forked from flashcat/categraf
79 lines
2.6 KiB
Go
79 lines
2.6 KiB
Go
// Copyright The 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 telemetrylogs // import "go.opentelemetry.io/collector/service/pkg/telemetrylogs"
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import (
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"go.uber.org/zap"
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"go.uber.org/zap/zapcore"
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"go.uber.org/zap/zapgrpc"
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"google.golang.org/grpc/grpclog"
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"go.opentelemetry.io/collector/config"
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)
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func NewLogger(cfg config.ServiceTelemetryLogs, options []zap.Option) (*zap.Logger, error) {
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// Copied from NewProductionConfig.
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zapCfg := &zap.Config{
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Level: zap.NewAtomicLevelAt(cfg.Level),
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Development: cfg.Development,
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Sampling: &zap.SamplingConfig{
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Initial: 100,
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Thereafter: 100,
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},
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Encoding: cfg.Encoding,
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EncoderConfig: zap.NewProductionEncoderConfig(),
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OutputPaths: cfg.OutputPaths,
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ErrorOutputPaths: cfg.ErrorOutputPaths,
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DisableCaller: cfg.DisableCaller,
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DisableStacktrace: cfg.DisableStacktrace,
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InitialFields: cfg.InitialFields,
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}
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if zapCfg.Encoding == "console" {
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// Human-readable timestamps for console format of logs.
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zapCfg.EncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
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}
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logger, err := zapCfg.Build(options...)
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if err != nil {
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return nil, err
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}
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return logger, nil
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}
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// SetColGRPCLogger constructs a zapgrpc.Logger instance, and installs it as grpc logger, cloned from baseLogger with
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// exact configuration. The minimum level of gRPC logs is set to WARN should the loglevel of the collector is set to
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// INFO to avoid copious logging from grpc framework.
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func SetColGRPCLogger(baseLogger *zap.Logger, loglevel zapcore.Level) *zapgrpc.Logger {
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logger := zapgrpc.NewLogger(baseLogger.WithOptions(zap.WrapCore(func(core zapcore.Core) zapcore.Core {
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var c zapcore.Core
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var err error
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if loglevel == zapcore.InfoLevel {
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loglevel = zapcore.WarnLevel
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}
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// NewIncreaseLevelCore errors only if the new log level is less than the initial core level.
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c, err = zapcore.NewIncreaseLevelCore(core, loglevel)
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// In case of an error changing the level, move on, this happens when using the NopCore
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if err != nil {
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c = core
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}
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return c.With([]zapcore.Field{zap.Bool("grpc_log", true)})
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})))
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grpclog.SetLoggerV2(logger)
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return logger
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}
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