mirror of
https://github.com/node-red/node-red.git
synced 2025-03-01 10:36:34 +00:00
pull out editor-client and editor-api
This commit is contained in:
159
packages/node_modules/@node-red/nodes/core/io/lib/mqttConnectionPool.js
generated
vendored
159
packages/node_modules/@node-red/nodes/core/io/lib/mqttConnectionPool.js
generated
vendored
@@ -1,159 +0,0 @@
|
||||
/**
|
||||
* Copyright JS Foundation and other contributors, http://js.foundation
|
||||
*
|
||||
* 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;
|
||||
|
||||
util.log("[warn] nodes/core/io/lib/mqttConnectionPool.js is deprecated and will be removed in a future release of Node-RED. Please report this usage to the Node-RED mailing list.");
|
||||
|
||||
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,ref) {
|
||||
ref = ref||0;
|
||||
subscriptions[topic] = subscriptions[topic]||{};
|
||||
|
||||
var sub = {
|
||||
topic:topic,
|
||||
qos:qos,
|
||||
handler:function(mtopic,mpayload,mqos,mretain) {
|
||||
if (matchTopic(topic,mtopic)) {
|
||||
callback(mtopic,mpayload,mqos,mretain);
|
||||
}
|
||||
},
|
||||
ref: ref
|
||||
};
|
||||
subscriptions[topic][ref] = sub;
|
||||
client.on('message',sub.handler);
|
||||
if (client.isConnected()) {
|
||||
client.subscribe(topic,qos);
|
||||
}
|
||||
},
|
||||
unsubscribe: function(topic,ref) {
|
||||
ref = ref||0;
|
||||
var sub = subscriptions[topic];
|
||||
if (sub) {
|
||||
if (sub[ref]) {
|
||||
client.removeListener('message',sub[ref].handler);
|
||||
delete sub[ref];
|
||||
}
|
||||
if (Object.keys(sub).length == 0) {
|
||||
delete subscriptions[topic];
|
||||
client.unsubscribe(topic);
|
||||
}
|
||||
}
|
||||
},
|
||||
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(ref) {
|
||||
|
||||
this._instances -= 1;
|
||||
if (this._instances == 0) {
|
||||
client.disconnect();
|
||||
client = null;
|
||||
delete connections[id];
|
||||
}
|
||||
},
|
||||
isConnected: function() {
|
||||
return client.isConnected();
|
||||
}
|
||||
};
|
||||
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 = s;
|
||||
var qos = 0;
|
||||
for (var r in subscriptions[s]) {
|
||||
qos = Math.max(qos,subscriptions[s][r].qos);
|
||||
}
|
||||
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];
|
||||
}
|
||||
};
|
Reference in New Issue
Block a user