217 lines
7.1 KiB
JavaScript
217 lines
7.1 KiB
JavaScript
|
/**
|
||
|
* @license
|
||
|
* Copyright 2017 Google LLC
|
||
|
*
|
||
|
* 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.
|
||
|
*/
|
||
|
/**
|
||
|
* A container for all of the Logger instances
|
||
|
*/
|
||
|
const instances = [];
|
||
|
/**
|
||
|
* The JS SDK supports 5 log levels and also allows a user the ability to
|
||
|
* silence the logs altogether.
|
||
|
*
|
||
|
* The order is a follows:
|
||
|
* DEBUG < VERBOSE < INFO < WARN < ERROR
|
||
|
*
|
||
|
* All of the log types above the current log level will be captured (i.e. if
|
||
|
* you set the log level to `INFO`, errors will still be logged, but `DEBUG` and
|
||
|
* `VERBOSE` logs will not)
|
||
|
*/
|
||
|
var LogLevel;
|
||
|
(function (LogLevel) {
|
||
|
LogLevel[LogLevel["DEBUG"] = 0] = "DEBUG";
|
||
|
LogLevel[LogLevel["VERBOSE"] = 1] = "VERBOSE";
|
||
|
LogLevel[LogLevel["INFO"] = 2] = "INFO";
|
||
|
LogLevel[LogLevel["WARN"] = 3] = "WARN";
|
||
|
LogLevel[LogLevel["ERROR"] = 4] = "ERROR";
|
||
|
LogLevel[LogLevel["SILENT"] = 5] = "SILENT";
|
||
|
})(LogLevel || (LogLevel = {}));
|
||
|
const levelStringToEnum = {
|
||
|
'debug': LogLevel.DEBUG,
|
||
|
'verbose': LogLevel.VERBOSE,
|
||
|
'info': LogLevel.INFO,
|
||
|
'warn': LogLevel.WARN,
|
||
|
'error': LogLevel.ERROR,
|
||
|
'silent': LogLevel.SILENT
|
||
|
};
|
||
|
/**
|
||
|
* The default log level
|
||
|
*/
|
||
|
const defaultLogLevel = LogLevel.INFO;
|
||
|
/**
|
||
|
* By default, `console.debug` is not displayed in the developer console (in
|
||
|
* chrome). To avoid forcing users to have to opt-in to these logs twice
|
||
|
* (i.e. once for firebase, and once in the console), we are sending `DEBUG`
|
||
|
* logs to the `console.log` function.
|
||
|
*/
|
||
|
const ConsoleMethod = {
|
||
|
[LogLevel.DEBUG]: 'log',
|
||
|
[LogLevel.VERBOSE]: 'log',
|
||
|
[LogLevel.INFO]: 'info',
|
||
|
[LogLevel.WARN]: 'warn',
|
||
|
[LogLevel.ERROR]: 'error'
|
||
|
};
|
||
|
/**
|
||
|
* The default log handler will forward DEBUG, VERBOSE, INFO, WARN, and ERROR
|
||
|
* messages on to their corresponding console counterparts (if the log method
|
||
|
* is supported by the current log level)
|
||
|
*/
|
||
|
const defaultLogHandler = (instance, logType, ...args) => {
|
||
|
if (logType < instance.logLevel) {
|
||
|
return;
|
||
|
}
|
||
|
const now = new Date().toISOString();
|
||
|
const method = ConsoleMethod[logType];
|
||
|
if (method) {
|
||
|
console[method](`[${now}] ${instance.name}:`, ...args);
|
||
|
}
|
||
|
else {
|
||
|
throw new Error(`Attempted to log a message with an invalid logType (value: ${logType})`);
|
||
|
}
|
||
|
};
|
||
|
class Logger {
|
||
|
/**
|
||
|
* Gives you an instance of a Logger to capture messages according to
|
||
|
* Firebase's logging scheme.
|
||
|
*
|
||
|
* @param name The name that the logs will be associated with
|
||
|
*/
|
||
|
constructor(name) {
|
||
|
this.name = name;
|
||
|
/**
|
||
|
* The log level of the given Logger instance.
|
||
|
*/
|
||
|
this._logLevel = defaultLogLevel;
|
||
|
/**
|
||
|
* The main (internal) log handler for the Logger instance.
|
||
|
* Can be set to a new function in internal package code but not by user.
|
||
|
*/
|
||
|
this._logHandler = defaultLogHandler;
|
||
|
/**
|
||
|
* The optional, additional, user-defined log handler for the Logger instance.
|
||
|
*/
|
||
|
this._userLogHandler = null;
|
||
|
/**
|
||
|
* Capture the current instance for later use
|
||
|
*/
|
||
|
instances.push(this);
|
||
|
}
|
||
|
get logLevel() {
|
||
|
return this._logLevel;
|
||
|
}
|
||
|
set logLevel(val) {
|
||
|
if (!(val in LogLevel)) {
|
||
|
throw new TypeError('Invalid value assigned to `logLevel`');
|
||
|
}
|
||
|
this._logLevel = val;
|
||
|
}
|
||
|
get logHandler() {
|
||
|
return this._logHandler;
|
||
|
}
|
||
|
set logHandler(val) {
|
||
|
if (typeof val !== 'function') {
|
||
|
throw new TypeError('Value assigned to `logHandler` must be a function');
|
||
|
}
|
||
|
this._logHandler = val;
|
||
|
}
|
||
|
get userLogHandler() {
|
||
|
return this._userLogHandler;
|
||
|
}
|
||
|
set userLogHandler(val) {
|
||
|
this._userLogHandler = val;
|
||
|
}
|
||
|
/**
|
||
|
* The functions below are all based on the `console` interface
|
||
|
*/
|
||
|
debug(...args) {
|
||
|
this._userLogHandler && this._userLogHandler(this, LogLevel.DEBUG, ...args);
|
||
|
this._logHandler(this, LogLevel.DEBUG, ...args);
|
||
|
}
|
||
|
log(...args) {
|
||
|
this._userLogHandler &&
|
||
|
this._userLogHandler(this, LogLevel.VERBOSE, ...args);
|
||
|
this._logHandler(this, LogLevel.VERBOSE, ...args);
|
||
|
}
|
||
|
info(...args) {
|
||
|
this._userLogHandler && this._userLogHandler(this, LogLevel.INFO, ...args);
|
||
|
this._logHandler(this, LogLevel.INFO, ...args);
|
||
|
}
|
||
|
warn(...args) {
|
||
|
this._userLogHandler && this._userLogHandler(this, LogLevel.WARN, ...args);
|
||
|
this._logHandler(this, LogLevel.WARN, ...args);
|
||
|
}
|
||
|
error(...args) {
|
||
|
this._userLogHandler && this._userLogHandler(this, LogLevel.ERROR, ...args);
|
||
|
this._logHandler(this, LogLevel.ERROR, ...args);
|
||
|
}
|
||
|
}
|
||
|
function setLogLevel(level) {
|
||
|
const newLevel = typeof level === 'string' ? levelStringToEnum[level] : level;
|
||
|
instances.forEach(inst => {
|
||
|
inst.logLevel = newLevel;
|
||
|
});
|
||
|
}
|
||
|
function setUserLogHandler(logCallback, options) {
|
||
|
for (const instance of instances) {
|
||
|
let customLogLevel = null;
|
||
|
if (options && options.level) {
|
||
|
customLogLevel = levelStringToEnum[options.level];
|
||
|
}
|
||
|
if (logCallback === null) {
|
||
|
instance.userLogHandler = null;
|
||
|
}
|
||
|
else {
|
||
|
instance.userLogHandler = (instance, level, ...args) => {
|
||
|
const message = args
|
||
|
.map(arg => {
|
||
|
if (arg == null) {
|
||
|
return null;
|
||
|
}
|
||
|
else if (typeof arg === 'string') {
|
||
|
return arg;
|
||
|
}
|
||
|
else if (typeof arg === 'number' || typeof arg === 'boolean') {
|
||
|
return arg.toString();
|
||
|
}
|
||
|
else if (arg instanceof Error) {
|
||
|
return arg.message;
|
||
|
}
|
||
|
else {
|
||
|
try {
|
||
|
return JSON.stringify(arg);
|
||
|
}
|
||
|
catch (ignored) {
|
||
|
return null;
|
||
|
}
|
||
|
}
|
||
|
})
|
||
|
.filter(arg => arg)
|
||
|
.join(' ');
|
||
|
if (level >= (customLogLevel !== null && customLogLevel !== void 0 ? customLogLevel : instance.logLevel)) {
|
||
|
logCallback({
|
||
|
level: LogLevel[level].toLowerCase(),
|
||
|
message,
|
||
|
args,
|
||
|
type: instance.name
|
||
|
});
|
||
|
}
|
||
|
};
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
export { LogLevel, Logger, setLogLevel, setUserLogHandler };
|
||
|
//# sourceMappingURL=index.esm2017.js.map
|