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use thiserror instead of derive_more for error handling (#10696)

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* use thiserror instead of derive_more for error handling

Signed-off-by: koushiro <koushiro.cqx@gmail.com>

* Update utils/prometheus/src/lib.rs

* Update utils/prometheus/src/lib.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
This commit is contained in:
Qinxuan Chen
2022-01-26 03:48:46 +08:00
committed by GitHub
parent 38d94d6323
commit e956c2e1c7
47 changed files with 378 additions and 357 deletions
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substrate/utils/prometheus/src/lib.rs
+13 -18
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@@ -47,27 +47,22 @@ pub fn register<T: Clone + Collector + 'static>(
Ok(metric)
}
#[derive(Debug, derive_more::Display, derive_more::From)]
#[derive(Debug, thiserror::Error)]
pub enum Error {
/// Hyper internal error.
Hyper(hyper::Error),
/// Http request error.
Http(hyper::http::Error),
/// i/o error.
Io(std::io::Error),
#[display(fmt = "Prometheus port {} already in use.", _0)]
PortInUse(SocketAddr),
}
#[error(transparent)]
Hyper(#[from] hyper::Error),
impl std::error::Error for Error {
fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
match self {
Error::Hyper(error) => Some(error),
Error::Http(error) => Some(error),
Error::Io(error) => Some(error),
Error::PortInUse(_) => None,
}
}
/// Http request error.
#[error(transparent)]
Http(#[from] hyper::http::Error),
/// i/o error.
#[error(transparent)]
Io(#[from] std::io::Error),
#[error("Prometheus port {0} already in use.")]
PortInUse(SocketAddr),
}
async fn request_metrics(req: Request<Body>, registry: Registry) -> Result<Response<Body>, Error> {