alex
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pdu_jctrl

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<h2 title="Class gpio_java" class="title">Class gpio_java</h2>
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<pre>public class <span class="typeNameLabel">gpio_java</span>
extends java.lang.Object</pre>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<td class="colFirst"><code>static java.lang.String[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="gpio_java.html#action">action</a></span></code>
<div class="block">Array with all allowed actions.</div>
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<td class="colFirst"><code>static java.lang.String[][]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="gpio_java.html#rel_map">rel_map</a></span></code>
<div class="block">Mapping from generic relay name to particular gpio port.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="gpio_java.html#gpio_java--">gpio_java</a></span>()</code>&nbsp;</td>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="gpio_java.html#checkargs-java.lang.String:A-">checkargs</a></span>(java.lang.String[]&nbsp;argumens)</code>
<div class="block">The checkargs method checks whether two correct arguments have been entered.</div>
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<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="gpio_java.html#gpio_cmdhandler-java.lang.String-java.lang.String-">gpio_cmdhandler</a></span>(java.lang.String&nbsp;port,
               java.lang.String&nbsp;cmd)</code>
<div class="block">The gpio_cmdhandler method switches the relays on, off or returns the status.</div>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="gpio_java.html#gpio_getport-java.lang.String-">gpio_getport</a></span>(java.lang.String&nbsp;port)</code>
<div class="block">The gpio_getport method searches in the rel_map variable for the correct port and return index.</div>
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<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="gpio_java.html#gpio_read_status-java.lang.String-">gpio_read_status</a></span>(java.lang.String&nbsp;port)</code>
<div class="block">The method checks the status and displays it in the command line.</div>
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<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="gpio_java.html#init_gpio--">init_gpio</a></span>()</code>
<div class="block">The init_gpio method defines all relevant GPIO ports as output.</div>
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<td class="colFirst"><code>static java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="gpio_java.html#launchcmd-java.lang.String-">launchcmd</a></span>(java.lang.String&nbsp;cmd)</code>
<div class="block">The launchcmd method runs the command.</div>
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<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="gpio_java.html#main-java.lang.String:A-">main</a></span>(java.lang.String[]&nbsp;args)</code>
<div class="block">Implement the main function of the application gpio_java.</div>
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<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="gpio_java.html#show_usage--">show_usage</a></span>()</code>
<div class="block">The show_usage method provides assistance in case of wrong input.</div>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>rel_map</h4>
<pre>public static&nbsp;java.lang.String[][] rel_map</pre>
<div class="block">Mapping from generic relay name to particular gpio port.</div>
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<h4>action</h4>
<pre>public static&nbsp;java.lang.String[] action</pre>
<div class="block">Array with all allowed actions.</div>
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<h4>gpio_java</h4>
<pre>public&nbsp;gpio_java()</pre>
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<h4>main</h4>
<pre>public static&nbsp;void&nbsp;main(java.lang.String[]&nbsp;args)</pre>
<div class="block">Implement the main function of the application gpio_java.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>args</code> - The passing argument in the commandline.</dd>
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<pre>public static&nbsp;void&nbsp;checkargs(java.lang.String[]&nbsp;argumens)</pre>
<div class="block">The checkargs method checks whether two correct arguments have been entered.
  If not, an error message appears.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>argumens</code> - Commandline argument</dd>
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<h4>init_gpio</h4>
<pre>public static&nbsp;void&nbsp;init_gpio()</pre>
<div class="block">The init_gpio method defines all relevant GPIO ports as output.</div>
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<h4>gpio_getport</h4>
<pre>public static&nbsp;int&nbsp;gpio_getport(java.lang.String&nbsp;port)</pre>
<div class="block">The gpio_getport method searches in the rel_map variable for the correct port and return index.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>port</code> - relay(rel1-rel8)</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>idx returns an index. The index allows access to the array rel_map. If an error occurs in the function, the value -1 is returned.</dd>
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<h4>gpio_cmdhandler</h4>
<pre>public static&nbsp;void&nbsp;gpio_cmdhandler(java.lang.String&nbsp;port,
                                   java.lang.String&nbsp;cmd)</pre>
<div class="block">The gpio_cmdhandler method switches the relays on, off or returns the status.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>port</code> - relay(rel1-rel8)</dd>
<dd><code>cmd</code> - action (on/off/status)</dd>
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<h4>gpio_read_status</h4>
<pre>public static&nbsp;void&nbsp;gpio_read_status(java.lang.String&nbsp;port)</pre>
<div class="block">The method checks the status and displays it in the command line.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>port</code> - the relay board</dd>
</dl>
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<pre>public static&nbsp;void&nbsp;show_usage()</pre>
<div class="block">The show_usage method provides assistance in case of wrong input.</div>
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<h4>launchcmd</h4>
<pre>public static&nbsp;java.lang.String&nbsp;launchcmd(java.lang.String&nbsp;cmd)</pre>
<div class="block">The launchcmd method runs the command.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cmd</code> - a specified system command.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>retvalue returns a string</dd>
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