err   error
	}{
		{
			input: `<Transition>
			<Days>0</Days>
			<StorageClass>S3TIER-1</StorageClass>
		  </Transition>`,
			err: nil,
		},
		{
			input: `<Transition>
			<Days>1</Days>
			<Date>2021-01-01T00:00:00Z</Date>
			<StorageClass>S3TIER-1</StorageClass>
		  </Transition>`,
			err: errTransitionInvalid,
		},
		{
			input: `<Transition>
			<Days>1</Days>
		  </Transition>`,

package ilm

import "github.com/minio/minio/internal/config"

const (
	transitionWorkers = "transition_workers"
	expirationWorkers = "expiration_workers"
	// EnvILMTransitionWorkers env variable to configure number of transition workers
	EnvILMTransitionWorkers = "MINIO_ILM_TRANSITION_WORKERS"
	// EnvILMExpirationWorkers env variable to configure number of expiration workers
	EnvILMExpirationWorkers = "MINIO_ILM_EXPIRATION_WORKERS"
)

var (

			isDelMarker:    true,
			expectedAction: DeleteVersionAction,
		},
		// Should transition immediately when Transition days is zero
		{
			inputConfig:    `<BucketLifecycleConfiguration><Rule><Filter></Filter><Status>Enabled</Status><Transition><Days>0</Days><StorageClass>S3TIER-1</StorageClass></Transition></Rule></BucketLifecycleConfiguration>`,
			objectName:     "foodir/fooobject",

                  // This means that the state has changed since we were scheduled. This implies
                  // that an execution of runOneIteration has thrown an exception and we have
                  // transitioned to a failed state, also this means that shutDown has already
                  // been called, so we do not want to call it again.
                  return;
                }
                shutDown();

                  // This means that the state has changed since we were scheduled. This implies
                  // that an execution of runOneIteration has thrown an exception and we have
                  // transitioned to a failed state, also this means that shutDown has already
                  // been called, so we do not want to call it again.
                  return;
                }
                shutDown();

		uses   bool
	}{
		{ // transitioned object version
			xlmeta: xlMetaV2Object{
				VersionID: vID,
				DataDir:   dataDir,
				MetaSys:   transitioned,
			},
			uses: false,
		},
		{ // to be restored (requires object version to be transitioned)
			xlmeta: xlMetaV2Object{
				VersionID: vID,
				DataDir:   dataDir,
				MetaSys:   transitioned,
				MetaUser:  toBeRestored,
			},

	} else if sc, ok := fi.Metadata[xhttp.AmzStorageClass]; ok {
		objInfo.StorageClass = sc
	} else {
		objInfo.StorageClass = globalMinioDefaultStorageClass
	}

	// set restore status for transitioned object
	restoreHdr, ok := fi.Metadata[xhttp.AmzRestore]
	if ok {
		if restoreStatus, err := parseRestoreObjStatus(restoreHdr); err == nil {
			objInfo.RestoreOngoing = restoreStatus.Ongoing()

	Filter              Filter              `xml:"Filter,omitempty"`
	Prefix              Prefix              `xml:"Prefix,omitempty"`
	Expiration          Expiration          `xml:"Expiration,omitempty"`
	Transition          Transition          `xml:"Transition,omitempty"`
	DelMarkerExpiration DelMarkerExpiration `xml:"DelMarkerExpiration,omitempty"`

./mc admin tier add minio myminio TIER1 --endpoint http://localhost:9002 --access-key minioadmin --secret-key minioadmin --bucket tiered --prefix prefix5/
./mc ilm add myminio/bucket2 --transition-days 0 --transition-tier TIER1 --transition-days 0

## mirror some content to bucket2 and capture versions tiered
./mc mirror internal myminio/bucket2/ --quiet >/dev/null
./mc ls -r myminio/bucket2/ >bucket2_ns.txt

    }

    @Override
    public boolean isSatisfied() {
      return state().compareTo(TERMINATED) >= 0;
    }
  }

  /** The listeners to notify during a state transition. */
  private final ListenerCallQueue<Listener> listeners = new ListenerCallQueue<>();

  /**
   * The current state of the service. This should be written with the lock held but can be read