First thoughts on ApplicationFactory class

src/ApplicationFactory.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace PHPFastCGI\FastCGIDaemon;
+
+use PHPFastCGI\FastCGIDaemon\Command\DaemonRunCommand;
+use Symfony\Component\Console\Application;
+/**
+ * The default implementation of the ApplicationFactoryInterface.
+ */
+class ApplicationFactory implements ApplicationFactoryInterface
+{
+    /**
+     * @var DaemonFactoryInterface
+     */
+    protected $daemonFactory;
+
+    /**
+     * Constructor.
+     * 
+     * @param DaemonFactoryInterface $daemonFactory The factory to use to create daemons
+     */
+    public function __construct(DaemonFactoryInterface $daemonFactory = null)
+    {
+        if (null === $daemonFactory) {
+            $this->daemonFactory = new DaemonFactory;
+        } else {
+            $this->daemonFactory = $daemonFactory;
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function createApplication($kernel, $commandName = 'run', $commandDescription = 'Run a FastCGI daemon')
+    {
+        $command = $this->createCommand($kernel, $commandName, $commandDescription);
+
+        $application = new Application;
+        $application->add($command);
+
+        return $application;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function createCommand($kernel, $commandName = 'run', $commandDescription = 'Run a FastCGI daemon')
+    {
+        return new DaemonRunCommand($commandName, $commandDescription, $this->daemonFactory, $kernel);
+    }
+}

src/ApplicationFactoryInterface.php

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+<?php
+
+namespace PHPFastCGI\FastCGIDaemon;
+
+use Symfony\Component\Console\Application;
+use Symfony\Component\Console\Command\Command;
+
+/**
+ * Objects that implement the ApplicationFactoryInterface can be used to create
+ * Symfony console commands and applications.
+ */
+interface ApplicationFactoryInterface
+{
+    /**
+     * Create a Symfony console application
+     *
+     * @param KernelInterface|callable $kernel The daemon's kernel
+     *
+     * @return Application The Symfony console application
+     */
+    public function createApplication($kernel);
+
+    /**
+     * Create a Symfony console command
+     *
+     * @param KernelInterface|callable $kernel The daemon's kernel
+     *
+     * @return Command The Symfony console command
+     */
+    public function createCommand($kernel);
+}