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use std::fmt::Debug;
use std::time::Duration;
use waiter::{Waiter, WaiterCurrentState};
use super::super::{Error, ErrorKind, Result};
use super::Refresh;
#[derive(Debug)]
pub struct DeletionWaiter<T> {
inner: T,
wait_timeout: Duration,
delay: Duration,
}
impl<T> DeletionWaiter<T> {
#[allow(dead_code)]
pub(crate) fn new(inner: T, wait_timeout: Duration, delay: Duration) -> DeletionWaiter<T> {
DeletionWaiter {
inner,
wait_timeout,
delay,
}
}
}
impl<T> WaiterCurrentState<T> for DeletionWaiter<T> {
fn waiter_current_state(&self) -> &T {
&self.inner
}
}
impl<T: Refresh + Debug> Waiter<(), Error> for DeletionWaiter<T> {
fn default_wait_timeout(&self) -> Option<Duration> {
Some(self.wait_timeout)
}
fn default_delay(&self) -> Duration {
self.delay
}
fn timeout_error(&self) -> Error {
Error::new(
ErrorKind::OperationTimedOut,
format!(
"Timeout waiting for resource {:?} to be deleted",
self.inner
),
)
}
fn poll(&mut self) -> Result<Option<()>> {
match self.inner.refresh() {
Ok(..) => {
trace!("Still waiting for resource {:?} to be deleted", self.inner);
Ok(None)
}
Err(ref e) if e.kind() == ErrorKind::ResourceNotFound => {
debug!("Resource {:?} was deleted", self.inner);
Ok(Some(()))
}
Err(e) => {
debug!("Failed to delete resource {:?} - {}", self.inner, e);
Err(e)
}
}
}
}