FOS\RestBundle\Util\ExceptionValueMap

Complexity

Total Complexity

7

Size/Duplication

Total Lines	53
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	0

Test Coverage

Coverage

100%

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
A	resolveException()	0	4	1
A	doResolveClass()	0	14	5

<?php

/*
 * This file is part of the FOSRestBundle package.
 *
 * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace FOS\RestBundle\Util;

/**
 * Stores map of values mapped to exception class
 * Resolves value by exception.
 *
 * @author Mikhail Shamin <munk13@gmail.com>
 *
 * @final since 2.8
 */
class ExceptionValueMap
{
    /**
     * Map of values mapped to exception class
     * key => exception class
     * value => value associated with exception.
     *
     * @var array
     */
    private $map;

    /**
     * @param array $map
     */
    public function __construct(array $map)
    {
        $this->map = $map;
    }

    /**
     * Resolves the value corresponding to an exception object.
     *
     * @param \Exception $exception
     *
     * @return mixed|false Value found or false is not found
     */
    public function resolveException(\Throwable $exception)
    {
        return $this->doResolveClass(get_class($exception));
    }

    /**
     * Resolves the value corresponding to an exception class.
     *
     * @param string $class
     *
     * @return mixed|false if not found
     */
    private function doResolveClass($class)
    {
        foreach ($this->map as $mapClass => $value) {
            if (!$value) {
                continue;
            }

            if ($class === $mapClass || is_subclass_of($class, $mapClass)) {

Due to PHP Bug #53727, is_subclass_of might return inconsistent results on some PHP versions if $mapClass can be an interface. If so, you could instead use ReflectionClass::implementsInterface.

                return $value;
            }
        }

        return false;
    }
}