* <p>For example, an XML escaper would convert the literal string {@code "Foo<Bar>"} into {@code
 * "Foo&lt;Bar&gt;"} to prevent {@code "<Bar>"} from being confused with an XML tag. When the
 * resulting XML document is parsed, the parser API will return this text as the original literal
 * string {@code "Foo<Bar>"}.
 *
 * <p>A {@code CharEscaper} instance is required to be stateless, and safe when used concurrently by
 * multiple threads.
 *

# WebSockets { #websockets }

你可以在 **FastAPI** 中使用 [WebSockets](https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API)。

## 安裝 `websockets` { #install-websockets }

請先建立[虛擬環境](../virtual-environments.md)、啟用它，然後安裝 `websockets`（一個讓你更容易使用「WebSocket」通訊協定的 Python 套件）：

<div class="termy">

```console
$ pip install websockets

---> 100%
```

</div>

## WebSockets 用戶端 { #websockets-client }

	policy, _, err := globalBucketMetadataSys.GetPolicyConfig(bucket)
	return policy, err
}

// IsAllowed - checks given policy args is allowed to continue the Rest API.
func (sys *PolicySys) IsAllowed(args policy.BucketPolicyArgs) bool {
	p, err := sys.Get(args.BucketName)
	if err == nil {
		return p.IsAllowed(args)
	}

	// Log unhandled errors.

```


## Adding Microbenchmarks

Before adding a new microbenchmark, make yourself familiar with the JMH API. You can check our existing microbenchmarks and also the
[JMH samples](http://hg.openjdk.java.net/code-tools/jmh/file/tip/jmh-samples/src/main/java/org/openjdk/jmh/samples/).

import org.codelibs.fess.opensearch.config.exentity.CrawlingInfoParam;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInfo;

public class CrawlingInfoHelperTest extends UnitFessTestCase {
    private CrawlingInfoHelper crawlingInfoHelper;

    @Override
    protected void setUp(TestInfo testInfo) throws Exception {

import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInfo;

public class PurgeLogJobTest extends UnitFessTestCase {

    private PurgeLogJob purgeLogJob;

    @Override
    protected void setUp(TestInfo testInfo) throws Exception {

 * specific language governing permissions and limitations
 * under the License.
 */
package org.fusesource.jansi;

import java.util.ArrayList;

/**
 * Provides a fluent API for generating
 * <a href="https://en.wikipedia.org/wiki/ANSI_escape_code#CSI_sequences">ANSI escape sequences</a>.
 *
 * This class comes from Jansi and is provided for backward compatibility

{* ../../docs_src/response_model/tutorial002_py310.py hl[16] *}

Ahora, cada vez que un navegador esté creando un usuario con una contraseña, la API devolverá la misma contraseña en el response.

En este caso, podría no ser un problema, porque es el mismo usuario que envía la contraseña.

   * This is not the same definition used by other Java APIs. (See a <a
   * href="https://docs.google.com/spreadsheets/d/1kq4ECwPjHX9B8QUCTPclgsDCXYaj7T-FlT4tB5q3ahk/edit">comparison
   * of several definitions of "whitespace"</a>.)
   *
   * <p>All Unicode White_Space characters are on the BMP and thus supported by this API.
   *

import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.crawler.Constants;
import org.codelibs.fess.exception.StorageException;

import com.google.api.gax.paging.Page;
import com.google.auth.oauth2.GoogleCredentials;
import com.google.cloud.NoCredentials;
import com.google.cloud.storage.Blob;
import com.google.cloud.storage.BlobId;
import com.google.cloud.storage.BlobInfo;