* all but the first smb of the chaain do not have a header
     * and therefore we do not want to writeHeaderWireFormat. We
     * just recursivly call writeAndXWireFormat.
     */

    @Override
    public int encode(final byte[] dst, int dstIndex) {
        final int start = this.headerStart = dstIndex;

        dstIndex += writeHeaderWireFormat(dst, dstIndex);
        dstIndex += writeAndXWireFormat(dst, dstIndex);

	name string
	// Metadata. If none is present it is not an object but only a prefix.
	// Entries without metadata will only be present in non-recursive scans.
	metadata []byte

	// cached contains the metadata if decoded.
	cached *xlMetaV2

	// Indicates the entry can be reused and only one reference to metadata is expected.
	reusable bool
}

// isDir returns if the entry is representing a prefix directory.

		if err != nil {
			t.Fatalf("Error initializing input HTTP request: %v", err)
		}
		q := inputReq.URL.Query()
		q.Add(testCase.inputQueryKey, testCase.inputQueryValue)
		inputReq.URL.RawQuery = q.Encode()
		inputReq.ParseForm()

		actualResult := isRequestPresignedSignatureV2(inputReq)
		if testCase.expectedResult != actualResult {

        assertEquals(SmbComTransaction.TRANS2_FIND_NEXT2, dst[0], "First byte must be subCommand");
        assertEquals((byte) 0x00, dst[1], "Second byte must be 0");
    }

    /**
     * Validates writeParametersWireFormat encodes values in the correct order and endianness.
     */
    @Test
    void testWriteParametersWireFormat() {
        // Given
        int sid = 0x1234;
        int resumeKey = 0x89ABCDEF; // LE expected: EF CD AB 89

     * Default constructor.
     */
    public PathMappingHelper() {
        super();
    }

    private static final Logger logger = LogManager.getLogger(PathMappingHelper.class);

    /** Function matcher for encode URL. */
    protected static final String FUNCTION_ENCODEURL_MATCHER = "function:encodeUrl";

    /** Groovy matcher prefix. */
    protected static final String GROOVY_MATCHER = "groovy:";

    buffer.put(readBuffer);
    return this;
  }

  /*
   * Note: hashString(CharSequence, Charset) is intentionally not overridden.
   *
   * While intuitively, using CharsetEncoder to encode the CharSequence directly to the buffer (or
   * even to an intermediate buffer) should be considerably more efficient than potentially
   * copying the CharSequence to a String and then calling getBytes(Charset) on that String, in

        for (int algo : this.compressionAlgorithms) {
            if (algo == algorithm) {
                return true;
            }
        }
        return false;
    }

    @Override
    public int encode(byte[] dst, int dstIndex) {
        if (this.compressionAlgorithms == null) {
            return 0;
        }

        int start = dstIndex;

        // Compression count (2 bytes)

 */
package jcifs.internal;

import jcifs.CIFSException;

/**
 * Exception thrown when errors occur during SMB protocol message decoding.
 * Indicates that an SMB message could not be properly parsed or decoded due to
 * malformed data, protocol violations, or unsupported message formats.
 *
 * @author mbechler
 */
public class SMBProtocolDecodingException extends CIFSException {

    /**
     *
     */

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.pac;

import jcifs.CIFSException;

/**
 * Exception thrown when PAC (Privilege Attribute Certificate) data cannot be decoded.
 * Indicates malformed or invalid PAC structures in Kerberos tickets.
 */
public class PACDecodingException extends CIFSException {

    private static final long serialVersionUID = 1L;

    /**

# レスポンスを直接返す

**FastAPI** の *path operation* では、通常は任意のデータを返すことができます: 例えば、 `dict`、`list`、Pydanticモデル、データベースモデルなどです。

デフォルトでは、**FastAPI** は [JSON互換エンコーダ](../tutorial/encoder.md){.internal-link target=_blank} で説明されている `jsonable_encoder` により、返す値を自動的にJSONに変換します。

このとき背後では、JSON互換なデータ (例えば`dict`) を、クライアントへ送信されるレスポンスとして利用される `JSONResponse` の中に含めます。

しかし、*path operation* から `JSONResponse` を直接返すこともできます。

これは例えば、カスタムヘッダーやcookieを返すときに便利です。

## `Response` を返す