/
ChunkedIterator.php
66 lines (58 loc) · 1.22 KB
/
ChunkedIterator.php
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<?php
namespace Guzzle\Iterator;
/**
* Pulls out chunks from an inner iterator and yields the chunks as arrays
*/
class ChunkedIterator extends \IteratorIterator
{
/**
* @var int Size of each chunk
*/
protected $chunkSize;
/**
* @var array Current chunk
*/
protected $chunk;
/**
* @param \Traversable $iterator Traversable iterator
* @param int $chunkSize Size to make each chunk
*/
public function __construct(\Traversable $iterator, $chunkSize)
{
parent::__construct($iterator);
$this->chunkSize = $chunkSize;
}
/**
* {@inheritdoc}
*/
public function rewind()
{
$this->next();
}
/**
* {@inheritdoc}
*/
public function next()
{
$this->chunk = array();
$inner = $this->getInnerIterator();
for ($i = 0; $i < $this->chunkSize && $inner->valid(); $i++) {
$this->chunk[] = $inner->current();
$inner->next();
}
}
/**
* {@inheritdoc}
*/
public function current()
{
return $this->chunk;
}
/**
* {@inheritdoc}
*/
public function valid()
{
return !empty($this->chunk);
}
}