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configuration.go
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configuration.go
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// Copyright 2018 Shift Devices AG
//
// 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 logging
import (
"encoding/json"
"github.com/digitalbitbox/bitbox-wallet-app/util/errp"
"github.com/sirupsen/logrus"
)
// Configuration serializes and deserializes the logging parameters.
type Configuration struct {
// Output location of the logger.
// Can be either a path relative to the configuration directory, STDOUT or STDERR.
Output string `json:"output"`
// Level from which on the entries are logged.
Level logrus.Level `json:"level"`
}
// MarshalJSON implements json.Marshaler.
func (configuration Configuration) MarshalJSON() ([]byte, error) {
return json.Marshal(&map[string]string{
"output": configuration.Output,
"level": configuration.Level.String(),
})
}
// UnmarshalJSON implements json.Unmarshaler.
func (configuration *Configuration) UnmarshalJSON(bytes []byte) error {
var encoding map[string]string
if err := json.Unmarshal(bytes, &encoding); err != nil {
return errp.Wrap(err, "Could not unmarshal the logging configuration.")
}
output, found := encoding["output"]
if !found {
return errp.New("The output was not found in the logging configuration.")
}
configuration.Output = output
level, found := encoding["level"]
if !found {
return errp.New("The level was not found in the logging configuration.")
}
var err error
configuration.Level, err = logrus.ParseLevel(level)
if err != nil {
return errp.Wrap(err, "Could not parse the level of the logging configuration.")
}
return nil
}