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<?php |
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namespace Akeneo\Component\SpreadsheetParser\Csv; |
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use Symfony\Component\OptionsResolver\OptionsResolver; |
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/** |
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* Row iterator for CSV |
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* |
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* The following options are available : |
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* - length: the maximum length of read lines |
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* - delimiter: the CSV delimiter character |
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* - enclosure: the CSV enclosure character |
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* - escape: the CSV escape character |
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* - encoding: the encoding of the CSV file |
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* |
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* @author Antoine Guigan <[email protected]> |
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* @copyright 2014 Akeneo SAS (http://www.akeneo.com) |
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0) |
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*/ |
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class RowIterator implements \Iterator |
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{ |
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/** |
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* @var string |
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*/ |
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protected $path; |
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/** |
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* @var array |
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*/ |
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protected $options; |
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/** |
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* @var resource |
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*/ |
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protected $fileHandle; |
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/** |
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* @var int |
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*/ |
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protected $currentKey; |
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/** |
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* @var array |
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*/ |
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protected $currentValue; |
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/** |
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* @var boolean |
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*/ |
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protected $valid; |
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/** |
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* Constructor |
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* |
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* @param string $path |
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* @param array $options |
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*/ |
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public function __construct( |
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$path, |
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array $options |
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) { |
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$this->path = $path; |
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$resolver = new OptionsResolver; |
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$this->setDefaultOptions($resolver); |
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$this->options = $resolver->resolve($options); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function current() |
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{ |
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return $this->currentValue; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function key() |
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{ |
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return $this->currentKey; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function next() |
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{ |
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$this->currentValue = fgetcsv( |
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$this->fileHandle, |
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$this->options['length'], |
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$this->options['delimiter'], |
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$this->options['enclosure'], |
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$this->options['escape'] |
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); |
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$this->currentKey++; |
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$this->valid = (false !== $this->currentValue); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function rewind() |
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{ |
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if ($this->fileHandle) { |
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rewind($this->fileHandle); |
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} else { |
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$this->openResource(); |
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} |
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$this->currentKey = 0; |
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$this->next(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function valid() |
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{ |
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return $this->valid; |
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} |
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/** |
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* Sets the default options |
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* |
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* @param OptionsResolver $resolver |
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*/ |
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protected function setDefaultOptions(OptionsResolver $resolver) |
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{ |
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$resolver->setDefined(['encoding']); |
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$resolver->setDefaults( |
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[ |
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'length' => null, |
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'delimiter' => ',', |
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'enclosure' => '"', |
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'escape' => '\\' |
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] |
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); |
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} |
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/** |
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* Opens the file resource |
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*/ |
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protected function openResource() |
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{ |
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$this->fileHandle = fopen($this->path, 'r'); |
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$currentEncoding = $this->getCurrentEncoding(); |
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if (isset($this->options['encoding']) && $currentEncoding !== $this->options['encoding']) { |
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stream_filter_prepend( |
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$this->fileHandle, |
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sprintf( |
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"convert.iconv.%s/%s", |
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$this->options['encoding'], |
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$this->getCurrentEncoding() |
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) |
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); |
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} |
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} |
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/** |
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* Returns the server encoding |
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* |
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* @return string |
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*/ |
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protected function getCurrentEncoding() |
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{ |
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$locale = explode('.', setlocale(LC_CTYPE, 0)); |
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return isset($locale[1]) ? $locale[1] : 'UTF8'; |
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} |
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} |
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