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<title>Module: Rack::Handler</title>
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<div id="classHeader">
<table class="header-table">
<tr class="top-aligned-row">
<td><strong>Module</strong></td>
<td class="class-name-in-header">Rack::Handler</td>
</tr>
<tr class="top-aligned-row">
<td><strong>In:</strong></td>
<td>
<a href="../../files/lib/rack/handler_rb.html">
lib/rack/handler.rb
</a>
<br />
<a href="../../files/lib/rack/handler/lsws_rb.html">
lib/rack/handler/lsws.rb
</a>
<br />
<a href="../../files/lib/rack/handler/swiftiplied_mongrel_rb.html">
lib/rack/handler/swiftiplied_mongrel.rb
</a>
<br />
<a href="../../files/lib/rack/handler/evented_mongrel_rb.html">
lib/rack/handler/evented_mongrel.rb
</a>
<br />
<a href="../../files/lib/rack/handler/webrick_rb.html">
lib/rack/handler/webrick.rb
</a>
<br />
<a href="../../files/lib/rack/handler/thin_rb.html">
lib/rack/handler/thin.rb
</a>
<br />
<a href="../../files/lib/rack/handler/scgi_rb.html">
lib/rack/handler/scgi.rb
</a>
<br />
<a href="../../files/lib/rack/handler/mongrel_rb.html">
lib/rack/handler/mongrel.rb
</a>
<br />
<a href="../../files/lib/rack/handler/cgi_rb.html">
lib/rack/handler/cgi.rb
</a>
<br />
<a href="../../files/lib/rack/handler/fastcgi_rb.html">
lib/rack/handler/fastcgi.rb
</a>
<br />
</td>
</tr>
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<div id="description">
<p>
<b>Handlers</b> connect web servers with <a href="../Rack.html">Rack</a>.
</p>
<p>
<a href="../Rack.html">Rack</a> includes Handlers for <a
href="Handler/Thin.html">Thin</a>, <a
href="Handler/WEBrick.html">WEBrick</a>, <a
href="Handler/FastCGI.html">FastCGI</a>, <a
href="Handler/CGI.html">CGI</a>, <a href="Handler/SCGI.html">SCGI</a> and
LiteSpeed.
</p>
<p>
Handlers usually are activated by calling <tt>MyHandler.run(myapp)</tt>. A
second optional hash can be passed to include server-specific
configuration.
</p>
</div>
</div>
<div id="method-list">
<h3 class="section-bar">Methods</h3>
<div class="name-list">
<a href="#M000068">default</a>
<a href="#M000066">get</a>
<a href="#M000067">pick</a>
<a href="#M000070">register</a>
<a href="#M000069">try_require</a>
</div>
</div>
</div>
<!-- if includes -->
<div id="section">
<div id="class-list">
<h3 class="section-bar">Classes and Modules</h3>
Class <a href="Handler/CGI.html" class="link">Rack::Handler::CGI</a><br />
Class <a href="Handler/EventedMongrel.html" class="link">Rack::Handler::EventedMongrel</a><br />
Class <a href="Handler/FastCGI.html" class="link">Rack::Handler::FastCGI</a><br />
Class <a href="Handler/LSWS.html" class="link">Rack::Handler::LSWS</a><br />
Class <a href="Handler/Mongrel.html" class="link">Rack::Handler::Mongrel</a><br />
Class <a href="Handler/SCGI.html" class="link">Rack::Handler::SCGI</a><br />
Class <a href="Handler/SwiftipliedMongrel.html" class="link">Rack::Handler::SwiftipliedMongrel</a><br />
Class <a href="Handler/Thin.html" class="link">Rack::Handler::Thin</a><br />
Class <a href="Handler/WEBrick.html" class="link">Rack::Handler::WEBrick</a><br />
</div>
<!-- if method_list -->
<div id="methods">
<h3 class="section-bar">Public Class methods</h3>
<div id="method-M000068" class="method-detail">
<a name="M000068"></a>
<div class="method-heading">
<a href="Handler.src/M000068.html" target="Code" class="method-signature"
onclick="popupCode('Handler.src/M000068.html');return false;">
<span class="method-name">default</span><span class="method-args">(options = {})</span>
</a>
</div>
<div class="method-description">
</div>
</div>
<div id="method-M000066" class="method-detail">
<a name="M000066"></a>
<div class="method-heading">
<a href="Handler.src/M000066.html" target="Code" class="method-signature"
onclick="popupCode('Handler.src/M000066.html');return false;">
<span class="method-name">get</span><span class="method-args">(server)</span>
</a>
</div>
<div class="method-description">
</div>
</div>
<div id="method-M000067" class="method-detail">
<a name="M000067"></a>
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<a href="Handler.src/M000067.html" target="Code" class="method-signature"
onclick="popupCode('Handler.src/M000067.html');return false;">
<span class="method-name">pick</span><span class="method-args">(server_names)</span>
</a>
</div>
<div class="method-description">
<p>
Select first available <a href="../Rack.html">Rack</a> handler given an
`Array` of server names. Raises `LoadError` if no handler was found.
</p>
<pre>
> pick ['thin', 'webrick']
=> Rack::Handler::WEBrick
</pre>
</div>
</div>
<div id="method-M000070" class="method-detail">
<a name="M000070"></a>
<div class="method-heading">
<a href="Handler.src/M000070.html" target="Code" class="method-signature"
onclick="popupCode('Handler.src/M000070.html');return false;">
<span class="method-name">register</span><span class="method-args">(server, klass)</span>
</a>
</div>
<div class="method-description">
</div>
</div>
<div id="method-M000069" class="method-detail">
<a name="M000069"></a>
<div class="method-heading">
<a href="Handler.src/M000069.html" target="Code" class="method-signature"
onclick="popupCode('Handler.src/M000069.html');return false;">
<span class="method-name">try_require</span><span class="method-args">(prefix, const_name)</span>
</a>
</div>
<div class="method-description">
<p>
Transforms server-name constants to their canonical form as filenames, then
tries to require them but silences the LoadError if not found
</p>
<p>
Naming convention:
</p>
<pre>
Foo # => 'foo'
FooBar # => 'foo_bar.rb'
FooBAR # => 'foobar.rb'
FOObar # => 'foobar.rb'
FOOBAR # => 'foobar.rb'
FooBarBaz # => 'foo_bar_baz.rb'
</pre>
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