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use super::core;
use hex;
use jsonrpc_core;
use keystore;
use reqwest;
use rustc_serialize;
use serde_json;
use std::{error, fmt, io};
#[derive(Debug)]
pub enum Error {
HttpClient(reqwest::Error),
RPC(jsonrpc_core::Error),
InvalidDataFormat(String),
}
impl From<rustc_serialize::json::EncoderError> for Error {
fn from(err: rustc_serialize::json::EncoderError) -> Self {
Error::InvalidDataFormat(format!("decoder: {}", err.to_string()))
}
}
impl From<rustc_serialize::json::DecoderError> for Error {
fn from(err: rustc_serialize::json::DecoderError) -> Self {
Error::InvalidDataFormat(format!("decoder: {}", err.to_string()))
}
}
impl From<keystore::Error> for Error {
fn from(err: keystore::Error) -> Self {
Error::InvalidDataFormat(format!("keystore: {}", err.to_string()))
}
}
impl From<io::Error> for Error {
fn from(e: io::Error) -> Self {
Error::InvalidDataFormat(e.to_string())
}
}
impl From<reqwest::Error> for Error {
fn from(err: reqwest::Error) -> Self {
Error::HttpClient(err)
}
}
impl From<core::Error> for Error {
fn from(err: core::Error) -> Self {
Error::InvalidDataFormat(err.to_string())
}
}
impl From<serde_json::Error> for Error {
fn from(err: serde_json::Error) -> Self {
Error::InvalidDataFormat(err.to_string())
}
}
impl From<hex::FromHexError> for Error {
fn from(err: hex::FromHexError) -> Self {
Error::InvalidDataFormat(err.to_string())
}
}
impl From<jsonrpc_core::Error> for Error {
fn from(err: jsonrpc_core::Error) -> Self {
Error::RPC(err)
}
}
impl Into<jsonrpc_core::Error> for Error {
fn into(self) -> jsonrpc_core::Error {
jsonrpc_core::Error::internal_error()
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Error::HttpClient(ref err) => write!(f, "HTTP client error: {}", err),
Error::RPC(ref err) => write!(f, "RPC error: {:?}", err),
Error::InvalidDataFormat(ref str) => write!(f, "Invalid data format: {}", str),
}
}
}
impl error::Error for Error {
fn description(&self) -> &str {
"JSON RPC errors"
}
fn cause(&self) -> Option<&error::Error> {
match *self {
Error::HttpClient(ref err) => Some(err),
_ => None,
}
}
}