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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Tool
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Repository.php 20096 2010-01-06 02:05:09Z bkarwin $
*/
require_once 'Zend/Tool/Project/Context/System/Interface.php';
require_once 'Zend/Tool/Project/Context/System/TopLevelRestrictable.php';
require_once 'Zend/Tool/Project/Context/System/NotOverwritable.php';
/**
* @category Zend
* @package Zend_Tool
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Tool_Project_Context_Repository implements Countable
{
protected static $_instance = null;
protected static $_isInitialized = false;
protected $_shortContextNames = array();
protected $_contexts = array();
/**
* Enter description here...
*
* @return Zend_Tool_Project_Context_Repository
*/
public static function getInstance()
{
if (self::$_instance == null) {
self::$_instance = new self();
}
return self::$_instance;
}
public static function resetInstance()
{
self::$_instance = null;
self::$_isInitialized = false;
}
protected function __construct()
{
if (self::$_isInitialized == false) {
$this->addContextClass('Zend_Tool_Project_Context_System_ProjectDirectory')
->addContextClass('Zend_Tool_Project_Context_System_ProjectProfileFile')
->addContextClass('Zend_Tool_Project_Context_System_ProjectProvidersDirectory');
self::$_isInitialized = true;
}
}
public function addContextsFromDirectory($directory, $prefix)
{
$prefix = trim($prefix, '_') . '_';
foreach (new DirectoryIterator($directory) as $directoryItem) {
if ($directoryItem->isDot() || (substr($directoryItem->getFilename(), -4) !== '.php')) {
continue;
}
$class = $prefix . substr($directoryItem->getFilename(), 0, -4);
$this->addContextClass($class);
}
}
public function addContextClass($contextClass)
{
if (!class_exists($contextClass)) {
require_once 'Zend/Loader.php';
Zend_Loader::loadClass($contextClass);
}
$reflectionContextClass = new ReflectionClass($contextClass);
if ($reflectionContextClass->isInstantiable()) {
$context = new $contextClass();
return $this->addContext($context);
}
return $this;
}
/**
* Enter description here...
*
* @param Zend_Tool_Project_Context_Interface $context
* @return Zend_Tool_Project_Context_Repository
*/
public function addContext(Zend_Tool_Project_Context_Interface $context)
{
$isSystem = ($context instanceof Zend_Tool_Project_Context_System_Interface);
$isTopLevel = ($context instanceof Zend_Tool_Project_Context_System_TopLevelRestrictable);
$isOverwritable = !($context instanceof Zend_Tool_Project_Context_System_NotOverwritable);
$index = (count($this->_contexts)) ? max(array_keys($this->_contexts)) + 1 : 1;
$normalName = $this->_normalizeName($context->getName());
if (isset($this->_shortContextNames[$normalName]) && ($this->_contexts[$this->_shortContextNames[$normalName]]['isOverwritable'] === false) ) {
require_once 'Zend/Tool/Project/Context/Exception.php';
throw new Zend_Tool_Project_Context_Exception('Context ' . $context->getName() . ' is not overwriteable.');
}
$this->_shortContextNames[$normalName] = $index;
$this->_contexts[$index] = array(
'isTopLevel' => $isTopLevel,
'isSystem' => $isSystem,
'isOverwritable' => $isOverwritable,
'normalName' => $normalName,
'context' => $context
);
return $this;
}
public function getContext($name)
{
if (!$this->hasContext($name)) {
require_once 'Zend/Tool/Project/Context/Exception.php';
throw new Zend_Tool_Project_Context_Exception('Context by name ' . $name . ' does not exist in the registry.');
}
$name = $this->_normalizeName($name);
return clone $this->_contexts[$this->_shortContextNames[$name]]['context'];
}
public function hasContext($name)
{
$name = $this->_normalizeName($name);
return (isset($this->_shortContextNames[$name]) ? true : false);
}
public function isSystemContext($name)
{
if (!$this->hasContext($name)) {
return false;
}
$name = $this->_normalizeName($name);
$index = $this->_shortContextNames[$name];
return $this->_contexts[$index]['isSystemContext'];
}
public function isTopLevelContext($name)
{
if (!$this->hasContext($name)) {
return false;
}
$name = $this->_normalizeName($name);
$index = $this->_shortContextNames[$name];
return $this->_contexts[$index]['isTopLevel'];
}
public function isOverwritableContext($name)
{
if (!$this->hasContext($name)) {
return false;
}
$name = $this->_normalizeName($name);
$index = $this->_shortContextNames[$name];
return $this->_contexts[$index]['isOverwritable'];
}
public function count()
{
return count($this->_contexts);
}
protected function _normalizeName($name)
{
return strtolower($name);
}
}
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