70 lines
1.8 KiB
PHP
70 lines
1.8 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Process;
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use Symfony\Component\Process\Exception\InvalidArgumentException;
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/**
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* ProcessUtils is a bunch of utility methods.
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*
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* This class contains static methods only and is not meant to be instantiated.
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*
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* @author Martin Hasoň <martin.hason@gmail.com>
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*/
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class ProcessUtils
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{
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/**
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* This class should not be instantiated.
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*/
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private function __construct()
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{
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}
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/**
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* Validates and normalizes a Process input.
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*
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* @param string $caller The name of method call that validates the input
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* @param mixed $input The input to validate
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*
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* @return mixed The validated input
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*
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* @throws InvalidArgumentException In case the input is not valid
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*/
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public static function validateInput($caller, $input)
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{
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if (null !== $input) {
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if (\is_resource($input)) {
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return $input;
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}
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if (\is_string($input)) {
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return $input;
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}
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if (is_scalar($input)) {
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return (string) $input;
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}
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if ($input instanceof Process) {
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return $input->getIterator($input::ITER_SKIP_ERR);
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}
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if ($input instanceof \Iterator) {
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return $input;
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}
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if ($input instanceof \Traversable) {
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return new \IteratorIterator($input);
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}
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throw new InvalidArgumentException(sprintf('"%s" only accepts strings, Traversable objects or stream resources.', $caller));
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}
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return $input;
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}
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}
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