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<div class="subTitle">org.apache.edgent.samples.apps</div>
<h2 title="Class ApplicationUtilities" class="title">Class ApplicationUtilities</h2>
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<li>java.lang.Object</li>
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<pre>public class <span class="typeNameLabel">ApplicationUtilities</span>
extends java.lang.Object</pre>
<div class="block">Some general purpose application configuration driven utilities.
<p>
Utilities include:
<ul>
<li>Get a property name for a sensor configuration item</li>
<li>Get a Range value for a sensor range item</li>
<li>Log a stream</li>
<li>Conditionally trace a stream</li>
</ul></div>
</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/ApplicationUtilities.html#ApplicationUtilities-java.util.Properties-">ApplicationUtilities</a></span>(java.util.Properties&nbsp;props)</code>&nbsp;</td>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code><a href="../../../../../org/apache/edgent/analytics/sensors/Range.html" title="class in org.apache.edgent.analytics.sensors">Range</a>&lt;java.lang.Byte&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/ApplicationUtilities.html#getRangeByte-java.lang.String-java.lang.String-">getRangeByte</a></span>(java.lang.String&nbsp;sensorId,
java.lang.String&nbsp;label)</code>
<div class="block">Get the Range for a sensor range configuration item.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/edgent/analytics/sensors/Range.html" title="class in org.apache.edgent.analytics.sensors">Range</a>&lt;java.lang.Double&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/ApplicationUtilities.html#getRangeDouble-java.lang.String-java.lang.String-">getRangeDouble</a></span>(java.lang.String&nbsp;sensorId,
java.lang.String&nbsp;label)</code>
<div class="block">Get the Range for a sensor range configuration item.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/edgent/analytics/sensors/Range.html" title="class in org.apache.edgent.analytics.sensors">Range</a>&lt;java.lang.Float&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/ApplicationUtilities.html#getRangeFloat-java.lang.String-java.lang.String-">getRangeFloat</a></span>(java.lang.String&nbsp;sensorId,
java.lang.String&nbsp;label)</code>
<div class="block">Get the Range for a sensor range configuration item.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/edgent/analytics/sensors/Range.html" title="class in org.apache.edgent.analytics.sensors">Range</a>&lt;java.lang.Integer&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/ApplicationUtilities.html#getRangeInteger-java.lang.String-java.lang.String-">getRangeInteger</a></span>(java.lang.String&nbsp;sensorId,
java.lang.String&nbsp;label)</code>
<div class="block">Get the Range for a sensor range configuration item.</div>
</td>
</tr>
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<td class="colFirst"><code><a href="../../../../../org/apache/edgent/analytics/sensors/Range.html" title="class in org.apache.edgent.analytics.sensors">Range</a>&lt;java.lang.Short&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/ApplicationUtilities.html#getRangeShort-java.lang.String-java.lang.String-">getRangeShort</a></span>(java.lang.String&nbsp;sensorId,
java.lang.String&nbsp;label)</code>
<div class="block">Get the Range for a sensor range configuration item.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/ApplicationUtilities.html#getSensorPropertyName-java.lang.String-java.lang.String-java.lang.String-">getSensorPropertyName</a></span>(java.lang.String&nbsp;sensorId,
java.lang.String&nbsp;label,
java.lang.String&nbsp;kind)</code>
<div class="block">Get the property name for a sensor's configuration item.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>&lt;T&gt;&nbsp;<a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;T&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/ApplicationUtilities.html#logStream-org.apache.edgent.topology.TStream-java.lang.String-java.lang.String-">logStream</a></span>(<a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;T&gt;&nbsp;stream,
java.lang.String&nbsp;eventTag,
java.lang.String&nbsp;baseName)</code>
<div class="block">Log every tuple on the stream using the <code>FileStreams</code> connector.</div>
</td>
</tr>
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<td class="colFirst"><code>&lt;T&gt;&nbsp;<a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;T&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/ApplicationUtilities.html#traceStream-org.apache.edgent.topology.TStream-java.lang.String-org.apache.edgent.function.Supplier-">traceStream</a></span>(<a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;T&gt;&nbsp;stream,
java.lang.String&nbsp;sensorId,
<a href="../../../../../org/apache/edgent/function/Supplier.html" title="interface in org.apache.edgent.function">Supplier</a>&lt;java.lang.String&gt;&nbsp;label)</code>
<div class="block">Trace a stream to System.out if the sensor id's "label" has been configured
to enable tracing.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>&lt;T&gt;&nbsp;<a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;T&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/samples/apps/ApplicationUtilities.html#traceStream-org.apache.edgent.topology.TStream-org.apache.edgent.function.Supplier-">traceStream</a></span>(<a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;T&gt;&nbsp;stream,
<a href="../../../../../org/apache/edgent/function/Supplier.html" title="interface in org.apache.edgent.function">Supplier</a>&lt;java.lang.String&gt;&nbsp;label)</code>
<div class="block">Trace a stream to System.out if the "label" has been configured
to enable tracing.</div>
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<pre>public&nbsp;ApplicationUtilities(java.util.Properties&nbsp;props)</pre>
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<pre>public&nbsp;&lt;T&gt;&nbsp;<a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;T&gt;&nbsp;traceStream(<a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;T&gt;&nbsp;stream,
java.lang.String&nbsp;sensorId,
<a href="../../../../../org/apache/edgent/function/Supplier.html" title="interface in org.apache.edgent.function">Supplier</a>&lt;java.lang.String&gt;&nbsp;label)</pre>
<div class="block">Trace a stream to System.out if the sensor id's "label" has been configured
to enable tracing.
<p>
If tracing has not been enabled in the config, the topology will not
be augmented to trace the stream.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - Tuple type</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>stream</code> - the stream to trace</dd>
<dd><code>sensorId</code> - the sensor id</dd>
<dd><code>label</code> - some unique label</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the input stream</dd>
</dl>
</li>
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<pre>public&nbsp;&lt;T&gt;&nbsp;<a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;T&gt;&nbsp;traceStream(<a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;T&gt;&nbsp;stream,
<a href="../../../../../org/apache/edgent/function/Supplier.html" title="interface in org.apache.edgent.function">Supplier</a>&lt;java.lang.String&gt;&nbsp;label)</pre>
<div class="block">Trace a stream to System.out if the "label" has been configured
to enable tracing.
<p>
If tracing has not been enabled in the config, the topology will not
be augmented to trace the stream.</div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - Tuple type</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>stream</code> - the stream to trace</dd>
<dd><code>label</code> - some unique label</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the input stream</dd>
</dl>
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<h4>getSensorPropertyName</h4>
<pre>public&nbsp;java.lang.String&nbsp;getSensorPropertyName(java.lang.String&nbsp;sensorId,
java.lang.String&nbsp;label,
java.lang.String&nbsp;kind)</pre>
<div class="block">Get the property name for a sensor's configuration item.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>sensorId</code> - the sensor's id</dd>
<dd><code>label</code> - the label for an instance of "kind" (e.g., "tempThreshold")</dd>
<dd><code>kind</code> - the kind of configuration item (e.g., "range")</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the configuration property name</dd>
</dl>
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<pre>public&nbsp;<a href="../../../../../org/apache/edgent/analytics/sensors/Range.html" title="class in org.apache.edgent.analytics.sensors">Range</a>&lt;java.lang.Integer&gt;&nbsp;getRangeInteger(java.lang.String&nbsp;sensorId,
java.lang.String&nbsp;label)</pre>
<div class="block">Get the Range for a sensor range configuration item.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>sensorId</code> - the sensor's id</dd>
<dd><code>label</code> - the range's label</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the Range</dd>
</dl>
</li>
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<pre>public&nbsp;<a href="../../../../../org/apache/edgent/analytics/sensors/Range.html" title="class in org.apache.edgent.analytics.sensors">Range</a>&lt;java.lang.Byte&gt;&nbsp;getRangeByte(java.lang.String&nbsp;sensorId,
java.lang.String&nbsp;label)</pre>
<div class="block">Get the Range for a sensor range configuration item.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>sensorId</code> - the sensor's id</dd>
<dd><code>label</code> - the range's label</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the Range</dd>
</dl>
</li>
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<pre>public&nbsp;<a href="../../../../../org/apache/edgent/analytics/sensors/Range.html" title="class in org.apache.edgent.analytics.sensors">Range</a>&lt;java.lang.Short&gt;&nbsp;getRangeShort(java.lang.String&nbsp;sensorId,
java.lang.String&nbsp;label)</pre>
<div class="block">Get the Range for a sensor range configuration item.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>sensorId</code> - the sensor's id</dd>
<dd><code>label</code> - the range's label</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the Range</dd>
</dl>
</li>
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<pre>public&nbsp;<a href="../../../../../org/apache/edgent/analytics/sensors/Range.html" title="class in org.apache.edgent.analytics.sensors">Range</a>&lt;java.lang.Float&gt;&nbsp;getRangeFloat(java.lang.String&nbsp;sensorId,
java.lang.String&nbsp;label)</pre>
<div class="block">Get the Range for a sensor range configuration item.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>sensorId</code> - the sensor's id</dd>
<dd><code>label</code> - the range's label</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the Range</dd>
</dl>
</li>
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<pre>public&nbsp;<a href="../../../../../org/apache/edgent/analytics/sensors/Range.html" title="class in org.apache.edgent.analytics.sensors">Range</a>&lt;java.lang.Double&gt;&nbsp;getRangeDouble(java.lang.String&nbsp;sensorId,
java.lang.String&nbsp;label)</pre>
<div class="block">Get the Range for a sensor range configuration item.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>sensorId</code> - the sensor's id</dd>
<dd><code>label</code> - the range's label</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the Range</dd>
</dl>
</li>
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<pre>public&nbsp;&lt;T&gt;&nbsp;<a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;T&gt;&nbsp;logStream(<a href="../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a>&lt;T&gt;&nbsp;stream,
java.lang.String&nbsp;eventTag,
java.lang.String&nbsp;baseName)</pre>
<div class="block">Log every tuple on the stream using the <code>FileStreams</code> connector.
<p>
The logs are added to the directory as specified
by the "application.log.dir" property.
The directory will be created as needed.
<p>
The "active" (open / being written) log file name is <code>.&lt;baseName&gt;</code>.
<br>
Completed stable logs have a name of <code>&lt;baseName&gt;_YYYYMMDD_HHMMSS</code>.
<p>
The log entry format being used is:
<code>[&lt;date&gt;] [&lt;eventTag&gt;] &lt;tuple&gt;.toString()</code>
<p>
See <a href="../../../../../org/apache/edgent/connectors/file/FileStreams.html#textFileWriter-org.apache.edgent.topology.TStream-org.apache.edgent.function.Supplier-org.apache.edgent.function.Supplier-"><code>FileStreams.textFileWriter(TStream, org.apache.edgent.function.Supplier, org.apache.edgent.function.Supplier)</code></a></div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - Tuple type</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>stream</code> - the TStream</dd>
<dd><code>baseName</code> - the base log name</dd>
<dd><code>eventTag</code> - a tag that gets added to the log entry</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the input stream</dd>
</dl>
</li>
</ul>
</li>
</ul>
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