// input to list only active batch jobs of 'jobType'
func (a adminAPIHandlers) ListBatchJobs(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.ListBatchJobsAction)
	if objectAPI == nil {
		return
	}

	jobType := r.Form.Get("jobType")

	resultCh := make(chan itemOrErr[ObjectInfo])

				return
			}
		case "jid":
			z.JobID, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "JobID")
				return
			}
		case "jt":
			z.JobType, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "JobType")
				return
			}
		case "st":
			z.StartTime, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "StartTime")
				return
			}

func (r *BatchJobKeyRotateV1) Start(ctx context.Context, api ObjectLayer, job BatchJobRequest) error {
	ri := &batchJobInfo{
		JobID:     job.ID,
		JobType:   string(job.Type()),
		StartTime: job.Started,
	}
	if err := ri.loadOrInit(ctx, api, job); err != nil {
		return err
	}
	if ri.Complete {
		return nil
	}

// Start the batch expiration job, resumes if there was a pending job via "job.ID"
func (r *BatchJobExpire) Start(ctx context.Context, api ObjectLayer, job BatchJobRequest) error {
	ri := &batchJobInfo{
		JobID:     job.ID,
		JobType:   string(job.Type()),
		StartTime: job.Started,
	}
	if err := ri.loadOrInit(ctx, api, job); err != nil {
		return err
	}

	globalBatchJobsMetrics.save(job.ID, ri)
	lastObject := ri.Object

		if m.Aggregated.BatchJobs == nil {
			return
		}

		for _, mj := range m.Aggregated.BatchJobs.Jobs {
			jtype := toSnake(mj.JobType)
			var objects, objectsFailed float64
			var bucket string
			switch madmin.BatchJobType(mj.JobType) {
			case madmin.BatchJobReplicate:
				objects = float64(mj.Replicate.Objects)
				objectsFailed = float64(mj.Replicate.ObjectsFailed)