90 lines
1.8 KiB
PHP
90 lines
1.8 KiB
PHP
<?php
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/*
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* (c) Jeroen van den Enden <info@endroid.nl>
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*
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* This source file is subject to the MIT license that is bundled
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* with this source code in the file LICENSE.
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*/
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namespace Endroid\QrCode;
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use Endroid\QrCode\Exception\InvalidWriterException;
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use Endroid\QrCode\Writer\WriterInterface;
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class WriterRegistry implements WriterRegistryInterface
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{
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/**
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* @var WriterInterface[]
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*/
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protected $writers;
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/**
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* @var WriterInterface
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*/
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protected $defaultWriter;
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public function __construct()
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{
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$this->writers = [];
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}
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/**
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* {@inheritdoc}
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*/
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public function addWriter(WriterInterface $writer, $setAsDefault = false)
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{
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$this->writers[$writer->getName()] = $writer;
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if ($setAsDefault || 1 === count($this->writers)) {
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$this->defaultWriter = $writer;
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}
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}
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/**
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* @param $name
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*
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* @return WriterInterface
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*/
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public function getWriter($name)
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{
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$this->assertValidWriter($name);
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return $this->writers[$name];
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}
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/**
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* @return WriterInterface
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*
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* @throws InvalidWriterException
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*/
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public function getDefaultWriter()
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{
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if ($this->defaultWriter instanceof WriterInterface) {
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return $this->defaultWriter;
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}
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throw new InvalidWriterException('Please set the default writer via the second argument of addWriter');
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}
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/**
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* @return WriterInterface[]
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*/
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public function getWriters()
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{
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return $this->writers;
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}
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/**
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* @param string $writer
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*
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* @throws InvalidWriterException
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*/
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protected function assertValidWriter($writer)
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{
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if (!isset($this->writers[$writer])) {
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throw new InvalidWriterException('Invalid writer "'.$writer.'"');
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}
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}
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}
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