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// This file is part of Substrate.
// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
//! Errors that can occur during the service operation.
use sc_keystore;
use sp_blockchain;
use sp_consensus;
/// Service Result typedef.
pub type Result<T> = std::result::Result<T, Error>;
/// Service errors.
#[derive(Debug, thiserror::Error)]
#[allow(missing_docs)]
#[non_exhaustive]
pub enum Error {
#[error(transparent)]
Client(#[from] sp_blockchain::Error),
#[error(transparent)]
Io(#[from] std::io::Error),
#[error(transparent)]
Consensus(#[from] sp_consensus::Error),
#[error(transparent)]
Network(#[from] sc_network::error::Error),
#[error(transparent)]
Keystore(#[from] sc_keystore::Error),
#[error(transparent)]
Telemetry(#[from] sc_telemetry::Error),
#[error("Best chain selection strategy (SelectChain) is not provided.")]
SelectChainRequired,
#[error("Tasks executor hasn't been provided.")]
TaskExecutorRequired,
#[error("Prometheus metrics error: {0}")]
Prometheus(#[from] prometheus_endpoint::PrometheusError),
#[error("Application: {0}")]
Application(#[from] Box<dyn std::error::Error + Send + Sync + 'static>),
#[error("Other: {0}")]
Other(String),
}
impl<'a> From<&'a str> for Error {
fn from(s: &'a str) -> Self {
Error::Other(s.into())
}
}
impl From<String> for Error {
fn from(s: String) -> Self {
Error::Other(s)
}
}