forked from hyperledger-archives/burrow
/
eris_format_logger.go
53 lines (44 loc) · 1.72 KB
/
eris_format_logger.go
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// Copyright 2017 Monax Industries Limited
//
// 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 loggers
import (
"fmt"
"github.com/hyperledger/burrow/logging/structure"
kitlog "github.com/go-kit/kit/log"
)
// Logger that implements some formatting conventions for burrow and burrow-client
// This is intended for applying consistent value formatting before the final 'output' logger;
// we should avoid prematurely formatting values here if it is useful to let the output logger
// decide how it wants to display values. Ideal candidates for 'early' formatting here are types that
// we control and generic output loggers are unlikely to know about.
type burrowFormatLogger struct {
logger kitlog.Logger
}
var _ kitlog.Logger = &burrowFormatLogger{}
func (efl *burrowFormatLogger) Log(keyvals ...interface{}) error {
return efl.logger.Log(structure.MapKeyValues(keyvals, burrowFormatKeyValueMapper)...)
}
func burrowFormatKeyValueMapper(key, value interface{}) (interface{}, interface{}) {
switch key {
default:
switch v := value.(type) {
case []byte:
return key, fmt.Sprintf("%X", v)
}
}
return key, value
}
func MonaxFormatLogger(logger kitlog.Logger) *burrowFormatLogger {
return &burrowFormatLogger{logger: logger}
}