Struct MemoryBroker 

pub struct MemoryBroker { /* private fields */ }

In-memory broker for testing and development.

Implementations

impl MemoryBroker

pub fn new() -> Self

pub async fn dlq_len(&self, queue: &str) -> usize

Get the dead-letter queue contents for testing.

Trait Implementations

impl Broker for MemoryBroker

fn enqueue<'life0, 'async_trait>( &'life0 self, message: TaskMessage, ) -> Pin<Box<dyn Future<Output = TaskResult<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Push a message onto a queue.

fn dequeue<'life0, 'life1, 'async_trait>( &'life0 self, queues: &'life1 [String], timeout: Duration, ) -> Pin<Box<dyn Future<Output = TaskResult<Option<TaskMessage>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Blocking dequeue from one of the given queues. Returns None if shutdown is signaled or timeout occurs.

fn ack<'life0, 'life1, 'async_trait>( &'life0 self, id: &'life1 TaskId, ) -> Pin<Box<dyn Future<Output = TaskResult<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Acknowledge successful processing — remove from processing queue.

fn nack<'life0, 'async_trait>( &'life0 self, message: TaskMessage, ) -> Pin<Box<dyn Future<Output = TaskResult<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Negative acknowledge — message will be re-enqueued or dead-lettered.

fn dead_letter<'life0, 'async_trait>( &'life0 self, message: TaskMessage, ) -> Pin<Box<dyn Future<Output = TaskResult<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Move a message to the dead-letter queue.

fn schedule<'life0, 'async_trait>( &'life0 self, message: TaskMessage, _eta: DateTime<Utc>, ) -> Pin<Box<dyn Future<Output = TaskResult<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Schedule a message for future delivery.

fn queue_len<'life0, 'life1, 'async_trait>( &'life0 self, queue: &'life1 str, ) -> Pin<Box<dyn Future<Output = TaskResult<usize>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Get the length of a queue.

impl Clone for MemoryBroker

fn clone(&self) -> MemoryBroker

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for MemoryBroker

fn default() -> Self

Returns the “default value” for a type.