8000 [Config] added ClassExistenceResource · symfony/symfony@d98eb7b · GitHub
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[Config] added ClassExistenceResource
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‎src/Symfony/Component/Config/Resource/ClassExistenceResource.php

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Config\Resource;
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/**
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* ClassExistenceResource represents a class availability.
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* Freshness is only evaluated against resource availability.
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*
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* The resource must be a fully-qualified class name.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class ClassExistenceResource implements SelfCheckingResourceInterface, \Serializable
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{
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private $resource;
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private $exists;
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/**
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* @param string $resource The fully-qualified class name
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*/
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public function __construct($resource)
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{
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$this->resource = $resource;
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$this->exists = class_exists($resource);
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}
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/**
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* {@inheritdoc}
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*/
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public function __toString()
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{
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return $this->resource;
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}
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/**
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* @return string The file path to the resource
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*/
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public function getResource()
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{
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return $this->resource;
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}
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/**
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* {@inheritdoc}
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*/
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public function isFresh($timestamp)
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{
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return class_exists($this->resource) === $this->exists;
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}
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/**
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* {@inheritdoc}
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*/
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public function serialize()
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{
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return serialize(array($this->resource, $this->exists));
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}
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/**
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* {@inheritdoc}
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*/
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public function unserialize($serialized)
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{
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list($this->resource, $this->exists) = unserialize($serialized);
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}
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}

‎src/Symfony/Component/Config/Tests/Resource/ClassExistenceResourceTest.php

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Config\Tests\Resource;
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use Symfony\Component\Config\Resource\ClassExistenceResource;
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class ClassExistenceResourceTest extends \PHPUnit_Framework_TestCase
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{
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public function testToString()
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{
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$res = new ClassExistenceResource('BarClass');
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$this->assertSame('BarClass', (string) $res);
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}
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public function testGetResource()
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{
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$res = new ClassExistenceResource('BarClass');
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$this->assertSame('BarClass', $res->getResource());
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}
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public function testIsFreshWhenClassDoesNotExist()
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{
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$res = new ClassExistenceResource('Symfony\Component\Config\Tests\Fixtures\BarClass');
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$this->assertTrue($res->isFresh(time()));
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eval(<<<EOF
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namespace Symfony\Component\Config\Tests\Fixtures;
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class BarClass
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{
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}
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EOF
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);
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$this->assertFalse($res->isFresh(time()));
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}
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public function testIsFreshWhenClassExists()
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{
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$res = new ClassExistenceResource('Symfony\Component\Config\Tests\Resource\ClassExistenceResourceTest');
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$this->assertTrue($res->isFresh(time()));
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}
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}

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