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mirror of https://github.com/node-red/node-red.git synced 2023-10-10 13:36:53 +02:00

Start to add server-side events

This commit is contained in:
Nicholas O'Leary 2013-09-09 20:03:22 +01:00
parent 77a6b0a71d
commit 95675bc6bc
3 changed files with 42 additions and 7 deletions

19
red/events.js Normal file
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@ -0,0 +1,19 @@
/**
* Copyright 2013 IBM Corp.
*
* 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.
**/
var events = require("events");
module.exports = new events.EventEmitter();

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@ -14,9 +14,9 @@
* limitations under the License. * limitations under the License.
**/ **/
var util = require("util"); var util = require("util");
var events = require("events"); var EventEmitter = require("events").EventEmitter;
var fs = require("fs"); var fs = require("fs");
var events = require("./events");
function getCallerFilename(type) { function getCallerFilename(type) {
//if (type == "summary") { //if (type == "summary") {
@ -59,9 +59,11 @@ var registry = (function() {
return nodes[i]; return nodes[i];
}, },
clear: function() { clear: function() {
events.emit("nodes-stopping");
for (var n in nodes) { for (var n in nodes) {
nodes[n].close(); nodes[n].close();
} }
events.emit("nodes-stopped");
nodes = {}; nodes = {};
}, },
@ -72,7 +74,7 @@ var registry = (function() {
return obj; return obj;
})(); })();
var ConsoleLogHandler = new events.EventEmitter(); var ConsoleLogHandler = new EventEmitter();
ConsoleLogHandler.on("log",function(msg) { ConsoleLogHandler.on("log",function(msg) {
util.log("["+msg.level+"] ["+msg.type+":"+(msg.name||msg.id)+"] "+msg.msg); util.log("["+msg.level+"] ["+msg.type+":"+(msg.name||msg.id)+"] "+msg.msg);
}); });
@ -128,7 +130,7 @@ function Node(n) {
} }
this.wires = n.wires||[]; this.wires = n.wires||[];
} }
util.inherits(Node,events.EventEmitter); util.inherits(Node,EventEmitter);
Node.prototype.close = function() { Node.prototype.close = function() {
// called when a node is removed // called when a node is removed
@ -253,6 +255,8 @@ module.exports.load = function() {
} }
loadNodes("nodes"); loadNodes("nodes");
events.emit("nodes-loaded");
} }
@ -261,7 +265,10 @@ module.exports.getNode = function(nid) {
return registry.get(nid); return registry.get(nid);
} }
module.exports.parseConfig = function(conf) { module.exports.parseConfig = function(conf) {
registry.clear(); registry.clear();
events.emit("nodes-starting");
for (var i in conf) { for (var i in conf) {
var nn = null; var nn = null;
var nt = node_type_registry.get(conf[i].type); var nt = node_type_registry.get(conf[i].type);
@ -286,5 +293,7 @@ module.exports.parseConfig = function(conf) {
if (deletedCredentials) { if (deletedCredentials) {
saveCredentialsFile(); saveCredentialsFile();
} }
events.emit("nodes-started");
} }

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@ -14,15 +14,22 @@
* limitations under the License. * limitations under the License.
**/ **/
var events = require("./events");
var server = require("./server"); var server = require("./server");
var nodes = require("./nodes"); var nodes = require("./nodes");
var library = require("./library"); var library = require("./library");
var settings = require("../settings"); var settings = require("../settings");
module.exports = {
var events = require("events");
var RED = {
nodes: nodes, nodes: nodes,
app: server.app, app: server.app,
server: server.server, server: server.server,
settings: settings, settings: settings,
library: library library: library,
} events: events
};
module.exports = RED;