66 lines
1.4 KiB
Rust
66 lines
1.4 KiB
Rust
//! Error types for the `Batch` middleware.
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use crate::BoxError;
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use std::{fmt, sync::Arc};
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/// An error produced by a `Service` wrapped by a `Batch`.
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#[derive(Debug)]
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pub struct ServiceError {
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inner: Arc<BoxError>,
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}
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/// An error produced when the batch worker closes unexpectedly.
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pub struct Closed {
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_p: (),
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}
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// ===== impl ServiceError =====
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impl ServiceError {
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pub(crate) fn new(inner: BoxError) -> ServiceError {
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let inner = Arc::new(inner);
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ServiceError { inner }
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}
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// Private to avoid exposing `Clone` trait as part of the public API
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pub(crate) fn clone(&self) -> ServiceError {
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ServiceError {
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inner: self.inner.clone(),
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}
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}
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}
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impl fmt::Display for ServiceError {
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fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
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write!(fmt, "batching service failed: {}", self.inner)
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}
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}
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impl std::error::Error for ServiceError {
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fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
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Some(&**self.inner)
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}
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}
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// ===== impl Closed =====
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impl Closed {
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pub(crate) fn new() -> Self {
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Closed { _p: () }
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}
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}
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impl fmt::Debug for Closed {
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fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
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fmt.debug_tuple("Closed").finish()
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}
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}
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impl fmt::Display for Closed {
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fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
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fmt.write_str("batch worker closed unexpectedly")
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}
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}
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impl std::error::Error for Closed {}
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