src/PhpPresentation/IOFactory.php
<?php
/**
* This file is part of PHPPresentation - A pure PHP library for reading and writing
* presentations documents.
*
* PHPPresentation is free software distributed under the terms of the GNU Lesser
* General Public License version 3 as published by the Free Software Foundation.
*
* For the full copyright and license information, please read the LICENSE
* file that was distributed with this source code. For the full list of
* contributors, visit https://github.com/PHPOffice/PHPPresentation/contributors.
*
* @see https://github.com/PHPOffice/PHPPresentation
*
* @license http://www.gnu.org/licenses/lgpl.txt LGPL version 3
*/
declare(strict_types=1);
namespace PhpOffice\PhpPresentation;
use PhpOffice\PhpPresentation\Exception\InvalidClassException;
use PhpOffice\PhpPresentation\Exception\InvalidFileFormatException;
use PhpOffice\PhpPresentation\Reader\ReaderInterface;
use PhpOffice\PhpPresentation\Writer\WriterInterface;
use ReflectionClass;
/**
* IOFactory.
*/
class IOFactory
{
/**
* Autoresolve classes.
*
* @var array<int, string>
*/
private static $autoResolveClasses = ['Serialized', 'ODPresentation', 'PowerPoint97', 'PowerPoint2007'];
/**
* Create writer.
*/
public static function createWriter(PhpPresentation $phpPresentation, string $name = 'PowerPoint2007'): WriterInterface
{
return self::loadClass('PhpOffice\\PhpPresentation\\Writer\\' . $name, 'Writer', $phpPresentation);
}
/**
* Create reader.
*/
public static function createReader(string $name): ReaderInterface
{
return self::loadClass('PhpOffice\\PhpPresentation\\Reader\\' . $name, 'Reader');
}
/**
* Loads PhpPresentation from file using automatic ReaderInterface resolution.
*/
public static function load(string $pFilename): PhpPresentation
{
// Try loading using self::$autoResolveClasses
foreach (self::$autoResolveClasses as $autoResolveClass) {
$reader = self::createReader($autoResolveClass);
if ($reader->canRead($pFilename)) {
return $reader->load($pFilename);
}
}
throw new InvalidFileFormatException(
$pFilename,
self::class,
'Could not automatically determine the good ' . ReaderInterface::class
);
}
/**
* Load class.
*
* @return object
*/
private static function loadClass(string $class, string $type, ?PhpPresentation $phpPresentation = null)
{
if (!class_exists($class)) {
throw new InvalidClassException($class, $type . ': The class doesn\'t exist');
}
if (!self::isConcreteClass($class)) {
throw new InvalidClassException($class, $type . ': The class is an abstract class or an interface');
}
if (null === $phpPresentation) {
return new $class();
}
return new $class($phpPresentation);
}
/**
* Is it a concrete class?
*/
private static function isConcreteClass(string $class): bool
{
$reflection = new ReflectionClass($class);
return !$reflection->isAbstract() && !$reflection->isInterface();
}
}