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Manager.js
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Manager.js
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'use strict'
/**
* adonis-throttle
*
* (c) Andrew Jo <andrewjo@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
const { ioc } = require('@adonisjs/fold')
const { InvalidArgumentException } = require('@adonisjs/generic-exceptions')
const drivers = require('./Drivers')
const Cache = require('./Drivers/Cache')
/**
* The throttle manager class is exposed as IoC container binding, which can
* be used to add new driver and get an instance of a given driver.
*
* @namespace Adonis/Addons/Throttle
* @manager Adonis/Addons/Throttle
* @singleton
* @class ThrottleManager
*/
class ThrottleManager {
constructor() {
this._drivers = {}
}
/**
* Method called by IoC when someone extends the throttle provider to add
* their own driver.
*
* @method extend
*
* @param {String} key
* @param {Class} implementation
*
* @return {void}
*/
extend(key, implementation) {
if (!(implementation.prototype instanceof Cache)) {
const name = implementation.name
const message = `${name} class must extend BaseCache abstract base class`
throw new TypeError(message, 500, 'E_INVALID_THROTTLE_DRIVER_IMPLEMENTATION')
}
this._drivers[key] = implementation
}
/**
* Makes an instance of driver from given name.
*
* @method makeDriverInstance
*
* @param {String} name
*
* @return {Object}
*/
makeDriverInstance(name) {
const driver = drivers[name] || this._drivers[name]
if (!driver) {
const message = `${name} is not a valid throttle driver`
throw new InvalidArgumentException(message, 500, 'E_INVALID_THROTTLE_DRIVER')
}
return ioc.make(driver)
}
}
module.exports = new ThrottleManager()