/
config.go
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/
config.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 filestorage // import "github.com/open-telemetry/opentelemetry-collector-contrib/extension/storage/filestorage"
import (
"errors"
"fmt"
"io/fs"
"os"
"time"
"go.opentelemetry.io/collector/config"
)
// Config defines configuration for http forwarder extension.
type Config struct {
config.ExtensionSettings `mapstructure:",squash"`
Directory string `mapstructure:"directory,omitempty"`
Timeout time.Duration `mapstructure:"timeout,omitempty"`
Compaction *CompactionConfig `mapstructure:"compaction,omitempty"`
}
type CompactionConfig struct {
OnStart bool `mapstructure:"on_start,omitempty"`
Directory string `mapstructure:"directory,omitempty"`
MaxTransactionSize int64 `mapstructure:"max_transaction_size,omitempty"`
}
func (cfg *Config) Validate() error {
var dirs []string
if cfg.Compaction.OnStart {
dirs = []string{cfg.Directory, cfg.Compaction.Directory}
} else {
dirs = []string{cfg.Directory}
}
for _, dir := range dirs {
info, err := os.Stat(dir)
if err != nil {
if os.IsNotExist(err) {
return fmt.Errorf("directory must exist: %v", err)
}
if fsErr, ok := err.(*fs.PathError); ok {
return fmt.Errorf(
"problem accessing configured directory: %s, err: %v",
dir, fsErr,
)
}
}
if !info.IsDir() {
return fmt.Errorf("%s is not a directory", dir)
}
}
if cfg.Compaction.MaxTransactionSize < 0 {
return errors.New("max transaction size for compaction cannot be less than 0")
}
return nil
}