TextFile\Factory\WriterFactory

Complexity

Total Complexity

4

Size/Duplication

Total Lines	36
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Test Coverage

Coverage

70%

Importance

Changes	1
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	createWriter()	0	14	3
A	addWriter()	0	4	1

<?php

namespace TextFile\Factory;

use TextFile\Exception\InvalidWriterException;
use TextFile\Writer\WriterInterface;

/**
 * Class WriterFactory
 *
 * @package TextFile\Factory
 */
class WriterFactory
{
    /**
     * @var WriterInterface[]
     */
    protected $writers = [];

    /**
     * @param string $writerClass
     *
     * @return WriterInterface
     * @throws InvalidWriterException
     */
    public function createWriter($writerClass)
    {
        if (isset($this->writers[$writerClass])) {
            return $this->writers[$writerClass];
        }

        if (!isset(class_implements($writerClass)[WriterInterface::class])) {
            throw new InvalidWriterException();
        }

        $this->addWriter($writerClass);

        return $this->writers[$writerClass];
    }

    /**
     * @param string $writerClass
     */
    protected function addWriter($writerClass)
    {
        $this->writers[$writerClass] = new $writerClass;
    }
}