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//! Representations of various client errors
use std::error::Error as ErrorTrait;
use std::io::Error as IoError;
use std::fmt;
use hyper::Error as HttpError;
use hyper::status::StatusCode;
use rustc_serialize::json::{DecoderError, EncoderError, ParserError};
#[derive(Debug)]
pub enum Error {
Decoding(DecoderError),
Encoding(EncoderError),
Parse(ParserError),
Http(HttpError),
IO(IoError),
Fault {
code: StatusCode,
message: String,
},
}
impl From<ParserError> for Error {
fn from(error: ParserError) -> Error {
Error::Parse(error)
}
}
impl From<DecoderError> for Error {
fn from(error: DecoderError) -> Error {
Error::Decoding(error)
}
}
impl From<EncoderError> for Error {
fn from(error: EncoderError) -> Error {
Error::Encoding(error)
}
}
impl From<HttpError> for Error {
fn from(error: HttpError) -> Error {
Error::Http(error)
}
}
impl From<IoError> for Error {
fn from(error: IoError) -> Error {
Error::IO(error)
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
try!(write!(f, "Docker Error: "));
match self {
&Error::Decoding(ref err) => return err.fmt(f),
&Error::Encoding(ref err) => return err.fmt(f),
&Error::Parse(ref err) => return err.fmt(f),
&Error::Http(ref err) => return err.fmt(f),
&Error::IO(ref err) => return err.fmt(f),
&Error::Fault { code, .. } => return write!(f, "{}", code),
};
}
}
impl ErrorTrait for Error {
fn description(&self) -> &str {
"Shiplift Error"
}
fn cause(&self) -> Option<&ErrorTrait> {
match self {
&Error::Decoding(ref err) => Some(err),
&Error::Encoding(ref err) => Some(err),
&Error::Parse(ref err) => Some(err),
&Error::Http(ref err) => Some(err),
&Error::IO(ref err) => Some(err),
_ => None
}
}
}
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