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| <h2 title="Class SensorsAggregates" class="title">Class SensorsAggregates</h2> |
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| <ul class="inheritance"> |
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| <pre>public class <span class="typeNameLabel">SensorsAggregates</span> |
| extends java.lang.Object</pre> |
| <div class="block">Aggregation of sensor readings. |
| |
| Demonstrates partitioned aggregation and filtering of simulated sensors |
| that are bursty in nature, so that only intermittently |
| is the data output to <code>System.out</code>. |
| <P> |
| The two sensors are read as independent streams but combined |
| into a single stream and then aggregated across the last 50 readings |
| using windows. The window is partitioned by the sensor name |
| so that each sensor will have its own independent window. |
| This partitioning is automatic so that the same code would |
| work if readings from one hundred different sensors were |
| on the same stream, is it just driven by a key function. |
| <BR> |
| The windows are then aggregated using Apache Common Math |
| provided statistics and the final stream filtered so |
| that it will only contain values when each sensor |
| is (independently) out of range. |
| </P></div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/edgent/samples/utils/sensor/SimulatedSensors.html#burstySensor-org.apache.edgent.topology.Topology-java.lang.String-"><code>SimulatedSensors.burstySensor(Topology, String)</code></a></dd> |
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| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/topology/SensorsAggregates.html#main-java.lang.String:A-">main</a></span>(java.lang.String[] args)</code> |
| <div class="block">Run a topology with two bursty sensors printing them to standard out.</div> |
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| <td class="colFirst"><code>static <a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><com.google.gson.JsonObject></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/topology/SensorsAggregates.html#sensorsAB-org.apache.edgent.topology.Topology-">sensorsAB</a></span>(<a href="../../../../../org/apache/edgent/topology/Topology.html" title="interface in org.apache.edgent.topology">Topology</a> topology)</code> |
| <div class="block">Create a stream containing two aggregates from two bursty |
| sensors A and B that only produces output when the sensors |
| (independently) are having a burst period out of their normal range.</div> |
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| <h4>SensorsAggregates</h4> |
| <pre>public SensorsAggregates()</pre> |
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| <h4>main</h4> |
| <pre>public static void main(java.lang.String[] args) |
| throws java.lang.Exception</pre> |
| <div class="block">Run a topology with two bursty sensors printing them to standard out.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>args</code> - command arguments</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.Exception</code> - on failure</dd> |
| </dl> |
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| <h4>sensorsAB</h4> |
| <pre>public static <a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><com.google.gson.JsonObject> sensorsAB(<a href="../../../../../org/apache/edgent/topology/Topology.html" title="interface in org.apache.edgent.topology">Topology</a> topology)</pre> |
| <div class="block">Create a stream containing two aggregates from two bursty |
| sensors A and B that only produces output when the sensors |
| (independently) are having a burst period out of their normal range.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>topology</code> - Topology to add the sub-graph to.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Stream containing two aggregates from two bursty |
| sensors A and B</dd> |
| </dl> |
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