craftbeerpi4-pione/docs/step.html
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<div class="section" id="brewing-step">
<h1>Brewing Step<a class="headerlink" href="#brewing-step" title="Permalink to this headline"></a></h1>
<div class="section" id="stepcontroller">
<h2>StepController<a class="headerlink" href="#stepcontroller" title="Permalink to this headline"></a></h2>
<dl class="class">
<dt id="cbpi.controller.step_controller.StepController">
<em class="property">class </em><code class="descclassname">cbpi.controller.step_controller.</code><code class="descname">StepController</code><span class="sig-paren">(</span><em>cbpi</em><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.controller.step_controller.StepController" title="Permalink to this definition"></a></dt>
<dd><p>The Step Controller. This controller is responsible to start and stop the brewing steps.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Undoc-members:</th><td class="field-body"></td>
</tr>
<tr class="field-even field"><th class="field-name" colspan="2">Show-inheritance:</th></tr>
<tr class="field-even field"><td>&#160;</td><td class="field-body"></td>
</tr>
</tbody>
</table>
<dl class="method">
<dt id="cbpi.controller.step_controller.StepController.handle_action">
<code class="descname">handle_action</code><span class="sig-paren">(</span><em>action</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.controller.step_controller.StepController.handle_action" title="Permalink to this definition"></a></dt>
<dd><p>Event Handler for “step/action”.
It invokes the provided method name on the current step</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>action</strong> the method name which will be invoked</li>
<li><strong>kwargs</strong> </li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">None</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="cbpi.controller.step_controller.StepController.handle_reset">
<code class="descname">handle_reset</code><span class="sig-paren">(</span><em>**kwargs</em><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.controller.step_controller.StepController.handle_reset" title="Permalink to this definition"></a></dt>
<dd><p>Event Handler for “step/reset”.
Resets the current step</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>kwargs</strong> </td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">None</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="cbpi.controller.step_controller.StepController.init">
<code class="descname">init</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.controller.step_controller.StepController.init" title="Permalink to this definition"></a></dt>
<dd><p>Initializer of the the Step Controller.
:return:</p>
</dd></dl>
<dl class="method">
<dt id="cbpi.controller.step_controller.StepController.next">
<code class="descname">next</code><span class="sig-paren">(</span><em>**kwargs</em><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.controller.step_controller.StepController.next" title="Permalink to this definition"></a></dt>
<dd><p>Event Handler for “step/next”.
It start the next step</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>kwargs</strong> </td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">None</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="cbpi.controller.step_controller.StepController.start">
<code class="descname">start</code><span class="sig-paren">(</span><em>**kwargs</em><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.controller.step_controller.StepController.start" title="Permalink to this definition"></a></dt>
<dd><p>Start the first step</p>
<p>:return:None</p>
</dd></dl>
</dd></dl>
</div>
<div class="section" id="cbpisimplestep">
<h2>CBPiSimpleStep<a class="headerlink" href="#cbpisimplestep" title="Permalink to this headline"></a></h2>
<dl class="class">
<dt id="cbpi.api.CBPiSimpleStep">
<em class="property">class </em><code class="descclassname">cbpi.api.</code><code class="descname">CBPiSimpleStep</code><span class="sig-paren">(</span><em>*args</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.api.CBPiSimpleStep" title="Permalink to this definition"></a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></p>
<dl class="method">
<dt id="cbpi.api.CBPiSimpleStep.is_dirty">
<code class="descname">is_dirty</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.api.CBPiSimpleStep.is_dirty" title="Permalink to this definition"></a></dt>
<dd><p>Check if a managed variable has a new value</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">True if at least one managed variable has a new value assigend. Otherwise False</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="attribute">
<dt id="cbpi.api.CBPiSimpleStep.managed_fields">
<code class="descname">managed_fields</code><em class="property"> = []</em><a class="headerlink" href="#cbpi.api.CBPiSimpleStep.managed_fields" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="cbpi.api.CBPiSimpleStep.next">
<code class="descname">next</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.api.CBPiSimpleStep.next" title="Permalink to this definition"></a></dt>
<dd><p>Request to stop the the step</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">None</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="cbpi.api.CBPiSimpleStep.reset">
<code class="descname">reset</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.api.CBPiSimpleStep.reset" title="Permalink to this definition"></a></dt>
<dd><p>Reset the step. This method needs to be overwritten by the custom step implementation</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">None</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="cbpi.api.CBPiSimpleStep.reset_dirty">
<code class="descname">reset_dirty</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.api.CBPiSimpleStep.reset_dirty" title="Permalink to this definition"></a></dt>
<dd><p>Reset the dirty flag</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body"></td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="cbpi.api.CBPiSimpleStep.run">
<code class="descname">run</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.api.CBPiSimpleStep.run" title="Permalink to this definition"></a></dt>
<dd><p>This method in running in the background. It invokes the run_cycle method in the configured interval
It checks if a managed variable was modified in the last exection cycle. If yes, the method will persisit the new value of the
managed property</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">None</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="cbpi.api.CBPiSimpleStep.run_cycle">
<code class="descname">run_cycle</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.api.CBPiSimpleStep.run_cycle" title="Permalink to this definition"></a></dt>
<dd><p>This method is executed in the defined interval.
That the place to put your step logic.
The method need to be overwritten in the Ccstom step implementaion</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">None</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="cbpi.api.CBPiSimpleStep.running">
<code class="descname">running</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.api.CBPiSimpleStep.running" title="Permalink to this definition"></a></dt>
<dd><p>Method checks if the step should continue running.
The method will return False if the step is requested to stop or the next step should start</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">True if the step is running. Otherwise False.</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="cbpi.api.CBPiSimpleStep.stop">
<code class="descname">stop</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#cbpi.api.CBPiSimpleStep.stop" title="Permalink to this definition"></a></dt>
<dd><p>Request to stop the step</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">None</td>
</tr>
</tbody>
</table>
</dd></dl>
</dd></dl>
</div>
<div class="section" id="custom-step">
<h2>Custom Step<a class="headerlink" href="#custom-step" title="Permalink to this headline"></a></h2>
<p>This is an example of a custom step. The Step class need to extend Simple step. In addtion at least the run_cycle method needs to be overwritten</p>
<div class="literal-block-wrapper docutils container" id="id1">
<div class="code-block-caption"><span class="caption-text">__init__.py</span><a class="headerlink" href="#id1" title="Permalink to this code"></a></div>
<div class="highlight-python notranslate"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre> 1
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35</pre></div></td><td class="code"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">asyncio</span>
<span class="kn">from</span> <span class="nn">cbpi.api</span> <span class="kn">import</span> <span class="o">*</span>
<span class="k">class</span> <span class="nc">CustomStepCBPi</span><span class="p">(</span><span class="n">CBPiSimpleStep</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="n">Property</span><span class="o">.</span><span class="n">Number</span><span class="p">(</span><span class="n">label</span><span class="o">=</span><span class="s2">&quot;Test&quot;</span><span class="p">)</span>
<span class="n">i</span> <span class="o">=</span> <span class="mi">0</span>
<span class="nd">@action</span><span class="p">(</span><span class="n">key</span><span class="o">=</span><span class="s2">&quot;name&quot;</span><span class="p">,</span> <span class="n">parameters</span><span class="o">=</span><span class="bp">None</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">test</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="o">=</span><span class="s2">&quot;WOOHOO&quot;</span>
<span class="n">async</span> <span class="k">def</span> <span class="nf">run_cycle</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">print</span><span class="p">(</span><span class="s2">&quot;RUN&quot;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">i</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">i</span> <span class="o">==</span> <span class="mi">5</span><span class="p">:</span>
<span class="c1"># print(&quot;NEXT&quot;)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="c1">#self.cbpi.notify(key=&quot;step&quot;, message=&quot;HELLO FROM STEP&quot;)</span>
<span class="k">def</span> <span class="nf">setup</span><span class="p">(</span><span class="n">cbpi</span><span class="p">):</span>
<span class="sd">&#39;&#39;&#39;</span>
<span class="sd"> This method is called by the server during startup </span>
<span class="sd"> Here you need to register your plugins at the server</span>
<span class="sd"> :param cbpi: the cbpi core </span>
<span class="sd"> :return: </span>
<span class="sd"> &#39;&#39;&#39;</span>
<span class="n">cbpi</span><span class="o">.</span><span class="n">plugin</span><span class="o">.</span><span class="n">register</span><span class="p">(</span><span class="s2">&quot;CustomStepCBPi&quot;</span><span class="p">,</span> <span class="n">CustomStepCBPi</span><span class="p">)</span>
</pre></div>
</td></tr></table></div>
</div>
<p>config.yaml</p>
<div class="highlight-yaml notranslate"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre>1
2</pre></div></td><td class="code"><div class="highlight"><pre><span></span><span class="l l-Scalar l-Scalar-Plain">name</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">DummyStep</span>
<span class="l l-Scalar l-Scalar-Plain">version</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">4</span>
</pre></div>
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