node-red-contrib-iot-virtual-device/nodes/40virtual-device-gen-event.html

A set of nodes to help you create simulated IoT devices connected to IBM Watson IoT Platform.

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<!-- generate event-->


<script type="text/x-red" data-template-name="generate event">
<div class="form-row">
<label for="node-input-name" style="width:130px;"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Send Event" style="width:300px;">
</div>


<div class="form-row">
<label for="node-input-deviceId" style="width:130px;"><i class="fa fa-street-view"></i> Device Id</label>
<input type="text" id="node-input-deviceId"  style="width:300px;">
</div>

<div class="form-row" id = "node-input-schema-div">
<label for="node-input-schema" id="node-input-schemaLabel" style="width:130px;"><i class="fa fa-sitemap"></i> Device Schema</label>
<input type="text" id="node-input-schema" style="width:300px;">
</div>

<div class="form-row">
<label for="node-input-evt" id="node-input-evtLabel" style="width:130px;"><i class="fa fa-bolt"></i> Event</label>
<select id="node-input-evt"  style="width:300px;">
</select>
</div>
<div class="form-tips"><b>Tip:</b> Leave the device Id blank if you want to set it by using <b>msg.payload.deviceId</b>.</div>
</script>


<script type="text/x-red" data-help-name="generate event">
<p>
Connect this node to IBM IoT Output node for sending the virtual device event
where the payload values are taken from the device instance properties.
</p>
<p>
<ul>
<li><h4>Input:</h4></li>
<ul>
<li><code>msg.payload.deviceId</code>: the ID of the device</li>
<li><code>msg.payload.eventName</code>: the name of the event (as specified in the schema)</li>
</ul>
<li><h4>Output:</h4></li>
<p>
A message with all necessary fields to be sent via an IBM IoT output node.
</p>
</ul>
</p>

</script>



<script type="text/javascript">
RED.nodes.registerType('generate event',{
	category: 'Virtual_IoT_Device',
	color:"#5AAAFA",
	defaults: {
		deviceId: {value:""},
		schema: {type:"Device Schema", required: false},
		evt: {value:""},
		name: { value:"" }
	},
	inputs:1,
	outputs:1,
	icon: "vdEvent.png",
	label: function() {
		return this.name || "simulated device event";
	},
	labelStyle: function() {
		return this.name ? "node_label_italic" : "";
	},
	oneditsave: function() {
	},
	oneditprepare: function() {
		var _this = this;

		function populateEventsFromSchema(schemaId){
			$('#node-input-evt').find('option').remove();
			if(!schemaId || schemaId === "") return;
			RED.nodes.eachConfig(function(config) {
				if(schemaId === config.id){
					for (var i=0; i<config.evts.length; i++) {
						var evt = config.evts[i];
						$('#node-input-evt').append($('<option>', {
							value: evt.guid,
							text: evt.name
						}));
					}
				}
			});
			$("#node-input-evt").val(_this.evt);
		}


		$("#node-input-schema").change(function() {
			var schemaId = $("#node-input-schema").val();
			populateEventsFromSchema(schemaId);
		});

		populateEventsFromSchema(this.schema);

	}
});

</script>