59 lines
2.0 KiB
Rust
59 lines
2.0 KiB
Rust
use std::fmt;
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use jsonrpc_core::{Error as JsonRpcError, ErrorCode};
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use serde_json::error::Error as SerdeJsonError;
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use peach_stats::StatsError;
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/// Custom error type encapsulating all possible errors for a JSON-RPC server
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/// and associated methods.
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#[derive(Debug)]
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pub enum JsonRpcServerError {
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/// Failed to serialize a string from a data structure.
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Serde(SerdeJsonError),
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/// An error returned from the `peach-stats` library.
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Stats(StatsError),
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/// An expected JSON-RPC method parameter was not provided.
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MissingParameter(JsonRpcError),
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/// Failed to parse a provided JSON-RPC method parameter.
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ParseParameter(JsonRpcError),
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}
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impl fmt::Display for JsonRpcServerError {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match *self {
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JsonRpcServerError::ParseParameter(ref source) => {
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write!(f, "Failed to parse parameter: {}", source)
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}
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JsonRpcServerError::MissingParameter(ref source) => {
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write!(f, "Missing expected parameter: {}", source)
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}
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JsonRpcServerError::Serde(ref source) => {
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write!(f, "{}", source)
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}
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JsonRpcServerError::Stats(ref source) => {
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write!(f, "{}", source)
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}
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}
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}
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}
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impl From<JsonRpcServerError> for JsonRpcError {
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fn from(err: JsonRpcServerError) -> Self {
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match &err {
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JsonRpcServerError::Serde(source) => JsonRpcError {
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code: ErrorCode::ServerError(-32002),
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message: format!("{}", source),
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data: None,
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},
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JsonRpcServerError::Stats(source) => JsonRpcError {
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code: ErrorCode::ServerError(-32001),
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message: format!("{}", source),
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data: None,
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},
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JsonRpcServerError::MissingParameter(source) => source.clone(),
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JsonRpcServerError::ParseParameter(source) => source.clone(),
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}
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}
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}
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