Developer
<?php
namespace Illuminate\Support;
use Closure;
use Illuminate\Contracts\Container\Container;
use InvalidArgumentException;
abstract class Manager
{
/**
* The container instance.
*
* @var \Illuminate\Contracts\Container\Container
*/
protected $container;
/**
* The configuration repository instance.
*
* @var \Illuminate\Contracts\Config\Repository
*/
protected $config;
/**
* The registered custom driver creators.
*
* @var array
*/
protected $customCreators = [];
/**
* The array of created "drivers".
*
* @var array
*/
protected $drivers = [];
/**
* Create a new manager instance.
*
* @param \Illuminate\Contracts\Container\Container $container
* @return void
*/
public function __construct(Container $container)
{
$this->container = $container;
$this->config = $container->make('config');
}
/**
* Get the default driver name.
*
* @return string
*/
abstract public function getDefaultDriver();
/**
* Get a driver instance.
*
* @param string|null $driver
* @return mixed
*
* @throws \InvalidArgumentException
*/
public function driver($driver = null)
{
$driver = $driver ?: $this->getDefaultDriver();
if (is_null($driver)) {
throw new InvalidArgumentException(sprintf(
'Unable to resolve NULL driver for [%s].', static::class
));
}
// If the given driver has not been created before, we will create the instances
// here and cache it so we can return it next time very quickly. If there is
// already a driver created by this name, we'll just return that instance.
if (! isset($this->drivers[$driver])) {
$this->drivers[$driver] = $this->createDriver($driver);
}
return $this->drivers[$driver];
}
/**
* Create a new driver instance.
*
* @param string $driver
* @return mixed
*
* @throws \InvalidArgumentException
*/
protected function createDriver($driver)
{
// First, we will determine if a custom driver creator exists for the given driver and
// if it does not we will check for a creator method for the driver. Custom creator
// callbacks allow developers to build their own "drivers" easily using Closures.
if (isset($this->customCreators[$driver])) {
return $this->callCustomCreator($driver);
} else {
$method = 'create'.Str::studly($driver).'Driver';
if (method_exists($this, $method)) {
return $this->$method();
}
}
throw new InvalidArgumentException("Driver [$driver] not supported.");
}
/**
* Call a custom driver creator.
*
* @param string $driver
* @return mixed
*/
protected function callCustomCreator($driver)
{
return $this->customCreators[$driver]($this->container);
}
/**
* Register a custom driver creator Closure.
*
* @param string $driver
* @param \Closure $callback
* @return $this
*/
public function extend($driver, Closure $callback)
{
$this->customCreators[$driver] = $callback;
return $this;
}
/**
* Get all of the created "drivers".
*
* @return array
*/
public function getDrivers()
{
return $this->drivers;
}
/**
* Get the container instance used by the manager.
*
* @return \Illuminate\Contracts\Container\Container
*/
public function getContainer()
{
return $this->container;
}
/**
* Set the container instance used by the manager.
*
* @param \Illuminate\Contracts\Container\Container $container
* @return $this
*/
public function setContainer(Container $container)
{
$this->container = $container;
return $this;
}
/**
* Forget all of the resolved driver instances.
*
* @return $this
*/
public function forgetDrivers()
{
$this->drivers = [];
return $this;
}
/**
* Dynamically call the default driver instance.
*
* @param string $method
* @param array $parameters
* @return mixed
*/
public function __call($method, $parameters)
{
return $this->driver()->$method(...$parameters);
}
}
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