public static boolean isDotQuadIP(final String hostname) {
        if (Character.isDigit(hostname.charAt(0))) {
            int i, len, dots;
            char[] data;

            i = dots = 0; /* quick IP address validation */
            len = hostname.length();
            data = hostname.toCharArray();
            while (i < len && Character.isDigit(data[i++])) {
                if (i == len && dots == 3) {

        assertNotNull(buffer, "Buffer should not be null");
        assertEquals(SmbComTransaction.TRANSACTION_BUF_SIZE, buffer.length, "Buffer should have TRANSACTION_BUF_SIZE");

        // The validation in getBuffer() ensures size is within bounds (0 < size <= 1MB)
        assertTrue(buffer.length > 0, "Buffer size should be positive");
        assertTrue(buffer.length <= 0x100000, "Buffer size should not exceed 1MB");
    }

		}
		if err != nil {
			if tc.err == nil {
				t.Fatalf("Test %d: failed due to %v", i+1, err)
			}
		} else {
			if err := v.Validate(); tc.err != err {
				t.Fatalf("Test %d: validation failed due to %v", i+1, err)
			}
			if len(tc.excludedPrefixes) > 0 {
				var mismatch bool
				if len(v.ExcludedPrefixes) != len(tc.excludedPrefixes) {

 * System.out.println(normalized); // Outputs: ガギグゲゴ
 * }
 * </pre>
 *
 * <p>Note: This class assumes that the input string contains valid Hankaku Kana characters
 * and does not perform any validation on the input.</p>
 *
 * @see Normalizer
 */
public class HankakuKanaToZenkakuKana implements Normalizer {
    /**
     * Constructs a new {@link HankakuKanaToZenkakuKana}.
     */

문서가 아래와 같이 보일겁니다:

<img src="/img/tutorial/query-params-str-validations/image01.png">

## OpenAPI에서 매개변수 제외 { #exclude-parameters-from-openapi }

생성된 OpenAPI 스키마(따라서 자동 문서화 시스템)에서 쿼리 매개변수를 제외하려면 `Query`의 `include_in_schema` 매개변수를 `False`로 설정하세요:

{* ../../docs_src/query_params_str_validations/tutorial014_an_py310.py hl[10] *}

## 커스텀 검증 { #custom-validation }

위에 나온 매개변수들로는 할 수 없는 **커스텀 검증**이 필요한 경우가 있을 수 있습니다.

    // The choice of the size() method to call here is arbitrary.  We assume that if any of the Set
    // methods executes the validation check, they all will, and thus we only need to test one of
    // them to ensure that the validation check happens and has the expected behavior.
    assertNodeRemovedFromGraphErrorMessage(
        assertThrows(IllegalStateException.class, n1AdjacentNodes::size));

        }
    }

    @Test
    public void test_throwAndCatchWithCause() {
        // Test throwing and catching exception with cause
        String expectedMessage = "Theme validation failed";
        Exception expectedCause = new IllegalStateException("Invalid state");

        try {
            throw new ThemeException(expectedMessage, expectedCause);
        } catch (ThemeException e) {

        try {
            resp = send(req, RequestParam.NO_RETRY);
        } catch (final SMBSignatureValidationException e) {
            throw new SMBProtocolDowngradeException("Signature error during negotiate validation", e);
        } catch (final SmbException e) {
            if (log.isDebugEnabled()) {
                log.debug(String.format("VALIDATE_NEGOTIATE_INFO response code 0x%x", e.getNtStatus()));
            }

  - true/strict - perform validation and error the request on any invalid fields in the ojbect. It will attempt to perform server-side validation if it is enabled on the apiserver, otherwise it will fall back to client-side validation.

And you could do this even if the data type in the request is not JSON.

For example, in this application we don't use FastAPI's integrated functionality to extract the JSON Schema from Pydantic models nor the automatic validation for JSON. In fact, we are declaring the request content type as YAML, not JSON:

{* ../../docs_src/path_operation_advanced_configuration/tutorial007_py310.py hl[15:20, 22] *}