kekrozsak/vendor/doctrine/common/lib/Doctrine/Common/Annotations/CachedReader.php

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<?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\Common\Annotations;
use Doctrine\Common\Cache\Cache;
/**
* A cache aware annotation reader.
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
* @author Benjamin Eberlei <kontakt@beberlei.de>
*/
final class CachedReader implements Reader
{
private static $CACHE_SALT = '@[Annot]';
/**
* @var Reader
*/
private $delegate;
/**
* @var Cache
*/
private $cache;
/**
* @var boolean
*/
private $debug;
/**
* @var array
*/
private $loadedAnnotations;
/**
* @param Reader $reader
* @param Cache $cache
*/
public function __construct(Reader $reader, Cache $cache, $debug = false)
{
$this->delegate = $reader;
$this->cache = $cache;
$this->debug = $debug;
}
public function getClassAnnotations(\ReflectionClass $class)
{
$cacheKey = $class->getName() . self::$CACHE_SALT;
if (isset($this->loadedAnnotations[$cacheKey])) {
return $this->loadedAnnotations[$cacheKey];
}
// Attempt to grab data from cache
if (($data = $this->cache->fetch($cacheKey)) !== false) {
if (!$this->debug || $this->isCacheFresh($cacheKey, $class)) {
return $data;
}
}
$annots = $this->delegate->getClassAnnotations($class);
$this->cache->save($cacheKey, $annots);
$this->cache->save('[C]'.$cacheKey, time());
return $this->loadedAnnotations[$cacheKey] = $annots;
}
public function getClassAnnotation(\ReflectionClass $class, $annotationName)
{
foreach ($this->getClassAnnotations($class) as $annot) {
if ($annot instanceof $annotationName) {
return $annot;
}
}
return null;
}
public function getPropertyAnnotations(\ReflectionProperty $property)
{
$class = $property->getDeclaringClass();
$cacheKey = $class->getName().'$'.$property->getName().self::$CACHE_SALT;
if (isset($this->loadedAnnotations[$cacheKey])) {
return $this->loadedAnnotations[$cacheKey];
}
// Attempt to grab data from cache
if (($data = $this->cache->fetch($cacheKey)) !== false) {
if (!$this->debug || $this->isCacheFresh($cacheKey, $class)) {
return $data;
}
}
$annots = $this->delegate->getPropertyAnnotations($property);
$this->cache->save($cacheKey, $annots);
$this->cache->save('[C]'.$cacheKey, time());
return $this->loadedAnnotations[$cacheKey] = $annots;
}
public function getPropertyAnnotation(\ReflectionProperty $property, $annotationName)
{
foreach ($this->getPropertyAnnotations($property) as $annot) {
if ($annot instanceof $annotationName) {
return $annot;
}
}
return null;
}
public function getMethodAnnotations(\ReflectionMethod $method)
{
$class = $method->getDeclaringClass();
$cacheKey = $class->getName().'#'.$method->getName().self::$CACHE_SALT;
if (isset($this->loadedAnnotations[$cacheKey])) {
return $this->loadedAnnotations[$cacheKey];
}
// Attempt to grab data from cache
if (($data = $this->cache->fetch($cacheKey)) !== false) {
if (!$this->debug || $this->isCacheFresh($cacheKey, $class)) {
return $data;
}
}
$annots = $this->delegate->getMethodAnnotations($method);
$this->cache->save($cacheKey, $annots);
$this->cache->save('[C]'.$cacheKey, time());
return $this->loadedAnnotations[$cacheKey] = $annots;
}
public function getMethodAnnotation(\ReflectionMethod $method, $annotationName)
{
foreach ($this->getMethodAnnotations($method) as $annot) {
if ($annot instanceof $annotationName) {
return $annot;
}
}
return null;
}
public function clearLoadedAnnotations()
{
$this->loadedAnnotations = array();
}
private function isCacheFresh($cacheKey, \ReflectionClass $class)
{
if (false === $filename = $class->getFilename()) {
return true;
}
return $this->cache->fetch('[C]'.$cacheKey) >= filemtime($filename);
}
}