Hal\Violation\Package\StableAbstractionsPrinciple

Complexity

Total Complexity

7

Size/Duplication

Total Lines	39
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Importance

Changes

0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	getName()	0	4	1
A	apply()	0	10	3
A	getLevel()	0	4	1
A	getDescription()	0	12	2

<?php

namespace Hal\Violation\Package;

use Hal\Metric\Metric;
use Hal\Metric\PackageMetric;
use Hal\Violation\Violation;

class StableAbstractionsPrinciple implements Violation
{
    /** @var PackageMetric|null */
    private $metric;

    public function getName()
    {
        return 'Stable Abstractions Principle';
    }

    public function apply(Metric $metric)
    {
        if (! $metric instanceof PackageMetric) {
            return;
        }
        if (abs($metric->getDistance()) > sqrt(2)/4) {
            $this->metric = $metric;
            $metric->get('violations')->add($this);

The method add cannot be called on $metric->get('violations') (of type null).

        }
    }

    public function getLevel()
    {
        return Violation::WARNING;
    }

    public function getDescription()
    {
        $violation = $this->metric->getDistance() > 0
            ? 'instable and abstract'
            : 'stable and concrete';

        return <<<EOT
Packages should be either abstract and stable or concrete and instable.

This package is {$violation}.
EOT;
    }
}