```
...
        "MetaUsr": {
         "X-Amz-Restore-Expiry-Days": "4",
          "X-Amz-Restore-Request-Date": "Mon, 22 Feb 2021 21:10:09 GMT",
          "x-amz-restore": "ongoing-request=false, expiry-date=Sat, 27 Feb 2021 00:00:00 GMT",
...
```

    .Builder()
    .onlyIfCached()
    .maxStale(Int.MAX_VALUE.seconds)
    .build()

internal fun CacheControl.Builder.commonBuild(): CacheControl =
  CacheControl(
    noCache = noCache,
    noStore = noStore,
    maxAgeSeconds = maxAgeSeconds,
    sMaxAgeSeconds = -1,
    isPrivate = false,
    isPublic = false,
    mustRevalidate = false,
    maxStaleSeconds = maxStaleSeconds,
    minFreshSeconds = minFreshSeconds,

  }

  private fun newEmptyKeyStore(keyStoreType: String?): KeyStore =
    KeyStore.getInstance(keyStoreType ?: KeyStore.getDefaultType()).apply {
      val inputStream: InputStream? = null // By convention, 'null' creates an empty key store.
      load(inputStream, password)
    }

    val callbackHandler = ConsoleCallbackHandler

    val builderList: List<KeyStore.Builder> =
      listOf(
        KeyStore.Builder.newInstance("PKCS11", null, KeyStore.CallbackHandlerProtection(callbackHandler)),
        // Example if you want to combine multiple keystore types
        // KeyStore.Builder.newInstance("PKCS12", null, File("keystore.p12"), PasswordProtection("rosebud".toCharArray()))
      )

      CacheControl
        .Builder()
        .noCache()
        .noStore()
        .maxAge(1, TimeUnit.SECONDS)
        .maxStale(2, TimeUnit.SECONDS)
        .minFresh(3, TimeUnit.SECONDS)
        .onlyIfCached()
        .noTransform()
        .immutable()
        .build()
    assertThat(cacheControl.toString()).isEqualTo(
      "no-cache, no-store, max-age=1, max-stale=2, min-fresh=3, only-if-cached, " +

      CacheControl
        .Builder()
        .noCache()
        .noStore()
        .maxAge(1.seconds)
        .maxStale(2.seconds)
        .minFresh(3.seconds)
        .onlyIfCached()
        .noTransform()
        .immutable()
        .build()
    assertThat(cacheControl.toString()).isEqualTo(
      "no-cache, no-store, max-age=1, max-stale=2, min-fresh=3, only-if-cached, no-transform, immutable",
    )

- [Use `aws-cli` with MinIO Server](https://docs.min.io/community/minio-object-store/integrations/aws-cli-with-minio.html)
- [Use `minio-go` SDK with MinIO Server](https://docs.min.io/community/minio-object-store/developers/go/minio-go.html)

```
aws s3api restore-object --bucket srcbucket \
--key object \
--restore-request Days=3
```

### 4.1 Monitoring transition events

## Prerequisites

- One or both of Veeam Backup and Replication with support for S3 compatible object store (e.g. 9.5.4) and Veeam Backup for Office365 (VBO)
- MinIO object storage set up per <https://docs.min.io/community/minio-object-store/index.html>

 * [okhttp-stats](https://github.com/flipkart-incubator/okhttp-stats): Get stats like average network speed.
 * [okhttp-system-keystore](https://github.com/charleskorn/okhttp-system-keystore): Use trusted certificates from the operating system keystore (Keychain on macOS, Certificate Store on Windows).
 * ⬜️ [Okio](https://github.com/square/okio/): A modern I/O API for Java.