forked from open-telemetry/opentelemetry-go
/
env.go
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/
env.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 trace // import "go.opentelemetry.io/otel/sdk/trace"
import (
"os"
"strconv"
"go.opentelemetry.io/otel/internal/global"
)
// Environment variable names
const (
// EnvBatchSpanProcessorScheduleDelay
// Delay interval between two consecutive exports.
// i.e. 5000
EnvBatchSpanProcessorScheduleDelay = "OTEL_BSP_SCHEDULE_DELAY"
// EnvBatchSpanProcessorExportTimeout
// Maximum allowed time to export data.
// i.e. 3000
EnvBatchSpanProcessorExportTimeout = "OTEL_BSP_EXPORT_TIMEOUT"
// EnvBatchSpanProcessorMaxQueueSize
// Maximum queue size
// i.e. 2048
EnvBatchSpanProcessorMaxQueueSize = "OTEL_BSP_MAX_QUEUE_SIZE"
// EnvBatchSpanProcessorMaxExportBatchSize
// Maximum batch size
// Note: Must be less than or equal to EnvBatchSpanProcessorMaxQueueSize
// i.e. 512
EnvBatchSpanProcessorMaxExportBatchSize = "OTEL_BSP_MAX_EXPORT_BATCH_SIZE"
)
// intEnvOr returns an env variable's numeric value if it is exists (and valid) or the default if not
func intEnvOr(key string, defaultValue int) int {
value, ok := os.LookupEnv(key)
if !ok {
return defaultValue
}
intValue, err := strconv.Atoi(value)
if err != nil {
global.Info("Got invalid value, number value expected.", key, value)
return defaultValue
}
return intValue
}