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use std::error;
use std::fmt;
use std::io;
pub type Result<T> = std::result::Result<T, AmqpError>;
#[derive(Debug)]
pub enum AmqpError {
IoError(io::Error),
Amqp(ErrorCondition),
Generic(String),
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ErrorCondition {
pub condition: String,
pub description: String,
}
pub mod condition {
pub const INTERNAL_ERROR: &str = "amqp:internal-error";
pub const NOT_FOUND: &str = "amqp:not-found";
pub const DECODE_ERROR: &str = "amqp:decode-error";
pub const NOT_IMPLEMENTED: &str = "amqp:not-implemented";
pub const RESOURCE_LIMIT_EXCEEDED: &str = "amqp:resource-limit-exceeded";
pub mod connection {
pub const CONNECTION_FORCED: &str = "amqp:connection:forced";
pub const FRAMING_ERROR: &str = "amqp:connection:framing-error";
pub const REDIRECT: &str = "amqp:connection:redirect";
}
}
impl AmqpError {
pub fn generic(s: &str) -> AmqpError {
AmqpError::Generic(s.to_string())
}
pub fn internal_error() -> AmqpError {
AmqpError::amqp_error(condition::INTERNAL_ERROR, None)
}
pub fn framing_error() -> AmqpError {
AmqpError::amqp_error(condition::connection::FRAMING_ERROR, None)
}
pub fn not_implemented() -> AmqpError {
AmqpError::amqp_error(condition::NOT_IMPLEMENTED, None)
}
pub fn decode_error(description: Option<&str>) -> AmqpError {
AmqpError::amqp_error(condition::DECODE_ERROR, description)
}
pub fn amqp_error(condition: &'static str, description: Option<&str>) -> AmqpError {
AmqpError::Amqp(ErrorCondition {
condition: condition.to_string(),
description: description.unwrap_or("").to_string(),
})
}
}
impl error::Error for AmqpError {
fn source(&self) -> Option<&(dyn error::Error + 'static)> {
None
}
}
impl fmt::Display for AmqpError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
AmqpError::IoError(e) => write!(f, "{}", e.to_string()),
AmqpError::Amqp(s) => write!(f, "{:?}", s),
AmqpError::Generic(s) => write!(f, "{}", s),
}
}
}
impl std::convert::From<io::Error> for AmqpError {
fn from(error: io::Error) -> Self {
AmqpError::IoError(error)
}
}
impl<T> std::convert::From<std::sync::mpsc::SendError<T>> for AmqpError {
fn from(error: std::sync::mpsc::SendError<T>) -> Self {
AmqpError::Generic(error.to_string())
}
}
impl std::convert::From<std::sync::mpsc::RecvError> for AmqpError {
fn from(error: std::sync::mpsc::RecvError) -> Self {
AmqpError::Generic(error.to_string())
}
}
impl std::convert::From<std::sync::mpsc::TryRecvError> for AmqpError {
fn from(error: std::sync::mpsc::TryRecvError) -> Self {
AmqpError::Generic(error.to_string())
}
}
impl std::convert::From<std::str::Utf8Error> for AmqpError {
fn from(error: std::str::Utf8Error) -> Self {
AmqpError::Generic(error.to_string())
}
}
impl std::convert::From<std::string::FromUtf8Error> for AmqpError {
fn from(error: std::string::FromUtf8Error) -> Self {
AmqpError::Generic(error.to_string())
}
}
impl std::convert::From<std::boxed::Box<dyn std::any::Any + std::marker::Send>> for AmqpError {
fn from(_error: std::boxed::Box<dyn std::any::Any + std::marker::Send>) -> Self {
AmqpError::Generic("thread error".to_string())
}
}
impl std::convert::From<std::num::ParseIntError> for AmqpError {
fn from(error: std::num::ParseIntError) -> Self {
AmqpError::Generic(error.to_string())
}
}