// A scriptedReader is an io.Reader that executes its steps sequentially.
type scriptedReader []func(p []byte) (n int, err error)

func (sr *scriptedReader) Read(p []byte) (n int, err error) {
	if len(*sr) == 0 {
		panic("too many Read calls on scripted Reader. No steps remain.")
	}
	step := (*sr)[0]
	*sr = (*sr)[1:]
	return step(p)
}

func newScriptedReader(steps ...func(p []byte) (n int, err error)) io.Reader {

     * #COMPLETED}, {@link #CANCELLED}, or {@link #INTERRUPTED}
     *
     * <p>To avoid races between threads doing release and acquire, we transition to the final state
     * in two steps. One thread will successfully CAS from RUNNING to COMPLETING, that thread will
     * then set the result of the computation, and only then transition to COMPLETED, CANCELLED, or
     * INTERRUPTED.
     *

    assertEquals(68, (int) mmHeap.peek());
    assertEquals(0, (int) mmHeap.peekLast());
  }

  private <T extends Comparable<T>> void runIterator(List<T> values, int steps) throws Exception {
    IteratorTester<T> tester =
        new IteratorTester<T>(
            steps,
            IteratorFeature.MODIFIABLE,
            new LinkedList<>(values),
            IteratorTester.KnownOrder.UNKNOWN_ORDER) {

Follow these steps to run the Spark Pi example:

- Login as user **‘spark’**.
- When the job runs, the library can now use **MinIO** during intermediate processing.

{* ../../docs_src/security/tutorial005_an_py310.py hl[5,9,13,47,65,106,108:116,122:126,130:136,141,157] *}

Now let's review those changes step by step.

## OAuth2 Security scheme { #oauth2-security-scheme }

The first change is that now we are declaring the OAuth2 security scheme with two available scopes, `me` and `items`.

 * {@link CrawlerContainer}, {@link LogHelper}, {@link CrawlerClientFactory}, and {@link CrawlerContext},
 * to perform its tasks.
 * </p>
 *
 * <p>
 * The crawling process involves the following steps:
 * </p>
 * <ol>
 *   <li>Fetching a URL from the queue using {@link UrlQueueService#poll(String)}.</li>
 *   <li>Checking if the URL is valid using {@link #isValid(UrlQueue)}.</li>

kubectl port-forward $POD_NAME 9000 --namespace {{ .Release.Namespace }} Read more about port forwarding here: http://kubernetes.io/docs/user-guide/kubectl/kubectl_port-forward/ You can now access Minio server on http://localhost:9000. Follow the below steps to connect to Minio server with mc client: 1. Download the Minio mc client - https://docs.minio.io/docs/minio-client-quickstart-guide 2. export ACCESS_KEY=$(kubectl get secret {{ template "minio.secretName" . }} -o jsonpath="{.data.rootUser}" | base64...

これは以下のようなことが必要な時にとても便利です:

* ロジックを共有している。（同じコードロジックを何度も繰り返している）。
* データベース接続を共有する。
* セキュリティ、認証、ロール要件などを強制する。
* そのほかにも多くのこと...

これらすべてを、コードの繰り返しを最小限に抑えながら行います。

## 最初のステップ { #first-steps }

非常にシンプルな例を見てみましょう。あまりにもシンプルなので、今のところはあまり参考にならないでしょう。

しかし、この方法では **Dependency Injection** システムがどのように機能するかに焦点を当てることができます。

### 依存関係（「dependable」）の作成 { #create-a-dependency-or-dependable }

まずは依存関係に注目してみましょう。

    transition: all 0.3s ease;
}

.progress-step .step-icon i {
    font-size: 0.875rem;
    color: #6b778c;
}

.progress-step.active .step-icon {
    background-color: #0052cc;
    animation: step-pulse 1.5s ease-in-out infinite;
}

.progress-step.active .step-icon i {
    color: white;
}

.progress-step.completed .step-icon {
    background-color: #00875a;
}

The steps below show how to use this notification target in `namespace` format. The other format is very similar and is omitted for brevity.

### Step 1: Ensure Elasticsearch minimum requirements are met