110 lines
3.0 KiB
Go
110 lines
3.0 KiB
Go
// Copyright 2019, OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package loggingexporter
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import (
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"context"
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"go.uber.org/zap"
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"go.uber.org/zap/zapcore"
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"go.opentelemetry.io/collector/component"
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"go.opentelemetry.io/collector/config/configmodels"
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)
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const (
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// The value of "type" key in configuration.
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typeStr = "logging"
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defaultSamplingInitial = 2
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defaultSamplingThereafter = 500
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)
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// Factory is the factory for logging exporter.
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type Factory struct {
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}
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// Type gets the type of the Exporter config created by this factory.
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func (f *Factory) Type() configmodels.Type {
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return typeStr
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}
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// CreateDefaultConfig creates the default configuration for exporter.
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func (f *Factory) CreateDefaultConfig() configmodels.Exporter {
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return &Config{
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ExporterSettings: configmodels.ExporterSettings{
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TypeVal: typeStr,
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NameVal: typeStr,
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},
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LogLevel: "info",
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SamplingInitial: defaultSamplingInitial,
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SamplingThereafter: defaultSamplingThereafter,
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}
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}
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// CreateTraceExporter creates a trace exporter based on this config.
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func (f *Factory) CreateTraceExporter(_ context.Context, _ component.ExporterCreateParams, config configmodels.Exporter) (component.TraceExporter, error) {
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cfg := config.(*Config)
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exporterLogger, err := f.createLogger(cfg)
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if err != nil {
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return nil, err
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}
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lexp, err := NewTraceExporter(config, cfg.LogLevel, exporterLogger)
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if err != nil {
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return nil, err
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}
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return lexp, nil
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}
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func (f *Factory) createLogger(cfg *Config) (*zap.Logger, error) {
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var level zapcore.Level
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err := (&level).UnmarshalText([]byte(cfg.LogLevel))
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if err != nil {
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return nil, err
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}
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// We take development config as the base since it matches the purpose
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// of logging exporter being used for debugging reasons (so e.g. console encoder)
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conf := zap.NewDevelopmentConfig()
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conf.Level = zap.NewAtomicLevelAt(level)
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conf.Sampling = &zap.SamplingConfig{
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Initial: cfg.SamplingInitial,
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Thereafter: cfg.SamplingThereafter,
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}
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logginglogger, err := conf.Build()
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if err != nil {
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return nil, err
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}
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return logginglogger, nil
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}
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// CreateMetricsExporter creates a metrics exporter based on this config.
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func (f *Factory) CreateMetricsExporter(_ context.Context, _ component.ExporterCreateParams, config configmodels.Exporter) (component.MetricsExporter, error) {
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cfg := config.(*Config)
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exporterLogger, err := f.createLogger(cfg)
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if err != nil {
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return nil, err
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}
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lexp, err := NewMetricsExporter(config, cfg.LogLevel, exporterLogger)
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if err != nil {
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return nil, err
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}
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return lexp, nil
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}
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