hiqdev\php\units\AbstractUnit

Complexity

Total Complexity

13

Size/Duplication

Total Lines	108
Duplicated Lines	0 %

Coupling/Cohesion

Components	3
Dependencies	2

Test Coverage

Coverage

85.71%

Importance

Changes

0

12 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	5	1
A	getConverter()	0	4	1
A	getName()	0	4	1
A	getMeasure()	0	4	1
A	getCalculator()	0	4	1
A	equals()	0	4	1
A	isConvertible()	0	4	1
A	convert()	0	4	1
A	__callStatic()	0	4	1
A	create()	0	8	2
A	findConverter()	0	4	1
A	jsonSerialize()	0	4	1

<?php
/**
 * PHP Units of Measure Library
 *
 * @link      https://github.com/hiqdev/php-units
 * @package   php-units
 * @license   BSD-3-Clause
 * @copyright Copyright (c) 2017-2018, HiQDev (http://hiqdev.com/)
 */

namespace hiqdev\php\units;

use JsonSerializable;
use hiqdev\php\units\exceptions\InvalidConfigException;

/**
 * Abstract Unit of measure. E.g.
 * Almost final.
 * Only findCoverter can be changed.
 *
 * @see UnitInterface
 * @author Andrii Vasyliev <sol@hiqdev.com>
 */
abstract class AbstractUnit implements UnitInterface, JsonSerializable
{
    /**
     * @var string
     */
    private $name;

    /**
     * @var ConverterInterface
     */
    private $converter;

    private function __construct($name, ConverterInterface $converter)
    {
        $this->name = $name;
        $this->converter = $converter;
    }

    private function getConverter()
    {
        return $this->converter;
    }

    /**
     * {@inheritdoc}
     */
    final public function getName()
    {
        return $this->name;
    }

    /**
     * {@inheritdoc}
     */
    final public function getMeasure()
    {
        return $this->getConverter()->getMeasure($this);
    }

    /**
     * {@inheritdoc}
     */
    final public function getCalculator()
    {
        return $this->getConverter()->getCalculator($this);
    }

    /**
     * {@inheritdoc}
     */
    final public function equals(UnitInterface $other)
    {
        return $this->getConverter()->equals($this, $other);
    }

    /**
     * {@inheritdoc}
     */
    final public function isConvertible(UnitInterface $other)
    {
        return $this->getConverter()->isConvertible($this, $other);
    }

    /**
     * {@inheritdoc}
     */
    final public function convert(UnitInterface $other, $quantity)
    {
        return $this->getConverter()->convert($this, $other, $quantity);
    }

    /**
     * @var Unit[]
     */
    protected static $units;

    final public static function __callStatic($name, $args)
    {
        return static::create($name);
    }

    public static function create($name)
    {
        if (!isset(static::$units[$name])) {
            static::$units[$name] = new static($name, static::findConverter($name));
        }

        return static::$units[$name];
    }

    /**
     * Returns converter for given unit name.
     * The only function to change in child classes.
     * XXX Should be defined as abstract but not supported in PHP5.
     * @param string $name
     * @throws InvalidConfigException
     * @return ConverterInterface
     */
    protected static function findConverter($name)

The parameter $name is not used and could be removed.

    {
        throw new InvalidConfigException('findConverter method must be redefined');
    }

    public function jsonSerialize()
    {
        return ['name' => $this->name];
    }
}