentelemetry.io/collector/consumer"
"go.opentelemetry.io/collector/processor/processorhelper"
"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/stanza/adapter"
)
const (
// The value of "type" key in configuration.
typeStr = "logstransform"
)
var processorCapabilities = consumer.Capabilities{MutatesData: true}
// NewFactory returns a new factory for the Logs Transform processor.
func NewFactory() component.ProcessorFactory {
return component.NewProcessorFactory(
typeStr,
createDefaultConfig,
component.WithLogsProcessor(createLogsProcessor))
}
// Note: This isn't a valid configuration because the processor would do no work.
func createDefaultConfig() config.Processor {
return &Config{
ProcessorSettings: config.NewProcessorSettings(config.NewComponentID(typeStr)),
BaseConfig: adapter.BaseConfig{
Operators: adapter.OperatorConfigs{},
Converter: adapter.ConverterConfig{
MaxFlushCount: 100,
FlushInterval: 100 * time.Millisecond,
},
},
}
}
func createLogsProcessor(
_ context.Context,
params component.ProcessorCreateSettings,
cfg config.Processor,
nextConsumer consumer.Logs) (component.LogsProcessor, error) {
pCfg, ok := cfg.(*Config)
if !ok {
return nil, errors.New("could not initialize logs transform processor")
}
operators, err := pCfg.BaseConfig.DecodeOperatorConfigs()
if err != nil {
return nil, err
}
if len(operators) == 0 {
return nil, errors.New("no operators were configured for this logs transform processor")
}
proc := &logsTransformProcessor{
id: cfg.ID(),
logger: params.Logger,
config: pCfg,
}
return processorhelper.NewLogsProcessor(
cfg,
nextConsumer,
proc.processLogs,
processorhelper.WithStart(proc.Start),
processorhelper.WithShutdown(proc.Shutdown),
processorhelper.WithCapabilities(processorCapabilities))
}