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Merge pull request #14 from hardillb/master

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Pull request for Pause Node
This commit is contained in:
Nick O'Leary 2013-10-16 04:49:05 -07:00
commit f3ec90eee0
2 changed files with 231 additions and 0 deletions
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<!--
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.
-->
<!-- First, the content of the edit dialog is defined. -->
<script type="text/x-red" data-template-name="delay">
<div class="form-row">
<label for="node-input-pauseType"><i class="icon-tasks"></i> Action</label>
<select id="node-input-pauseType" style="width:270px !important">
<option value="delay">Delay message</option>
<option value="rate">Limit rate to</option>
</select>
</div>
<div id="delay-details" class="form-row">
<label for="node-input-timeout"><i class="icon-time"></i> For</label>
<input type="text" id="node-input-timeout" placeholder="Time" style="direction:rtl; width:50px !important">
<select id="node-input-timeoutUnits" style="width:200px !important">
<option value="milliseconds">Milliseconds</option>
<option value="seconds">Seconds</option>
<option value="minutes">Minutes</option>
<option value="hours">Hours</option>
<option value="days">Days</option>
</select>
</div>
<div id="rate-details" class="form-row">
<label for="node-input-rate"><i class="icon-time"></i> To</label>
<input type="text" id="node-input-rate" placeholder="1" style="direction:rtl; width:50px !important">
<label for="node-input-reateUnits">message(s) per</label>
<select id="node-input-rateUnits" style="width:140px !important">
<option value="second">Second</option>
<option value="minute">Minute</option>
<option value="hour">Hour</option>
<option value="day">Day</option>
</select>
</div>
<div class="form-row">
<label for="node-input-name"><i class="icon-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
</script>
<!-- Next, some simple help text is provided for the node. -->
<script type="text/x-red" data-help-name="delay">
<p>Introduces a delay into a flow or rate limts messges</p>
<p>Default delay is 5 seconds and rate limit of 1 msg/second, but both can be configured</p>
</script>
<!-- Finally, the node type is registered along with all of its properties -->
<script type="text/javascript">
RED.nodes.registerType('delay',{
category: 'function', // the palette category
color:"#E6E0F8",
defaults: { // defines the editable properties of the node
name: {value:""}, // along with default values.
pauseType: {value:"delay", required:true},
timeout: {value:"5", required:true, validate:RED.validators.number()},
timeoutUnits: {value:"seconds"},
rate: {value:"1", required:true, validate:RED.validators.number()},
rateUnits: {value: "second"}
},
inputs:1, // set the number of inputs - only 0 or 1
outputs:1, // set the number of outputs - 0 to n
icon: "arrow-in.png", // set the icon (held in public/icons)
label: function() { // sets the default label contents
if (this.pauseType == "delay") {
var units = this.timeoutUnits ? this.timeoutUnits.charAt(0) : "s";
return this.name||"delay "+this.timeout+" " + units;
} else if (this.pauseType == "rate") {
var units = this.rateUnits ? this.rateUnits.charAt(0) : "s";
return this.name||"limit "+this.rate+" msg/"+ units;
}
return "foo";
},
labelStyle: function() { // sets the class to apply to the label
return this.name?"node_label_italic":"";
},
oneditprepare: function() {
$( "#node-input-timeout" ).spinner();
$( "#node-input-rate" ).spinner();
if (this.pauseType == "delay") {
$("#delay-details").show();
$("#rate-details").hide();
} else if (this.pauseType == "rate") {
$("#delay-details").hide();
$("#rate-details").show();
}
if (!this.timeoutUnits) {
$("#node-input-timeoutUnits option").filter(function() {
return $(this).val() == 'seconds';
}).attr('selected', true);
}
$("#node-input-pauseType").on("change",function() {
if (this.value == "delay") {
$("#delay-details").show();
$("#rate-details").hide();
} else if (this.value == "rate") {
$("#delay-details").hide();
$("#rate-details").show();
}
});
}
});
</script>

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/**
* 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
// Require main module
var RED = require("../../red/red");
// main node definition
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 = [];
});
}
}
// register node
RED.nodes.registerType("delay",DelayNode);