mirror of https://github.com/prometheus/prometheus
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
38 lines
1.0 KiB
38 lines
1.0 KiB
// Copyright 2019 The Prometheus 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 logging |
|
|
|
import ( |
|
"github.com/go-kit/kit/log" |
|
"golang.org/x/time/rate" |
|
) |
|
|
|
type ratelimiter struct { |
|
limiter *rate.Limiter |
|
next log.Logger |
|
} |
|
|
|
// RateLimit write to a logger. |
|
func RateLimit(next log.Logger, limit rate.Limit) log.Logger { |
|
return &ratelimiter{ |
|
limiter: rate.NewLimiter(limit, int(limit)), |
|
next: next, |
|
} |
|
} |
|
|
|
func (r *ratelimiter) Log(keyvals ...interface{}) error { |
|
if r.limiter.Allow() { |
|
return r.next.Log(keyvals...) |
|
} |
|
return nil |
|
}
|
|
|