HLTech / pact-gen

public final class PathParametersExtractor {

    private PathParametersExtractor() {}

    public static List<Param> extractAll(Method feignClientMethod) {

        return Arrays.stream(feignClientMethod.getParameters())

            .filter(param -> param.getAnnotation(PathVariable.class) != null)

            .filter(param -> param.getType() != Map.class)

            .map(PathParametersExtractor::extract)

            .collect(Collectors.toList());

    }

    private static Param extract(Parameter param) {

        PathVariable annotation = param.getAnnotation(PathVariable.class);

        List<Class<?>> paramTypes = TypeExtractor.extractParameterTypesFromType(param.getParameterizedType());

        return Param.builder()

            .name(annotation.name().isEmpty() ? annotation.value() : annotation.name())

            .type(param.getType())

            .genericArgumentType(paramTypes.isEmpty() ? null : paramTypes.get(0))

            .build();