mirror of
https://github.com/node-red/node-red.git
synced 2023-10-10 13:36:53 +02:00
103 lines
2.9 KiB
JavaScript
103 lines
2.9 KiB
JavaScript
/**
|
|
* 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.
|
|
**/
|
|
|
|
// Simple node to introduce a pause into a flow
|
|
|
|
var RED = require("../../red/red");
|
|
|
|
function DelayNode(n) {
|
|
RED.nodes.createNode(this,n);
|
|
|
|
this.pauseType = n.pauseType;
|
|
this.timeoutUnits = n.timeoutUnits;
|
|
this.rateUnits = n.rateUnits;
|
|
|
|
if (n.timeoutUnits == "milliseconds") {
|
|
this.timeout = n.timout;
|
|
} else if (n.timeoutUnits == "seconds") {
|
|
this.timeout = n.timeout * 1000;
|
|
} else if (n.timeoutUnits == "minutes") {
|
|
this.timeout = n.timeout * (60 * 1000);
|
|
} else if (n.timeoutUnits == "hours") {
|
|
this.timeout = n.timeout * (60 * 60 * 1000);
|
|
} else if (n.timeoutUnits == "days") {
|
|
this.timeout = n.timeout * (24 * 60 * 60 * 1000);
|
|
}
|
|
|
|
if (n.rateUnits == "second") {
|
|
this.rate = 1000/n.rate;
|
|
} else if (n.rateUnits == "minute") {
|
|
this.rate = (60 * 1000)/n.rate;
|
|
} else if (n.rateUnits == "hour") {
|
|
this.rate = (60 * 60 * 1000)/n.rate;
|
|
} else if (n.rateUnits == "day") {
|
|
this.rate = (24 * 60 * 60 * 1000)/n.rate;
|
|
}
|
|
|
|
this.name = n.name;
|
|
this.idList = [];
|
|
this.buffer = [];
|
|
this.intervalID = -1;
|
|
var node= this;
|
|
|
|
if (this.pauseType == "delay") {
|
|
this.on("input", function(msg) {
|
|
var node= this;
|
|
var id;
|
|
id = setTimeout(function(){
|
|
node.idList.splice(node.idList.indexOf(id),1);
|
|
node.send(msg);
|
|
}, node.timeout);
|
|
this.idList.push(id);
|
|
});
|
|
|
|
this.on("close", function() {
|
|
for (var i=0; i<this.idList.length; i++ ) {
|
|
clearTimeout(this.idList[i]);
|
|
}
|
|
this.idList = [];
|
|
});
|
|
} else if (this.pauseType == "rate") {
|
|
|
|
this.on("input", function(msg) {
|
|
if ( node.intervalID != -1) {
|
|
node.buffer.push(msg);
|
|
if (node.buffer.length > 1000) {
|
|
node.warn(this.name + " buffer exceeded 1000 messages");
|
|
}
|
|
} else {
|
|
node.send(msg);
|
|
node.intervalID = setInterval(function() {
|
|
if (node.buffer.length == 0) {
|
|
clearInterval(node.intervalID);
|
|
node.intervalID = -1;
|
|
}
|
|
|
|
if (node.buffer.length > 0) {
|
|
node.send(node.buffer.shift());
|
|
}
|
|
},node.rate);
|
|
}
|
|
});
|
|
|
|
this.on("close", function() {
|
|
clearInterval(this.intervalID);
|
|
this.buffer = [];
|
|
});
|
|
}
|
|
}
|
|
RED.nodes.registerType("delay",DelayNode);
|