git-svn-id: https://msi/svn/firstRepo/Service/branches/Slim3@40 0f545695-f87b-41b6-9a03-7f16563b5454

Slim/CallableResolverAwareTrait.php

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+<?php
+/**
+ * Slim Framework (http://slimframework.com)
+ *
+ * @link      https://github.com/slimphp/Slim
+ * @copyright Copyright (c) 2011-2015 Josh Lockhart
+ * @license   https://github.com/slimphp/Slim/blob/3.x/LICENSE.md (MIT License)
+ */
+namespace Slim;
+
+use RuntimeException;
+use Interop\Container\ContainerInterface;
+use Slim\Interfaces\CallableResolverInterface;
+
+/**
+ * ResolveCallable
+ *
+ * This is an internal class that enables resolution of 'class:method' strings
+ * into a closure. This class is an implementation detail and is used only inside
+ * of the Slim application.
+ *
+ * @property ContainerInterface $container
+ */
+trait CallableResolverAwareTrait
+{
+    /**
+     * Resolve a string of the format 'class:method' into a closure that the
+     * router can dispatch.
+     *
+     * @param mixed $callable
+     *
+     * @return \Closure
+     *
+     * @throws RuntimeException If the string cannot be resolved as a callable
+     */
+    protected function resolveCallable($callable)
+    {
+        if (!$this->container instanceof ContainerInterface) {
+            return $callable;
+        }
+
+        /** @var CallableResolverInterface $resolver */
+        $resolver = $this->container->get('callableResolver');
+
+        return $resolver->resolve($callable);
+    }
+}