2008-09-13 16:40:17 +04:00
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<?php
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2009-08-09 03:16:13 +04:00
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/*
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* $Id$
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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2009-01-22 22:38:10 +03:00
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namespace Doctrine\Common;
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2008-09-13 16:40:17 +04:00
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/**
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* A class loader used to load class files on demand.
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*
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* Usage recommendation:
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* 1) Use only 1 class loader instance.
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2009-01-03 22:50:13 +03:00
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* 2) Set the base paths to your class libraries (including Doctrine's) through
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* $classLoader->setBasePath($prefix, $basePath);
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* Example:
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* $classLoader->setBasePath('Doctrine', '/usr/local/phplibs/doctrine/lib');
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* Then, when trying to load the class Doctrine\ORM\EntityManager, for example
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* the classloader will look for /usr/local/phplibs/doctrine/lib/Doctrine/ORM/EntityManager.php
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*
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2008-12-18 17:08:11 +03:00
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* 3) DO NOT setCheckFileExists(true). Doing so is expensive in terms of performance.
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2009-01-03 22:50:13 +03:00
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* 4) Use an opcode-cache (i.e. APC) (STRONGLY RECOMMENDED).
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2009-02-18 01:30:13 +03:00
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*
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2009-08-09 03:16:13 +04:00
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @link www.doctrine-project.org
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* @since 2.0
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* @version $Revision: 3938 $
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* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
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* @author Jonathan Wage <jonwage@gmail.com>
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* @author Roman Borschel <roman@code-factory.org>
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2008-09-13 16:40:17 +04:00
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*/
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2009-01-22 22:38:10 +03:00
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class ClassLoader
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2009-02-18 01:30:13 +03:00
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{
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2009-08-11 01:36:57 +04:00
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/**
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* @var string Namespace separator
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*/
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2009-09-01 12:18:36 +04:00
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private $_namespaceSeparator = array('\\', '_');
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2009-08-11 01:36:57 +04:00
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/**
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* @var string File extension used for classes
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*/
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private $_fileExtension = '.php';
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/**
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* @var boolean Flag to inspect if file exists in codebase before include it
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*/
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private $_checkFileExists = false;
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/**
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* @var array Hashmap of base paths that Autoloader will look into
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*/
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private $_basePaths = array();
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2009-02-18 01:30:13 +03:00
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/**
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* Constructor registers the autoloader automatically
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2009-08-11 01:36:57 +04:00
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*
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2009-02-18 01:30:13 +03:00
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*/
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2008-09-13 16:40:17 +04:00
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public function __construct()
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{
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2009-02-18 01:30:13 +03:00
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spl_autoload_register(array($this, 'loadClass'));
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2008-09-13 16:40:17 +04:00
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}
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2009-02-18 01:30:13 +03:00
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/**
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* Set check file exists
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*
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* @param boolean $bool
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* @return void
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*/
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2008-09-13 16:40:17 +04:00
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public function setCheckFileExists($bool)
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{
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$this->_checkFileExists = $bool;
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}
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2009-02-18 01:30:13 +03:00
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/**
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* Set class file extension
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*
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* @param string $extension
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* @return void
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*/
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2008-09-13 16:40:17 +04:00
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public function setClassFileExtension($extension)
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{
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$this->_fileExtension = $extension;
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}
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2009-02-18 01:30:13 +03:00
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/**
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2009-06-01 20:14:11 +04:00
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* Sets the namespace separator to use.
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2009-02-18 01:30:13 +03:00
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*
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* @param string $separator
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* @return void
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*/
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2008-09-13 16:40:17 +04:00
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public function setNamespaceSeparator($separator)
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{
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$this->_namespaceSeparator = $separator;
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}
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2009-02-18 01:30:13 +03:00
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2008-09-13 16:40:17 +04:00
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/**
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2009-01-03 22:50:13 +03:00
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* Sets a static base path for classes with a certain prefix that is prepended
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* to the path derived from the class itself.
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2008-09-13 16:40:17 +04:00
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*
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2009-02-18 01:30:13 +03:00
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* @param string $classPrefix
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2008-09-13 16:40:17 +04:00
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* @param string $basePath
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*/
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2009-01-03 22:50:13 +03:00
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public function setBasePath($classPrefix, $basePath)
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2008-09-13 16:40:17 +04:00
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{
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2009-01-03 22:50:13 +03:00
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$this->_basePaths[$classPrefix] = $basePath;
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2008-09-13 16:40:17 +04:00
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}
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2009-02-18 01:30:13 +03:00
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2008-09-13 16:40:17 +04:00
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/**
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* Loads the given class or interface.
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*
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2009-01-03 22:50:13 +03:00
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* @param string $classname The name of the class to load.
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2008-09-13 16:40:17 +04:00
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* @return boolean TRUE if the class has been successfully loaded, FALSE otherwise.
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*/
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public function loadClass($className)
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{
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if (class_exists($className, false) || interface_exists($className, false)) {
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return false;
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}
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2009-01-03 22:50:13 +03:00
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$prefix = substr($className, 0, strpos($className, $this->_namespaceSeparator));
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2009-08-11 01:36:57 +04:00
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// If we have a custom path for namespace, use it
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$class = ((isset($this->_basePaths[$prefix])) ? $this->_basePaths[$prefix] . DIRECTORY_SEPARATOR : '')
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. str_replace($this->_namespaceSeparator, DIRECTORY_SEPARATOR, $className) . $this->_fileExtension;
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2008-09-13 16:40:17 +04:00
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2009-08-11 01:36:57 +04:00
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// Assure file exists in codebase before require if flag is active
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2008-09-13 16:40:17 +04:00
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if ($this->_checkFileExists) {
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2009-08-11 01:36:57 +04:00
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if (($fh = @fopen($class, 'r', true)) === false) {
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2008-09-13 16:40:17 +04:00
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return false;
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}
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2009-08-11 01:36:57 +04:00
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2008-09-13 16:40:17 +04:00
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@fclose($fh);
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}
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require $class;
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2009-02-18 01:30:13 +03:00
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2008-09-13 16:40:17 +04:00
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return true;
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}
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2009-02-18 01:30:13 +03:00
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}
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