backie/src/errors.rs

53 lines
1.6 KiB
Rust

use thiserror::Error;
/// Library errors
#[derive(Debug, Error)]
pub enum BackieError {
#[error("Queue processing error: {0}")]
QueueProcessingError(#[from] AsyncQueueError),
#[error("Worker Pool shutdown error: {0}")]
WorkerPoolShutdownError(#[from] tokio::sync::watch::error::SendError<()>),
#[error("Worker shutdown error: {0}")]
WorkerShutdownError(#[from] tokio::sync::watch::error::RecvError),
}
/// List of error types that can occur while working with cron schedules.
#[derive(Debug, Error)]
pub enum CronError {
/// A problem occured during cron schedule parsing.
#[error(transparent)]
LibraryError(#[from] cron::error::Error),
/// [`Scheduled`] enum variant is not provided
#[error("You have to implement method `cron()` in your Runnable")]
TaskNotSchedulableError,
/// The next execution can not be determined using the current [`Scheduled::CronPattern`]
#[error("No timestamps match with this cron pattern")]
NoTimestampsError,
}
#[derive(Debug, Error)]
pub enum AsyncQueueError {
#[error(transparent)]
PgError(#[from] diesel::result::Error),
#[error("Task serialization error: {0}")]
SerdeError(#[from] serde_json::Error),
#[error(transparent)]
CronError(#[from] CronError),
#[error("Task is not in progress, operation not allowed")]
TaskNotRunning,
#[error("Task with name {0} is not registered")]
TaskNotRegistered(String),
}
impl From<cron::error::Error> for AsyncQueueError {
fn from(error: cron::error::Error) -> Self {
AsyncQueueError::CronError(CronError::LibraryError(error))
}
}