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94 lines
2.2 KiB
JavaScript
Executable file
94 lines
2.2 KiB
JavaScript
Executable file
/* global Marionette */
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(function(module, ns) {
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'use strict';
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var debug = require('debug')('marionette:command-stream');
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var Responder = ns.require('responder');
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var wire = require('json-wire-protocol');
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/**
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* Command stream accepts a socket or any event
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* emitter that will emit data events
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*
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* @class Marionette.CommandStream
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* @param {EventEmitter} socket socket instance.
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* @constructor
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*/
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function CommandStream(socket) {
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this.socket = socket;
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this._handler = new wire.Stream();
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this._handler.on('data', this.emit.bind(this, this.commandEvent));
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Responder.apply(this);
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socket.on('data', this._handler.write.bind(this._handler));
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socket.on('error', function(err) {
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this.emit('error', err);
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}.bind(this));
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}
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var proto = CommandStream.prototype = Object.create(
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Responder.prototype
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);
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/**
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* name of the event this class
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* will emit when a response to a
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* command is received.
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*
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* @property commandEvent
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* @type String
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*/
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proto.commandEvent = 'command';
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/**
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* Parses command into a string to
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* be sent over a tcp socket to marionette.
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*
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*
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* @method stringify
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* @param {Object} command marionette command.
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* @return {String} command as a string.
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*/
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proto.stringify = function stringify(command) {
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return wire.stringify(command);
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};
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/**
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* Writes a command to the socket.
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* Handles conversion and formatting of object.
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*
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* @method send
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* @param {Object} data marionette command.
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*/
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proto.send = function send(data) {
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debug('writing ', data, 'to socket');
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if (this.socket.write) {
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//nodejs socket
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this.socket.write(this.stringify(data), 'utf8');
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} else {
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//moztcp socket
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this.socket.send(this.stringify(data));
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}
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};
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/**
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* Adds a chunk (string or buffer) to the
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* total buffer of this instance.
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*
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* @this
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* @param {String|Buffer} buffer buffer or string to add.
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*/
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proto.add = function add(buffer) {
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this._handler.write(buffer);
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};
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module.exports = exports = CommandStream;
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}.apply(
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this,
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(this.Marionette) ?
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[Marionette('command-stream'), Marionette] :
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[module, require('./marionette')]
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));
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