Alchemy\Zippy\Resource\Resolver\ProtocolBasedWriterResolver

Complexity

Total Complexity

5

Size/Duplication

Total Lines	46
Duplicated Lines	6.52 %

Coupling/Cohesion

Components	1
Dependencies	1

Importance

Changes	1
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	addWriter()	0	11	3
A	resolveWriter()	3	11	2

<?php

namespace Alchemy\Zippy\Resource\Resolver;

use Alchemy\Zippy\Resource\ResourceUri;
use Alchemy\Zippy\Resource\ResourceWriter;
use Alchemy\Zippy\Resource\ResourceWriterResolver;

class ProtocolBasedWriterResolver implements ResourceWriterResolver
{
    /**
     * @var ResourceWriter[]
     */
    private $writers = [];

    /**
     * @var int[] Dictionary of writer indexes, indexed by resource protocol name
     */
    private $protocolWriterIndexes = [];

    /**
     * @param ResourceWriter $writer
     * @param string|string[] $protocols List of compatible protocols
     */
    public function addWriter(ResourceWriter $writer, $protocols)
    {
        $protocols = is_array($protocols) ? $protocols : [ $protocols ];
        $index = count($this->writers);

        $this->writers[$index] = $writer;

        foreach ($protocols as $protocol) {
            $this->protocolWriterIndexes[$protocol] = $index;
        }
    }

    /**
     * Resolves a writer for the given resource URI.
     *
     * @param ResourceUri $resource
     * @return ResourceWriter
     */
    public function resolveWriter(ResourceUri $resource)
    {
        if (! array_key_exists($resource->getProtocol(), $this->protocolWriterIndexes)) {

This code seems to be duplicated across your project.

            throw new \RuntimeException('Unsupported protocol: ' . $resource->getProtocol() . '( ' . $resource  . ')');
        }

        /** @var int $index */
        $index = $this->protocolWriterIndexes[$resource->getProtocol()];

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