Metabor\Statemachine\Condition\SymfonyExpression

Complexity

Total Complexity

5

Size/Duplication

Total Lines	60
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	2

Test Coverage

Coverage

90.48%

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	10	2
A	getExpression()	0	11	2
A	checkCondition()	0	8	1

<?php

namespace Metabor\Statemachine\Condition;

use Metabor\Named;
use MetaborStd\Statemachine\ConditionInterface;
use Symfony\Component\ExpressionLanguage\Expression;
use Symfony\Component\ExpressionLanguage\ExpressionLanguage;

/**
 * @author otischlinger
 */
class SymfonyExpression extends Named implements ConditionInterface
{
    /**
     * @var ExpressionLanguage
     */
    private $expressionLanguage;

    /**
     * @var Expression
     */
    private $expression;

    /**
     * @var array
     */
    private $values;

    /**
     * @param string             $name
     * @param array              $values
     * @param ExpressionLanguage $expressionLanguage
     */
    public function __construct($name, array $values = array(), ExpressionLanguage $expressionLanguage = null)
    {
        parent::__construct($name);
        $this->values = $values;
        if ($expressionLanguage) {
            $this->expressionLanguage = $expressionLanguage;
        } else {
            $this->expressionLanguage = new ExpressionLanguage();
        }
    }

    /**
     * @return \Symfony\Component\ExpressionLanguage\Expression
     */
    protected function getExpression()
    {
        if (!$this->expression) {
            $keys = array_keys($this->values);
            $keys[] = 'subject';
            $keys[] = 'context';
            $this->expression = $this->expressionLanguage->parse($this->getName(), $keys);
        }

        return $this->expression;
    }

    /**
     * @see MetaborStd\Statemachine.ConditionInterface::checkCondition()
     */
    public function checkCondition($subject, \ArrayAccess $context)
    {
        $values = $this->values;
        $values['subject'] = $subject;
        $values['context'] = $context;

        return (bool) $this->expressionLanguage->evaluate($this->getExpression(), $values);
    }
}