Namespaces

• ICanBoogie
  • Validate
    • Reader
    • Validation
    • Validator
    • ValidatorProvider

Classes

• AbstractValidatorProvider
• BuiltinValidatorProvider

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<?php

/*
 * This file is part of the ICanBoogie package.
 *
 * (c) Olivier Laviale <olivier.laviale@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace ICanBoogie\Validate\ValidatorProvider;

use ICanBoogie\Validate\Validator;
use ICanBoogie\Validate\ValidatorProvider;

/**
 * Abstract class for validator provider.
 */
abstract class AbstractValidatorProvider implements ValidatorProvider
{
    /**
     * @var Validator[]
     */
    private $instances = [];

    /**
     * @var array
     */
    private $aliases = [];

    /**
     * @param Validator[] $instances
     * @param array $aliases
     */
    public function __construct(array $instances = [], array $aliases = [])
    {
        $this->instances = $instances;
        $this->aliases = $aliases;
    }

    /**
     * Returns a validator.
     *
     * @param string $class_or_alias
     *
     * @return Validator
     */
    public function __invoke($class_or_alias)
    {
        $class = $this->map($class_or_alias);
        $validator = &$this->instances[$class];

        return $validator ?: $validator = $this->instantiate($class);
    }

    /**
     * Tries to map an validator alias into a validator class.
     *
     * @param string $class_or_alias The class or alias of a validator.
     *
     * @return string
     */
    protected function map($class_or_alias)
    {
        return isset($this->aliases[$class_or_alias]) ? $this->aliases[$class_or_alias] : $class_or_alias;
    }

    /**
     * Instantiates a validator.
     *
     * @param string $class
     *
     * @return Validator
     */
    protected function instantiate($class)
    {
        return new $class;
    }
}