<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\Image;

/**
* Factory for Adapters that Image Library is using to process images
*/
class AdapterFactory
{
/**
* @var Adapter\ConfigInterface
*/
protected $config;

/**
* @var \Magento\Framework\ObjectManagerInterface
*/
protected $objectManager;

/**
* @var array
*/
protected $adapterMap;

/**
* @param \Magento\Framework\ObjectManagerInterface $objectManager
* @param Adapter\ConfigInterface $config
* @param array $adapterMap
*/
public function __construct(
\Magento\Framework\ObjectManagerInterface $objectManager,
\Magento\Framework\Image\Adapter\ConfigInterface $config,
array $adapterMap = []
) {
$this->objectManager = $objectManager;
$this->config = $config;
$this->adapterMap = $adapterMap;
}

/**
* Return specified image adapter
*
* @param string $adapterAlias
* @return \Magento\Framework\Image\Adapter\AdapterInterface
* @throws \InvalidArgumentException
*/
public function create($adapterAlias = null)
{
$this->adapterMap = array_merge($this->config->getAdapters(), $this->adapterMap);
$adapterAlias = !empty($adapterAlias) ? $adapterAlias : $this->config->getAdapterAlias();
if (empty($adapterAlias)) {
throw new \InvalidArgumentException('Image adapter is not selected.');
}
if (empty($this->adapterMap[$adapterAlias]['class'])) {
throw new \InvalidArgumentException("Image adapter for '{$adapterAlias}' is not setup.");
}
$imageAdapter = $this->objectManager->create($this->adapterMap[$adapterAlias]['class']);
if (!$imageAdapter instanceof Adapter\AdapterInterface) {
throw new \InvalidArgumentException(
$this->adapterMap[$adapterAlias]['class'] .
' is not instance of \Magento\Framework\Image\Adapter\AdapterInterface'
);
}
$imageAdapter->checkDependencies();
return $imageAdapter;
}
}