"sync"
	"time"
)

// ErrBatchFull indicates that the batch is full
var ErrBatchFull = errors.New("batch is full")

const defaultCommitTimeout = 30 * time.Second

// Batch represents an ordered batch
type Batch[I any] struct {
	items  []I
	limit  uint32
	store  Store[I]
	quitCh chan struct{}

	sync.Mutex
}

// BatchConfig represents the batch config
type BatchConfig[I any] struct {
	Limit         uint32

			// standard metadata headers
			// specified in the filter
			var match bool
			for k, v := range obj.UserDefined {
				if !stringsHasPrefixFold(k, "x-amz-meta-") && !isStandardHeader(k) {
					continue
				}
				// We only need to match x-amz-meta or standardHeaders
				if kv.Match(BatchJobKV{Key: k, Value: v}) {
					match = true
				}
			}
			if !match {
				return false

// flags:
//   filter:
//     newerThan: "7d" # match objects newer than this value (e.g. 7d10h31s)
//     olderThan: "7d" # match objects older than this value (e.g. 7d10h31s)
//     createdAfter: "date" # match objects created after "date"
//     createdBefore: "date" # match objects created before "date"
//     tags:
//       - key: "name"
//         value: "pick*" # match objects with tag 'name', with all values starting with 'pick'

						continue
					}

					batch = append(batch, obj.Item)

					if len(batch) < *r.Source.Snowball.Batch {
						continue
					}
					writeFn(batch)
					batch = batch[:0]
				}
				writeFn(batch)
				xioutil.SafeClose(slowCh)
			}()
		} else {
			slowCh = walkCh
		}

	batchLen := batch.Len()
	if batchLen != int(limit) {
		t.Fatalf("Expected batch.Len() %v; but got %v", limit, batchLen)
	}

	keys := store.List()
	if len(keys) > 0 {
		t.Fatalf("Expected empty store list but got len(list) %v", len(keys))
	}
	if err := batch.Add(testItem); err != nil {
		t.Fatalf("unable to add to the batch; %v", err)
	}
	batchLen = batch.Len()
	if batchLen != 1 {

			return err
		}
	}
	if k.BatchSize > 1 {
		if k.QueueDir == "" {
			return errors.New("batch should be enabled only if queue dir is enabled")
		}
	}
	if k.BatchCommitTimeout > 0 {
		if k.QueueDir == "" || k.BatchSize <= 1 {
			return errors.New("batch commit timeout should be set only if queue dir is enabled and batch size > 1")
		}
	}
	return nil
}

// KafkaTarget - Kafka target.

    private void feedConsumer() {
        final ArrayList<Exchange> batch = new ArrayList<>(batchMaxSize);
        try {
            while (true) {
                batch.clear();
                if (eventQueue.drainTo(batch, BATCH_MAX_SIZE) == 0) {
                    batch.add(eventQueue.take());
                }
                demux(batch);
            }
        } catch (InterruptedException e) {
            throw new RuntimeException(e);

                Arguments.of(true, new String[] {"--force-interactive", "--non-interactive", "--batch-mode"}, false),
                Arguments.of(false, new String[] {"--non-interactive"}, true),
                Arguments.of(false, new String[] {"--batch-mode"}, true),
                Arguments.of(false, new String[] {"--non-interactive", "--batch-mode"}, true));
    }

		} else {
			globalHealConfig.Update(healCfg)
		}
	case config.BatchSubSys:
		batchCfg, err := batch.LookupConfig(s[config.BatchSubSys][config.Default])
		if err != nil {
			errs = append(errs, fmt.Errorf("Unable to apply batch config: %w", err))
		} else {
			globalBatchConfig.Update(batchCfg)
		}
	case config.ScannerSubSys:

		if len(SSES3SinglePartObjects) == 0 {
			for i := range batch {
				size, err := batch[i].GetActualSize()
				if err != nil {
					return err
				}
				batch[i].Size = size

				if _, ok := crypto.IsEncrypted(batch[i].UserDefined); ok {
					ETag, err := etag.Parse(batch[i].ETag)
					if err != nil {
						return err
					}
					batch[i].ETag = ETag.Format().String()
				}
			}