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  <h1>Function handler</h1>

<div class="doc doc-object doc-module">


<a id="streampipes.functions.function_handler"></a>
  <div class="doc doc-contents first">

  
  <div class="doc doc-children">


<div class="doc doc-object doc-class">


<h2 id="streampipes.functions.function_handler.FunctionHandler" class="doc doc-heading">
            <code class="highlight language-python"><span class="n">FunctionHandler</span><span class="p">(</span><span class="n">registration</span><span class="p">,</span> <span class="n">client</span><span class="p">)</span></code>

<a href="#streampipes.functions.function_handler.FunctionHandler" class="headerlink" title="Permanent link">&para;</a></h2>


  <div class="doc doc-contents ">

  
      <p>The function handler manages the StreamPipes Functions.</p>
<p>It controls the connection to the brokers, starts the functions, manages the broadcast of the live data
and is able to stop the connection to the brokers and functions.</p>


  <table>
    <thead>
      <tr>
        <th><b>PARAMETER</b></th>
        <th><b> DESCRIPTION</b></th>
      </tr>
    </thead>
    <tbody>
        <tr>
          <td><code>registration</code></td>
          <td class="doc-param-details">
            <div class="doc-md-description">
              <p>The registration, that contains the StreamPipesFunctions.</p>
            </div>
            <p>
                <span class="doc-param-annotation">
                  <b>TYPE:</b>
                    <code><a class="autorefs autorefs-internal" title="streampipes.functions.registration.Registration" href="../registration/#streampipes.functions.registration.Registration">Registration</a></code>
                </span>
            </p>
          </td>
        </tr>
        <tr>
          <td><code>client</code></td>
          <td class="doc-param-details">
            <div class="doc-md-description">
              <p>The client to interact with the API.</p>
            </div>
            <p>
                <span class="doc-param-annotation">
                  <b>TYPE:</b>
                    <code><a class="autorefs autorefs-internal" title="streampipes.client.client.StreamPipesClient" href="../../client/client/#streampipes.client.client.StreamPipesClient">StreamPipesClient</a></code>
                </span>
            </p>
          </td>
        </tr>
    </tbody>
  </table>


  <table>
    <thead>
      <tr>
        <th><b>ATTRIBUTE</b></th>
        <th><b>DESCRIPTION</b></th>
      </tr>
    </thead>
    <tbody>
        <tr>
          <td><code><span title="streampipes.functions.function_handler.FunctionHandler.stream_contexts">stream_contexts</span></code></td>
          <td class="doc-attribute-details">
            <div class="doc-md-description">
              <p>Map of all data stream contexts</p>
            </div>
            <p>
                <span class="doc-attribute-annotation">
                  <b>TYPE:</b>
                    <code><span title="typing.Dict">Dict</span>[str, <a class="autorefs autorefs-internal" title="streampipes.functions.utils.data_stream_context.DataStreamContext" href="../utils/data_stream_context/#streampipes.functions.utils.data_stream_context.DataStreamContext">DataStreamContext</a>]</code>
                </span>
            </p>
          </td>
        </tr>
        <tr>
          <td><code><span title="streampipes.functions.function_handler.FunctionHandler.brokers">brokers</span></code></td>
          <td class="doc-attribute-details">
            <div class="doc-md-description">
              <p>List of all registered brokers</p>
            </div>
            <p>
                <span class="doc-attribute-annotation">
                  <b>TYPE:</b>
                    <code><span title="typing.List">List</span>[<a class="autorefs autorefs-internal" title="streampipes.functions.broker.Broker" href="../broker/broker/#streampipes.functions.broker.broker.Broker">Broker</a>]</code>
                </span>
            </p>
          </td>
        </tr>
    </tbody>
  </table>


  <div class="doc doc-children">


<div class="doc doc-object doc-function">


<h3 id="streampipes.functions.function_handler.FunctionHandler.disconnect" class="doc doc-heading">
          <code class="highlight language-python"><span class="n">disconnect</span><span class="p">()</span></code>

<a href="#streampipes.functions.function_handler.FunctionHandler.disconnect" class="headerlink" title="Permanent link">&para;</a></h3>


  <div class="doc doc-contents ">
  
      <p>Disconnects from the brokers and stops all functions.</p>


  <table>
    <thead>
      <tr>
        <th><b>RETURNS</b></th>
        <th><b>DESCRIPTION</b></th>
      </tr>
    </thead>
    <tbody>
        <tr>
          <td>
              <span class="doc-returns-annotation">
                  <code>None</code>
              </span>
          </td>
          <td class="doc-returns-details">
            <div class="doc-md-description">
              
            </div>
          </td>
        </tr>
    </tbody>
  </table>

  </div>

</div>


<div class="doc doc-object doc-function">


<h3 id="streampipes.functions.function_handler.FunctionHandler.force_stop_functions" class="doc doc-heading">
          <code class="highlight language-python"><span class="n">force_stop_functions</span><span class="p">()</span></code>

<a href="#streampipes.functions.function_handler.FunctionHandler.force_stop_functions" class="headerlink" title="Permanent link">&para;</a></h3>


  <div class="doc doc-contents ">
  
      <p>Stops the StreamPipesFunctions when the event loop was stopped without stopping the functions.</p>


  <table>
    <thead>
      <tr>
        <th><b>RETURNS</b></th>
        <th><b>DESCRIPTION</b></th>
      </tr>
    </thead>
    <tbody>
        <tr>
          <td>
              <span class="doc-returns-annotation">
                  <code>None</code>
              </span>
          </td>
          <td class="doc-returns-details">
            <div class="doc-md-description">
              
            </div>
          </td>
        </tr>
    </tbody>
  </table>


  <table>
    <thead>
      <tr>
        <th><b>WARNS</b></th>
        <th><b>DESCRIPTION</b></th>
      </tr>
    </thead>
    <tbody>
        <tr>
          <td>
            <span class="doc-warns-annotation">
                <code>UserWarning</code>
            </span>
          </td>
          <td class="doc-warns-details">
            <div class="doc-md-description">
              <p>If there is a running event loop and the functions should be stopped by disconnecting from the broker.</p>
            </div>
          </td>
        </tr>
    </tbody>
  </table>

  </div>

</div>


<div class="doc doc-object doc-function">


<h3 id="streampipes.functions.function_handler.FunctionHandler.initializeFunctions" class="doc doc-heading">
          <code class="highlight language-python"><span class="n">initializeFunctions</span><span class="p">()</span></code>

<a href="#streampipes.functions.function_handler.FunctionHandler.initializeFunctions" class="headerlink" title="Permanent link">&para;</a></h3>


  <div class="doc doc-contents ">
  
      <p>Creates the context for every data stream and starts the event loop to manage the StreamPipes Functions.</p>


  <table>
    <thead>
      <tr>
        <th><b>RETURNS</b></th>
        <th><b>DESCRIPTION</b></th>
      </tr>
    </thead>
    <tbody>
        <tr>
          <td>
              <span class="doc-returns-annotation">
                  <code>None</code>
              </span>
          </td>
          <td class="doc-returns-details">
            <div class="doc-md-description">
              
            </div>
          </td>
        </tr>
    </tbody>
  </table>

  </div>

</div>


  </div>

  </div>


</div>


  </div>

  </div>

</div>


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