vade-evan 0.0.5

/*
  Copyright (c) 2018-present evan GmbH.

  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.
*/

//! Small [`Logger`] plugin implementation. As the [`Logger`] trait is currently considered experimental, this plugin will most probably undergo changes in future.
//!
//! [`Logger`]: vade::traits::Logger

use vade::traits::{ Logger };
use std::any::Any;

pub struct RustLogger {

}

/// Small [`Logger`] plugin implementation. As the [`Logger`] trait is currently considered experimental, this plugin will most probably undergo changes in future.
///
/// [`Logger`]: vade::traits::Logger
impl RustLogger {
    pub fn new() -> RustLogger {
        match env_logger::try_init() {
            Ok(_) | Err(_) => (),
        };
        RustLogger { }
    }
}

impl Logger for RustLogger {
    /// Cast to `Any` for downcasting,
    /// see https://stackoverflow.com/questions/33687447/how-to-get-a-reference-to-a-concrete-type-from-a-trait-object.
    fn as_any(&self) -> &dyn Any {
        self
    }
    
    /// Logs given message with given level.
    /// 
    /// # Arguments
    ///
    /// * `message` - message to log
    /// * `level` - optional arguments for logging level, levels may differ based on environment
    fn log(&self, message: &str, level: Option<&str>) {
        match level {
            Some("error") => error!("{}", message),
            Some("warn")  => warn!("{}", message),
            Some("debug") => debug!("{}", message),
            Some("info") | Some(_) | None => info!("{}", message),
        }
    }
}