<?php
namespace Doctrine\Persistence\Mapping\Driver;
use Doctrine\Persistence\Mapping\ClassMetadata;
use Doctrine\Persistence\Mapping\MappingException;
use function array_keys;
use function assert;
use function spl_object_hash;
use function strpos;
/**
* The DriverChain allows you to add multiple other mapping drivers for
* certain namespaces.
*/
class MappingDriverChain implements MappingDriver
{
/**
* The default driver.
*
* @var MappingDriver|null
*/
private $defaultDriver;
/** @var MappingDriver[] */
private $drivers = [];
/**
* Gets the default driver.
*
* @return MappingDriver|null
*/
public function getDefaultDriver()
{
return $this->defaultDriver;
}
/**
* Set the default driver.
*
* @return void
*/
public function setDefaultDriver(MappingDriver $driver)
{
$this->defaultDriver = $driver;
}
/**
* Adds a nested driver.
*
* @param string $namespace
*
* @return void
*/
public function addDriver(MappingDriver $nestedDriver, $namespace)
{
$this->drivers[$namespace] = $nestedDriver;
}
/**
* Gets the array of nested drivers.
*
* @return MappingDriver[] $drivers
*/
public function getDrivers()
{
return $this->drivers;
}
/**
* {@inheritDoc}
*/
public function loadMetadataForClass($className, ClassMetadata $metadata)
{
foreach ($this->drivers as $namespace => $driver) {
assert($driver instanceof MappingDriver);
if (strpos($className, $namespace) === 0) {
$driver->loadMetadataForClass($className, $metadata);
return;
}
}
if ($this->defaultDriver !== null) {
$this->defaultDriver->loadMetadataForClass($className, $metadata);
return;
}
throw MappingException::classNotFoundInNamespaces($className, array_keys($this->drivers));
}
/**
* {@inheritDoc}
*/
public function getAllClassNames()
{
$classNames = [];
$driverClasses = [];
foreach ($this->drivers as $namespace => $driver) {
assert($driver instanceof MappingDriver);
$oid = spl_object_hash($driver);
if (! isset($driverClasses[$oid])) {
$driverClasses[$oid] = $driver->getAllClassNames();
}
foreach ($driverClasses[$oid] as $className) {
if (strpos($className, $namespace) !== 0) {
continue;
}
$classNames[$className] = true;
}
}
if ($this->defaultDriver !== null) {
foreach ($this->defaultDriver->getAllClassNames() as $className) {
$classNames[$className] = true;
}
}
return array_keys($classNames);
}
/**
* {@inheritDoc}
*/
public function isTransient($className)
{
foreach ($this->drivers as $namespace => $driver) {
assert($driver instanceof MappingDriver);
if (strpos($className, $namespace) === 0) {
return $driver->isTransient($className);
}
}
if ($this->defaultDriver !== null) {
return $this->defaultDriver->isTransient($className);
}
return true;
}
}