forked from hyperledger-archives/burrow
/
convert.go
84 lines (76 loc) · 2.44 KB
/
convert.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 adapters
import (
"time"
"github.com/go-stack/stack"
"github.com/hyperledger/burrow/logging/loggers"
"github.com/hyperledger/burrow/logging/structure"
. "github.com/hyperledger/burrow/util/slice"
"github.com/tendermint/log15"
)
// Convert a go-kit log line (i.e. keyvals... interface{}) into a log15 record
// This allows us to use log15 output handlers
func LogLineToRecord(keyvals ...interface{}) *log15.Record {
vals, ctx := structure.ValuesAndContext(keyvals, structure.TimeKey,
structure.MessageKey, structure.CallerKey, structure.LevelKey)
// Mapping of log line to Record is on a best effort basis
theTime, _ := vals[structure.TimeKey].(time.Time)
call, _ := vals[structure.CallerKey].(stack.Call)
level, _ := vals[structure.LevelKey].(string)
message, _ := vals[structure.MessageKey].(string)
return &log15.Record{
Time: theTime,
Lvl: Log15LvlFromString(level),
Msg: message,
Call: call,
Ctx: ctx,
KeyNames: log15.RecordKeyNames{
Time: structure.TimeKey,
Msg: structure.MessageKey,
Lvl: structure.LevelKey,
}}
}
// Convert a log15 record to a go-kit log line (i.e. keyvals... interface{})
// This allows us to capture output from dependencies using log15
func RecordToLogLine(record *log15.Record) []interface{} {
return Concat(
Slice(
structure.TimeKey, record.Time,
structure.CallerKey, record.Call,
structure.LevelKey, record.Lvl.String(),
),
record.Ctx,
Slice(
structure.MessageKey, record.Msg,
))
}
// Collapse our weak notion of leveling and log15's into a log15.Lvl
func Log15LvlFromString(level string) log15.Lvl {
if level == "" {
return log15.LvlDebug
}
switch level {
case loggers.InfoLevelName:
return log15.LvlInfo
case loggers.TraceLevelName:
return log15.LvlDebug
default:
lvl, err := log15.LvlFromString(level)
if err == nil {
return lvl
}
return log15.LvlDebug
}
}