[REQ] Add support of @ResponseStatus for spring-http-interface library #20068
Description
Is your feature request related to a problem? Please describe.
The spring-http-interface library doesn't allow to use @ResponseStatus when option useResponseEntity is disabled.
Describe the solution you'd like
When useResponseEntity is set to false the generator should add @ResponseStatus similar it does for default spring generator.
Additional context
Here is what api.mustache should look like after the change:
`/**
- NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech) ({{{generatorVersion}}}).
- https://openapi-generator.tech
- Do not edit the class manually.
*/
package {{package}};
{{#imports}}import {{import}};
{{/imports}}
{{^useResponseEntity}}
import org.springframework.http.HttpStatus;
{{/useResponseEntity}}
import org.springframework.http.ResponseEntity;
{{#useResponseEntity}}
import org.springframework.http.ResponseEntity;
{{/useResponseEntity}}
import org.springframework.web.bind.annotation.;
import org.springframework.web.service.annotation.;
import org.springframework.web.multipart.MultipartFile;
{{#reactive}}
import org.springframework.http.codec.multipart.Part;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
{{/reactive}}
import java.util.List;
import java.util.Map;
import java.util.Optional;
import {{javaxPackage}}.annotation.Generated;
{{>generatedAnnotation}}
{{#operations}}
public interface {{classname}} {
{{#operation}}
/**
* {{httpMethod}} {{{path}}}{{#summary}} : {{.}}{{/summary}}
{{#notes}}
* {{.}}
{{/notes}}
*
{{#allParams}}
* @param {{paramName}} {{description}}{{#required}} (required){{/required}}{{^required}} (optional{{#defaultValue}}, default to {{.}}{{/defaultValue}}){{/required}}
{{/allParams}}
* @return {{#responses}}{{message}} (status code {{code}}){{^-last}}
* or {{/-last}}{{/responses}}
{{#isDeprecated}}
* @deprecated
{{/isDeprecated}}
{{#externalDocs}}
* {{description}}
* @see <a href="{{url}}">{{summary}} Documentation</a>
{{/externalDocs}}
*/
{{#isDeprecated}}
@Deprecated
{{/isDeprecated}}
{{^useResponseEntity}}
@ResponseStatus({{#springHttpStatus}}{{#responses.0}}{{{code}}}{{/responses.0}}{{/springHttpStatus}})
{{/useResponseEntity}}
@HttpExchange(
method = "{{{httpMethod}}}",
value = "{{{path}}}",
accept = { {{#vendorExtensions.x-accepts}}"{{{.}}}"{{^-last}}, {{/-last}}{{/vendorExtensions.x-accepts}} }{{#vendorExtensions.x-content-type}},
contentType = "{{{vendorExtensions.x-content-type}}}"{{/vendorExtensions.x-content-type}}
)
{{>responseType}} {{operationId}}(
{{#allParams}}{{>queryParams}}{{>pathParams}}{{>headerParams}}{{>bodyParams}}{{>formParams}}{{>cookieParams}}{{^-last}},
{{/-last}}{{/allParams}}
){{#unhandledException}} throws Exception{{/unhandledException}};
{{/operation}}
}
{{/operations}}`