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//
// Copyright (c) 2015-2024 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
package madmin
import (
"context"
"encoding/json"
"net/http"
"net/url"
"strings"
)
// BandwidthDetails for the measured bandwidth
type BandwidthDetails struct {
LimitInBytesPerSecond int64 `json:"limitInBits"`
CurrentBandwidthInBytesPerSecond float64 `json:"currentBandwidth"`
}
// BucketBandwidthReport captures the details for all buckets.
type BucketBandwidthReport struct {
BucketStats map[string]BandwidthDetails `json:"bucketStats,omitempty"`
}
// Report includes the bandwidth report or the error encountered.
type Report struct {
Report BucketBandwidthReport `json:"report"`
Err error `json:"error,omitempty"`
}
// GetBucketBandwidth - Gets a channel reporting bandwidth measurements for replication buckets. If no buckets
// generate replication traffic an empty map is returned in the report until traffic is seen.
func (adm *AdminClient) GetBucketBandwidth(ctx context.Context, buckets ...string) <-chan Report {
queryValues := url.Values{}
ch := make(chan Report)
if len(buckets) > 0 {
queryValues.Set("buckets", strings.Join(buckets, ","))
}
reqData := requestData{
relPath: adminAPIPrefix + "/bandwidth",
queryValues: queryValues,
}
resp, err := adm.executeMethod(ctx, http.MethodGet, reqData)
if err != nil {
defer closeResponse(resp)
ch <- Report{Err: err}
return ch
}
if resp.StatusCode != http.StatusOK {
ch <- Report{Err: httpRespToErrorResponse(resp)}
return ch
}
dec := json.NewDecoder(resp.Body)
go func(ctx context.Context, ch chan<- Report, resp *http.Response) {
defer func() {
closeResponse(resp)
close(ch)
}()
for {
var report BucketBandwidthReport
if err = dec.Decode(&report); err != nil {
ch <- Report{Err: err}
return
}
select {
case <-ctx.Done():
return
case ch <- Report{Report: report}:
}
}
}(ctx, ch, resp)
return ch
}
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