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/*!
* Copyright (C) 2017 AT&T Intellectual Property. 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.
*/
/* eslint-disable no-console */
import Common from './Common';
/**
* Logger, to allow calls to console.log during development, but
* disable them for production.
*/
export default class Logger {
// ///////////////////////////////////////////////////////////////////////////////////////////////
/**
* No-op call so that we can leave imports in place,
* even when there's no debugging.
*/
static noop() {
// Nothing.
}
// ///////////////////////////////////////////////////////////////////////////////////////////////
/**
* Set debug level.
* @param level threshold.
*/
static setLevel(level) {
this.level = Logger.OFF;
if (Common.getType(level) === 'Number') {
this.level = level;
} else {
this.level = Logger[level];
}
}
// ///////////////////////////////////////////////////////////////////////////////////////////////
/**
* Get debug level.
* @returns {number|*}
*/
static getLevel() {
return this.level;
}
// ///////////////////////////////////////////////////////////////////////////////////////////////
/**
* Write DEBUG-level log.
* @param msg message or tokens.
*/
static debug(...msg) {
if (this.level >= Logger.DEBUG) {
const out = this.serialize(msg);
console.info(`ASDCS [DEBUG] ${out}`);
}
}
// ///////////////////////////////////////////////////////////////////////////////////////////////
/**
* Write INFO-level log.
* @param msg message or tokens.
*/
static info(...msg) {
if (this.level >= Logger.INFO) {
const out = this.serialize(msg);
console.info(`ASDCS [INFO] ${out}`);
}
}
// ///////////////////////////////////////////////////////////////////////////////////////////////
/**
* Write debug.
* @param msg message or tokens.
*/
static warn(msg) {
if (this.level >= Logger.WARN) {
const out = this.serialize(msg);
console.warn(`ASDCS [WARN] ${out}`);
}
}
// ///////////////////////////////////////////////////////////////////////////////////////////////
/**
* Write error.
* @param msg message or tokens.
*/
static error(...msg) {
if (this.level >= Logger.ERROR) {
const out = this.serialize(msg);
console.error(`ASDCS [ERROR] ${out}`);
}
}
// ///////////////////////////////////////////////////////////////////////////////////////////////
/**
* Serialize msg.
* @param msg message or tokens.
* @returns {string}
*/
static serialize(...msg) {
let out = '';
msg.forEach(token => {
out = `${out}${token}`;
});
return out;
}
}
// /////////////////////////////////////////////////////////////////////////////////////////////////
Logger.OFF = 0;
Logger.ERROR = 1;
Logger.WARN = 2;
Logger.INFO = 3;
Logger.DEBUG = 4;
Logger.level = Logger.OFF;
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