cylon/lib/adaptor.js

90 lines
2.1 KiB
JavaScript

"use strict";
var Basestar = require("./basestar"),
Utils = require("./utils"),
_ = require("./utils/helpers");
function formatErrorMessage(name, message) {
return ["Error in connection", "'" + name + "'", "- " + message].join(" ");
}
/**
* Adaptor class
*
* @constructor Adaptor
*
* @param {Object} [opts] adaptor options
* @param {String} [opts.name] the adaptor's name
* @param {Object} [opts.robot] the robot the adaptor belongs to
* @param {Object} [opts.host] the host the adaptor will connect to
* @param {Object} [opts.port] the port the adaptor will connect to
*/
var Adaptor = module.exports = function Adaptor(opts) {
Adaptor.__super__.constructor.apply(this, arguments);
opts = opts || {};
this.name = opts.name;
// the Robot the adaptor belongs to
this.robot = opts.robot;
// some default options
this.host = opts.host;
this.port = opts.port;
// misc. details provided in args hash
this.details = {};
_.each(opts, function(opt, name) {
if (!_.includes(["robot", "name", "adaptor", "events"], name)) {
this.details[name] = opt;
}
}, this);
};
Utils.subclass(Adaptor, Basestar);
/**
* A base connect function. Must be overwritten by a descendent.
*
* @throws Error if not overridden by a child class
* @return {void}
*/
Adaptor.prototype.connect = function() {
var message = formatErrorMessage(
this.name,
"Adaptor#connect method must be overwritten by descendant classes."
);
throw new Error(message);
};
/**
* A base disconnect function. Must be overwritten by a descendent.
*
* @throws Error if not overridden by a child class
* @return {void}
*/
Adaptor.prototype.disconnect = function() {
var message = formatErrorMessage(
this.name,
"Adaptor#disconnect method must be overwritten by descendant classes."
);
throw new Error(message);
};
/**
* Expresses the Adaptor in a JSON-serializable format
*
* @return {Object} a representation of the Adaptor in a serializable format
*/
Adaptor.prototype.toJSON = function() {
return {
name: this.name,
adaptor: this.constructor.name || this.name,
details: this.details
};
};