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<?php |
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/** |
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* Analytics |
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* |
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* This file is licensed under the Affero General Public License version 3 or |
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* later. See the LICENSE.md file. |
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* |
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* @author Marcel Scherello <[email protected]> |
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* @copyright 2020 Marcel Scherello |
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*/ |
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namespace OCA\Analytics\Datasource; |
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use OCP\Files\IRootFolder; |
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use OCP\Files\NotFoundException; |
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use OCP\IL10N; |
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use OCP\ILogger; |
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class File implements IDatasource |
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{ |
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private $logger; |
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private $rootFolder; |
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private $userId; |
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private $l10n; |
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public function __construct( |
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$userId, |
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IL10N $l10n, |
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ILogger $logger, |
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IRootFolder $rootFolder |
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) |
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{ |
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$this->userId = $userId; |
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$this->l10n = $l10n; |
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$this->logger = $logger; |
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$this->rootFolder = $rootFolder; |
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} |
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/** |
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* @return string Display Name of the datasource |
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*/ |
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public function getName(): string |
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{ |
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return $this->l10n->t('Local file'); |
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} |
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/** |
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* @return int digit unique datasource id |
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*/ |
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public function getId(): int |
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{ |
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return 1; |
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} |
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/** |
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* @return array available options of the datasoure |
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*/ |
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public function getTemplate(): array |
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{ |
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$template = array(); |
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array_push($template, ['id' => 'link', 'name' => 'Filelink', 'placeholder' => 'filelink']); |
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array_push($template, ['id' => 'columns', 'name' => $this->l10n->t('Select columns'), 'placeholder' => $this->l10n->t('e.g. 1,2,4 or leave empty')]); |
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array_push($template, ['id' => 'offset', 'name' => $this->l10n->t('Ignore leading rows'), 'placeholder' => $this->l10n->t('Number of rows')]); |
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return $template; |
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} |
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/** |
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* Read the Data |
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* @param $option |
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* @return array available options of the datasoure |
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* @throws NotFoundException |
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* @throws \OCP\Files\NotPermittedException |
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*/ |
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public function readData($option): array |
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{ |
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$data = array(); |
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$header = array(); |
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$headerrow = $errorMessage = 0; |
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$selectedColumns = array(); |
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if (isset($option['path'])) { |
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$file = $this->rootFolder->getUserFolder($this->userId)->get($option['path']); |
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} else { |
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//$this->logger->debug('FileService 53 file content:' . $option['user_id'] . $option['link']); |
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$file = $this->rootFolder->getUserFolder($option['user_id'])->get($option['link']); |
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} |
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$rows = str_getcsv($file->getContent(), "\n"); |
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// remove x number of rows from the beginning |
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if (isset($option['offset']) and is_numeric($option['offset'])) { |
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$rows = array_slice($rows, $option['offset']); |
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} |
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// ensure that all values are integers |
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if (isset($option['columns'])) { |
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$new = array(); |
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$selectedColumns = str_getcsv($option['columns'], ','); |
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foreach ($selectedColumns as $value) { |
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if (is_numeric($value)) { |
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array_push($new, $value); |
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} |
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} |
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$selectedColumns = $new; |
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} |
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$delimiter = $this->detectDelimiter($rows[0]); |
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foreach ($rows as &$row) { |
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$row = str_getcsv($row, $delimiter); |
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$rowMinimized = array(); |
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if (count($selectedColumns) !== 0) { |
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foreach ($selectedColumns as $selectedColumn) { |
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array_push($rowMinimized, $row[$selectedColumn - 1]); |
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} |
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} else { |
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$rowMinimized = $row; |
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} |
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if ($headerrow === 0) { |
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$header = $rowMinimized; |
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$headerrow = 1; |
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} else { |
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array_push($data, $rowMinimized); |
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} |
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} |
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return [ |
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'header' => $header, |
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'data' => $data, |
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'error' => $errorMessage, |
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]; |
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} |
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private function detectDelimiter($data) |
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{ |
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$delimiters = ["\t", ";", "|", ","]; |
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$data_2 = array(); |
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$delimiter = $delimiters[0]; |
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foreach ($delimiters as $d) { |
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//$firstRow = str_getcsv($data, "\n")[0]; |
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$data_1 = str_getcsv($data, $d); |
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if (sizeof($data_1) > sizeof($data_2)) { |
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$delimiter = $d; |
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$data_2 = $data_1; |
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} |
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} |
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return $delimiter; |
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} |
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} |
Rello /
analytics
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