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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\ImportExport\Model\Export\Adapter;
use Magento\Framework\Filesystem;
use Magento\Framework\App\Filesystem\DirectoryList;
/**
* Abstract adapter model
*
* @api
* @since 100.0.2
*/
abstract class AbstractAdapter
{
/**
* Destination file path.
*
* @var string
*/
protected $_destination;
/**
* Header columns names.
*
* @var array
*/
protected $_headerCols = null;
/**
* @var \Magento\Framework\Filesystem\Directory\Write
*/
protected $_directoryHandle;
/**
* Constructor
*
* @param Filesystem $filesystem
* @param string|null $destination
* @param string $destinationDirectoryCode
* @throws \Magento\Framework\Exception\LocalizedException
*/
public function __construct(
\Magento\Framework\Filesystem $filesystem,
$destination = null,
$destinationDirectoryCode = DirectoryList::VAR_IMPORT_EXPORT
) {
$this->_directoryHandle = $filesystem->getDirectoryWrite($destinationDirectoryCode);
if (!$destination) {
$destination = uniqid('importexport_');
$this->_directoryHandle->touch($destination);
}
if (!is_string($destination)) {
throw new \Magento\Framework\Exception\LocalizedException(
__('The destination file path must be a string.')
);
}
if (!$this->_directoryHandle->isWritable()) {
throw new \Magento\Framework\Exception\LocalizedException(__('The destination directory is not writable.'));
}
if ($this->_directoryHandle->isFile($destination) && !$this->_directoryHandle->isWritable($destination)) {
throw new \Magento\Framework\Exception\LocalizedException(__('Destination file is not writable'));
}
$this->_destination = $destination;
$this->_init();
}
/**
* Method called as last step of object instance creation. Can be overridden in child classes.
*
* @return $this
*/
protected function _init()
{
return $this;
}
/**
* Get contents of export file
*
* @return string
*/
public function getContents()
{
return $this->_directoryHandle->readFile($this->_destination);
}
/**
* MIME-type for 'Content-Type' header
*
* @return string
*/
public function getContentType()
{
return 'application/octet-stream';
}
/**
* Return file extension for downloading
*
* @return string
*/
public function getFileExtension()
{
return '';
}
/**
* Set column names
*
* @param array $headerColumns
* @return $this
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
public function setHeaderCols(array $headerColumns)
{
return $this;
}
/**
* Write row data to source file
*
* @param array $rowData
* @return $this
*/
abstract public function writeRow(array $rowData);
}