*
   * <p><b>Note:</b> the values of the metrics are undefined in case of overflow (though it is
   * guaranteed not to throw an exception). If you require specific handling, we recommend
   * implementing your own stats collector.
   */
  public long requestCount() {
    return saturatedAdd(hitCount, missCount);
  }

///

With that you can connect the WebSocket and then send and receive messages:

<img src="/img/tutorial/websockets/image05.png">

## Handling disconnections and multiple clients { #handling-disconnections-and-multiple-clients }

如果你刚开始使用 **FastAPI**，可以先跳过本节。

///

## 使用场景 { #use-cases }

一些使用场景包括：

* 将非 JSON 的请求体转换为 JSON（例如 [`msgpack`](https://msgpack.org/index.html)）。
* 解压缩使用 gzip 压缩的请求体。
* 自动记录所有请求体日志。

## 处理自定义请求体编码 { #handling-custom-request-body-encodings }

来看如何用自定义的 `Request` 子类来解压 gzip 请求。

以及一个 `APIRoute` 子类来使用该自定义请求类。

### 创建自定义 `GzipRequest` 类 { #create-a-custom-gziprequest-class }

/// tip | 提示

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.core.timer;

/**
 * This is an interface for handling timeouts.
 *
 * @author higa
 *
 */
@FunctionalInterface
public interface TimeoutTarget {

    /**
     * Describes the processing for a timeout.
     */
    void expired();

            .named(parentBuilder.getName() + " [Map]")
            .suppressing(parentBuilder.getSuppressedTests())
            .suppressing(SetCreationTester.class.getMethods())
            // BiMap.entrySet() duplicate-handling behavior is too confusing for SetCreationTester
            .withSetUp(parentBuilder.getSetUp())
            .withTearDown(parentBuilder.getTearDown())
            .createTestSuite());
    /*

        return this;
    }

    /**
     * Connects to the URL and executes the request.
     *
     * @param actionListener the action listener for handling the response
     * @param exceptionListener the exception listener for handling exceptions
     */
    public void connect(final Consumer<HttpURLConnection> actionListener, final Consumer<Exception> exceptionListener) {
        final Runnable task = () -> {

import org.codelibs.fess.app.web.admin.dict.mapping.DownloadForm;

/**
 * Download body for mapping dictionary API operations.
 * This class extends the DownloadForm to provide request body handling
 * for downloading mapping dictionaries via REST API.
 *
 */
public class DownloadBody extends DownloadForm {

    /**
     * Default constructor.
     */
    public DownloadBody() {
        super();

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.artifact.repository.metadata;

/**
 * Assists in handling repository metadata.
 *
 */
@Deprecated
class MetadataUtils {

    public static Metadata cloneMetadata(Metadata src) {
        if (src == null) {
            return null;
        }

 * limitations under the License.
 */
package okhttp3.dnsoverhttps

import java.net.InetAddress
import java.net.UnknownHostException
import okhttp3.Dns

/**
 * Internal Bootstrap DNS implementation for handling initial connection to DNS over HTTPS server.
 *
 * Returns hardcoded results for the known host.
 */
internal class BootstrapDns(
  private val dnsHostname: String,
  private val dnsServers: List<InetAddress>,

        assertNotNull(result);
        assertTrue(result.contains("3 documents"));
        // queryBuilder field is protected, so we can't directly assert it
    }

    // Test execute() method with exception handling
    @Test
    public void test_execute_withException() {
        // Register a mock that throws exception
        SearchEngineClient exceptionClient = new SearchEngineClient() {
            @Override