/
context.go
49 lines (40 loc) · 1.27 KB
/
context.go
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// Copyright © 2016 Asteris, LLC
//
// 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 (
"github.com/Sirupsen/logrus"
"golang.org/x/net/context"
)
var loggerKey = struct{}{}
// WithLogger sets a logger on a context
func WithLogger(ctx context.Context, logger interface{}) context.Context {
switch t := logger.(type) {
case *logrus.Logger:
return context.WithValue(ctx, loggerKey, logrus.NewEntry(t))
case *logrus.Entry:
return context.WithValue(ctx, loggerKey, t)
default:
return ctx
}
}
// GetLogger retrieves a logging context context
func GetLogger(ctx context.Context) *logrus.Entry {
val := ctx.Value(loggerKey)
if val != nil {
if entry, ok := val.(*logrus.Entry); ok {
return entry
}
}
return logrus.WithFields(logrus.Fields{})
}