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Balancer.html
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Balancer.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
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<title>
Class: Concurrent::Actor::Utils::Balancer
— Concurrent Ruby
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<span class='title'><span class='object_link'><a href="../../../Concurrent.html" title="Concurrent (module)">Concurrent</a></span></span> » <span class='title'><span class='object_link'><a href="../../Actor.html" title="Concurrent::Actor (module)">Actor</a></span></span> » <span class='title'><span class='object_link'><a href="../Utils.html" title="Concurrent::Actor::Utils (module)">Utils</a></span></span>
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<span class="title">Balancer</span>
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<div id="content"><h1>Class: Concurrent::Actor::Utils::Balancer
</h1>
<div class="box_info">
<dl>
<dt>Inherits:</dt>
<dd>
<span class="inheritName"><span class='object_link'><a href="../RestartingContext.html" title="Concurrent::Actor::RestartingContext (class)">RestartingContext</a></span></span>
<ul class="fullTree">
<li>Object</li>
<li class="next"><span class='object_link'><a href="../AbstractContext.html" title="Concurrent::Actor::AbstractContext (class)">AbstractContext</a></span></li>
<li class="next"><span class='object_link'><a href="../RestartingContext.html" title="Concurrent::Actor::RestartingContext (class)">RestartingContext</a></span></li>
<li class="next">Concurrent::Actor::Utils::Balancer</li>
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<a href="#" class="inheritanceTree">show all</a>
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</dl>
<dl>
<dt>Defined in:</dt>
<dd>lib-edge/concurrent/actor/utils/balancer.rb</dd>
</dl>
</div>
<h2>Overview</h2><div class="docstring">
<div class="discussion">
<p>Distributes messages between subscribed actors. Each actor'll get only one message then
it's unsubscribed. The actor needs to resubscribe when it's ready to receive next message.
It will buffer the messages if there is no worker registered.</p>
</div>
</div>
<div class="tags">
<p class="tag_title">See Also:</p>
<ul class="see">
<li><span class='object_link'><a href="Pool.html" title="Concurrent::Actor::Utils::Pool (class)">Pool</a></span></li>
</ul>
</div>
<h2>
Instance Method Summary
<small><a href="#" class="summary_toggle">collapse</a></small>
</h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#distribute-instance_method" title="#distribute (instance method)">#<strong>distribute</strong> ⇒ undocumented </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#initialize-instance_method" title="#initialize (instance method)">#<strong>initialize</strong> ⇒ Balancer </a>
</span>
<span class="note title constructor">constructor</span>
<span class="summary_desc"><div class='inline'><p>A new instance of Balancer.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#on_message-instance_method" title="#on_message (instance method)">#<strong>on_message</strong>(message) ⇒ undocumented </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
</ul>
<div id="constructor_details" class="method_details_list">
<h2>Constructor Details</h2>
<div class="method_details first">
<h3 class="signature first" id="initialize-instance_method">
#<strong>initialize</strong> ⇒ <tt><span class='object_link'><a href="" title="Concurrent::Actor::Utils::Balancer (class)">Balancer</a></span></tt>
</h3><div class="docstring">
<div class="discussion">
<p>Returns a new instance of Balancer</p>
</div>
</div>
<div class="tags">
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
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</td>
<td>
<pre class="code"><span class="info file"># File 'lib-edge/concurrent/actor/utils/balancer.rb', line 11</span>
<span class='kw'>def</span> <span class='id identifier rubyid_initialize'>initialize</span>
<span class='ivar'>@receivers</span> <span class='op'>=</span> <span class='lbracket'>[</span><span class='rbracket'>]</span>
<span class='ivar'>@buffer</span> <span class='op'>=</span> <span class='lbracket'>[</span><span class='rbracket'>]</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
</div>
<div id="instance_method_details" class="method_details_list">
<h2>Instance Method Details</h2>
<div class="method_details first">
<h3 class="signature first" id="distribute-instance_method">
#<strong>distribute</strong> ⇒ <tt>undocumented</tt>
</h3><div class="docstring">
<div class="discussion">
</div>
</div>
<div class="tags">
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
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</td>
<td>
<pre class="code"><span class="info file"># File 'lib-edge/concurrent/actor/utils/balancer.rb', line 35</span>
<span class='kw'>def</span> <span class='id identifier rubyid_distribute'>distribute</span>
<span class='kw'>while</span> <span class='op'>!</span><span class='ivar'>@receivers</span><span class='period'>.</span><span class='id identifier rubyid_empty?'>empty?</span> <span class='op'>&&</span> <span class='op'>!</span><span class='ivar'>@buffer</span><span class='period'>.</span><span class='id identifier rubyid_empty?'>empty?</span>
<span class='id identifier rubyid_redirect'>redirect</span> <span class='ivar'>@receivers</span><span class='period'>.</span><span class='id identifier rubyid_shift'>shift</span><span class='comma'>,</span> <span class='ivar'>@buffer</span><span class='period'>.</span><span class='id identifier rubyid_shift'>shift</span>
<span class='kw'>end</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="on_message-instance_method">
#<strong>on_message</strong>(message) ⇒ <tt>undocumented</tt>
</h3><div class="docstring">
<div class="discussion">
</div>
</div>
<div class="tags">
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
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</td>
<td>
<pre class="code"><span class="info file"># File 'lib-edge/concurrent/actor/utils/balancer.rb', line 16</span>
<span class='kw'>def</span> <span class='id identifier rubyid_on_message'>on_message</span><span class='lparen'>(</span><span class='id identifier rubyid_message'>message</span><span class='rparen'>)</span>
<span class='id identifier rubyid_command'>command</span><span class='comma'>,</span> <span class='id identifier rubyid_who'>who</span> <span class='op'>=</span> <span class='id identifier rubyid_message'>message</span>
<span class='kw'>case</span> <span class='id identifier rubyid_command'>command</span>
<span class='kw'>when</span> <span class='symbol'>:subscribe</span>
<span class='ivar'>@receivers</span> <span class='op'><<</span> <span class='lparen'>(</span><span class='id identifier rubyid_who'>who</span> <span class='op'>||</span> <span class='id identifier rubyid_envelope'>envelope</span><span class='period'>.</span><span class='id identifier rubyid_sender'>sender</span><span class='rparen'>)</span>
<span class='id identifier rubyid_distribute'>distribute</span>
<span class='kw'>true</span>
<span class='kw'>when</span> <span class='symbol'>:unsubscribe</span>
<span class='ivar'>@receivers</span><span class='period'>.</span><span class='id identifier rubyid_delete'>delete</span><span class='lparen'>(</span><span class='id identifier rubyid_who'>who</span> <span class='op'>||</span> <span class='id identifier rubyid_envelope'>envelope</span><span class='period'>.</span><span class='id identifier rubyid_sender'>sender</span><span class='rparen'>)</span>
<span class='kw'>true</span>
<span class='kw'>when</span> <span class='symbol'>:subscribed?</span>
<span class='ivar'>@receivers</span><span class='period'>.</span><span class='id identifier rubyid_include?'>include?</span><span class='lparen'>(</span><span class='id identifier rubyid_who'>who</span> <span class='op'>||</span> <span class='id identifier rubyid_envelope'>envelope</span><span class='period'>.</span><span class='id identifier rubyid_sender'>sender</span><span class='rparen'>)</span>
<span class='kw'>else</span>
<span class='ivar'>@buffer</span> <span class='op'><<</span> <span class='id identifier rubyid_envelope'>envelope</span>
<span class='id identifier rubyid_distribute'>distribute</span>
<span class='const'><span class='object_link'><a href="../Behaviour.html" title="Concurrent::Actor::Behaviour (module)">Behaviour</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="../Behaviour.html#MESSAGE_PROCESSED-constant" title="Concurrent::Actor::Behaviour::MESSAGE_PROCESSED (constant)">MESSAGE_PROCESSED</a></span></span>
<span class='kw'>end</span>
<span class='kw'>end</span></pre>
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