PasswordValidator but with StringLengthValidator code

PasswordValidator.php

<?php
namespace Me\My\Validation\Validator;

use TYPO3\FLOW3\Annotations as FLOW3;

/**
 * Validator for password
 *
 * @api
 * @FLOW3\Scope("singleton")
 */
class PasswordValidator extends \TYPO3\FLOW3\Validation\Validator\AbstractValidator {

    /**
     * Checks if the given $value is a valid string and its length is between 'minimum' (defaults to 0 if not specified)
     * and 'maximum' (defaults to infinite if not specified) to be specified in the validation options.
     * Note: a value of NULL or empty string ('') is considered valid
     *
     * @param mixed $value The value that should be validated
     * @return void
     * @api
     */
    protected function isValid($value) {
        echo \TYPO3\FLOW3\var_dump($this->options);
        echo "PasswordValidator<br/>";
        // echo $this->options['minimum'];
        echo "minimum ".((isset($this->options['minimum']) === true) ? "gesetzt" : "nicht da") . "<br/>";
        echo "maximum ".((isset($this->options['maximum']) === true) ? "gesetzt" : "nicht da") . "<br/>";
        // echo $this->options['minimum'];
        die();

        if (isset($this->options['minimum']) && isset($this->options['maximum'])
            && $this->options['maximum'] < $this->options['minimum']) {
            throw new \TYPO3\FLOW3\Validation\Exception\InvalidValidationOptionsException('The \'maximum\' is less than the \'minimum\' in the StringLengthValidator.', 1238107096);
        }

        if (is_object($value)) {
            if (!method_exists($value, '__toString')) {
                $this->addError('The given object could not be converted to a string.', 1238110957);
                return;
            }
        } elseif (!is_string($value)) {
            $this->addError('The given value was not a valid string.', 1269883975);
            return;
        }

        $stringLength = strlen($value);
        $isValid = TRUE;
        if (isset($this->options['minimum']) && $stringLength < $this->options['minimum']) {
            $isValid = FALSE;
        }
        if (isset($this->options['maximum']) && $stringLength > $this->options['maximum']) {
            $isValid = FALSE;
        }

        if ($isValid === FALSE) {
            if (isset($this->options['minimum']) && isset($this->options['maximum'])) {
                $this->addError('The length of this text must be between %1$d and %2$d characters.', 1238108067, array($this->options['minimum'], $this->options['maximum']));
            } elseif (isset($this->options['minimum'])) {
                $this->addError('This field must contain at least %1$d characters.', 1238108068, array($this->options['minimum']));
            } else {
                $this->addError('This text may not exceed %1$d characters.', 1238108069, array($this->options['maximum']));
            }
        }
    }
}

?>