Puzzle\AMQP\Messages\Chunks\ChunkMetadata

Complexity

Total Complexity

8

Size/Duplication

Total Lines	53
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	0

Test Coverage

Coverage

100%

Importance

Changes

0

6 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	6	1
A	buildFromHeaders()	0	14	3
A	playhead()	0	4	1
A	offset()	0	4	1
A	size()	0	4	1
A	toHeaders()	0	8	1

<?php

namespace Puzzle\AMQP\Messages\Chunks;

final class ChunkMetadata
{
    private
        $playhead,
        $offset,
        $size;

    public function __construct($playhead, $offset, $size)
    {
        $this->playhead = $playhead;
        $this->offset = $offset;
        $this->size = $size;
    }

    public static function buildFromHeaders(array $headers)
    {
        $requiredKeys = ['playhead', 'offset', 'size'];

        foreach($requiredKeys as $key)
        {
            if(! isset($headers[$key]))
            {
                throw new \InvalidArgumentException("Missing $key in chunk metadata");
            }
        }

        return new self($headers['playhead'], $headers['offset'], $headers['size']);
    }

    public function playhead()
    {
        return $this->playhead;
    }

    public function offset()
    {
        return $this->offset;
    }

    public function size()
    {
        return $this->size;
    }

    public function toHeaders()
    {
        return [
            'offset' => $this->offset,
            'playhead' => $this->playhead,
            'size' => $this->size,
        ];
    }
}