From 1a502bf8d621b74707cf3b1b08de0f1aac098baa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Filip=20Proch=C3=A1zka?= <filip@prochazka.su>
Date: Sun, 18 Aug 2013 12:03:25 +0200
Subject: [PATCH] The extension should be extensible by other extensions using
 IAspectsProvider

---
 src/Kdyby/Aop/DI/AopExtension.php     | 39 ++++++++++++++
 src/Kdyby/Aop/DI/AspectsConfig.php    | 76 +++++++++++++++++++++++++++
 src/Kdyby/Aop/DI/IAspectsProvider.php | 45 ++++++++++++++++
 src/Kdyby/Aop/exceptions.php          | 30 +++++++++++
 4 files changed, 190 insertions(+)
 create mode 100644 src/Kdyby/Aop/DI/AspectsConfig.php
 create mode 100644 src/Kdyby/Aop/DI/IAspectsProvider.php

diff --git a/src/Kdyby/Aop/DI/AopExtension.php b/src/Kdyby/Aop/DI/AopExtension.php
index bbdf9d5..577ee62 100644
--- a/src/Kdyby/Aop/DI/AopExtension.php
+++ b/src/Kdyby/Aop/DI/AopExtension.php
@@ -32,9 +32,36 @@ class_alias('Nette\Config\Configurator', 'Nette\Configurator');
 class AopExtension extends Nette\DI\CompilerExtension
 {
 
+	const ASPECT_TAG = 'kdyby.aspect';
+
+	/**
+	 * @var array
+	 */
 	public $defaults = array();
 
 
+
+	public function loadConfiguration()
+	{
+		$builder = $this->getContainerBuilder();
+
+		foreach ($this->compiler->getExtensions() as $extension) {
+			if (!$extension instanceof IAspectsProvider) {
+				continue;
+			}
+
+			if (!($config = $extension->getAspectsConfiguration()) || !$config instanceof AspectsConfig) {
+				$refl = new Nette\Reflection\Method($extension, 'getAspectsConfiguration');
+				$given = is_object($config) ? 'instance of ' . get_class($config) : gettype($config);
+				throw new Kdyby\Aop\UnexpectedValueException("Method $refl is expected to return instance of \\Kdyby\\Aop\\DI\\AspectsConfig, but $given given.");
+			}
+
+			$config->load($this->compiler, $builder);
+		}
+	}
+
+
+
 	public function beforeCompile()
 	{
 		$builder = $this->getContainerBuilder();
@@ -43,6 +70,18 @@ public function beforeCompile()
 
 
 
+	/**
+	 * @param string $configFile
+	 * @param Nette\DI\CompilerExtension $extension
+	 * @return AspectsConfig
+	 */
+	public static function loadAspects($configFile, Nette\DI\CompilerExtension $extension)
+	{
+		return new AspectsConfig($extension->loadFromFile($configFile), $extension);
+	}
+
+
+
 	/**
 	 * @param \Nette\Configurator $configurator
 	 */
diff --git a/src/Kdyby/Aop/DI/AspectsConfig.php b/src/Kdyby/Aop/DI/AspectsConfig.php
new file mode 100644
index 0000000..a5df552
--- /dev/null
+++ b/src/Kdyby/Aop/DI/AspectsConfig.php
@@ -0,0 +1,76 @@
+<?php
+
+/**
+ * This file is part of the Kdyby (http://www.kdyby.org)
+ *
+ * Copyright (c) 2008 Filip Procházka (filip@prochazka.su)
+ *
+ * For the full copyright and license information, please view the file license.txt that was distributed with this source code.
+ */
+
+namespace Kdyby\Aop\DI;
+
+use Kdyby;
+use Nette;
+
+
+
+/**
+ * @author Filip Procházka <filip@prochazka.su>
+ */
+class AspectsConfig extends Nette\Object
+{
+
+	/**
+	 * @var array
+	 */
+	private $aspectsList;
+
+	/**
+	 * @var \Nette\DI\CompilerExtension
+	 */
+	private $extension;
+
+	/**
+	 * @var bool
+	 */
+	private $prefix = TRUE;
+
+
+
+	public function __construct(array $aspectsList, Nette\DI\CompilerExtension $extension)
+	{
+		$this->aspectsList = $aspectsList;
+		$this->extension = $extension;
+	}
+
+
+
+	public function disablePrefixing()
+	{
+		$this->prefix = FALSE;
+
+		return $this;
+	}
+
+
+
+	public function load(Nette\DI\Compiler $compiler, Nette\DI\ContainerBuilder $containerBuilder)
+	{
+		$aspects = array();
+		foreach ($this->aspectsList as $def) {
+			if (!is_array($def)) {
+				if (!$def instanceof \stdClass || empty($def->entity)) {
+					$serialised = Nette\Utils\Json::encode($def);
+					throw new Kdyby\Aop\UnexpectedValueException("The service definition $serialised is expected to be an array or Neon entity.");
+				}
+				$def = array('factory' => $def);
+			}
+			$def['tags'][] = AopExtension::ASPECT_TAG;
+			$aspects[] = $def;
+		}
+
+		$compiler->parseServices($containerBuilder, $aspects, $this->prefix ? substr($this->extension->prefix('self'), 0, -5) : NULL);
+	}
+
+}
diff --git a/src/Kdyby/Aop/DI/IAspectsProvider.php b/src/Kdyby/Aop/DI/IAspectsProvider.php
new file mode 100644
index 0000000..d01c4c1
--- /dev/null
+++ b/src/Kdyby/Aop/DI/IAspectsProvider.php
@@ -0,0 +1,45 @@
+<?php
+
+/**
+ * This file is part of the Kdyby (http://www.kdyby.org)
+ *
+ * Copyright (c) 2008 Filip Procházka (filip@prochazka.su)
+ *
+ * For the full copyright and license information, please view the file license.txt that was distributed with this source code.
+ */
+
+namespace Kdyby\Aop\DI;
+
+use Kdyby;
+use Nette;
+
+
+
+/**
+ * Implement this interface to your CompilerExtension if you want it to provide aspects.
+ *
+ * Example:
+ * <code>
+ * class AclExtension extends Nette\DI\CompilerExtension implements \Kdyby\Aop\DI\IAspectsProvider
+ * {
+ * 	public function getAspectsConfiguration()
+ * 	{
+ * 		return \Kdyby\Aop\DI\AopExtension::loadAspects(__DIR__ . '/aspects.neon', $this);
+ * 	}
+ * }
+ * </code>
+ *
+ * The `aspects.neon` file should be list of unnamed services
+ *
+ *
+ * @author Filip Procházka <filip@prochazka.su>
+ */
+interface IAspectsProvider
+{
+
+	/**
+	 * @return AspectsConfig
+	 */
+	function getAspectsConfiguration();
+
+}
diff --git a/src/Kdyby/Aop/exceptions.php b/src/Kdyby/Aop/exceptions.php
index 0e47d6d..c9676fd 100644
--- a/src/Kdyby/Aop/exceptions.php
+++ b/src/Kdyby/Aop/exceptions.php
@@ -29,3 +29,33 @@ class InvalidStateException extends \RuntimeException implements Exception
 {
 
 }
+
+
+
+/**
+ * @author Filip Procházka <filip@prochazka.su>
+ */
+class InvalidArgumentException extends \InvalidArgumentException implements Exception
+{
+
+}
+
+
+
+/**
+ * @author Filip Procházka <filip@prochazka.su>
+ */
+class UnexpectedValueException extends \UnexpectedValueException
+{
+
+}
+
+
+
+/**
+ * @author Filip Procházka <filip@prochazka.su>
+ */
+class InvalidAspectExceptions extends \LogicException implements Exception
+{
+
+}