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Merge pull request #3 from hugocore/master 

Node.js plugin - v0.1
master
Jim Heising 2014-07-16 09:31:33 -07:00
parent aad2b41053 e976bb4525
commit 08ca8d9de4
2 changed files with 54 additions and 45 deletions
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87
datasources/plugin_node.js
View File

@ -9,27 +9,22 @@
// └────────────────────────────────────────────────────────────────────┘ \\
(function() {
var nodeJSDatasource = function(settings, updateCallback) {
var self = this;
var currentSettings = settings;
var url;
var socket;
var newMessageCallback;
var self = this,
currentSettings = settings,
url,
socket,
newMessageCallback;
function onNewMessageHandler(message) {
console.debug("Message received %s", message);
var objdata = JSON.parse(message);
if (typeof objdata == "object") {
updateCallback(objdata);
} else {
updateCallback(data);
}
}
function joinRoom(roomName, roomEvent) {
@ -39,28 +34,34 @@
console.info("Joining room '%s' with event '%s'", roomName, roomEvent);
}
function discardSocket() {
// Disconnect datasource websocket
if (self.socket) {
self.socket.disconnect();
}
}
function connectToServer(url, rooms) {
// Establish connection with server
self.url = url;
self.socket = io.connect(self.url);
self.socket = io.connect(self.url,{'forceNew':true});
// Join the rooms
self.socket.on('connect', function() {
console.info("Connecting to Node.js at: %s", self.url);
// Join the rooms
_.each(rooms, function(roomConfig) {
var roomName = roomConfig.roomName;
var roomEvent = roomConfig.roomEvent;
if (!_.isUndefined(roomName) && !_.isUndefined(roomEvent)) {
joinRoom(roomName, roomEvent);
}
});
});
// Join the rooms
_.each(rooms, function(roomConfig) {
var roomName = roomConfig.roomName;
var roomEvent = roomConfig.roomEvent;
if (!_.isUndefined(roomName) && !_.isUndefined(roomEvent)) {
joinRoom(roomName, roomEvent);
}
});
self.socket.on('connect_error', function(object) {
console.error("It was not possible to connect to Node.js at: %s", self.url);
});
@ -70,38 +71,30 @@
});
self.socket.on('reconnect_failed', function(object) {
console.error("Stopping re-connecting to Node.js at: %s", self.url);
console.error("Re-connection to Node.js failed at: %s", self.url);
discardSocket();
});
}
function disconnecFromServer() {
// Disconnect any older socket
if (self.socket) {
self.socket.disconnect();
console.info("Disconnected from Node.js: %s", self.url);
}
}
function initializeDataSource() {
console.info("Subscribing to event: %s", currentSettings.eventName);
// Reset connection to server
disconnecFromServer();
discardSocket();
connectToServer(currentSettings.url, currentSettings.rooms);
// Subscribe to the events
var newEventName = currentSettings.eventName;
self.newMessageCallback = onNewMessageHandler;
self.socket.on(newEventName, function(message) {
self.newMessageCallback(message);
_.each(currentSettings.events, function(eventConfig) {
var event = eventConfig.eventName;
console.info("Subscribing to event: %s", event);
self.socket.on(event, function(message) {
self.newMessageCallback(message);
});
});
}
initializeDataSource();
this.updateNow = function() {
// Just seat back, relax and wait for incoming events
return;
@ -112,12 +105,15 @@
self.newMessageCallback = function(message) {
return;
};
discardSocket();
};
this.onSettingsChanged = function(newSettings) {
currentSettings = newSettings;
initializeDataSource();
};
initializeDataSource();
};
freeboard
@ -134,10 +130,15 @@
type : "text"
},
{
name : "eventName",
name : "events",
display_name : "Events",
description : "The name of the events you want this datasource to subscribe to.",
type : "text"
type : "array",
settings : [ {
name : "eventName",
display_name : "Event",
type : "text"
} ]
},
{
name : "rooms",

12
datasources/plugin_nodejs_sample/plugin_node_sample_client.html
View File

@ -106,12 +106,16 @@
"type": "node_js",
"settings": {
"url": "http://localhost:8989/shows",
"eventName": "house.stark.jon",
"rooms": [
{
"roomName": "got",
"roomEvent": "subscribe"
}
],
"events": [
{
"eventName": "house.stark.jon"
}
]
}
},
@ -120,12 +124,16 @@
"type": "node_js",
"settings": {
"url": "http://localhost:8989/shows",
"eventName": "house.lannister.tyrion",
"rooms": [
{
"roomName": "got",
"roomEvent": "subscribe"
}
],
"events": [
{
"eventName": "house.lannister.tyrion"
}
]
}
}