From 409c455bd1ca6b08e08492a9dc7fa2e39be892d0 Mon Sep 17 00:00:00 2001
From: Dmitriy Simushev <simushevds@ossg.ru>
Date: Wed, 26 Feb 2014 12:08:16 +0000
Subject: [PATCH] Encapsulate PSR-0 in \Mibew\Autoloader class

---
 src/mibew/libs/classes/Mibew/Autoloader.php | 82 +++++++++++++++++++++
 src/mibew/libs/common/autoload.php          | 39 ----------
 src/mibew/libs/init.php                     |  4 +-
 3 files changed, 84 insertions(+), 41 deletions(-)
 create mode 100644 src/mibew/libs/classes/Mibew/Autoloader.php
 delete mode 100644 src/mibew/libs/common/autoload.php

diff --git a/src/mibew/libs/classes/Mibew/Autoloader.php b/src/mibew/libs/classes/Mibew/Autoloader.php
new file mode 100644
index 00000000..db11527e
--- /dev/null
+++ b/src/mibew/libs/classes/Mibew/Autoloader.php
@@ -0,0 +1,82 @@
+<?php
+/*
+ * Copyright 2005-2013 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Mibew;
+
+/**
+ * Autoloader for classes which implements PSR-0 standard.
+ */
+class Autoloader
+{
+    /**
+     * Base path for autoloaded classes.
+     *
+     * @var string
+     */
+    private $basePath;
+
+    /**
+     * Class loader.
+     *
+     * Map class name to file system using PSR-0 and base path specified via
+     * \Mibew\Autoloader::register().
+     *
+     * @param string $class_name Class name to load.
+     */
+    public function autoload($class_name)
+    {
+        $class_name = ltrim($class_name, '\\');
+        $file_name = '';
+        $namespace = '';
+        if ($last_ns_pos = strrpos($class_name, '\\')) {
+            $namespace = substr($class_name, 0, $last_ns_pos);
+            $class_name = substr($class_name, $last_ns_pos + 1);
+            $file_name = str_replace('\\', DIRECTORY_SEPARATOR, $namespace) . DIRECTORY_SEPARATOR;
+        }
+        $file_name = $this->basePath . DIRECTORY_SEPARATOR . $file_name
+            . str_replace('_', DIRECTORY_SEPARATOR, $class_name) . '.php';
+
+        if (is_file($file_name)) {
+            include_once($file_name);
+        }
+    }
+
+    /**
+     * Register a new instance as an SPL autoloader.
+     *
+     * @param string $base_path Base path for classes-to-files mapping.
+     *
+     * @return \Mibew\Autoloader Registered autoloader instance.
+     */
+    public static function register($base_path)
+    {
+        $loader = new self($base_path);
+        spl_autoload_register(array($loader, 'autoload'));
+
+        return $loader;
+    }
+
+    /**
+     * Class constructor.
+     *
+     * @param string $base_path Base path for classes-to-files mapping.
+     */
+    protected function __construct($base_path)
+    {
+        $this->basePath = rtrim($base_path, '/\\');
+    }
+}
diff --git a/src/mibew/libs/common/autoload.php b/src/mibew/libs/common/autoload.php
deleted file mode 100644
index 848cff76..00000000
--- a/src/mibew/libs/common/autoload.php
+++ /dev/null
@@ -1,39 +0,0 @@
-<?php
-/*
- * Copyright 2005-2013 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * Autoloader for classes which implements PSR-0 standard.
- *
- * @param string $class_name Fully qualified name of the class
- */
-function class_autoload($class_name)
-{
-    $base_dir = MIBEW_FS_ROOT . DIRECTORY_SEPARATOR . 'libs' .
-        DIRECTORY_SEPARATOR . 'classes';
-
-    $class_name = ltrim($class_name, '\\');
-    $file_name = '';
-    $namespace = '';
-    if ($last_ns_pos = strrpos($class_name, '\\')) {
-        $namespace = substr($class_name, 0, $last_ns_pos);
-        $class_name = substr($class_name, $last_ns_pos + 1);
-        $file_name = str_replace('\\', DIRECTORY_SEPARATOR, $namespace) . DIRECTORY_SEPARATOR;
-    }
-    $file_name .= str_replace('_', DIRECTORY_SEPARATOR, $class_name) . '.php';
-
-    require $base_dir . DIRECTORY_SEPARATOR . $file_name;
-}
diff --git a/src/mibew/libs/init.php b/src/mibew/libs/init.php
index ddce1c1a..4c24cbab 100644
--- a/src/mibew/libs/init.php
+++ b/src/mibew/libs/init.php
@@ -44,8 +44,8 @@ define('MIBEW_WEB_ROOT', $mibewroot);
 require_once(MIBEW_FS_ROOT . '/libs/common/constants.php');
 
 // Initialize classes autoloading
-require_once(MIBEW_FS_ROOT . '/libs/common/autoload.php');
-spl_autoload_register('class_autoload');
+require_once(MIBEW_FS_ROOT . '/libs/classes/Mibew/Autoloader.php');
+Mibew\Autoloader::register(MIBEW_FS_ROOT . '/libs/classes');
 
 // Initialize external dependencies
 require_once(MIBEW_FS_ROOT . '/vendor/autoload.php');