Puzzle\AMQP\Messages\Chunks\ChunkSize

Complexity

Total Complexity

6

Size/Duplication

Total Lines	43
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	0

Test Coverage

Coverage

100%

Importance

Changes	1
Bugs	0	Features	1

2 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	21	4
A	toBytes()	0	14	2

<?php

namespace Puzzle\AMQP\Messages\Chunks;

final class ChunkSize
{
    private
        $size,
        $unit;

    public function __construct($size)
    {
        $exception = new \InvalidArgumentException("Given chunk size is not valid");

        if(preg_match("~^(\d+)(K|M)?$~", $size, $matches) !== 1)
        {
            throw $exception;
        }

        $this->size = (int) $matches[1];
        if($this->size <= 0)
        {
            throw $exception;
        }

        $this->unit = null;
        if(isset($matches[2]))
        {
            $this->unit = $matches[2];
        }
    }

    public function toBytes()
    {
        $unitsConversion = [
            "K" => 1024,
            "M" => pow(1024, 2),
        ];

        if(empty($this->unit))
        {
            return $this->size;
        }

        return $this->size * $unitsConversion[$this->unit];
    }
}