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/*
 Copyright 2017 LambdaStack All rights reserved.

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
*/

/*
 Portions borrowed from the rusoto project. See README.md
*/

use std::fmt;
use std::error::Error;
use std::io::Error as IoError;

use chrono::ParseError;

//#[derive(Debug, PartialEq)]
#[derive(Debug, PartialEq, Default, RustcDecodable, RustcEncodable)]
pub struct CredentialsError{
    pub message: String
}

// Impls below...

impl CredentialsError {
    pub fn new(message: &str) -> CredentialsError {
        CredentialsError {
            message: message.to_string()
        }
    }
}

impl fmt::Display for CredentialsError {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "{}", self.description())
    }
}

impl Error for CredentialsError {
    fn description(&self) -> &str {
        &self.message
    }
}

impl From<ParseError> for CredentialsError {
    fn from(err: ParseError) -> CredentialsError {
        CredentialsError::new(err.description())
    }
}

impl From<IoError> for CredentialsError {
    fn from(err: IoError) -> CredentialsError {
        CredentialsError::new(err.description())
    }
}