private function readPart(EntityBodyInterface $body, $max = Size::MB)
{
return $body->read(min($this->partSize, $max));
}
/**
* Performs the work of reading the body stream, creating tree hashes, and creating UploadPartContext objects
*
* @param EntityBodyInterface $body The body to create parts from
*/
protected function generateUploadParts(EntityBodyInterface $body)
{
// Rewind the body stream
$body->seek(0);
// Initialize variables for tracking data for upload
$uploadContext = new UploadPartContext($this->partSize, $body->ftell());
// Read the data from the streamed body in 1MB chunks
while ($data = $body->read(min($this->partSize, Size::MB))) {
// Add data to the hashes and size calculations
$uploadContext->addData($data);
// If the upload part is complete, generate an upload object and reset the currently tracked upload data
if ($uploadContext->isFull()) {
$this->updateTotals($uploadContext->generatePart());
$uploadContext = new UploadPartContext($this->partSize, $body->ftell());
}
}
// Handle any leftover data
if (!$uploadContext->isEmpty()) {
$this->updateTotals($uploadContext->generatePart());
}
// Rewind the body stream
$body->seek(0);
}
