/** */
    private List<String> messages;

    public ModelValidationResult() {
        messages = new ArrayList<>();
    }

    public int getMessageCount() {
        return messages.size();
    }

    public String getMessage(int i) {
        return messages.get(i);
    }

    public List<String> getMessages() {
        return Collections.unmodifiableList(messages);
    }

                throwValidationError(messages -> messages.addErrorsFailedToDeleteFile(GLOBAL, form.fileName), this::asListHtml);
            }
        }).orElse(() -> {
            throwValidationError(messages -> messages.addErrorsTargetFileDoesNotExist(GLOBAL, form.fileName), this::asListHtml);
        });
        saveInfo(messages -> messages.addSuccessDeleteFile(GLOBAL, form.fileName));

                throwValidationError(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)),
                        this::asEditHtml);
            }
        }).orElse(() -> {
            throwValidationError(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL), this::asEditHtml);
        });
        return redirect(getClass());
    }

    @Execute

                upgradeFromAll();

                saveInfo(messages -> messages.addSuccessStartedDataUpdate(GLOBAL));

                systemHelper.reloadConfiguration();
            } catch (final Exception e) {
                logger.warn("Failed to upgrade data.", e);
                saveError(messages -> messages.addErrorsFailedToUpgradeFrom(GLOBAL, VERSION_13_0, e.getLocalizedMessage()));
            }

        assertEquals(4, problems.messages.size());
        assertContains(problems.messages.get(0), "'mirrors.mirror.id' must not be 'local'");
        assertContains(problems.messages.get(1), "'mirrors.mirror.url' for local is missing");
        assertContains(problems.messages.get(2), "'mirrors.mirror.mirrorOf' for local is missing");

	}

	var messages diag.Messages = make([]diag.Message, 0)

	if minor <= 21 {
		// ENHANCED_RESOURCE_SCOPING
		if err := checkPilot(cli, ctx.IstioNamespace(), &messages); err != nil {
			return nil, err
		}
	}
	if minor <= 21 {
		if err := checkPassthroughTargetPorts(cli, &messages); err != nil {
			return nil, err
		}

                throw new InvalidQueryException(messages -> messages.addErrorsInvalidQuerySortValue(UserMessages.GLOBAL_PROPERTY_KEY, text),
                        "Invalid sort field: " + termQuery);
            }
            final String sortField = values[0];
            if (!getQueryFieldConfig().isSortField(sortField)) {
                throw new InvalidQueryException(

    /**
     * Color style for transfer messages.
     * @since 4.0.0
     */
    @Config(defaultValue = MAVEN_STYLE_TRANSFER_DEFAULT)
    public static final String MAVEN_STYLE_TRANSFER = MAVEN_STYLE_PREFIX + MAVEN_STYLE_TRANSFER_NAME;

    /**
     * Color style for trace messages.
     * @since 4.0.0
     */
    @Config(defaultValue = MAVEN_STYLE_TRACE_DEFAULT)

**FastAPI** provides the same `WebSocket` directly just as a convenience for you, the developer. But it comes directly from Starlette.

///

## Await for messages and send messages

In your WebSocket route you can `await` for messages and send messages.

```Python hl_lines="48-52"
{!../../docs_src/websockets/tutorial001.py!}
```

You can receive and send binary, text, and JSON data.

## Try it

    public HtmlResponse reindexOnly(final ActionForm form) {
        validate(form, messages -> {}, this::asIndexHtml);
        verifyToken(this::asIndexHtml);
        if (startReindex(isCheckboxEnabled(form.replaceAliases), isCheckboxEnabled(form.resetDictionaries), form.numberOfShardsForDoc,
                form.autoExpandReplicasForDoc)) {
            saveInfo(messages -> messages.addSuccessStartedDataUpdate(GLOBAL));
        }