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| <div class="subTitle">org.apache.edgent.samples.apps.sensorAnalytics</div> |
| <h2 title="Class Sensor1" class="title">Class Sensor1</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
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| <pre>public class <span class="typeNameLabel">Sensor1</span> |
| extends java.lang.Object</pre> |
| <div class="block">Analytics for "Sensor1". |
| <p> |
| This sample demonstrates some common continuous sensor analytic themes. |
| <p> |
| In this case we have a simulated sensor producing 1000 samples per second |
| of an integer type in the range of 0-255. |
| <p> |
| The processing pipeline created is roughly: |
| <ul> |
| <li>Batched Data Reduction - reduce the sensor's 1000 samples per second |
| down to 1 sample per second simple statistical aggregation of the readings. |
| </li> |
| <li>Compute historical information - each 1hz sample is augmented |
| with a 30 second trailing average of the 1hz readings. |
| </li> |
| <li>Threshold detection - each 1hz sample's value is compared |
| against a target range and outliers are identified. |
| </li> |
| <li>Local logging - outliers are logged to a local file |
| </li> |
| <li>Publishing results to a MQTT broker: |
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| <li>when enabled, invdividual outliers are published.</li> |
| <li>Every 30 seconds a list of the last 10 outliers is published.</li> |
| </ul> |
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| The sample also demonstrates: |
| <ul> |
| <li>Dynamic configuration control - subscribe to a MQTT broker |
| to receive commands to adjust the threshold detection range value. |
| </li> |
| <li>Generally, the configuration of the processing is driven via an |
| external configuration description. |
| </li> |
| <li>Conditional stream tracing - configuration controlled inclusion of tracing. |
| </li> |
| <li>Use of <a href="../../../../../../org/apache/edgent/topology/TStream.html#tag-java.lang.String...-"><code>TStream.tag(String...)</code></a> to improve information provided by |
| the Edgent DevelopmentProvider console.</li> |
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| <th class="colOne" scope="col">Constructor and Description</th> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/samples/apps/sensorAnalytics/Sensor1.html#Sensor1-org.apache.edgent.topology.Topology-org.apache.edgent.samples.apps.sensorAnalytics.SensorAnalyticsApplication-">Sensor1</a></span>(<a href="../../../../../../org/apache/edgent/topology/Topology.html" title="interface in org.apache.edgent.topology">Topology</a> t, |
| <a href="../../../../../../org/apache/edgent/samples/apps/sensorAnalytics/SensorAnalyticsApplication.html" title="class in org.apache.edgent.samples.apps.sensorAnalytics">SensorAnalyticsApplication</a> app)</code> </td> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/samples/apps/sensorAnalytics/Sensor1.html#addAnalytics--">addAnalytics</a></span>()</code> |
| <div class="block">Add the sensor's analytics to the topology.</div> |
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| <h4>Sensor1</h4> |
| <pre>public Sensor1(<a href="../../../../../../org/apache/edgent/topology/Topology.html" title="interface in org.apache.edgent.topology">Topology</a> t, |
| <a href="../../../../../../org/apache/edgent/samples/apps/sensorAnalytics/SensorAnalyticsApplication.html" title="class in org.apache.edgent.samples.apps.sensorAnalytics">SensorAnalyticsApplication</a> app)</pre> |
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| <h4>addAnalytics</h4> |
| <pre>public void addAnalytics()</pre> |
| <div class="block">Add the sensor's analytics to the topology.</div> |
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