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node-red-nodes/io/stomp/18-stomp.js

154 lines
5.0 KiB
JavaScript

module.exports = function(RED) {
"use strict";
var StompClient = require('stomp-client');
var querystring = require('querystring');
function StompServerNode(n) {
RED.nodes.createNode(this,n);
this.server = n.server;
this.port = n.port;
this.protocolversion = n.protocolversion;
this.vhost = n.vhost;
this.reconnectretries = n.reconnectretries || 999999;
this.reconnectdelay = (n.reconnectdelay || 15) * 1000;
this.name = n.name;
this.username = this.credentials.user;
this.password = this.credentials.password;
}
RED.nodes.registerType("stomp-server",StompServerNode,{
credentials: {
user: {type:"text"},
password: {type: "password"}
}
});
function StompInNode(n) {
RED.nodes.createNode(this,n);
this.server = n.server;
this.topic = n.topic;
this.serverConfig = RED.nodes.getNode(this.server);
this.stompClientOpts = {
address: this.serverConfig.server,
port: this.serverConfig.port * 1,
user: this.serverConfig.username,
pass: this.serverConfig.password,
protocolVersion: this.serverConfig.protocolversion,
reconnectOpts: {
retries: this.serverConfig.reconnectretries * 1,
delay: this.serverConfig.reconnectdelay * 1
}
};
if (this.serverConfig.vhost) {
this.stompClientOpts.vhost = this.serverConfig.vhost;
}
var node = this;
var msg = {topic:this.topic};
node.client = new StompClient(node.stompClientOpts);
node.client.on("connect", function() {
node.status({fill:"green",shape:"dot",text:"connected"});
});
node.client.on("reconnecting", function() {
node.status({fill:"red",shape:"ring",text:"reconnecting"});
node.warn("reconnecting");
});
node.client.on("error", function(error) {
node.status({fill:"grey",shape:"dot",text:"error"});
node.warn(error);
});
node.status({fill:"grey",shape:"ring",text:"connecting"});
node.client.connect(function(sessionId) {
node.log('subscribing to: '+node.topic);
node.client.subscribe(node.topic, function(body, headers) {
var newmsg={"headers":headers,"topic":node.topic}
try {
newmsg.payload = JSON.parse(body);
}
catch(e) {
newmsg.payload = body;
}
node.send(newmsg);
});
}, function(error) {
node.status({fill:"grey",shape:"dot",text:"error"});
node.warn(error);
});
node.on("close", function(done) {
if (node.client) {
// disconnect can accept a callback - but it is not always called.
node.client.disconnect();
}
done();
});
}
RED.nodes.registerType("stomp in",StompInNode);
function StompOutNode(n) {
RED.nodes.createNode(this,n);
this.server = n.server;
this.topic = n.topic;
this.serverConfig = RED.nodes.getNode(this.server);
this.stompClientOpts = {
address: this.serverConfig.server,
port: this.serverConfig.port * 1,
user: this.serverConfig.username,
pass: this.serverConfig.password,
protocolVersion: this.serverConfig.protocolversion,
reconnectOpts: {
retries: this.serverConfig.reconnectretries * 1,
delay: this.serverConfig.reconnectdelay * 1
}
};
if (this.serverConfig.vhost) {
this.stompClientOpts.vhost = this.serverConfig.vhost;
}
var node = this;
node.client = new StompClient(node.stompClientOpts);
node.client.on("connect", function() {
node.status({fill:"green",shape:"dot",text:"connected"});
});
node.client.on("reconnecting", function() {
node.status({fill:"red",shape:"ring",text:"reconnecting"});
node.warn("reconnecting");
});
node.client.on("error", function(error) {
node.status({fill:"grey",shape:"dot",text:"error"});
node.warn(error);
});
node.status({fill:"grey",shape:"ring",text:"connecting"});
node.client.connect(function(sessionId) {
}, function(error) {
node.status({fill:"grey",shape:"dot",text:"error"});
node.warn(error);
});
node.on("input", function(msg) {
node.client.publish(node.topic || msg.topic, msg.payload, msg.headers);
});
node.on("close", function(done) {
if (node.client) {
// disconnect can accept a callback - but it is not always called.
node.client.disconnect();
}
done();
});
}
RED.nodes.registerType("stomp out",StompOutNode);
};