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<?php |
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/** |
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* Platine ETL |
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* |
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* Platine ETL is a library to Extract-Transform-Load Data from various sources |
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* |
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* This content is released under the MIT License (MIT) |
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* |
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* Copyright (c) 2020 Platine ETL |
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* Copyright (c) 2019 Benoit POLASZEK |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in all |
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* copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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declare(strict_types=1); |
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namespace Platine\Etl\Iterator; |
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use Countable; |
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use FilterIterator; |
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use SplFileObject; |
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/** |
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* @class CsvFileIterator |
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* @package Platine\Etl\Iterator |
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*/ |
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class CsvFileIterator extends FilterIterator implements Countable, CsvIteratorInterface |
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{ |
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/** |
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* The file to be used |
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* @var SplFileObject |
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*/ |
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protected SplFileObject $file; |
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/** |
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* The total record in CSV |
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* @var int |
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*/ |
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protected int $totalLine = 0; |
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/** |
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* Create new instance |
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* @param SplFileObject $file |
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* @param string $delimiter |
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* @param string $enclosure |
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* @param string $escapeString |
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*/ |
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public function __construct( |
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SplFileObject $file, |
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string $delimiter = ',', |
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string $enclosure = '"', |
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string $escapeString = '\\' |
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) { |
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$this->file = $file; |
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$this->file->setCsvControl($delimiter, $enclosure, $escapeString); |
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$this->file->setFlags(SplFileObject::READ_CSV); |
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parent::__construct($this->file); |
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} |
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/** |
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* Create file object from filename |
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* @param string $filename |
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* @param string $delimiter |
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* @param string $enclosure |
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* @param string $escapeString |
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* @return self |
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*/ |
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public static function createFromFilename( |
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string $filename, |
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string $delimiter = ',', |
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string $enclosure = '"', |
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string $escapeString = '\\' |
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): self { |
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return new static( |
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new SplFileObject($filename, 'r'), |
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$delimiter, |
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$enclosure, |
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$escapeString |
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); |
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} |
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/** |
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* {@inheritodc} |
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*/ |
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public function accept(): bool |
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{ |
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$current = $this->getInnerIterator()->current(); |
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if (!is_array($current)) { |
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return false; |
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} |
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return count( |
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array_filter( |
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$current, |
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function ($cell) { |
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return $cell !== null; |
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} |
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) |
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) > 0; |
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} |
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/** |
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* {@inheritodc} |
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*/ |
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public function count(): int |
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{ |
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if ($this->totalLine === 0) { |
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$this->rewind(); |
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$this->totalLine = count(iterator_to_array($this)); |
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} |
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return $this->totalLine; |
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} |
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} |
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platine-php /
etl
