Fix license issues

[sdnc/oam.git] / dgbuilder / core_nodes / io / lib / mqttConnectionPool.js

diff --git a/dgbuilder/core_nodes/io/lib/mqttConnectionPool.js b/dgbuilder/core_nodes/io/lib/mqttConnectionPool.js
deleted file mode 100644 (file)
index d15f0fc..0000000
--- a/dgbuilder/core_nodes/io/lib/mqttConnectionPool.js
+++ /dev/null
@@ -1,128 +0,0 @@
-/**
- * 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 util = require("util");
-var mqtt = require("./mqtt");
-var settings = require(process.env.NODE_RED_HOME+"/red/red").settings;
-
-var connections = {};
-
-function matchTopic(ts,t) {
-    if (ts == "#") {
-        return true;
-    }
-    var re = new RegExp("^"+ts.replace(/([\[\]\?\(\)\\\\$\^\*\.|])/g,"\\$1").replace(/\+/g,"[^/]+").replace(/\/#$/,"(\/.*)?")+"$");
-    return re.test(t);
-}
-
-module.exports = {
-    get: function(broker,port,clientid,username,password,will) {
-        var id = "["+(username||"")+":"+(password||"")+"]["+(clientid||"")+"]@"+broker+":"+port;
-        if (!connections[id]) {
-            connections[id] = function() {
-                var uid = (1+Math.random()*4294967295).toString(16);
-                var client = mqtt.createClient(port,broker);
-                client.uid = uid;
-                client.setMaxListeners(0);
-                var options = {keepalive:15};
-                options.clientId = clientid || 'mqtt_' + (1+Math.random()*4294967295).toString(16);
-                options.username = username;
-                options.password = password;
-                options.will = will;
-                var queue = [];
-                var subscriptions = [];
-                var connecting = false;
-                var obj = {
-                    _instances: 0,
-                    publish: function(msg) {
-                        if (client.isConnected()) {
-                            client.publish(msg.topic,msg.payload,msg.qos,msg.retain);
-                        } else {
-                            if (!connecting) {
-                                connecting = true;
-                                client.connect(options);
-                            }
-                            queue.push(msg);
-                        }
-                    },
-                    subscribe: function(topic,qos,callback) {
-                        subscriptions.push({topic:topic,qos:qos,callback:callback});
-                        client.on('message',function(mtopic,mpayload,mqos,mretain) {
-                                if (matchTopic(topic,mtopic)) {
-                                    callback(mtopic,mpayload,mqos,mretain);
-                                }
-                        });
-                        if (client.isConnected()) {
-                            client.subscribe(topic,qos);
-                        }
-                    },
-                    on: function(a,b){
-                        client.on(a,b);
-                    },
-                    once: function(a,b){
-                        client.once(a,b);
-                    },
-                    connect: function() {
-                        if (client && !client.isConnected() && !connecting) {
-                            connecting = true;
-                            client.connect(options);
-                        }
-                    },
-                    disconnect: function() {
-                        this._instances -= 1;
-                        if (this._instances == 0) {
-                            client.disconnect();
-                            client = null;
-                            delete connections[id];
-                        }
-                    }
-                };
-                client.on('connect',function() {
-                        if (client) {
-                            util.log('[mqtt] ['+uid+'] connected to broker tcp://'+broker+':'+port);
-                            connecting = false;
-                            for (var s in subscriptions) {
-                                var topic = subscriptions[s].topic;
-                                var qos = subscriptions[s].qos;
-                                var callback = subscriptions[s].callback;
-                                client.subscribe(topic,qos);
-                            }
-                            //console.log("connected - publishing",queue.length,"messages");
-                            while(queue.length) {
-                                var msg = queue.shift();
-                                //console.log(msg);
-                                client.publish(msg.topic,msg.payload,msg.qos,msg.retain);
-                            }
-                        }
-                });
-                client.on('connectionlost', function(err) {
-                        util.log('[mqtt] ['+uid+'] connection lost to broker tcp://'+broker+':'+port);
-                        connecting = false;
-                        setTimeout(function() {
-                            obj.connect();
-                        }, settings.mqttReconnectTime||5000);
-                });
-                client.on('disconnect', function() {
-                        connecting = false;
-                        util.log('[mqtt] ['+uid+'] disconnected from broker tcp://'+broker+':'+port);
-                });
-
-                return obj
-            }();
-        }
-        connections[id]._instances += 1;
-        return connections[id];
-    }
-};