<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\File\Transfer;
/**
* Base class for all protocols supporting file transfers
*
*/
class Transfer
{
/**
* Array holding all directions
*
* @var array
*/
protected $adapter = array();
/**
* Creates a file processing handler
*
* @param string $adapter Adapter to use
* @param bool $direction OPTIONAL False means Download, true means upload
* @param array $options OPTIONAL Options to set for this adapter
* @throws Exception\InvalidArgumentException
*/
public function __construct($adapter = 'Http', $direction = false, $options = array())
{
$this->setAdapter($adapter, $direction, $options);
}
/**
* Sets a new adapter
*
* @param string $adapter Adapter to use
* @param bool $direction OPTIONAL False means Download, true means upload
* @param array $options OPTIONAL Options to set for this adapter
* @return Transfer
* @throws Exception\InvalidArgumentException
*/
public function setAdapter($adapter, $direction = false, $options = array())
{
if (!is_string($adapter)) {
throw new Exception\InvalidArgumentException('Adapter must be a string');
}
if ($adapter[0] != '\\') {
$adapter = '\Zend\File\Transfer\Adapter\\' . ucfirst($adapter);
}
$direction = (int) $direction;
$this->adapter[$direction] = new $adapter($options);
if (!$this->adapter[$direction] instanceof Adapter\AbstractAdapter) {
throw new Exception\InvalidArgumentException(
'Adapter ' . $adapter . ' does not extend Zend\File\Transfer\Adapter\AbstractAdapter'
);
}
return $this;
}
/**
* Returns all set adapters
*
* @param bool $direction On null, all directions are returned
* On false, download direction is returned
* On true, upload direction is returned
* @return array|Adapter\AbstractAdapter
*/
public function getAdapter($direction = null)
{
if ($direction === null) {
return $this->adapter;
}
$direction = (int) $direction;
return $this->adapter[$direction];
}
/**
* Calls all methods from the adapter
*
* @param string $method Method to call
* @param array $options Options for this method
* @throws Exception\BadMethodCallException if unknown method
* @return mixed
*/
public function __call($method, array $options)
{
if (array_key_exists('direction', $options)) {
$direction = (int) $options['direction'];
} else {
$direction = 0;
}
if (method_exists($this->adapter[$direction], $method)) {
return call_user_func_array(array($this->adapter[$direction], $method), $options);
}
throw new Exception\BadMethodCallException("Unknown method '" . $method . "' called!");
}
}