@Override
            public void setExtendedSecurity(boolean extendedSecurity) {
                // Implementation
            }

            @Override
            public void setSessionId(long sessionId) {
                // Implementation
            }

            @Override
            public void setRawPayload(byte[] rawPayload) {
                // Implementation for raw payload
            }

        // Message ID
        SMBUtil.writeInt8(1, buffer, headerStart + 24);
        // Reserved/Async ID
        SMBUtil.writeInt8(0, buffer, headerStart + 32);
        // Session ID
        SMBUtil.writeInt8(0, buffer, headerStart + 40);
        // Signature
        Arrays.fill(buffer, headerStart + 48, headerStart + 64, (byte) 0);

        // Write READ response body

```
Spark context Web UI available at http://172.26.236.247:4041
Spark context available as 'sc' (master = yarn, app id = application_1490217230866_0002).
Spark session available as 'spark'.
Welcome to


      ____              __
     / __/__  ___ _____/ /__
    _\ \/ _ \/ _ `/ __/  '_/
   /___/ .__/\_,_/_/ /_/\_\   version 2.1.0.2.6.0.0-598
      /_/

        @Test
        @DisplayName("Test set request credits")
        void testSetRequestCredits() {
            testBlock.setRequestCredits(10);
        }

        @Test
        @DisplayName("Test set session ID")
        void testSetSessionId() {
            testBlock.setSessionId(123456L);
        }
    }

    @Nested
    @DisplayName("String Handling Tests")
    class StringHandlingTests {

                } else {
                    dc = nameServiceClient.getByName(server, possibleWorkgroup);
                }

                req.getSession(); /* ensure session id is set for cluster env. */
                challenge = getTransportContext().getTransportPool().getChallenge(getTransportContext(), dc);

    try {
        super.close();
    } finally {
        // Don't release directory lease on close - it may be shared
        // Lease will be cleaned up by the lease manager
    }
}
```

### 5.2 Session Integration
```java
// In SmbSession.java
private DirectoryLeaseManager directoryLeaseManager;

public void initializeDirectoryLeasing() {
    if (context.getConfig().isUseDirectoryLeasing() && supports(SMB3_0)) {

        request.setUserToolchainsFile(userToolchainsFile != null ? userToolchainsFile.toFile() : null);

        ToolchainsBuilderRequest toolchainsRequest = ToolchainsBuilderRequest.builder()
                .session(context.protoSession)
                .installationToolchainsSource(
                        installationToolchainsFile != null && Files.isRegularFile(installationToolchainsFile)

                call: Call,
                connection: Connection,
              ) {
                val sslSocket = connection.socket() as SSLSocket

                sessionIds.add(
                  sslSocket.session.id
                    .toByteString()
                    .hex(),
                )
              }
            },
          ),
        ).build()

    server.enqueue(MockResponse(body = "abc1"))

* 更进阶（但同样简单）的技巧来声明 **多层嵌套 JSON 模型** （借助 Pydantic）。
* 许多额外功能（归功于 Starlette）比如：
    * **WebSockets**
    * **GraphQL**
    * 基于 HTTPX 和 `pytest` 的极其简单的测试
    * **CORS**
    * **Cookie Sessions**
    * ......以及更多

## 性能

    private final AtomicLong usageCount = new AtomicLong(1);

    /**
     * Acquires a reference to this transport, incrementing the usage count.
     *
     * @return session increased usage count
     */
    public Transport acquire() {
        final long usage = this.usageCount.incrementAndGet();
        if (log.isTraceEnabled()) {