Struct DescribeTopicPartitionsService 

pub struct DescribeTopicPartitionsService;

A Service using Storage as Context taking DescribeTopicPartitionsRequest returning DescribeTopicPartitionsResponse.

use rama::{Context, Layer as _, Service, layer::MapStateLayer};
use tansu_sans_io::{
    DescribeTopicPartitionsRequest, ErrorCode,
    describe_topic_partitions_request::TopicRequest,
};
use tansu_storage::{DescribeTopicPartitionsService, Error, StorageContainer};
use url::Url;

let storage = StorageContainer::builder()
    .cluster_id("tansu")
    .node_id(111)
    .advertised_listener(Url::parse("tcp://localhost:9092")?)
    .storage(Url::parse("memory://tansu/")?)
    .build()
    .await?;

let service = MapStateLayer::new(|_| storage).into_layer(DescribeTopicPartitionsService);

let topic = "abcba";

let response = service
    .serve(
        Context::default(),
        DescribeTopicPartitionsRequest::default()
            .topics(Some([TopicRequest::default().name(topic.into())].into())),
    )
    .await?;

let topics = response.topics.unwrap_or_default();
assert_eq!(1, topics.len());
assert_eq!(
    ErrorCode::UnknownTopicOrPartition,
    ErrorCode::try_from(topics[0].error_code)?
);
assert_eq!(Some(topic), topics[0].name.as_deref());

Trait Implementations

impl ApiKey for DescribeTopicPartitionsService

const KEY: i16 = DescribeTopicPartitionsRequest::KEY

impl Clone for DescribeTopicPartitionsService

fn clone(&self) -> DescribeTopicPartitionsService

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DescribeTopicPartitionsService

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for DescribeTopicPartitionsService

fn default() -> DescribeTopicPartitionsService

Returns the “default value” for a type.

impl Hash for DescribeTopicPartitionsService

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for DescribeTopicPartitionsService

fn cmp(&self, other: &DescribeTopicPartitionsService) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for DescribeTopicPartitionsService

fn eq(&self, other: &DescribeTopicPartitionsService) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for DescribeTopicPartitionsService

fn partial_cmp( &self, other: &DescribeTopicPartitionsService, ) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<G> Service<G, DescribeTopicPartitionsRequest> for DescribeTopicPartitionsService

where G: Storage,

type Response = DescribeTopicPartitionsResponse

The type of response returned by the service.

type Error = Error

The type of error returned by the service.

async fn serve( &self, ctx: Context<G>, req: DescribeTopicPartitionsRequest, ) -> Result<Self::Response, Self::Error>

Serve a response or error for the given request, using the given context.

fn boxed(self) -> BoxService<S, Request, Self::Response, Self::Error>

Box this service to allow for dynamic dispatch.

impl Copy for DescribeTopicPartitionsService

impl Eq for DescribeTopicPartitionsService

impl StructuralPartialEq for DescribeTopicPartitionsService