--- /dev/null
+<?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 MIT license. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\Common\Proxy;
+
+use Doctrine\Common\Persistence\Mapping\ClassMetadata;
+use Doctrine\Common\Persistence\Mapping\ClassMetadataFactory;
+use Doctrine\Common\Proxy\Exception\InvalidArgumentException;
+use Doctrine\Common\Proxy\Exception\OutOfBoundsException;
+use Doctrine\Common\Util\ClassUtils;
+
+/**
+ * Abstract factory for proxy objects.
+ *
+ * @author Benjamin Eberlei <kontakt@beberlei.de>
+ */
+abstract class AbstractProxyFactory
+{
+ /**
+ * Never autogenerate a proxy and rely that it was generated by some
+ * process before deployment.
+ *
+ * @var integer
+ */
+ const AUTOGENERATE_NEVER = 0;
+
+ /**
+ * Always generates a new proxy in every request.
+ *
+ * This is only sane during development.
+ *
+ * @var integer
+ */
+ const AUTOGENERATE_ALWAYS = 1;
+
+ /**
+ * Autogenerate the proxy class when the proxy file does not exist.
+ *
+ * This strategy causes a file exists call whenever any proxy is used the
+ * first time in a request.
+ *
+ * @var integer
+ */
+ const AUTOGENERATE_FILE_NOT_EXISTS = 2;
+
+ /**
+ * Generate the proxy classes using eval().
+ *
+ * This strategy is only sane for development, and even then it gives me
+ * the creeps a little.
+ *
+ * @var integer
+ */
+ const AUTOGENERATE_EVAL = 3;
+
+ /**
+ * @var \Doctrine\Common\Persistence\Mapping\ClassMetadataFactory
+ */
+ private $metadataFactory;
+
+ /**
+ * @var \Doctrine\Common\Proxy\ProxyGenerator the proxy generator responsible for creating the proxy classes/files.
+ */
+ private $proxyGenerator;
+
+ /**
+ * @var bool Whether to automatically (re)generate proxy classes.
+ */
+ private $autoGenerate;
+
+ /**
+ * @var \Doctrine\Common\Proxy\ProxyDefinition[]
+ */
+ private $definitions = [];
+
+ /**
+ * @param \Doctrine\Common\Proxy\ProxyGenerator $proxyGenerator
+ * @param \Doctrine\Common\Persistence\Mapping\ClassMetadataFactory $metadataFactory
+ * @param bool|int $autoGenerate
+ */
+ public function __construct(ProxyGenerator $proxyGenerator, ClassMetadataFactory $metadataFactory, $autoGenerate)
+ {
+ $this->proxyGenerator = $proxyGenerator;
+ $this->metadataFactory = $metadataFactory;
+ $this->autoGenerate = (int)$autoGenerate;
+ }
+
+ /**
+ * Gets a reference proxy instance for the entity of the given type and identified by
+ * the given identifier.
+ *
+ * @param string $className
+ * @param array $identifier
+ *
+ * @return \Doctrine\Common\Proxy\Proxy
+ *
+ * @throws \Doctrine\Common\Proxy\Exception\OutOfBoundsException
+ */
+ public function getProxy($className, array $identifier)
+ {
+ $definition = isset($this->definitions[$className])
+ ? $this->definitions[$className]
+ : $this->getProxyDefinition($className);
+ $fqcn = $definition->proxyClassName;
+ $proxy = new $fqcn($definition->initializer, $definition->cloner);
+
+ foreach ($definition->identifierFields as $idField) {
+ if (! isset($identifier[$idField])) {
+ throw OutOfBoundsException::missingPrimaryKeyValue($className, $idField);
+ }
+
+ $definition->reflectionFields[$idField]->setValue($proxy, $identifier[$idField]);
+ }
+
+ return $proxy;
+ }
+
+ /**
+ * Generates proxy classes for all given classes.
+ *
+ * @param \Doctrine\Common\Persistence\Mapping\ClassMetadata[] $classes The classes (ClassMetadata instances)
+ * for which to generate proxies.
+ * @param string $proxyDir The target directory of the proxy classes. If not specified, the
+ * directory configured on the Configuration of the EntityManager used
+ * by this factory is used.
+ * @return int Number of generated proxies.
+ */
+ public function generateProxyClasses(array $classes, $proxyDir = null)
+ {
+ $generated = 0;
+
+ foreach ($classes as $class) {
+ if ($this->skipClass($class)) {
+ continue;
+ }
+
+ $proxyFileName = $this->proxyGenerator->getProxyFileName($class->getName(), $proxyDir);
+
+ $this->proxyGenerator->generateProxyClass($class, $proxyFileName);
+
+ $generated += 1;
+ }
+
+ return $generated;
+ }
+
+ /**
+ * Reset initialization/cloning logic for an un-initialized proxy
+ *
+ * @param \Doctrine\Common\Proxy\Proxy $proxy
+ *
+ * @return \Doctrine\Common\Proxy\Proxy
+ *
+ * @throws \Doctrine\Common\Proxy\Exception\InvalidArgumentException
+ */
+ public function resetUninitializedProxy(Proxy $proxy)
+ {
+ if ($proxy->__isInitialized()) {
+ throw InvalidArgumentException::unitializedProxyExpected($proxy);
+ }
+
+ $className = ClassUtils::getClass($proxy);
+ $definition = isset($this->definitions[$className])
+ ? $this->definitions[$className]
+ : $this->getProxyDefinition($className);
+
+ $proxy->__setInitializer($definition->initializer);
+ $proxy->__setCloner($definition->cloner);
+
+ return $proxy;
+ }
+
+ /**
+ * Get a proxy definition for the given class name.
+ *
+ * @param string $className
+ *
+ * @return ProxyDefinition
+ */
+ private function getProxyDefinition($className)
+ {
+ $classMetadata = $this->metadataFactory->getMetadataFor($className);
+ $className = $classMetadata->getName(); // aliases and case sensitivity
+
+ $this->definitions[$className] = $this->createProxyDefinition($className);
+ $proxyClassName = $this->definitions[$className]->proxyClassName;
+
+ if ( ! class_exists($proxyClassName, false)) {
+ $fileName = $this->proxyGenerator->getProxyFileName($className);
+
+ switch ($this->autoGenerate) {
+ case self::AUTOGENERATE_NEVER:
+ require $fileName;
+ break;
+
+ case self::AUTOGENERATE_FILE_NOT_EXISTS:
+ if ( ! file_exists($fileName)) {
+ $this->proxyGenerator->generateProxyClass($classMetadata, $fileName);
+ }
+ require $fileName;
+ break;
+
+ case self::AUTOGENERATE_ALWAYS:
+ $this->proxyGenerator->generateProxyClass($classMetadata, $fileName);
+ require $fileName;
+ break;
+
+ case self::AUTOGENERATE_EVAL:
+ $this->proxyGenerator->generateProxyClass($classMetadata, false);
+ break;
+ }
+ }
+
+ return $this->definitions[$className];
+ }
+
+ /**
+ * Determine if this class should be skipped during proxy generation.
+ *
+ * @param \Doctrine\Common\Persistence\Mapping\ClassMetadata $metadata
+ *
+ * @return bool
+ */
+ abstract protected function skipClass(ClassMetadata $metadata);
+
+ /**
+ * @param string $className
+ *
+ * @return ProxyDefinition
+ */
+ abstract protected function createProxyDefinition($className);
+}
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